Greenroads Pilot Project

West Dowling Road Phase II

 

Summary

Anchorage has an east-west corridor challenge. The two major east-west corridors, Tudor Road and Dimond Boulevard, suffer from daily heavy congestion. Alaska State DOT and Public Facilities District is solving the problem with a new, high mobility arterial. The West Dowling Road Phase II: Raspberry Road to C Street is the final piece that links east and west. When it opens in Ocober 2015, it is expected to provide significant congestion relief, improve pedestrian and bike-friendly connections, improve access to existing trails and ensure it can all handle a 100 year storm.

  • Construction Cost: $46.8 million 
  • Primary Owner: Alaska State Department of Transportation and Public Facilities District 
  • Design: HDR Alaska 
  • Contractor: Granite Construction

Description

West Dowling Road Phase II is complex project in a challenging part of Anchorage. Construction includes a four lane bridge over Arctic Boulevard and the Alaska Railroad, tracking the alignment with and minimizing environmental impacts on Tina Lake, and finally making connections with the heavily used C Street and Raspberry Road. In addition to the road construction, storm water systems will ensure the ecological succession and restoration of the Tina Lake area, as well as a sewer mainline extension to supply future development of a Chugach Electric power plant.

Features

This project improves east-west traffic flow and removes the traffic burden from two east-west routes. It promotes alternative transportation choices with the Class A bike lanes and shared-use path in both directions, plus improvements on adjacent local connecting streets. Other features include:

  • Two lanes in each direction separated by median 
  • New signalized intersections throughout the corridor 
  • Extensive stormwater management improves water quality for Tina Lake 
  • Sound berms reduces noise impacts on local communities

 

Alaska State DOT Completes First Greenroads Pilot Project (3,815 kb)

The challenge of the four-lane superstructure: keep freight moving while building a bridge

Crews reused on-site materials to build sound berm

This project built dedicated snow storage and created systems to clean snow near Tina Lake