Owyhee County, ID Roof Snow Load - Case Study Area
Owyhee County, ID: no map figure, on purpose
Owyhee County sits in the mountain-west terrain where ASCE 7-22 §7.2 itself declines to give a contour figure - elevation changes too fast over short distances there for one number per county to mean anything. The code requires a site-specific study for a building here, not a look-up.
Owyhee County, FIPS 16073, is home to 12,748 people - one of 386 US counties ASCE 7 itself routes around a map figure for.
Owyhee County in numbers
- Population12,748
- Annual snowfall, NOAA normal47.3 in.
- FIPS16073
How much it actually snows in Owyhee County
Most winters bring Owyhee County roughly 47.3 in. of snow - NOAA's normal at MURPHY (DESERT) HOT SPRINGS, ID US, 56.8 mi off. 56.8 mi is a real gap between Owyhee County and its nearest reporting station, so local snowfall can diverge from this figure, especially near elevation changes. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Owyhee County's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.
Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Owyhee County's county-wide figure. (How this figure is calculated.)