FLOOD10340

• County: Weld
• Community: Pierce
• Stream Name: Spring Creek
• Basin: South Platte
• Title: Pierce - Spring Creek Correspondence
• Floodplain - Doc Type: Correspondence

Meeting Summary
Tom Browning presented the overall purpose for the meeting and generally discussed the
floodplain mapping process. The CWCB requested funding from FEMA through the Cooperating
Technical Partner (CTP) program. Pierce was identified as one of the top priorities in the state
for floodplain mapping revisions. Using the FEMA grant, the CWCB has contracted with the
U.S. Army Corps of Engineers (Omaha) to complete the engineering study and floodplain
delineations for submittal to FEMA. The goal is to provide a completely revised floodplain map
for Pierce. The following bullet items summarize the key issues discussed during the meeting:
· The Corps plans to complete its portion of the study by spring of 2002.
· It will likely take an additional year before FEMA actually publishes a revised map and
report. (Ample time is needed for FEMA to fully review and approve the study, and
additional time is required for public review/comment, community acceptance, printing, and
distribution).
· Tom Browning and Tom Gorman met with John Liou on 7-31-01 to discuss the Spring Creek
floodplain prior to the 8-1-01 meeting. John verbally consented to eliminating the split
floodway through town. The east floodway would remain, and the west floodway would not
be defined except as an "A" zone on the FEMA map.
· The Town agreed that the west floodway was indeed the most problematic part of the FIRM.
Elimination of the west floodway would generally make officials and landowners quite
happy.
· The CWCB has endorsed the use of the 1990 NRCS flood hydrology values for the study.
FEMA will make a formal determination regarding the hydrology once it receives a cover
letter and backup data from the CWCB.
· The NRCS hydrology would reduce the 100-year peak flow in Pierce from 8,000 cfs to
around 5,600 cfs. This reduction in flow could be beneficial in reducing the mapped flood
hazard area in Pierce.
· Meeting attendees felt that it would be beneficial to extend the detailed study limits beyond
the corporate limits of the Town. Portions of unincorporated Weld County are being
developed in areas adjacent to Pierce. This effort can only happen if sufficient funding is
available to complete the top priority study reach.

Flood Protection. Water Project Planning and Financing. Stream and Lake Protection
Water Supply Protection. Conservation Planning

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