Knik Goose Bay Road: Vine Road to Settler's Bay


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The Project

The Alaska Department of Transportation and Public Facilities’ (DOT&PF) Knik-Goose Bay (KGB), Vine Road to Settler’s Bay Drive proposes to reconstruct KGB from Commadore Lane to Settler’s Bay Drive. The objective of this project is to reconstruct the existing two-lane road as a four-lane divided roadway and include pedestrian facilities, turn pockets, access control, traffic signals, drainage, and other related improvements. The functional class, of Principal Arterial, will be preserved throughout the reconstruction of KGB Road.


Project Status

The project design is approximately 75% complete. The project team is reviewing the proposed design based on updated traffic projections to determine if any modifications to the proposed design are needed. The team is also further evaluating drainage issues in the corridor based on public comments regarding ponding in the corridor and erosion issues resulting from concentrated areas of runoff. The team will continue to coordinate with the adjacent KGB, Vine to Centaur project to develop an efficient design for the overall KGB corridor that minimizes traffic disruptions during construction. The next steps include completing the hydrology and traffic analyses, refining the engineering plans, continuing to gather public input, working with utility companies to relocate any facilities that are impacted, and initiating the appraisal and acquisition of additional right-of-way that is needed for the project.

Project Goals

The two primary goals of this project are to increase capacity and improve safety. The corridor currently experiences high congestion, low performance and high collision rates, particularly during peak hours, due to limited capacity and a high density of driveway access. Congestion issues are only expected to increase, spurred by development along KGB, future land development in the Point MacKenzie area, and large anticipated population growth in the Matanuska-Susitna Valley.


This project will address capacity issues by:

  • Limiting access to maximize the through capacity and minimize conflicts in the corridor;
  • Improving intersection control, such as auxiliary lanes, signal location, and signal progression; and
  • Increasing roadway capacity.

Safety issues will be addressed in this project by considering:

  • Revised cross section;
  • Additional or redesigned pedestrian facilities; and
  • Reduced or reconfigured approach road access to KGB.

 


Typical Section (August 2018)


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Preliminary Concept Design (September 2018)

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Project Purpose and Need

Purpose

  • Improve safety
  • Reduce congestion
  • Increase travel efficiency

Need

  • Reduce high severity crash rates along the corridor, particularly head-on collisions, and reduce overall crash rates along the corridor for vehicles and roadway users.
  • Reduce congestion for users and reduce delay at signalized and unsignalized intersections.
  • Decrease travel time for users commuting to the Parks Highway or major roads that lead to Anchorage. Safely and efficiently accommodate mobility for longer trips and accessibility to adjacent land and local streets.


Project Area Background

This section of roadway has a mix of industrial, commercial, and residential uses and is identified by DOT&PF as a principal arterial, which means it is intended to provide higher mobility and lower access. In 2009, this roadway was designated by DOT&PF as a Traffic Safety Corridor due to a fatal accident rate that was 3.8 times the national average. There are undeveloped sections of land along this road section and future land development here and to the south will increase use of the road corridor.

Potential right-of-way (ROW) acquisitions, utility conflicts, and ongoing drainage issues have been identified. The project team will develop a State Environmental Checklist, a Design Study Report (DSR), and bid-ready documents (known as Plans, Specifications, and Estimates [PS&E]). See the SCHEDULE and MEETINGS pages for details on the timeline of this project.