4 - Call Up: Boulder Creek Trail Bridge Replacement Floodplain Development Permit (LUR2008-00104) MEMORANDUM
TO: Planning Board
FROM: Katie Knapp, Civil Engineer, Floodplain and Wetlands Permitting
DA'I'S: December 18, 2008
SUB.11?;CT: Call Up Item: Boulder Creek Trail Bridge Replacement
Floodplain Development Permit (LUR2008-00104)
This decision maybe called up before Planning Board on or before
January 8, 2009
A Floodplain Development Permit was approved by Planning and Development staff on
December 18, 2008. The project involves replacement of a footbridge on the Boulder
Creek Trail within the conveyance flood zone of Boulder Creek.
The proposed project involves removing a decaying, timber footbridge and replacing it
with two 18-inch diameter concrete culverts. The existing bridge is located to the north
of Boulder Creek between 19`h St. and 24`h St. The bridge crosses a drainage ditch which
runs perpendicular to and drains into Boulder Creek. The existing bridge and handrails
will be removed. The new culvcri crossing will not require handrails because it will have
less than a 30-inch drop-off. Shoulders that are 3-feet wide will also be constructed on
each side of the trail over the culvert crossing. The applicant has demonstrated that the
project will not adversely impact the floodplain or cause a rise in the floodwater elevation
during the 100-year flood event. A simple wetland permit (I.UR2008-00108) was also
approved for this project. Simple wetland permits are not subject to Plaruling Board Gall-
up.
"Phis floodplain development pern~it was approved by Planning and Development
Services staff on December 18, 2008, and the decision may be called up before Planning
Board on or before January 8, 2009. Due to the holidays, there were no Planning Board
meetings within the required 14-day call-up period, so the call-up period was extended
until the date of the next Planning Board meeting on January 8, 2009. Questions
regarding this floodplain development permit should be directed to Katie Knapp in
Planning and Development Services at 303-441-3273 or knappk(c~bouldercolorado.gov.
CITY OF BOULDER
•.1~;~~' Planning and Development Services
1739 Broadway, Third Floor P.O. Box 791, Boulder, CO 80306-0791
phone 303-441-1880 fax 303-441-3241 web boulderplandevelop.net
Land Use Review Floodplain Development Permit
Date Issued: December 18, 2008 Expiration Date: December 19, 2011
(Pursuant to Subsection 9-9-9(e), B.R.C. 1981)
Permit Number: LUR2008-00104
Contact Information
CITY OF BOULDER PUBLIC WORKS
5050 PEARL ST
BOULDER, CO 80301
303-413-7141
Project Information
Location: 0 GRANDVIEW
Legal Description: TR 416-1 LESS I-1 & I-2 36-1 N- 71 PER DEED 842045 04/16!87 BC R 000192
ARAPAHOE AV BOULDER
Description of Work: Flood permit for'Footbridge at Boulder Creek path southwest of CU practice field
to be replaced with a culvert.
Type of Floodplain Permit: Floodplain Review W/O Analysis
Creek Name: Boulder
Flood Protection Elevation:
Conditions of Approval
The proposed project/activity is approved on the basis that it satisfies applicable requirements of Chapter
9-9, "Floodplain Regulations," Boulder Revised Code 1981. Other floodplain requirements as set forth in
Chapter 9-9 which are not specifically outlined in the conditions of approval below remain applicable to this
project/activity.
The applicant shall obtain a site inspection and approval from the City of Boulder Floodplain and Wetlands
Coordinator upon completion of the projects.
Improvements shall be constructed in accordance with the plans submitted as part of the floodplain
development permit application.
The improvements shall be constructed to minimize and mitigate impacts to the existing wetlands in
conformance with the conditions of the City of Boulder Wetland Permit issued for this project.
Inspections
To schedule an inspection, call 303-441-3280 and refer to your permit number (LUR2008-00104}.
Final Floodplain Inspection
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