Denali Borough, AK Roof Snow Load - Case Study Area
Why doesn't Denali Borough have a snow load number?
ASCE 7's own snow load map has no single figure for Denali Borough: 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 02068, population 1,621. 386 US counties get this same case-study treatment; Denali Borough is one of them.
Denali Borough at a glance
- Population1,621
- Annual snowfall, NOAA normal76.7 in.
- FIPS02068
Denali Borough's snowfall, most winters
76.7 in. a year: that's Denali Borough's NOAA 1991-2020 snowfall normal, measured at MCKINLEY PARK, AK US (32.5 mi away). Worth noting: the nearest station reporting snowfall normals sits 32.5 mi from Denali Borough's center, so treat this as a regional figure rather than an exact one. See the density guide.
Before you rely on Denali Borough's number
Treat the Denali Borough 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.