Cirque Meadows by Adam Johnson

Larimer County Offices, Courts, District Attorney, and Landfill are closed on May 29, 2017 in observance of the Memorial Day Holiday. Critical services at Larimer County are not disrupted by closures.

> Departments > Community Development > Building > Structural Design

Structural Design Information

1608.2 Ground Snow Loads. Add the following to this section:

The minimum snow load designs shall be:

Elevation Snow Load
Less than 7,000 feet (2133.6 M) 30 psf
7,000 to 8,000 feet (2133.6 M to 2438.4 M) 40 psf
8,001 to 9,000 feet (2438.7 M to 2743.2 M) 50 psf
9,001 and above (2743.5 M & up) 70 psf

1609.1.1 Determination of wind loads. This section hereby amended to read as follows:

Minimum Design Wind Speed varies between 90-180 ph (3-second gust), Exposure C in open rural areas and Exposure B in protected urban or forest areas. (See our Wind Speed Map and our Larimer Winds Interactive Map)

1612 Flood Loads. Delete the entire section and insert the following:

Flood Plain Overlay Zone Districts established in the Larimer County Land Use Code Section 4.2.2

1615 Earthquake Loads-Site Ground Motion.

Earthquake 0.2 sec spectral response acceleration Ss = 22.5, Site Class B

Earthquake 1.0 sec spectral response acceleration S1 = 7.0, Site Class B

1611.1 Design rain loads.

60-minute duration, 100-year return:

Location Inches/Hour GPM/Square Foot
Fort Collins 2.6 0.027
Loveland 2.66 0.0275

1805.2.1 Frost Protection. Add minimum frost depth.

1. Extending below the frost line of the locality (30 inches minimum).

Background Image: Cirque Meadows by Adam Johnson. All rights reserved.