Specifications include, but are not limited to: Professional engineering and surveying services are required for a Conditional Letter of Map Revision (CLOMR) and Letter of Map Revision (LOMR) project that will produce new and updated flood hazard data and maps for Shelby County along Big Creek in the vicinity of the project site. All work will be done in compliance with FEMA prescribed methodology, guidance, best practices, and standards. The latest release of Hydrologic Engineering Center’s River Analysis System and Hydrologic Modeling System (HEC-RAS/HEC-HMS) will be used, along with new topographic data provided by Shelby County. Hydrologic and hydraulic models will also be provided to the selected consultant.