Notification of Other Agencies.
Riverside Municipal Code § 16.18.060
in effect16.18.060 - Notification of Other Agencies.
A. Notification of other agencies is necessary so that upon confirmation of physical changes affecting flooding conditions, risk premium rates and floodplain management requirements are based on current data.
B. When undertaking or approving the alteration or relocation of a watercourse, the Floodplain Administrator or designee shall:
1. Notify adjacent communities and the California Department of Water Resources prior to alteration or relocation;
2. Submit evidence of such notification to the Federal Emergency Management Agency; and
3. Assure that the flood carrying capacity within the altered or relocated portion of said watercourse is maintained.
C. If physical alterations cause Base Flood Elevation changes:
1. Within six months of information becoming available or project completion, whichever comes first, the Floodplain Administrator shall submit or assure that the permit applicant submits technical or scientific data to FEMA for a Letter of Map Revision (LOMR).
2. All LOMR's for flood control projects are approved prior to the issuance of building permits. Building Permits must not be issued based on Conditional Letters of Map Revision (CLOMR's). Approved CLOMR's allow construction of the proposed flood control project and land preparation as specified in the "start of construction" definition.
D. Upon changes in corporate boundaries: Notify FEMA in writing whenever the corporate boundaries have been modified by annexation or other means and include a copy of a map of the community clearly delineating the new corporate limits.
(Ord. 6997 §§5, 6, 2008; Ord. 5640 §1, 1988; Ord. 5039 §9, 1982)
Source: City of Riverside, California, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ca/riverside/codes/code_of_ordinances?nodeId=PTIICOOR_TIT16BUCO_CH16.18FLHAARIMNAFLINPR_16.18.060NOOTAGFetched: 11/1/2026