Kusilvak Census Area, AK Roof Snow Load - Case Study Area
Why doesn't Kusilvak Census Area have a snow load number?
ASCE 7's own snow load map has no single figure for Kusilvak Census Area: the terrain is complex enough that the code (§7.2) requires an elevation-specific study rather than a county-wide value. That is the map being accurate, not a data gap.
FIPS 02158, population 7,946. 386 US counties get this same case-study treatment; Kusilvak Census Area is one of them.
Kusilvak Census Area in numbers
- Population7,946
- Annual snowfall, NOAA normal64 in.
- FIPS02158
Kusilvak Census Area's snowfall, most winters
64 in. a year: that's Kusilvak Census Area's NOAA 1991-2020 snowfall normal, measured at BETHEL AP, AK US (112.8 mi away). 112.8 mi is a real gap between Kusilvak Census Area and its nearest reporting station, so local snowfall can diverge from this figure, especially near elevation changes. See the density guide.
Before you rely on Kusilvak Census Area's number
Treat the Kusilvak Census Area figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. See the methodology guide.