4C - 3005 28th Street - Floodplain Development Permit - LUR2011-00025
MEMORANDUM
TO: Planning Board
FROM: Katie Knapp, Civil Engineer, Floodplain and Wetlands Permitting
DATE: April 21, 2011
SUBJECT: Call Up Item: 3005 28th St. (Old Flowerama site)
Floodplain Development Permit (LUR2011-00025)
This decision may be called up before Planning Board on or before
May S, 2011
A Floodplain Development Permit was approved by Planning and Development staff on
April 21, 2011. The project involves installation of monument sign in the flood
conveyance zone.
The proposed project includes installing a new monument sign in the regulatory flood
conveyance zone for Elmer's Two-Mile Canyon Creek. Although the project area is
currently mapped as flood conveyance zone, the City of Boulder recently completed a
flood improvement project along Elmer's Two-Mile Canyon Creek. Hydraulic analysis
and modeling shows that these improvements have eliminated the 100-year floodplain
and the flood conveyance zone on this property. These findings are currently awaiting
final review and approval by the Urban Drainage and Flood Control District and FEMA.
The city floodplain mapping will officially change to show this location out of the 100-
year floodplain after approval by FEMA. Construction of the proposed sign will not
adversely impact the floodplain or cause a rise in the floodwater elevation during the 100-
year flood event. A copy of the floodplain development permit is attached.
This floodplain development permit was approved by Planning and Development
Services staff on April 21, 2011, and the decision may be called up before Planning
Board on or before May 5, 2011. There is one Planning Board meeting within the
required 14-day call-up period on May 5, 2011. Questions regarding this floodplain
development permit should be directed to Katie Knapp in Planning and Development
Services at 303-441-3273 or knappk(a~,bouldercolorado. o
Attachments:
A. Floodplain Development Permit
36 Agenda Item 4C Page 1 of 2
Attachment A
CITY OF BOULDER
Planning and Development Services
1739 Broadway, Third Floor • P.O. Box 791, Boulder, CO 80306-0791
phone 303-441-1880 • fax 303-441-4241 • web boulderplandevelop.net
Land Use Review Floodplain Development Permit
Date Issued: April 21, 2011 Expiration Date: April 21, 2014
(Pursuant to Subsection 9-3-6(e), B.R.C. 1981)
Permit Number: LUR2011-00025
Contact Information
JASON FELL
1739 BROADWAY 2ND FLOOR
BOULDER, CO 80306
303 441 3266
Project Information
Location: 3005 28TH ST
Legal Description: TRACT 598 LESS A, B, C & 704SF SPLIT TO ROW IN SW1 A 20-1 N-7 0
TOTAL 12,868 SF PROPERTY ADD RESS: 003005 28TH ST BOULDER 8
0301
Description of Work: FLOODPLAIN DEVELOPMENT PERMIT - For installation of relocated sign in
conveyance zone at former "Flowerama" (No analysis).
Type of Floodplain Permit: Floodplain Review W/O Analysis
Creek Name: Elmer's Two Mile
Flood Protection Elevation: Not applicable
Conditions of Approval
The proposed project/activity is approved on the basis that it satisfies applicable requirements of Chapter
9-3-3, "Floodplain Regulations," Boulder Revised Code 1981. Other floodplain requirements as set forth in
Chapter 9-3-3 which are not specifically outlined in the conditions of approval below remain applicable to this
project/activity.
Inspections
To schedule an inspection, call 303-441-3280 and refer to your permit number (LUR2011-00025).
37 Agenda Item 4C Page 2 of 2