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5A - Greenways Master Plan UpdateCITY OF BOULDER ~~~`% •' ~ li n ~~~ Department of Pub c Works/Utilihes Div~sio - P.O. Box 791 1739 Broadway Boulder, Colorado 80306 (303) 441-3266 To: Mem6ers of Planning Board From: Anne Noble, Interim Greenways Coordinator Date: Apri112, 2000 Subject: Greenways Master Plan Update An implementation plan for the update of the Greenways Master Plan was developed in November 1998 and distributed to City Council, the five boards involved with Greenways and other interested parties. The Implementation Plan was divided into three phases. Phase I included an evaluation of the program to date and historical information about the program. During Phase II, opportunities for each program objective was to be evaluated based on future goals and criteria established for each objective. Recommendations from other master plans and the evaluation of environmental data was to be utilized to establish the goals and criteria. A list of projects and programs was to be developed based on the integration of the objectives, along with a financing strategy and evaluation of the organizational structure to implement the program. The final phase, Phase III, is the process and adoption by Council. The Master Plan Implementation Plan was intended to be dynamic in order to allow for and incorporate public comment into the process. The Phase I draft report was distributed to the board members, City Council and interested members of the public on June 8, 1999, in conjunction with a Greenways Open House. Over one hundred people attended the Open House. In addition to providing information about the Greenways Master Plan update, the Open House was also intended to provide general information and to solicit comments about the program. City staff is currently working on Phase II of the Implementation Plan. In order to complete the second phase of the Plan, a Greenways Riparian Habitat Assessment was performed last summer to fill the data gaps in the city's environmental information. A public presentation of the results of the study was held on October 23, 1999. This study represents a comprehensive evaluation of the quality of the riparian habitat along the 13 creeks that run through the city of Boulder. The methodology was designed to specifically compare the quality of riparian ecosystems within an urban environment and assesses both existing habitat quality as well as restoration potentiai. Based on information in the various master plans, the North Boulder Subcommuniry Plan and the recently completed Greenways Riparian Habitat Assessment, staff identified and evaluated goals and criteria for each of the objectives of the Greenways Program. Staff then J:WMN\GREENWAY~PLAN4-20. WPD identified opportunities for each of the Greenways objectives along the designated tributaries and Boulder Creek. This information was presented for public comment in a meeting on March 2, 2000. The opportunities were shown on aerial photographs and in text forma; :n the Greenways Master Plan Reach Inventory. A copy of the Reach inventory is attached. NEXT STEPS: City staff is currently in the process of reviewing the comments that were received regarding the proposed plan for the Greenways corridors and preparing a list of projects and programs, as well as a proposed financing and maintenance strategy that will be presented to the boards and City Council. Staff will also continue to evaluate the future organizational structure of the Program and procedures and processes for project planning and public involvement. It is anticipated that a draft plan will be presented to the boards for review :3nd recommendation to Council in May or June 2000. The Implementation Plan developed in November 1998 anticipated completion of the Greenways Master Plan in December 1999. While much of the information needed to complete the Greenways Master plan is currently available, some critical data still needs to be evaluated. City staff is currently in the process of evaluating flood information along two of the Greenway tributaries, Fourmile Canyon Creek and Wonderland Creek. Since the Green~vays Master Plan relies on this information to identify and coordinate flood mitigation opportunities with the other program objectives, staff felt that the Greenways Master Plan should incorporate the recommendations of these studies that currently are being developed. T'he recommendations of the Greenways Riparian Habitat Assessment will also be incorporated into these flood studies. The Fourmile Canyon Creek Master Plan Phase A report, which evaluate various flood mitigation alternatives, should be completed by June 1, 2000. T'he Fourmile Canyon Creek study includes the evaluation of the impact of a spill to Wonderland Creek. The Phase A report will be reviewed by all of the appropriate advisory boazds, including the Planning Board, with an opportunity to provide recommendations on a selected alternative. It is anticipated that the Phase A report and staff recommendation will go to City Council by the end of August 2000. Attachment: Greenways Master plan Update Reach Inventory J:WMN~GREENWAY~PLAN4-20. WPD Greenways Master Plan Update Reach Inventory Stream: Fourmile Canyon Creek Reach: 1 (FCC 16) Location: Diagonal Hwy. to west side of Pleasantview soccer fields. Habitat conditions: Vegetation structure: Good Native plant habitat: Poor Bird habitat: Very good Aquatic habitat: Fair Primary (streambed): Good Secondary (channel morphology): Fair Te~tiary (bank stability): Good Vegetative bank stability: Good Other conditions: ~ti: Trail runs along south sid~ of creek 8nd wetl~lrtds. Minor drainage issu~ und~`47~r~,t: / Flooc~w~ter overtt~pS 47th St. frequently. Channel is choked~with fa!!en ~bri~:from,~rees~;=. ~ °~--~=~.,r. ~ ~ ~~~ ~ ..<. . , ~ ~.<.. ~.~. F~~.. ~ _ Opportunities: Transportation/Recreation: • Complete trail connection and underpass under Diagonal and RR tracks. Flood management: • Mitigate flood hazard and drainage issues according to the Fourmile Canyon Creek Master Plan. • Increase flood capacity under 47th St. to drain overbank flooding south of creek. • Maintain flood conveyance capacity through a c~mbination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Habitat protection: • Preserve and enhance high quality bird habitat. • Control non-native vegetation (Remove Russian olives and other weedy species). Water quality: • Provide BMP treatment for stormwater outfall at 47th St. 1 Stream: Fourmile Canyon Creek Reach: 2 (FCC 16, 15, 14) Location: West of Pleasantview soccer fields to 28th St. Habitat conditions: Vegetation structure: Good Native plant habitat: Poor to good Bird habitat: Poor to very good Aquatic habitat: Fair Primary (streambed): Poor to good Secondary (channel morphology): Fair to good Tertiary (bank stability): Good Vegetative Bank Stability: Good Other conditions: • Trail runs along north side of creek • Wide trapezoidal channel with concrete cut-off wall drops in Palo Park is highly aggraded and contains heavy sediment depQSiticat~. ~~~•-. - s~~ ~ • Channel is sand boftom a~~td wide vv~ no de~[ned ban~s in. certair,~areas. • Sediment dredged~~'om th~71o~~~°crossi,~g ~stoc '" in the adjacent wetland to the east. • Some flood capacity may be last ~~ie to seclim~r~#atio€~;in channe~~= • Good signs of vegetative succ~siorr~rvit~t=heavy.~iyd~~phytic vegetation. Weeds are dominating on deposited sediment areas. 2 Stream: Fourmile Canyon Creek Reach: 2 (FCC 16, 15, 14) Location: West of Pleasantview soccer fields to 28th St. Opportunities: Transportation/Recreation: Flood management: • Mitigate flood hazard and drainage issues according to the Fourmile Canyon Creek Master Plan. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. • Create low flow meandering creek and lower terrace wetland/riparian zones between 28th and 30th St. Habitat protection: • Enhance ciparian area in,Qpen Space easemer~i.whece bi~d.k~abitat quality is very good by plantingnative_vege#atio~f~along i~acted channef. ~~ ~" • Monitor fo~weed and ~~ent ma~a~menttlownstreartt of 30th St. • Improve habitat qualitywitt~k~flood capacity improvements~;~.. ..4.~_.~.. n. . _.. _,~:~:Mw Water quality: • Restore disturbed areas along the banks and improve stream bank stability. • Incorporate BMP's upstream of 30th St. to treat storm sewer outfalls. Stream: Fourmile Canyon Creek Reach: 3 (FCC 12, 11, 09, 07) Location: 28th St. to 19th St. Habitat conditions: Vegetation structure: Good to very good Native plant habitat: Very poor to good Bird habitat: Poor to good Aquatic habitat: Fair Primary (streambed): Fair to good Secondary (channel morphology): Poor to fair Tertiary (bank stability): Good Vegetative Bank Stability: Fair to good Other conditions: • No paved trail. Social trail exists along the north side of creek from 28th to 26th St. • Lots of bank sloughing and severe bank erosion along some areas in the Elks property and Githens Acres. • Lots of trash and debris in cree~C along entire;~oute. _ ~~ .