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TO: Mayor Richard C. Irvin
FROM: Jason Bauer, Assistant Director of Public Works/Assistant City Engineer
DATE: November 5, 2024
SUBJECT:
A resolution authorizing the Director of Purchasing to execute a change order to the existing contract with WBK Engineering in the amount of $45,950 for stormwater modeling associated with the RiverEdge Park Phase II Expansion.
PURPOSE:
To increase the contract amount to continue stormwater modeling and finalize submittals to FEMA for hydraulic analysis related to the Fox River floodplain limits adjacent to RiverEdge Park.
BACKGROUND:
The current flood maps covering RiverEdge Park indicate a different floodplain limit than what should be shown based on actual topography. FEMA has requested that the City submit hydraulic models demonstrating the limits and preparing a Letter of Map Revision (LOMR).
Due to their historic knowledge of the stormwater at the park, WBK was hired to complete the hydraulic analysis in the amount of $28,850. In addition to the anticipated scope requested, FEMA has requested the development of two separate hydraulic models and the evaluation of multiple flood scenarios, adding significant effort leading to the cost increase. Additionally, WBK did not have the budget allocated for the $8,000 application fee. These are just a few of the main tasks remaining to be completed to comply with FEMA requests and obtain the necessary map revisions to work on certain elements of the park, specifically at the beverage pavilion. By elevation, the structure is not within the floodplain/floodway, however the flood maps need to be revised to reflect this.
DISCUSSION:
Finalizing the Letter of Map Revision will benefit the city and public by allowing the construction of the park to commence, expanding the park to allow for a better user experience. Funds are available in account 355-4440-451.73-43 (A062).
IMPACT STATEMENT:
This will not have any adverse impacts to the General Public, or other depar...
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