Coos County, OR Roof Snow Load - Case Study Area
Coos County, OR: no map figure, on purpose
ASCE 7's own snow load map has no single figure for Coos County: 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 41011, population 64,326. 386 US counties get this same case-study treatment; Coos County is one of them.
Coos County in numbers
- Population64,326
- Annual snowfall, NOAA normal0.2 in.
- FIPS41011
Coos County's snowfall, most winters
0.2 in. a year: that's Coos County's NOAA 1991-2020 snowfall normal, measured at COQUILLE CITY, OR US (5.5 mi away). See the density guide.
Before you rely on Coos County's number
Treat the Coos County 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.