~,w ~ w~ • Banks stabilized witF~ rock;arvatls, co~rete w~1~, and ~ncre#e rubble. ` ~,~ _~ ~ ~.~,rr ,~ _ ~ . _ _ . ~ . ~-~ 4 Stream: Fourmile Canyon Creek Reach: 3 (FCC 12, 11, 09, 07) Location: 28th St. to 19th St. Opportunities: Transportation/Recreation: • Complete trail connections according to the North Boulder Subcommunity Plan. • Manage access to and use of the riparian areas and creeks within Elks Park. • Complete connection from 26th St. to 28th St. (Locate trail out of riparian area and north of creek), and from Fourmile Creek to Wonderland Creek. • Construct soft-surface pedestrian only path between Garnet Ln. and 19th St. • Re-evaluate multi-use path from 19th to Garnet Ln. and between Garnet Ln. and 26th. St, as part of flood mitigation plan. • Construct trail underpass at 19th St. and combine a new bridge and culvert at 26th St. with a trail underpass. Flood management: • Mitigate flood hazard-and~drainage issues according to the:Fourmile Canyon Creek Master Plan. ~ • Excavate and grad~ overbank and expand ri~arian and b~ffer areas. • Consider passive ~pod ma~?gement i~i.pa~ts tif the reach-- especially in the Elks Park. • Eliminate.driueway crcissing neacSumacAve::,.._ ~ --, • Improve capacity at 19th and 26th St. culverts. • Eliminate spill flow to Wonderland Creek. • Maintain flood conveyance capacity through a combination of sed+ment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the Cit~s preflood acquisition program. Habitat protection: • Protect high quality vegetation structure and enhance wildlife and native plant habitat quality. • Explore increasing in-stream flow. • Enhance understory and ground cover with native plantings. • Improve and expand quality of riparian buffer and manage weeds, exotics, and dumping through homeowner education. Water quality: Remove concrete and other bank structures and revegetate banks where needed. 5 Stream: Fourmile Canyon Creek ~ Reach: 4 (FCC 07, 05, 04) ~ i Location: 19th St. to west side of Boutder Valley Meadows Park (13th St.) ~ I Habitat conditions: Vegetation structure: Very good Native plant habitat: Poor to good Bird habitat: Poor to good Aquatic habitat: Fair Primary (streambed): Fair Secondary (channel morphology): Poor Tertiary (bank stability): Good Vegetative Bank Stability: Fair to Good Other conditions: • No trail exists • The creek is getting considerable use with lots of trash, human waste, and debris along the creek. .~ ~~ ~ ~a= ~ ~~,.~: ~,. ~ "~ ~ N '.~ ~,.:' ~ :. '~;:t- t, . _..~ . ,..~,.. ~' ..r~~.~ f.:..a ~' 'i~ ~:'~._ _~~. - . ~. 6 stream: Fourmile Canyon Creek Reach: 4 (FCC 07, 05, 04) Location: 19th St. to west side of Boulder Valley Meadows Park (13th St.) Opportunities: Transportation/Recreation: • Off-street trail connections from 19th St. to Broadway. • Locate trail near Violet and outside of riparian area. • Construct trail between Violet and 19th St. in the future neighborhood park site. • Construct trail underpasses at Violet Ave., Upland Ave.., and 19th St. Flood management: • Mitigate flood hazard and drainage issues according to the Fourmile Canyon Creek Master Plan. • Excavate and grade overbank in park and expand riparian and buffer areas. • Eliminate spill flow to Wonderland Creek. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris remoual and vegetative thinning vvithin the conveyance zones. • Acquire properties in the high hazard zone acxording to the City's preflood acquisition program. ~_`~ , .. ~ ~ ~ ~ Habitat protectior~:~~~..~ ~~ _ Enhance wildlife habitat quality through weed management and native plantings. Explore opportunities for enhancing riparian area through park development. Remove and revegetate social trails. Water quality: • Stabilize impacted banks through biostabilization. • Explore opportunity for water quality best management practice and flood mitigation in park. 7 Stream: Fourmile Canyon Creek Reach: 5 (FCC 03, 01) Location: West side of Boulder Valley Meadows Park to Open Space Habitat conditions: Vegetation structure: Poor to good Native plant habitat: Good to very good Bird habitat: Good Aquatic habitat: Poor Primary (streambed}: Fair (to Sroadway) Secondary (channel morphology): Poor Tertiary (bank stability): Fair Vegetative bank stability: Fair to good Other conditions: . Trail runs along south side of creek west of Broadway. Channel is very straight with constructed drop/pool structures. Sediment and cobble collect in pools. Low water crossin~ ptoblem a~.#k~e_Broadwav underpass. ~ .._, . _ . _ ~ ~:~~- 8 Stream: Fourmile Canyon Creek Reach: 5 (FCC 03, 01) Location: West side of Boulder Valley Meadows Park to Open Space Opportunities: Transportation/Recreation: Complete trail connection to North Boulder Foothills Park and the Foothills Trail. Locate trail outside of riparian area. Complete trail from 13th St. Flood management: • Mitigate flood hazards and drainage issues according to the Fourmile Canyon Creek Master Plan. • Construct new underpass at Broadway for conveyance capacity and trail connection. • Capture and direct floodwater to creek near Open Space. • Excavate and grade overbank and expand riparian and buffer areas. • Eliminate spill flow to Wonderland Creek. • Maintain flqod conveyar~ce capacity through a combinatio~a.of sediment removal and selective debris remov~l and vegetative thinning within tfie conveyance zones. • Acquire prpperties in the high hazard zone according to the City's preflood acquisition program. ;;a Habitat protection: Enhance habitat quality through weed management and native plantings. Closely monitor the success of vegetation/plantings. Explore opportunities to widen riparian areas through redevelopment. Water quality: Construct BMPs with new devetopment to manage sediment loads. Maintain pools regularly to manage sediment. Provide BMPs at major outfalls when feasible. 9 Stream: Wonderland Creek Reach: 1 (WC 16) Location: North Goose Creek to Valmont Rd. Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology): Tertiary (bank stability): Vegetative bank stability: Poor Poor Poor Poor Poor Poor Fair where channef exists Poor where channel exists Other conditions: No trail exists There is currently no channel in much of this reach. Channel to be constructed according to the Valmont City Park Master P{an. Flood management: • Mitigate flood hazards and drainage issues according to CDUMP. • Construct new channel between Goose Creek and Valmont Rd. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: Water quality: Recreate aquatic habitat during channel construction. 10 Stream: Wonderland Creek Reach: 2 (WC 16, 15, 14, 13) Location: Valmont Rd. to Foothilis Parkway Habitat conditions: Vegetation structure: Poor to good Native piant habitat: Poor to excellent Bird habitat: Very poor to poor Aquatic habitat: Poor Primary (streambed): Poor Secondary (channel morphology): Poor Tertiary (bank stability}: Fair Vegetative bank stability: Poor to Fair Other conditions: Trail exists Channel ends at Boulder and Lefthand ditch. A large drop/pool is to be constructed here Opportunities: ~~ ~ ~ "~~~ Tra nsportation/Recreatit~n • Provide connection to future trail to 63rd St. and Gunbarrel. • Provide connection through Valmont park to North Goose Creek. Flood management: • Mitigate flood hazards and drainage issues according to CDUMP. • Construct new channel between Goose Creek and Valmont Rd. • Open underpass under Valmont Rd. with channel construction. • Capacity improvements along existing drainageway. • Excavate and grade overbank and expand riparian and buffer areas. • Improve capacity at the Diagonal Hwy., Iris, and 28th St. culverts. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: Manage weeds in Noble Park and Christiansen Park. Widen riparian area in Christiansen Park as part of park and flood improvements. Water quality: Improve stream bed, channel and bank characteristics. 11 Stream: Wonderland Creek Reach: 3 (WC 13, 12, 11, 10, 9) Location: Foothills Pkwy. ta 28th St. Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology): Tertiary (bank stability): Vegetative bank stability: Poor to very good (mostly good) Poor to excellent Very poor to poor Poor to fair mostly fair, some poor Poor Fair Mostly fair, some good Other conditions: 13 Stream: Wonderland Creek Reach: 3 (WC 13, 12, 11, 10, 9) Location: Foothilis Pkwy. to 28th St. Opportunities: Transportation/Recreation: • Construct underpass under Diagonal for flood ma~agement and trail connection. • Construct new underpasses at 28th St. and at Iris for flood management and trail connection. • Construct traii from 30th St. to 47th St. Route undetermined. • Provide connection to Howard Heuston Park. Flood management: • Mitigate flood hazards and drainage issues according to CDUMP. • Capacity improvements along existing drainageway between 34th St. and the Diagonal. • Excavate and grade overbank and expand riparian and buffer areas. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal.and vegetative thinning,.within:the conveyance zones. • Acquire properties in the high hazard ~one aCCOrding to the Cfty's preflood acquisition program. ~ _. -°°~ ~ :~ x. . ~ ~ ,, Habitat protection:- ~ ~~ .. ~~ ~...~_ -~ ~ .__ ,~ ~ _ • Work with landowners to improve habitat conditions by controlling exotic weed species, removing Russian olives and thistle, and limiting mowing. • Control reed canary grass infestation downstream of 34th St. and manage for native vegetation. • Widen riparian area by defining mowing edge. • Control grade of underpass under the Diagonal to minimize drainage of upstream wetlands. • W iden riparian area upstream of Iris. Water quality: • Improve water quality through best management practices and bioengineering. • Provide a BMP near the Boulder Bank. • Daylight creek along the east side of 28th St. and provide a BMP behind the existing parking lot. • Remove drops and concrete north of Kalmia. Restore to a more natural condition to enhance water quality. 14 Stream: Wonderland Creek Reach: 4 (WC 09, 08, 07, 06) Location: 28th St. to 26th St. Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary {channel morphology): Tertiary (bank stability): Vegetative bank stability: Very poor to good Poor to good Very poor to good . Poor Poor Poor Fair Poor to fair (Concrete wall trickle channel.) Other conditions: No tr~il exists Opportunities: r_. ~_~ ..; ,. Transportation/Recreatia~t: ~~`~~ ~ ~ • Install a bcs3c-cWlve~t un~er 2~i St._with.a-:#rail~~nnectior~. .'- • Construct trail connection according to the North Boulder Subcommunity Plan. • Provide trail connection between Wonderland and Fourmile Canyon Creek through the Elks property. Flood management: Mitigate flood hazards and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: Improve riparian habitat by planting native trees and shrubs Water quality: Remove concrete from channel and replace with targeted structural improvements and bioengineering for bank stabilization. Explore opportunity for outfall treatment at 28th St. 15 Stream: Wonderland Creek Reach: 5 (WC 06, 05) ~ I Location: 26th St. to west side of Centennial Middte School ~ i Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology) Tertiary (bank stability): Vegetative bank stability: Good Good Good to very good . Fair Poor to fair Fair to poor Fair to good Fair to good Other conditions: • No trail exists • No channel through the school property. Opportunities: ~.._,--r . .- ~:-_,.r: ,,,.. _. , . Transportation/Recreatian: ~ ~ ~ ,,;,,; ~ N -~ ~~; • Construct ~i~~o~tnec~n aip~~~orth ar~~ea~~ side of sCk~ool. Flood management: • Mitigate flood haiards and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and se~ective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Control exotic species and reduce mowing in buffer area through homeowner education. • Promote native revegetation of woody species along drainage area. • Protect and enhance high qualiry wetlands in Pampas Ct. Water quality: • Explore daylighting creek north of Centennial field. 16 Stream: Wonderland Creek Reach: 6 (WC 04, 03, 02) Location: West side of Centennial Middle School to 15th St. Habitat conditions: Vegetation structure: Poor to good Native plant habitat: Poor to good Bird habitat: Poor to good Aquatic habitat: Fair Primary (streambed): Poor to good Secondary (channel morphology): Fair to poor Tertiary (bank stability): Fair Vegetative bank stability: Fair to good Other conditions: • No trail exists. • Unconfined channel. • Subdivisions and new house construction is having an impact on the condition of the habitat. • Fencing, water diversions, and mowing are also causing, an impac#. 17 Stream: Wonderland Creek Reach: 6 (WC 04, 03, 02) Location: West side of Centennial Middle School to 15th St. Opportunities: Transportation/Recreation: Construct traii between Garnet and 19th St, and between Garnet and Poplar. Re-evaluate off-street trail opportunities considering North Boulder Subcommunity Plan. Flood management: • Mitigate flood hazards and drainage issues according to CDUMP. • Consider passive flood management. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. • Re-establisk~:channel near 19th St. ... ~ ,~; ~ti~ _ .,xti. e , ~ , a`'~~ ; ~- Habitat protection: ~- ~;~: ~ e, • Improve n~iue plant haiaitaf z~uality and ~regeC~tive struct[tre. • Control weeds and exotics (expecially reed canary grass and knapweed), and dumping of yard waste through homeowner education. Water quality: • Explore opportunities for BMPs at 19th St. outfalls. • Improve stream bed characteristics at upstream end of this reach by providing appropriate substrate and riffles. • Preserve and enhance meandering low-flow channel. • Use vegetation to maintain bank stabiiity. 18 Stream: Wonderland Creek Reach: 7 (WC 01) Location: 15th St. to Broadway Habitat conditions: Vegetation structure: Good Native plant habitat: Poor Bird habitat: Poor Aquatic habitat: Primary (streambed): Good Secondary (channel morphology): Good Tertiary (bank stabiliry): Good Vegetative bank stability: Good Other conditions: • No trail exists. • City drainage easement along the channel. Channel is concrete wall with a trickle channel. Easement is maintained by the homeowner's association. Opportunities: TransportationlRecreation: ~ ~ ~- _.~, _ _. w~~- _ Flood management: • Mitigate flood hazards and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Improve native plant habitat and vegetative structure. • Work with homeowners to widen and enhance riparian area through revegetation of native plants and limiting mowing in buffer area. Water quality: • Provide BMPs near 15th St. • Remove concrete walls and revegetate for bank stability. 19 Stream: Wonderiand Creek Reach: 8 Location: West of Broadway Habitat conditions: Vegetation structure: n.a Native plant habitat: n.a Bird habitat: n.a Aquatic habitat: n.a Primary (streambed): n.a Secondary (channel morphology): n.a Tertiary (bank stability): n.a. Vegetative bank stability: n.a Other conditions: • Trail connects from Broadway to Broadway underpass. • Managed as open space by the Open Space Department. Opportunities: Transportation/RecreatiC~n: ~ ~ t~ Flood managemer~#; _ ~ s~k. ~~ ~~ _.~ ~~~_ Habitat protection: Water quafity: 20 Stream: Goose Creek Reach: 1 Location: North Goose Creek from Pearl Pkwy. to Foothills Pkwy. Habitat conditions: Vegetation structure: Not rated Native plant habitat: Not rated Bird habitat: Not rated Aquatic habitat: Not rated Other conditions: The creek in this iocation is a wide, dry, grassed-lined trapezoidal channe(. There is very little diversity of vegetation in this reach. The Kline water rights underdrain dewaters most of the creek in this area. . Opportunities: Transportation/Recreation:. ,. : , • Construct trail underpass:~nder Foothills Pkwy: . • Construct trail along N~rth`~oose;C~~k between Foothills Pkwy and existing trail and provide cor~r~e~~ions ta~Valm'+~t~~ity Pacdc.~. « ~ ._. Flood management: Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Restore channel as a functional wetland with native plantings - possibfy through mitigation banking. • Develop pilot restoration project between Valmont Park and Pearl Pkwy. Remove structured channel and restore wetlands using bioengineering approaches. Water quality: • Improve water quality treatment functions of pond at junction of Wonderland and North Goose Creeks. ~ • Provide BMP for outfalls from city yards and park. 21 Stream: Goose Creek Reach: 2 (GC 16, 15, 14, 13) Location: South Goose Creek from Pearl Pkwy. to Foothills Pkwy. Habitat conditions: Vegetation structure: Very poor Native plant habitat: Poor to very good Bird habitat: Very poor to good Aquatic habitat: Poor Primary (streambed): Poor Secondary (channel morphology): Poor Tertiary (bank stability): Fair Vegetative bank stability: Poor Other conditions: Previous improvements used rock bank stabilization along narrow trickle channel. Opportunities: a~~~~., ~~,.,, g , Transportation/R~reatic~n: ~ ~~. ;. ~ ~~ ,~: • Construct.r~ew. trail along on~,sid~,-of th~~ha~iael. __.