Ada County Highway District

27th Street, Main Street to State Street

General Description:

The opening of Whitewater Park Boulevard allows for changes to 27th Street between Main and State streets, alterations designed to return it to its original character. This is a joint project between the Ada County Highway District, the City of Boise and the Capital City Development Corporation.

Project Description

  • Resurface roadway.
  • Restripe 27th Street between Bannock Street and Stewart Avenue to include two lanes of traffic with bike lanes. Parking will be allowed on the west side of the street.
  • Keep center turn lane at both ends of 27th Street.
  • Construct bulb outs on west side of 27th Street at Pleasanton Avenue and Stewart Avenue.
  • Install small medians at Bannock Street and Stewart Avenue.
  • Install signalized pedestrian crossings at Stewart Avenue, Pleasanton Avenue, and Bannock Street.
  • Construct pedestrian ramps.

 Click on the image below to view the improvements.


Work will also be completed on 27th Street between Fairview Avenue and Main Street.

Project Purpose

  • Improve safety
  • Improve accessibility for residents and businesses
  • Enhance the neighborhood feel of the 27th Street area


This project came from the 30th Street Area Master Plan. The plan calls for 27th Street to become a neighborhood commercial district, improving safety and accessibility for residents and businesses.

The completion of Whitewater Park Boulevard (also known as the 30th Street Extension) will reduce commuter traffic on 27th Street. With lower traffic volumes the 27th Street area will become a more pedestrian friendly, residential and mixed commercial district. Learn more about the development of Whitewater Park Boulevard .


Time Frame

Start Date:
Summer 2014
End Date:
Fall 2014

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