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MT · County

Silver Bow County, MT.

Population: ~35,000. Consolidated city-county (Butte-Silver Bow). Historic High elevation (~5,500 ft).

Coverage in progress WUI
Adopted edition

Coverage in progress

Local amendments override state floor.

Design wind speed

90 mph

ASCE 7 Risk Cat II, 3-second gust at 33 ft. Drives fastener spacing, hold-downs, and opening protection.

Climate zone (IECC)

6B

Drives R-value, fenestration U-factor, and air-leakage envelope rules.

Special zones
  • HVHZ
  • WBDR
  • WUI
  • FEMA SFHA possible
Permit office

Silver Bow County County Building Department

Local conditions
  • County seat: Butte

Common amendments + overlays

What's specific to this county.

  • §01 WUI overlay — fire-resistant exterior + defensible space requirements.
  • §02 County has local amendments to the state floor — consult the building department.

Working in Silver Bow County?

Pull an address-level code packet for any property in Silver Bow County. SkyCanvass resolves the parcel, looks up the adopted edition + the Silver Bow County-specific amendments listed above, and emits a cited packet ready for permit submittal.

See the Montana state overview for the broader context, or browse the state directory.

Pull a Silver Bow County code packet.

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