~. • Construct underpasses at Pearl Pkwy, Foothills Pkwy, 47th St., 48th St., and 49th St. Flood management: Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: Improve wetland habitat conditions. Restore wider wetland habitat within trapezoidal channel - possibly through mitigation banking. Consider pilot restoration project in conjunction with Pearl Pkwy. improvements. Water quality: Provide BMP for outfall from city yards. Restore aquatic habitat quality by removing rock drops and structural channel and replacing with bioengineered approaches. Improve stream bed and channel morphology characteristics. 22 Stream: Goose Creek Reach: 3 (GC 09, 08) Location: Foothills Pkwy. to RR Habitat conditions: Vegetation structure: Very poor to poor Native plant habitat: Good to excellent Bird habitat: Poor Aquatic habitat: Fair to poor Primary (streambed): Poor Secondary (channel morphology): Poor Tertiary (bank stability): Good Other conditions: • Trail exists. Opportunities: Transportation/Recreation: t : ~. • Construct new underp~ss t;mder Foothills Pkvi~y. • Improve cc~nnee~ionsx~busir~ess.park.. ~~~~~~~: ~~~. ~ _ .- Flood management: • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Maintain and improve high quality native plant habitat. Improve vegetation structure by planting more native trees and shrubs. • Manage weeds and monitor vegetation to protect good native plant habitat. • Inventory for Preble's meadow jumping mouse with any future improvements. Water quality: • Provide water quaiity treatment features at storm water outfalls. 23 Stream: Goose Creek Reach: 4 (GC 08, 07) Location: RR to 28th St. Habitat conditions: Vegetation structure: Very poor to poor Native plant habitat: Poor to excellent Bird habitat: Poor Aquatic habitat: Fair to poor Primary (streambed): Fair to poor Secondary (channel morphology): Fair to poor Tertiary (bank stabiiity): Fair Other conditions: Trail exists up to 30th St. Goose Creek channel improvements from 30th St. to 28th St. are scheduled to begin this winter. Trail connections, flood improvements, and channel creation are included in the design. Flood management: Construct new channel from 30th St. to 28th. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: Improve habitat quality from 30th St. to 28th St. by restoring channel and planting native vegetation. Manage weeds. Water quality: Improve water quality function from 30th St. to 28th St. by restoring vegetative channel conditions. Provide water quality treatment feature at 30th St. for outfalls. 24 Stream: Goose Creek Reach: 5 (GC 05, 04) Location: 28th St. to Folsom St. Habitat conditions: Vegetation structure: Very good Native plant habitat: Poor Bird habitat: Poor Aquatic habitat: Fair Primary (streambed): Fair to good Secondary (channel morphology): Fair Tertiary (bank stability): Fair Vegetative bank stability: Fair to good Other conditions: • No trail exists. • No channel exists for much of the reach. • See Goose Creek Channel Improvements Plan. Opportunities: Transportation/Recreation ~~,;; • ~ - - -. , ~ .~.. ~ ~ . ~~~ ~,. ~-- • Construct trail connections and underpass according to the Goose Creek Channel Improvements Plan. • Construct underpass at Folsom St. for flood mitigation and trail connection. Flood management: • Construct flood improvements according to the Goose Creek Channel Improvements Plan. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. • Construct culvert and trail connection under 28th St. Habitat protection: Water quality: • Provide BMPs upstream of 28th St. in conjunction with Goose Creek Channel Improvements. 25 Stream: Goose Creek Reach: 6 (G~ 03, 01) Location: Folsom St. to 13th St. Habitat conditions: Vegetation structure: Poor to good Native plant habitat: Poor Bird habitat: Poor Aquatic habitat: Primary (streambed): Poor Secondary (channel morphology): Poor to fair Tertiary (bank stability): Fair Vegetative bank stability: Fair to poor Other conditions: • Banks are extremely unstable between 19th St. and Folsom. Opportunities: . _ ~_~._:.r~ ' ~°~ _ TransportationlRecreatio~: ~'~~~~ ~ ~~:: ~ ~; ~; . „ Flood management: ~ ~ ~- ~ ~~~~~ ~-~ ~_- -~ - • Mitigate flood hazards and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acguire properties in the high hazard zone according to the City's preflood acquisition program. • Provide underpass at Folsom. Habitat protection: • Enhance quality of the vegetation structure and bird habitat. • Use homeowner education to enhance vegetation and control weeds. Water Quality: • Use bioengineering approaches to enhance vegetative bank stability. • Provide water quality treatment features for outfalls along Edgewood Drive. • Evaluate potential to daylight creek from 13th to 17th Sts. • tmprove r+parian habitat to serve as BMP for stormsewer outfalls along reach. 26 stream: Elmer's Two Mile Creek Reach: 1 (ETC 05, 04, 03, 02, 01) Location: Goose Creek to Parkside Park Habitat conditions: Vegetation structure: Very poor to good Native plant habitat: Very poor to good Bird habitat: Very poor to poor Aquatic habitat: Poor Primary (streambed): Poor Secondary (channel morphology): Poor Tertiary (bank stability): Fair Vegetative bank stability: Poor Other conditions: • No trail exists. • Weedy understory and overstory. Frequent mowing in buffer area has limited habitat quality. • Upstream of Kalmia, the creek is constructed of concrete and gabions with no natural features. Downstream of Glenwood, the cancrete is gone and.the veget~~iq~.spreads out to make a more natural area. ~ k ~~ . -- .. z,.._ -. ` ~~~.... 27 Stream: Elmer's Two Mile Creek Reach: 1 (ETC 05, 04, 03, 02, 01) Location: Goose Creek to Parkside Park Opportunities: Tra nsportation/Recreation: Construct off-street trail from Parkside Park to Goose Creek. Construct underpasses under Valmont Rd., 26th St., Iris Ave, and Glenwood in conjunction with flood improvements. Flood management: • Flood mitigation and capacity improvements along channel south of Iris Park and north of Valmont. • lmprove flood conveyance underpass at Glenwood. • Construct channel between Goose Creek and Valmont Rd. to mitigate flood hazards. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire pe~per~ies in-tk~e..k~igh hazard~zone ac.~r~i~g~~a~e-~ity's preflood acquisition program ~ ~' ~ ~ ~ . ~ _ • Construct tiitch fltir~e ~t,Bcc~ulder an~1 Whiter~k•~itch. _ ~,,, Habitat protectio~: =-~s~~° ~ - - . -. ,~,. _- - -, • Enhance riparian area through Elmer's Park and Parkside Park. • Modify creek to have more natural gradient where possible - combine with flood and trail improvements. • Remove concrete along the channel where possible and restore to a more natural condition. • Discontinue ditch capture in mobile home park and remove concrete channel. Water quality: • Provide BMPs adjacent to Kmart and other parking areas adjacent to creek (See Elmer's Park master plan). • Improve habitat at Elmer's Park with vegetative bank stabilization approaches in low flow channel. • Provide BMP at storm sewer outlet north of Glenwood. • Remove concrete from Elmer's Park down to Glenwood and restore creek banks using biostabilization. 28 Stream: Boulder Creek Reach: 1 (BC 51, 50) Location: 63rd St. to Goose Creek Habitat conditions: Vegetation structure: Good to very good Native plant habitat: Poor to good Bird habitat: Good Aquatic habitat: Good Primary (streambed): Good (at Goose Creek) Secondary (channel morphology): Good Tertiary (bank stability): Good Vegetative Bank Stability: Good Other conditions: • Trail exists. • Concrete revetments on the right bank are failing and are undercut. There is a concrete drop structure with a concrete block jutting out of the creek. • The vegetation is_do~ninated t~y_ exotics. Linear covecb~r.sandb,ac,.~~l~illow along the creek could provide good coverfior Preble's meadow jumping mouse. ~=' = -- ~ 29 stream: Boulder Creek ~ Reach: 1 (BC 51, 50) ~ Location: 63rd St. to Goose Creek Opportunities: Transportation/Recreation: • Provide a trail connection to Gunbarrel. