How much of Butte-Silver Bow is regulated by FIRMS?
FIRMs have been issued for the entire jurisdictional area of the City and County of Butte-Silver Bow, other than the Town of Walkerville. Consequently, FEMA has issued FIRMs for the Big Hole River and all of the perennial streams, such as, Silver Bow Creek, Blacktail Creek, Basin Creek, Grove Gulch Creek, Little Basin Creek, Columbia Gulch and Brown’s Gulch. In addition, several intermittent streams that flow off of the East Ridge are also mapped.

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1. What is a floodplain?
2. What are official floodplain maps called?
3. What is the purpose of floodplain mapping?
4. How are floodplains mapped?
5. How are floodplains (SFHA) illustrated on FIRMS?
6. How much of Butte-Silver Bow is regulated by FIRMS?
7. Did the recently adopted FIRMs change the SHFA boundaries if the 1980s FIRMs?
8. Where can I review a paper copy of a FIRM?
9. How are floodplains regulated in Butte-Silver Bow?
10. What kind of development is permitted in with the SHFA?
11. How do I apply for a floodplain development permit?