Terrebonne Parish, LA Roof Snow Load - 0 psf

How much snow is too much for a roof in Terrebonne Parish, LA?

Picture it, not just weigh it: 0 in. if it's fresh powder, 0 in. once it settles, or a mere 0 in. if it's ice. This county’s ground snow load maps to zero - snow load is not a driver of roof design here.

Terrebonne Parish, LA: quick facts

• Design roof snow load0 psf
• Ground snow load, ASCE 7 map0 psf
• National rank#2,576 of 2,758
• Louisiana rank#40 of 64
• Population103,864
• Annual snowfall, NOAA normal0 in.
• FIPS22109

How Terrebonne Parish compares

0 psf ranks #2,576 of 2,758 US counties with a mapped snow load (top 93%) - and #40 of 64 in Louisiana. 2.4 psf is Louisiana's typical county figure - Terrebonne Parish comes in 2.4 psf under it.

Population 103,864 (FIPS 22109), roughly 29.3341°N 90.8437°W. The 0 psf ground snow load ASCE 7-22 maps here becomes 0 psf once the code's own design factors are applied.

Typical snowfall in Terrebonne Parish, LA

NOAA's 30-year normal for Terrebonne Parish: 0 in. of snow a year, from the THIBODAUX 4 SE, LA US station. Worth noting: the nearest station reporting snowfall normals sits 29.4 mi from Terrebonne Parish's center, so treat this as a regional figure rather than an exact one. (fresh vs. packed vs. ice explains why.)

What this Terrebonne Parish figure assumes

This is a county-level reference figure for a typical heated home built to Risk Category II (ordinary residential), on a partially exposed lot - the assumptions ASCE 7-22 itself treats as the default case. A steeper roof, a fully exposed hilltop lot, an unheated structure, or a higher risk category all change the actual number.

Terrebonne Parish's permit office wants an address-specific figure, not this county average - the ASCE 7 Hazard Tool is free, takes under a minute, and outputs a PDF most reviewers accept. See the methodology guide.