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • {mprove levee behind Syntex property. • Maintain flood conveyance capacity through a combination of sediment removal and se{ective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program . Habitat protection: • Protect ani~ enhance fi~gh quality ha~~tat. • Manage wE~ds ar~d replar~t with native veget~ion:~ • Control illegal carnping"in ~ea. ~` , _ ~ ~-F. . ~ F,, ._~ Water quality: • Implement BMPs in conjunction with Syntex levee improvements and for the outfall from the office use at 55th St. and Boulder Creek. • Remove failed and undercut concrete bank protection and replace with bioengineering approaches. • Remove concrete block from drop/pool. • Stabi{ize bank directly east of 55th St. 30 stream: Boulder Creek Reach: 2 (BC 50, 49, 48, 47) Location: Goose Creek to FoothiHs Pkwy. Habitat conditions: Vegetation structure: Good Native plant habitat: Poor to good Bird habitat: Poor to good Aquatic habitat: Fair to good Primary (streambed): Good Secondary (channel morphology): Good Tertiary (bank stability): Fair to good Other conditions: . . Trail exists Wetlands adjacent to Pearl St. Business Park have Ute ladies~ tresses orchid. Cottonwood Grove is dominated by exotics, primarily crack and golden osier willows. Creek has mainly riffles. Natural channel processes taking place downstream_, _Erosion, channel bars, point bars, cross- overs. No real drops, but pools:are:present ~# fallen trees. 31 Stream: Boulder Creek Reach: 2 (BC 50, 49, 48, 47) Location: Goose Creek to Foothitls Pkwy. Opportunities: Transportation/Recreation: Provide trail access from Arapahoe Ave. on 48th St. to the Boulder Creek trail. Manage social trail system_ Restrict soft trail use by closing and revegetating nondesignated social trails. Flood management: • Widen drainage swales from Arapahoe Ave. to a11ow more drainage collection and enhance wetlands. • Mitigate flood hazard and drainage issues according to GDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. _ ~ ,~a~.E~. m.~ ~~' _ , ;~fi ,.x . '° ,. Habitat protection: ~~' . ~ ~ ~. . _. ; ~__ . _ - n.., • W iden and revegetate-~iparian cc~r.ridor -duhere feasible. f~~-. • Protect and enhance Cottonwood Grove. • Control weeds and replant with natives. • Remove concrete debris. • Protect and enhance wet meadows and conveyance zone on property east of FoothiVls Pkwy. • Work with landowner north of the creek to protect and enhance existing Spiranthes diluvialis population. Water quality: Implement BMPs as part of new development at the property at Arapahoe and Foothills Pkwy.; and at the outfall from Pearl St. Business Park. Opportunity for stream restoration which might include improving instream cover, restoring vegetative bank stability and increasing channel complexity. 32 Stream: Boulder Creek Reach: 3 (BC 45} Location: Foothills Pkwy. to Arapahoe Rd. Habitat conditions: Vegetation structure: Good Native plant habitat: Very poor Bird habitat: Poor Aquatic habitat: Fair Primary (streambed}: Good Secondary (channel morphology): Good Tertiary (bank stability): Fair Vegetative bank stability: Fair to good Other conditions: • Trail exists • Channel banks are relatively steep, but vegetated with rootwads and moss. Many access points. • Stream corridor gets very narrow just upstream of FoothiUs Parkway.. Concrete rubble and other debris in the creek: Exotic vegetation dominate~ canopy, subcanopy, and herbaceous . B; . groundcover. "' _ 33 Stream: Boulder Creek Reach: 3 (BC 45) Location: Foothills Pkwy. to Arapahoe Rd. Opportunities: Transportation/Recreation: Connect Arapahoe multi-use path to Boulder Creek trail and provide access to north side of Arapahoe. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: w-,~.,,..~ ..,,. ~,~~ . ...,.. • ~~ds. ~ ~, ~~ `~ ~,~ Control w~e ~ • Enhance and wideil rip~rian area vVith t'tative plan#ings. • Manage tr~mplin,g~'~f strea'mbank by revegetating impacted areas of the riparian area and banks~~byamanagir~g acc~ss points: ~sta~ish locali~tl boater access to limit bank erosion near Jose Muldoon's. • Clean up trash. Water quality: 34 I Stream: Boulder Creek Reach: 4 (8C 42, 39, 37) Location: Arapahoe Rd. to 30th St. Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology): Tertiary (bank stability): Vegetative bank stability: Other conditions: . . . Very good Very poor Poor to very good Poor to very good Good (with one fair reach (BC42) Good (with one fair reach (BC42) Fair Good Trail exists. Lots of bank erosion and trampling from access. Cobble deposit under the 30th St. bridge and downstream. Rock walls, concrete rubble, trash, constructed drops, debris in the creek. Sump pump for dewatering the.,path is discharging ru~iy,water ta th~-creek. Vegetation along this reach is domin8ted by exotics. ~he overstory is entirely crack willow with almost no shrub ca~opy. ,_ ~~ ~ ~ ,...~.., ~; _ ~.. y-- _.~, _ 35 Stream: Boulder Creek Reach: 4 (BC 42, 39, 37) Location: Arapahoe Rd. to 30th St. Opportunities: Transportion/Recreation: Provide connection to CU family housing on the east side. Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Work with GU to prot~t-mar~d enhance native~p{ant and bird ~i~bitat quality at the CU Research F~ark. '~~~ ~ • Control weeds andtexr~tacs°~ y • Close soci~l trails`firom.ripacian area and revegetate. • Remove t-~sh and cori€~Fete~bk~le. -~ _ Water quality: • Protect and enhance complex channel structure. Improve instream cover and riffle structure of creek. • Reduce erosion through biostabilization. • Fix trail drainage issue under Arapahoe Ave. (see conditions above) • Work with CU to implement BMPs at the CU Research Park. 36 stream: Boulder Creek Reach: 5 (BC 34, 32, 30} Location: 30th St. to Folsom St. Habitat conditions: Vegetation structure: Good Native plant habitat: Very poor to poor Bird habitat: Very poor to good Aquatic habitat: Fair Primary (streambed): Fair to good Secondary (channel morphology): Good Tertiary (bank stability): Fair Vegetative bank stability: Fair to good Other conditions: • Trail exists. • The creek is very confined near the hotel tennis courts and the Gold Run condos. The buildings are built into the creek banks. The drop structure in this location is being undercut. The access for cleaning the head gate is very eroded. . • Lots of trash, concr~ete rubble, curb stops, and constructed drops: • Stream bottom is f~tlly gro~ted u~der'the 28th ~#. bridgew- • Lots of erosion and`~rampfttag frt~rri°~~ocial acce~s-points. • Sedimentation unc~ #he'30th ~#. bridge. _ ., . • The vegetation is primarily exotic, limited to a narrow band of trees. 37 Stream: Boulder Creek Reach: 5 (BC 34, 32, 30) Location: 30th St. to Fotsom St. Opportunities: Transportation/Recreation Improve trail connection between Bouider Creek trail, the Village shopping Center, and Crossroads Mall along 28th St. Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: ~ ~,~,-a,. • Use homeowner ieduc8tion'ttt: Conti~l weeds ~Canada tl~istle); limit mowing in buffer areas; introtiuce native.platt#ings in;~buffer are~s; and lim~f`access point to the creek to preserve bank stab~lit~ `~ ~~ '~ ~~' ~ ~ ~ ~ r{: • Enhance nati~eveget~~ion.'~~ -~- -- -. - -7 . • Soften rock structures and drops in the creek to enhance aquatic habitat. • Limit further impacts to streambanks and riparian area through the hotel site. • Close and reclaim social trail along the creek bank. Water Quality: • Implement BMPs at the 30#h St. and 28th St. outfalls. • Improve instream cover befinreen 28th St. and 30th St. • Provide a swale as a BMP along the west edge of Scott Carpenter Park. • Pave headgate maintenance access road to reduce sedimentation. 38 Stream: Boulder Creek Reach: 6 (BC 28, 26, 22) Location: Folsom St. to 17th St. Habitat conditions: Vegetation structure: Poor to very good Native plant habitat: Very poor to good Bird habitat: Very poor to poor Aquatic habitat: Good to fair Primary (streambed): Good Secondary (channel morphology): Good Tertiary (bank stability): Fair to good Vegetative bank stability: Good to fair Other conditions: . . . . Trail exists. High use of the area has resulted in numerous uncontrolled access points to the creek and social trails. Severe erosion in places from bank trampling and loss of riparian vegetation. Lots of trash and dead,animals,.campsites, patios, mawed~avuns.,,. ,.,,. Vertical rock retaining waifs alvng much of the south ~nk. Concrete rubble in some locations. Very limited native vegetat~ion ` _ _-_ ~ 39 Stream: Boulder Creek Reach: 6 (BC 28, 26, 22) Location: Folsom St. to 17th St. Opportunities: Transportation/Recreation: Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's pre-flood acquisition program. Habitat protection: • Enhance quality of native plant and b+rd habitat. Revegetate impacted areas with native plantings. Replace old cottonwoods with new plantings. • Control ascess~to strea~-and revegetate impa~#~d~st~~ea~t-banks. ~ • Manage weeds ~~d exotics:' ~ ° • Remove campsites~and~~r~sh. °~r~ ~"~ • Work with CU to protect art~! enhahce~~ipariart~area and t€~~ consolidate bridges. , ~~. ~ , ~~ . ~ ~ ~. . ., ~~- ~:~. ~. Water Quality: Work with CU to explore redesign of parking lot at CU housing complex and to relocate the recycling facility at Folsom St. - pave access road for ditch maintenance and trail access. Improve vegetative bank stability. 