Ada County Highway District

Five Mile Road and Fairview Avenue Intersection (2010)

General Description:

The Fairview and Five Mile intersection officially opened to traffic at 7:20 a.m. on Friday, November 5, 2010. The  reconstructed intersection will reduce congestion and delay for motorists with additional through lanes and right and left turn lanes at each approach.

The Five Mile Road and Fairview Avenue intersection was designed as part of the Five Mile Road from Franklin Road to Fairview Avenue project. ACHD has completed the final design for the entire project, however, the projects will be constructed separately.


Construction on the Five Mile Road and Fairview Avenue intersection began in early January 2010 and will be completed in November 2010. The Five Mile Road, Franklin Road (to the southern limits of the intersection) project is programmed for construction in 2013. Both projects are anticipated to be federally funded. 


Project Purpose:

  • Improve traffic flow
  • Increase vehicular capacity
  • Improve pedestrian safety
  • Provide alternative means of transportation


Project Need:

  •  Accommodate anticipated increases in private, public and commercial traffic


Intersection improvements include:

  • Two through-lanes in each direction Fairview
  • One through-lane in each direction on Five Mile
  • Two left turn lanes on Five Mile, 1 left turn lane on Fairview (will be built to allow for an additional left turn lane to be striped on Fairview in the future)
  • Right turn lanes on all legs of the intersection
  • Street lights, curb, gutter, sidewalk and bicycle lanes on Five Mile

To improve longevity, the intersection will be constructed with concrete. Approximately 350 feet north of Fairview Avenue, the South Slough (Finch Lateral) crosses under the roadway. This section will be replaced and extended as part of this project. Several utility companies will be working to upgrade their facilities within the project area.


Landscaping that is removed will be replaced with sod except where right-of-way acquisition requires replacement or improvements.


Construction Impacts

  • One lane in each direction will be open to traffic at all times on Fairview unless special approval is given to the contractor
  • Two weekend intersection closures will be allowed during the length of the project
  • Five Mile on each side of Fairview will be closed at times due to work on Boise City's 15-feet-deep sewer line which runs down the middle of the roadway and the Milk and South Slough laterals which cross Five Mile
  • Access to businesses will remain open during construction


Time Frame

Start Date:
January 2010
End Date:
November 2010

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