Professional Engineering Services to Prepare and Complete a Citywide Flood Hazard Risk Assessment and Physical Map Revision Application

SCOPE OF WORK The City will need an accurate and updated the Flood Insurance Study (FIS) and all Flood Insurance Rate Maps (FIRMs) affecting the City of Simi Valley. The current FIS and FIRMs are based on outdated data and methodologies which has resulted in excessively conservative mapping of the SFHA. The City has recently completed a detailed H & H analysis Tapo Canyon Creek (a major tributary to the Arroyo Simi which composes 22% of the entire Simi Valley watershed). This thoroughly calibrated and validated analysis supports a significant reduction in size of the floodplain. The City has submitted a twopanel Letter of Map Revision (LOMR) application based on this study. The hydrology and hydraulic modeling has received approval by FEMA and the draft LOMR should be issued by May 1, 2024.