40 Stream: Boulder Creek Reach: 7 (BC 19, 17, 15, 12, 9, 6, 4, 3} Location: 17th St. to mouth of Boulder Canyon Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology): Tertiary (bank stability): Vegetative bank stability: Good to very good Poor to very good Very poor to good Fair to good Good, (BC15, 17, 19 fair) Good, (BC12 excellent) Fair to good Variable Other conditions: • Trail exists. • This reach of the creek has been devoted to recreational uses with resultant impacts to habitat, and possibly water quality. A kayak course is constructed in the western portion of the creek. The south bank in Eben Fine.PaFk is entirely artificial,,.with gu~r,r.ied,.rock and a concrete path at the water's edge. T.he north bank is:~elatively natural.; • Numerous access points and st~~iaf°frails along both stdss of the entire reach have caused severe impact to the banks and riparian are2s: The hanging of racing gates has caused erosion and slope stability proEilems: Picctic tables are':right ort the.creek banks, people and pet access is unlimited, causing severe trampling, vegetation loss, and erosion. • Several stormwater oufall pipes drain directly into the creek with no vegetative buffering. • Regeneration of native plants is minimal. Given current trends, there will be little canopy cover along the creek in the future unless restoration efforts are made. 41 Stream: Boulder Creek Reach: 7 (BC 19, 17, 15, 12, 9, 6, 4, 3) Location: 17th St. to mouth of Boulder Canyon Opportunities: Transportation/Recreation: Establish access points/steps for hanging racing gates to protect streambank from erosion. Formalize access points and trails to reduce amount of trampling and erosion from creek access. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Repair failing drop structures. Increase variability of drops when they get rebuilUmaintained. (Do not impede fish passage) • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire pr.c~p+~rties in~~tt~ehi~h hazard~zone ac~oc~ir~g ~Q~~,~ity's preflood acquisition program. - ~; °~ ~~~. ~:a. $7 5', n Habitat protection: ~ ~: ~ '` .. ~ ~~~, r. - .. _ ~ ~..~ .,~a ~ ~~~~:;t~ ..~;-__~ ._.._.__ • Enhance quality of native plant and bird habitat. Protect north side of creek along kayak course from disturbance and construction. • Replant native woody vegetation to enhance understory and overstory and widen riparian areas along entire reach. • Enhance buffer area near kayak course. • Begin a tree replacement project. • Work with homeowners to manage creek through native replantings and weed contro{, and limiting access to creek from private residences. Remove private patios and decks from the creek banks. • Close and replant undesignated access points and social trails. • Control weeds and exotics. Water Quality: • Evaluate feasibility of BMPs at Broadway in conjunction with the Broadway bridge reconstruction project. • Construct BMPs at 9th St. and other major oufalls where feasible. • Improve bank stability and channel conditions to enhance water quality. • Work with the high school to address maintenance issues and education about creek care. • Improve vegetative bank stability and soften structural treatments such as the bank along the kayak course. • Improve aquatic habitat at kayak course. • Revegetate south bank th~ough Eben Fine Park. • Manage access points throughout entire reach. • Improve water quality function of fishing pond. 42 Stream: Skunk Creek Reach: 1 (SC 19, 18) Location: Arapahoe Rd. to south end of wetlands complex Habitat conditions: Vegetation structure: Poor Native plant habitat: Poor to excelient Bird habitat: Very good to excellent Aquatic habitat: Fair Primary (streambed): Poor Secondary (channel morphology): Poor Tertiary (bank stability): Good Vegetative bank stability: Fair Other conditions: • Trail departs from Skunk Creek and connects to the Boulder Creek trail. • Most of the reach is located on University of Colorado property. • The channel is constrained between vertical rock walls along portions of the creek. • The creek is very dr~r.i~ the upper.portion of the reach due to uvater~diversion to the ponds. Opportunities: Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capaciry through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Preserve wetlands and buffer area between development and wetlands complex. • Continue water diversion through wetlands. • Explore securing base flow from upstream. _ • Remove constructed channel and revegetate stream banks and riparian area. Water Quality: Explore lowering the channel bottom to intercept some groundwater. Improve epifaunal substrate and riffle frequency. 43 Stream: Skunk Creek Reach: 2 (SC 18, 16) Location: South end of wetlands complex to Wellman Canal Habitat conditions: Vegetation structure: Poor to good Native plant habitat: Very good to excellent Bird habitat: Good to very good Aquatic habitat: Fair to good Primary {streambed): Fair Secondary (channel morphology): Poor to fair Tertiary (bank stability): Fair Vegetative bank stability: Poor to good Other conditions: . Constructed trail exists. Creek has little base flow upstream of the pond outlet. North of Wellman, the creek is a wetland mitigation site, then is underground in a pipe. Large grouted rock drop~ are above#kkey~ipe - these are erQde~d-.~nd,~rqdercut. ~~ ., Opportunities: `~ - °~~ ~ °`° ~" ~ Transportation/Recreation: • Construct bridges over Wellman Canal to connect to trail. • Work with CU to provide public restrooms and water fountains in the CU Research Park. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Protect and enhance the wetland mitigation site at Colorado Ave. Water Quality: • Improve riffle frequency in creek channel. • Remove structured rock in CU Research Park. 44 Stream: Skunk Creek Reach: 3 (SC 14, 12, 10, OS) Location: Wellman Canal to Baseline Rd. Habitat conditions: Vegetation structure: Good to very good Native plant habitat: Very poor to good Bird habitat: Very poor to good Aquatic habitat: Fair Primary (streambed): Fair Secondary (channel morphology): Fair Tertiary (bank stability): Fair Vegetative bank stability: Poor to good Other conditions: • Lots of erosion, debris, and rubble in the creek. • The pond under the building on 29th St. is highly eutrophic. • Downstream of 29th St., the diversion of water at the Canyon Creek Apts. has taken water from the channel. Mowing along the.creek in this area is s~uere. .. • Severely oversteep banks in park. Severe erosion frcim too much access. Trash and debris in creek. . • Day care facility on 30th is ~t risk o~;.losing_a buitding from erosion, • Beer bottles, concrete xuk~ble, and a`~ren~ta_ in the driveway of a house on 30th St. to drain antifreeze to the creek. • Debris and trash dams near Wellman are causing stagnant conditions. • Flood issues at 30th St. 45 Stream: Skunk Creek Reach: 3 (SC 14, 12, 10, 08) Location: Wellman Canal to Baseline Rd. Opportunities: Transportation/Recreation: • Construct a new bike and pedestrian bridge over Wellman Canal in conjunction with ftow separation and trail connection to Madison. • Construct trail connection from E. Aurora to Baseline Rd. with a connection to Arrowwood Park. • Construct trail underpass under 30th St. • Open end of the US 36 culvert and provide an additional underpass at the access ramp. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and seiective debris remo~al.,and vegetative thin ~ithixa~t~~~nveyance zones. • Acquire prapertie~~~~in the hi~ hazard -~one a~~ordir~g~~to ttt~ City's preflood acquisition program. • ,~ - ~__ _ ~ ~ ~;: ~ ~ Habitat protect~or~x~~~~" ~.'~~~.- ~ .. .~_ _~~~, _.~._ ~li .~__ • Restore riparian buffer and improve habitat quality. • Use homeowner education to manage weeds and control debris in the creek. • Install aeration devices in pond near 29th and Baseline or restore it as a wetland. • Work with apartment~owners to minimize mowing along creek banks. • Address flow separation at Wellman Canal. • Protect constructed wetlands. Water Quality: • Improve reach with poor streambed and channel morphology characteristics (SC08). • Use bioengineering approaches to improve vegetative bank stability where possible. • Regrade side slopes and stabilize banks behind Canyan Creek Apts and :n park. • Replace rubble bottoms with wetlands between 30th and Baseline. • Consider combining two channels behind apartments to concentrate limited base flows. • Provide BMPs for parking lots and outfalls throughout reach - especiaNy at the Canyon Creek Apts. complex and the City park site. 46 Stream: Skunk Creek Reach: 4 (SC 07, 06) Location: Baseline Rd. to west of Broadway Habitat conditions: Vegetation structure: Good to very good Native plant habitat: Very poor to poor Bird habitat: Poor Aquatic habitat: Fair Primary (streambed): Poor to fair Secondary (channel morphology): Poor to fair Tertiary (bank stability): Fair to good Vegetative bank stability: Good Other conditions: • Creek is underground below Baseline, then in gabions befinreen car wash and liquor store. • There are several large drops that are very structural. Channel is vegetated and thalweg has developed in places. • After the box undsr Moorhead, the.