SnowLoadCheck

De Baca County, NM Roof Snow Load - 5 psf

What ASCE 7 says about snow load in De Baca County

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5 psf

That's De Baca County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. The physics-based figure alone would be 3.5 psf, but ASCE 7's own low-slope minimum (§7.3.4) sets a floor of 5 psf for flat and low-pitch roofs here, which is the number that actually governs.

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. This is a modest add-on to standard roof loading - ordinary residential construction carries it without extra bracing.

De Baca County in numbers

Where De Baca County's figure sits nationally

Out of 2,758 rated US counties, De Baca County sits at #2,458, the top 89% nationally - #23 of 27 within New Mexico. That's 1.9 psf below New Mexico's own county-average design load of 6.9 psf.

Near 34.3593°N 104.3687°W, FIPS 35011: De Baca County counts 1,657 residents and a 5 psf map value, which the code's own factors turn into 5 psf.

How much it actually snows in De Baca County

Most winters bring De Baca County roughly 11.8 in. of snow - NOAA's normal at FT SUMNER 5 S, NM US, 7.2 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

De Baca 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 De Baca County's county-wide figure. (How this figure is calculated.)