Bollinger County, MO Roof Snow Load - 15 psf
What ASCE 7 says about snow load in Bollinger County
That's Bollinger County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. ASCE 7's low-slope-roof minimum (§7.3.4) raises the governing figure to 15 psf - higher than the 10.5 psf the ground-load formula alone would give, and the code says use the larger one.
Converted to something you can actually eyeball on a roof: about 33 in. of fresh powder, 12 in. once it settles and packs down, or just 3 in. if it's turned to ice. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.
Bollinger County in numbers
- Design roof snow load15 psf
- Ground snow load, ASCE 7 map15 psf
- National rank#1,548 of 2,758
- Missouri rank#107 of 115
- Population10,610
- Annual snowfall, NOAA normal9.3 in.
- FIPS29017
Where Bollinger County's figure sits nationally
Out of 2,758 rated US counties, Bollinger County sits at #1,548, the top 56% nationally - #107 of 115 within Missouri. Missouri counties average 18.6 psf; Bollinger County runs 3.6 psf lower than that.
Near 37.3184°N 90.0246°W, FIPS 29017: Bollinger County counts 10,610 residents and a 15 psf map value, which the code's own factors turn into 15 psf.
How much it actually snows in Bollinger County
Most winters bring Bollinger County roughly 9.3 in. of snow - NOAA's normal at FREDERICKTOWN, MO US, 23.5 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Bollinger 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 Bollinger County's county-wide figure. See the methodology guide.