S = (0.20 + 0.025 (A-5))Proof, where S shall be greater than or equal to 0.20Proof.
Where:
S = Weight of snow to be used in combination with seismic loads.
A = Elevation above sea level at the location of the structure (ft/1,000)
Proof = Design roof snow loads, Pf or Ps, psf
For the purpose of this section, snow load shall be assumed uniform on the horizontal projection without including the effects of drift or sliding. The Importance Factor, I, used in calculating Pf may be considered 1.0."
TABLE 7.2-9 | |||
GROUND SNOW LOADS FOR SELECTED LOCATIONS IN UTAH | |||
City/Town | County | Ground Snow Load (lb/ft2) | Elevation (ft) |
Beaver | Beaver | 35 | 5886 |
Brigham City | Box Elder | 42 | 4423 |
Castle Dale | Emery | 32 | 5669 |
Coalville | Summit | 57 | 5581 |
Duchesne | Duchesne | 39 | 5508 |
Farmington | Davis | 35 | 4318 |
Fillmore | Millard | 30 | 5138 |
Heber City | Wasatch | 60 | 5604 |
Junction | Piute | 27 | 6030 |
Kanab | Kane | 25 | 4964 |
Loa | Wayne | 37 | 7060 |
Logan | Cache | 43 | 4531 |
Manila | Daggett | 26 | 6368 |
Manti | Sanpete | 37 | 5620 |
Moab | Grand | 21 | 4029 |
Monticello | San Juan | 67 | 7064 |
Morgan | Morgan | 52 | 5062 |
Nephi | Juab | 39 | 5131 |
Ogden | Weber | 37 | 4334 |
Panguitch | Garfield | 41 | 6630 |
Parowan | Iron | 32 | 6007 |
Price | Carbon | 31 | 5558 |
Provo | Utah | 31 | 4541 |
Randolph | Rich | 50 | 6286 |
Richfield | Sevier | 27 | 5338 |
St. George | Washington | 21 | 2585 |
Salt Lake City | Salt Lake | 28 | 4239 |
Tooele | Tooele | 35 | 5029 |
Vernal | Uintah | 39 | 5384 |
Note: To convert lb/ft2 to kN/m2, multiply by 0.0479. To convert feet to meters, multiply by 0.3048. 1. Statutory requirements of the Authority Having Jurisdiction are not included in this state ground snow load table. 2. For locations where there is substantial change in altitude over the city/town, the load applies at and below the cited elevation, with a tolerance of 100 ft (30 m). 3. For other locations in Utah, see Bean, B., Maguire, M., Sun, Y. (2018), "The Utah Snow Load Study," Utah State University Civil and Environmental Engineering Faculty Publications, Paper 3589, http://utahsnowload.usu.edu/, for ground snow load values." |
WHERE:
Ws = Weight of snow to be included as effective seismic weight
A = Elevation above sea level at the location of the structure (ft./1,000)
Pf = Design flat roof snow load, psf.
For the purposes of this section, snow load shall be assumed uniform on the horizontal projection without including the effects of drift or sliding. The Importance Factor, Is, used in calculating Pf may be considered 1.0 for use in the formula for Ws."
Utah Code § 15A-3-107