Columbia County, GA Roof Snow Load - 5 psf
What ASCE 7 says about snow load in Columbia County
That's Columbia County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. Flat and low-pitch roofs in Columbia County are actually governed by ASCE 7's §7.3.4 minimum of 5 psf, not the 3.5 psf the ground-load formula alone would produce.
Converted to something you can actually eyeball on a roof: about 11 in. of fresh powder, 4 in. once it settles and packs down, or just 1 in. if it's turned to ice. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Columbia County in numbers
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,115 of 2,758
- Georgia rank#32 of 159
- Population167,472
- Annual snowfall, NOAA normal0.3 in.
- FIPS13073
Where Columbia County's figure sits nationally
Out of 2,758 rated US counties, Columbia County sits at #2,115, the top 77% nationally - #32 of 159 within Georgia. Georgia counties average 3.6 psf; Columbia County runs 1.4 psf higher than that.
Near 33.5521°N 82.2496°W, FIPS 13073: Columbia County counts 167,472 residents and a 5 psf map value, which the code's own factors turn into 5 psf.
How much it actually snows in Columbia County
Most winters bring Columbia County roughly 0.3 in. of snow - NOAA's normal at LINCOLNTON, GA US, 20.1 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Columbia 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 Columbia County's county-wide figure. See the methodology guide.