Floodplain Building Required Information

Elevation Certificate Form

An elevation certificate is required for all new structures in a flood hazard area and is usually required to obtain flood insurance. A registered professional surveyor, engineer, or architect must complete an Elevation Certificate. Blank Elevation Certificate (PDF)

Elevation Datum Conversion Information

The Elevation Datum Conversion (PDF) provides information that can be used to convert elevations given in the National Geodetic Vertical Datum of 1929 (NGVD 29) to the North American Vertical Datum of 1988 (NAVD 88). Floodwater elevations shown on the Letters of Map Revisions and Floodway Boundary and Floodway Maps are NGVD 29. Floodwater elevations on the DFIRMs are NAVD 88.

Floodplain Ordinance

City Ordinance No. 2001-06, Floodplain Management Regulations (PDF), describes the restrictions, requirements, and procedures that must be met for any development within a flood hazard area.

Floodproofing Certificate Form

A floodproofing certificate is required when a non-residential structure that is located in a flood hazard area has been floodproofed in lieu of being elevated. A registered professional engineer or architect must complete the Floodproofing Certificate Form (PDF).

Substantial Improvements Information Sheet

The Substantial Improvements Information Sheet (PDF) describes limitations on making substantial improvements or substantial repairs to structures located within a flood hazard area that do not meet the requirements described in Ordinance 2001-06.

Technical Bulletins
The following Technical Bulletins provide detailed requirements for certain aspects and types of building construction in a flood hazard area.

• Foundation Openings (PDF)
• Flood Resistant Materials (PDF)
• Utility Protection (PDF)
• Crawl Space Construction (PDF)
• Manufactured Homes (PDF)
• Historic Structures (PDF)
• Elevated Residential Structures (PDF)
• Above the Flood: Elevating Your Floodprone House (PDF)