Petty Creek Road, Missoula County, Montana

User Information

Organization/Agency: FHWA - Western Federal Lands Highway Division (WFLHD)

Basic Project Information

Project Name/Description: Petty Creek Road

Nature of the Project/Study: Some 3R, some reconstruction to bring it up to AASHTO Standard

Project Location: City of Alberton, Missoula County, Montana

Highway Length: 12 miles

Functional Classification: Rural Collector

Design Speed: 35 mph

Posted Speed: 35 mph

Terrain Type: Rolling, Mountainous

Application of IHSDM

IHSDM Module(s) used:

• Policy Review

• Design Consistency

Purpose of using IHSDM on this project:

To verify four design exception areas, and to ensure that nothing was missed in the design.

Stage(s) of the project development process in which IHSDM was applied (e.g., planning, preliminary design, final design, etc.):

Preliminary

How IHSDM results were used to make design decisions:

To verify the design exception areas and help to write the WFLHD-3 form.