Process Administration & Letters of Map Change

Utilize Technology to Improve LOMC Process

Incorporate LOMR mapping into NFHL as part of LOMR approval process. Regularly update NFHL.


Provide current model to LOMR preparers and have them incorporate changes to the model to keep the model up to date.


Making requests to find available models from the FEMA map library is tedious. A searchable digital archive of hydrologic and hydraulic models (WFS, REST end point, XML, etc…) is needed. Utilize the models on the MIP to supplement the FEMA library.


Submittal to the MIP requires extensive metadata that includes textual and spatial attributes. It is proposed that these metadata files be aggregated into a single repository. From this archive both text-based and spatial queries could be made using internet protocols to locate available models that include a specific area. Perhaps a metadata submittal requirement for a LOMC (at minimum LOMR) should additionally be required to facilitate a quicker discovery in the future.


While computationally slow, serving the National Flood Hazard Layer (NFHL) as a Web Feature Service WFS (and not just a Web Map Service WMS) would be highly useful for GIS and CADD operations by eliminating the need to download an entire DFIRM database for a small site. Additionally, allowing for the export of a Firmette that is automatically geo-rectified (GeoTIFF, world file pair, etc.) would be highly beneficial. It is also recommended that the NFHL WMS be served with the capability to modify the rendering colors and line weights with query string modifiers.



54 votes
56 up votes
2 down votes
Idea No. 1377