~abions are gone.aind the chan~nel and riparian area are better developed. However, cr~ek i~-.very confined between the apartment bldgs. and the road. 47 Stream: Skunk Creek Reac~: 4 (SC 07, 06) Location: Baseline Rd. to west of Broadway Opportunities: Transportation/Recreation: • Construct trail behind car wash and liquor store. • Construct trail underpasses under Broadway and from 27th Way tv Moorhead. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: ~- , , • Enhance cceek tti~ough tras#i remo~~~.weed +COntrol, and native plantings. ~ ,~~a.; ~.~ ~. . Water Quality: . ~ _ _.~{._u~. .~~ . . • Monitor stream changes resulting from new Broadway underpass. • Improve epifaunal substrate and riffle frequency. • W iden buffer zone where possible. • Provide BMP's along proposed trail adjacent to large paved areas. • Mitigation/restoration project to include renovating gabions and maintaining vegetative bank stability. 48 Stream: Skunk Creek Reach: 5 (SC 04, 03, 02, 01) Location: West of Broadway to city limits Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology): Tectiary (bank stability): Poor to very good Very poor to excellent Poor to excellent (near city limits) Fair Fair Good to excellent Mostly excellent, some poor Other conditions: • Creek is seasonally dry. • Upstream of Hollyberry the creek is left wild, although there is some trash. Thick poison ivy probably keeps most people out. • Creek is culverted and fenced under Hollyberry. Lots of trash, concrete rubble, metal, fort, construction mater.ials. -.~.- • Creek is getting some wafer frOm Kohler Reservoir le2k. Human impacts in this reach are relatively low, except for the footpath crossings and the concrete dam and bridge/spillway. • There are many concrete pads an~ concrete benches, • In Green Mountain Cemetary. t~owing oc~urs up to c[eek bank and rock walls have been constructed in some places. Some erosion and headcutting are occuring downstream of the cemetary. 49 stream: Skunk Creek Reach: 5 (SC 04, 03, 02, 01 } Location: West of Broadway to city limits Opportunities: Transportation/Recreation: Explore potential to construct bridge instead of cuivert at Hollyberry. Flood management: • Remove fences above cuivert at Hollyberry. • Remove social trail bridges along creek. • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: ~ -_ ~ <~.~ • Protect and~ enhart~e f~h quality h~bif:~t. ~~~~~~~ ` ~= • Remove fencing, footl~dg~, retafi~ng'~vatls,~~ights and c~her structures within the r ~ creek. ~ ~a .~,~,_ - ~.~.~r ~~~~„ ~F~ _ _ - • Use homeowner education to help control weeds and debris. • Concentrate creek crossings at one location. Water Quality: • Explore possibility of moving cemetary plots away from creek. • Remove concrete flume and vegetate the residential lot downstream of cemetary. • Improve epifaunal substrate and riffle frequency. • Provide BMPs along proposed trail to treat runoff from NOAA parking lots. • Explore securing a base flow from Kohler Reservoir. • Monitor stream response to new underpass under Broadway. 50 Stream: Bear Creek Reach: 1 (BRC 32, 30) Location: Boulder Creek to Foothills Pkwy. Habitat conditions: Vegetation structure: Good Native plant habitat: Poor Bird habitat: Very poor to good Aquatic habitat: Fair Primary (streambed): Fair Secondary (channel morphology): Fair Tertiary (bank stability): Fair Vegetative bank stability: Fair to poor Other conditions: • Trail exists • The Open Space prope~ty is wooded and relatively wild. Trash, debris, erosion, and recent flooding are evident. Opportunities: °<° Flood management:-_ ; ~~ __ ~~ .,~~ . ~r::-~._ . _ • Evaluate possibility of improving berm or constructing a floodwall along Harrison Rd. to prevent spills to neighborhood. • Protect existing high hazard flood zone on property north of Arapahoe Rd. • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Improve vegetation structure and native plant habitat in Open Space properties. • Weed control and trash removal to improve habitat. • Protect and enhance wet meadow wetland habitat on property north of Arapahoe Rd. • Monitor for potential Ute ladies' tresses orchid habitat. Water Quality: • Improve bank stability with vegetation enhancement. • Provide BMPs at outfalls along Foothills Pkwy. • Preserve existing water quality functions of wetland south of Arapahoe Rd. 51 stream: Bear C~eek Reach: 2 (BRC 29, 27, 25, 24) Location: Foothills Pkwy. to Baseline Rd. Habitat conditions: Vegetation structure: Good Native plant habitat: Very poor to good Bird habitat: Very poor to poor Aquatic habitat: Fair Primary (streambed): Fair Secondary (channel morphology): Fair Te~tiary (bank stability): Fair, some good Vegetative bank stability: Fair to poor Other conditions: • Trail exists. • Creek has some flow. There is evidence of recent high water. • The path is wider than the creek in some places and is constraining the stream corridor. 100 year flood capacitymr.,~~..,~,u _ a.g,~ . ,~ ,_ • Drop structures in p~aces~`~re I~ky ~nd undereut. ~~ °~ ~~ • Upstream of Wellr~i~n, th~ creek is-relatively wild, althEtkugtj the large trapezoidal shape is still predominant. - • Potential Preble's t~teac~vv jurnping r~ous+e habi~~. ,~u~.., ,.~. Opportunities: Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Reduce mowing in buffer area through homeowner education to provide wider riparian width. Install fencing to discourage mowing. • Replant native plants and control exotics through homeowner education. • Survey for Preble's meadow jumping mouse. Protect mouse habitat by encouraging native plant regeneration. • Increase plant diversity downstream of Wellman. Water Quality: Improve vegetative bank stability in poor reaches. Provide water quality BMPs at outfalls. 52 stream: Bear Creek Reach: 3 (BRC 22, 20, 18) Location: Baseline Rd. to Hwy. 36 Habitat conditions: Vegetation structure: Very good Native plant habitat: Poor to good Bird habitat: Very poor to good Aquatic habitat: Fair Primary (streambed): Fair Secondary (channel morphology): Fair Tertiary (bank stabi{ity}: Poor to good Vegetative bank stability: Fair to poor Other conditions: • Trail exists. • South side of the creek is relatively unimpacted. IYs anticipated that the stream will suffer much more impact with the increased density of use planned for this area. • 100 year flood capac~t~r,through,CU_property ~o be de~~loped. _ • Mowing is too close°to the stre8m b~nk on the north side of the creek and near the church. Downstream of chtarch driyeway, th~acreek~s tiery nat~awly confin€d. • Lots of weeds throt~ghout tt~e r~acktti, `~~ ~ . ~ . .~ r_ ~ Opportunities: Transportation/Recreation: Improve connections to Greenways system as part of William's Village Master Plan. Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection/VUater quality: • Improve vegetation structure and bank stability in association with CU development. • Work with CU to protect wide buffer area and develop structural access points along the stream banks. (Opportunity for passive flood management in conjunction with William's Village Master Plan) • Work with the church and CU to reduce mowing along the stream banks and restore riparian areas. • Provide BMPs at outfalls and near Baseline Rd. 54 Stream: Bear Creek i Reach: 4 (BRC 15, 14, 12) Location: Hwy. 36 to Broadway underpass Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology) Tertiary (bank stability): Vegetative bank stability: Good Poor to good Very poor to poor Fair Fair to good Mostly good, some fair Fair to good Poor to good {improvements made after study was completed) Other conditions: • Trail exists. • Beginning of reach (upstream) is constructed with large stacked boulders (plunge poool) with no vertical diversi~ty.i~#he channea~structure. ; Portions of the reach were-not ~deqt~ately re~egetated after the rec • ent channel project. Lots of washed out rock walls and cortstru~ted drops. :~rop ~~ructures are deteriorating in the upstream reaches: ° ' • Downstream portion<of tl~ie rea~i, tli~r.eek is ir~;~~flut~e built frarr~.vertical grouted rock walls. Trees have concrete poured on the base of the trunks and are dying. There is not much room for the creek and the path through the residential neighborhood. The creek has been severely channelized and confined between vertical rock walls with little vegetation. • Relatively little cover in portions of the reach. Vegetation is predominately exotic with almost no native cover. Extent of the riparian area is limited by overmowing. 