Anderson County, TN Roof Snow Load - 10 psf
What ASCE 7 says about snow load in Anderson County
That's Anderson County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. §7.3.4's low-slope minimum of 10 psf is what actually governs on a flat or low-pitch roof here - higher than the 7 psf the base ground-load formula gives.
Converted to something you can actually eyeball on a roof: about 22 in. of fresh powder, 8 in. once it settles and packs down, or just 2 in. if it's turned to ice. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Anderson County at a glance
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,730 of 2,758
- Tennessee rank#21 of 95
- Population81,449
- Annual snowfall, NOAA normal3.1 in.
- FIPS47001
Where Anderson County's figure sits nationally
Out of 2,758 rated US counties, Anderson County sits at #1,730, the top 63% nationally - #21 of 95 within Tennessee. That's 0.3 psf below Tennessee's own county-average design load of 10.3 psf.
Near 36.1167°N 84.1954°W, FIPS 47001: Anderson County counts 81,449 residents and a 10 psf map value, which the code's own factors turn into 10 psf.
How much it actually snows in Anderson County
Most winters bring Anderson County roughly 3.1 in. of snow - NOAA's normal at NORRIS, TN US, 10.1 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Anderson 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 Anderson County's county-wide figure. See the methodology guide.