SnowLoadCheck

Tulsa County, OK Roof Snow Load - 10 psf

Tulsa County, OK: your roof's ASCE 7 snow number, in plain English

Light
10 psf

Tulsa County's roofs are built to hold 10 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. Flat and low-pitch roofs in Tulsa County are actually governed by ASCE 7's §7.3.4 minimum of 10 psf, not the 7 psf the ground-load formula alone would produce.

In depth, not weight: that's roughly 22 inches of fresh, light snow, 8 inches of old, settled snow, or as little as 2 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.

Tulsa County in numbers

Tulsa County by the numbers

Nationally that's #1,652 out of 2,758 rated counties, the top 60%; within Oklahoma alone, Tulsa County ranks #20 of 77. 11 psf is Oklahoma's typical county figure - Tulsa County comes in 1 psf under it.

Tulsa County, FIPS 40143, is home to 693,514 people near 36.1203°N 95.9418°W. Its 10 psf ground snow load figure is the map value; 10 psf is what a roof is actually designed for.

Tulsa County's snowfall, most winters

8.7 in. a year: that's Tulsa County's NOAA 1991-2020 snowfall normal, measured at TULSA INTL AP, OK US (6.3 mi away). See the density guide.

Before you rely on Tulsa County's number

Treat the Tulsa County 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. (How this figure is calculated.)