55 Stream: Bear Creek Reach: 4 (BRC 15, 14, 12) Location: Hwy. 36 to Broadway underpass Opportunities: Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Evaluate need for drop structure replacement. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Improve habitat quality through vegetation enhancement • Increase instream habitat d'+versity by leaving stable blown-out drop structures. ~ Manage weeds. • Reduce mowi~g throu k~~park and school grQUnds.to pc~uide-wider riparian area. • Explore fertcing t~ tlis~ura~e tram~iing and excessive ~wing. • Provide hameowrter edu~atit~n to irtipr~ve cre~k care. ~x' • Remove cancrete~~~#rom ~rot~~d tre~:`ti'Ut~ics to ~revent los~~of trees. a -~-~_ ~~~ _ , ~~-. w ~~_ Water quality: • Revegetate unstable banks. • Protect and maintain pool/riffle sequence in channel. • Provide BMP near Moorhead. 56 stream: Bear Creek Reach: 5 {BRC 11, 9, 7, 6) Location: Broadway underpass to Lehigh St. Habitat conditions: Vegetation structure: Poor Native plant habitat: Poor Bird habitat: Poor to good Aquatic habitat: Fair Water quality: Fair Primary (streambed): Fair Secondary (channel morphology): Fair Tertiary (bank stability): Fair, some good Vegetative bank stability: Poor, some good Other conditions: • No trail exists. • Creek passes between lanes of Table Mesa Dr. • Many grouted rock-drap structure have been constructed, bu~,~tl.ie,.~routed part is buried and vegetated. ~~~ ~ ~ ~~ • At the bridges, the Creek gets y~ry.~vide an~ deposits sand. • Lots of trash. ~~ • Weedy plants dominate iF~e ro8tlside:por~on of,t~e fl~dplain. F~tics and garden escapees are also present. 57 Stream: Bear Creek Reach: 5 (BRC 11, 9, 7, 6) Location: Broadway underpass to Lehigh St. Opportunities: TransportationJRecreation: • Construct a bike trail along Table Mesa Dr. • Provide an underpass just west of Broadway to cross Table Mesa Dr. Flood management: • Mitigate flood hazard and drainage issues according to CDUMP. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Enhance vV~tland~with riative plantings. P{ant~ative free:~nd shrub plantings to improve cover val~. ,~' ~~ ` '' • Soften dro~s by btityirig ro~k structures and reuegetating.. • Eliminate- ~rn~rrr~j`fro~~a4on~g#k~eTbanks~~ ~°~-- -~~~>~ Water quality: Improve water quality by controlling runoff from Table Mesa Dr. Construct BMPs downstream of road crossing between lanes of Table Mesa Dr and at outFalls. Revegetate unstable banks. 58 Stream: Bear Creek Reach: 6 (BRC 03, 01) Location: Lehigh St. to city limits Habitat conditions: Vegetation structure: Good to very good Native plant habitat: Very good to exceilent Bird habitat: Good Aquatic habitat: Fair to good Primary (streambed): Good Secondary (channel morphology): Fair to good Tertiary (bank stability): Good Vegetative bank stability: Good Other conditions: • Reach is situated in an unconstrained flood plain at the base of the foothills with a relatively wide riparian area. • Creek is relatively wild. Vegetation is dominated by native species in the canpoy and exotics in the herbaceous undecstory. . .:,. • Some trash, concre#e rubble, c~ble N wire across the stream. T • Lots of mowing within riparian area - especially along #he :church and school. • Some erosion, ve~ti~al bat~ics, ~+ridence of.:recent high water. . Many social trails. - ~ ~~ ~~~ `~~ . _. ~. , . ... . _-~. Opportunities: Flood management: Mitigate flood hazard and drainage issues according to CDUMP. Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection/Vlfater quality: • Protect and enhance this section of the creek for habitat quality. • Remove riprap and concrete rubble and restabilize with vegetation. • Use homeowner education to reduce extent of mowing in the buffer areas, control weeds (Canada thistle and Bouncing Bet) and to enhance native vegetation. • Improve base flow stability and aquatic habitat. 59 stream: South Boulder Creek Reach: 1 (SBC 4.1, 3.1} Location: KOA Lake Habitat conditions: Vegetation structure: Native piant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology) Tertiary (bank stability): Good Very good to excelient Very good Fair Fair Poor Excellent Other conditions: • Trail exists. Opportunities: Transportation/Recreation: a'~*~ ~' ~` ~ . • Provide cannection frott~ Sr~uth Bq~lc~r''~ree[c trail to Valmont City Park. • Evaluate ~rtentiat for trail cc~e~ion to=Cunt~~rrel along 63rd St. Flood management: • Mitigate flood hazard and drainage issues according to the South Boulder Creek Master Plan. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat Protection: • Preserve and enhance riparian, wetland, and aquatic habitat of Boulder Creek. • Avoid disturbance to Spiranthes diluvialis habitat along Boulder Creek at 61st St. Water quality: • Treat runoff from adjacent parking lots through BMPs. 60 Stream: South Boulder Creek Reach: 2 (SBC 19, 2.1, 1.1) Location: South end of KOA Lake to Arapahoe Rd. Habitat conditions: Vegetation structure: Native plant habitat: Bird habitat: Aquatic habitat: Primary (streambed): Secondary (channel morphology): Tertiary (bank stability): 61 Poor to very good Good Good to very good Fair Poor to good (predominantly poor) Poor Excellent Stream: South Boulder Creek Reach: 2 (SBC 19, 2.1, 1.1) Location: South end of KOA Lake to Arapahoe Rd. Opportunities: Transportation/Recreation: Formalize bike connections to the Flatirons Industrial Park. Flood management: • Mitigate flood hazard and drainage issues according to the South Boulder Creek Master Plan. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. • Manage sediment under the RR crossing. Habitat protection: ~ • Maintain high quality o~',t~ird f~abitat:by preserving and enhancing vegetation structure. • Enhance and maintain t~ipar~an area anci~buffer area. • Continue aggressive weed r`iaa~+a+gemerit program to contjol purple loosestrife. Water Quality: • Develop BMPs in conjunction with any new development at Arapahoe. • Close off 4WD roads at the top of the bank. • Negotiate for more flow downstream of ditch diversion. • Increase the physical diversity of sections of the channel by creating deeper sections, meanders, etc. • Clean up abandoned cars near Arapahoe and the Leggitt Ditch. 62 stream: South Boulder Creek Reach: 3 (SBC 18-09) Location: Arapahoe Rd. to Baseline Rd. Habitat conditions: Vegetation structure: Good Native plant habitat: Very poor to very good Bird habitat: Poor to very good Aquatic habitat: Excellent Primary (streambed): Excellent to good Secondary (channel morphology): Good Tertiary (bank stability): Good Other conditions: • Off-street trail exists for some portion of the reach, and an on-road connection for the remainder. Opportunities: Transportation/Recreation: • Evaluate,pt~#en~ial'for,an off-Stree~,trail v'~ich:~yoids imp~cts to the riparian area. Flood management: • Mitigate flood hazard and drainage issues according to the South Boulder Creek Master Plan. • Maintain flood conveyance capacity through a combination of sediment removal and selective debris removal and vegetative thinning within the conveyance zones. • Acquire properties in the high hazard zone according to the City's preflood acquisition program. Habitat protection: • Improve native plant habitat through homeowner education. • Continue to obtain conservation easements through annexations and other opportunities. Water Quality: • Protect streambed quality through conservation easements and homeowner education. b3 Stream: South Boulder Creek Reach: 4 (SBC 08-00) Location: South of Baseline Rd. Habitat conditions: Vegetation structure: Good to very good Native plant habitat: Very good to excellent Bird habitat: Very good to excellent Aquatic habitat: Water quality: Primary (streambed): Secondary (channel morphology): Tertiary (bank stability): Other conditions: Trail exists. A portion of the trail is soft-surface. Opportunities: , ~,~ ~ . ~~ ~° Transportation/Recreatian ~; .,~,~~: • Maintain trsil>.a~rdin~;to th~r;.S~th Boi~Ide~ +~[eek Master Plan. Flood management: Mitigate flood hazard and drainage issues according to the South Boulder Creek Master Plan. Habitat protection: Follow management guidelines as specified in the South Boulder Creek Area Management Plan. Water Quality: • Protect and enhance exceflent aquatic habitat value. 64