Project Description

The Alaska Department of Transportation & Public Facilities (DOT&PF) is rehabilitating aging storm drain pipes along Dimond Boulevard and Seward Highway corridors using cured-in-place pipe (CIPP) lining. This project focuses on extending the life of existing drainage infrastructure while minimizing excavation and traffic disruption.

Many of Anchorage’s storm drain pipes were installed decades ago and are reaching the end of their service life. By lining these pipes now, DOT&PF can restore structural integrity and prevent failures before upcoming pavement preservation projects.

What the Public May Notice

During construction, the public may see:

• Vacuum trucks and cleaning equipment used to clear storm drains
• Closed-circuit television (CCTV) cameras inspecting pipes
• Temporary lane closures near manholes or catch basins
• Short-term work areas where liners are installed through existing structures

Most work occurs from existing manholes and inlets, which helps reduce the need for roadway excavation.

Project Fact Sheet April 2026

What is CIPP?

Cured-in-place pipe (CIPP) is a trenchless rehabilitation method that installs a resinsaturated liner inside an existing pipe. The liner is expanded and cured in place, forming a new structural pipe within the old one. This method allows DOT&PF to rehabilitate storm drain pipes without fully excavating the roadway.

Project Area

Work will occur in Anchorage:
Seward Highway: Tudor Road to 20th Avenue
Dimond Boulevard: Jewel Lake Road to Seward Highway.

Project Description

Due to deteriorated pavement condition, the State of Alaska Department of Transportation and Public Facilities (DOT&PF) proposes to resurface Dimond Boulevard from Seward Highway to Jewel Lake Road as part of the larger project Anchorage Area Roads Group A Pavement Preservation. This project would extend the service life of the roadway and reduce future maintenance costs. Key design features of this project may include:

• Resurfacing
• Drainage improvements
• Structural section repairs
• Signage & striping
• Roadside hardware
• Vegetation clearing
• Utility relocation
• Guardrail replacement and repair
• Minor bridge rehabilitation
• Pedestrian facilities and Americans with Disabilities (ADA) compliant curb ramps.

Project Fact Sheet April 2026

Map view of the project area

Project Description

The State of Alaska Department of Transportation and Public Facilities (DOT&PF) will resurface Northern Lights Boulevard from Lake Otis Parkway to Forest Park Drive as part of the larger project, Anchorage Area Roads Group A Pavement Preservation. This project's goal is to extend the service life of the road and restore it back to good condition. The project will tackle surface defects such as ruts or areas with high roughness, by resurfacing the existing roadway. Other work may include improvements to:

• Drainage
• Targeted subgrade replacement
• Signage
• Striping
• Roadside hardware
• Vegetation clearing
• Utilities
• Bus stops
• Curb ramps

Project Fact Sheet April 2026

Map view of the project area

Project Description

Due to deteriorated pavement condition, the State of Alaska Department of Transportation and Public Facilities (DOT&PF) proposes to resurface Seward Highway from Tudor Road to 20th Avenue as part of the larger project Anchorage Area Group A Pavement Preservation. This project would extend the life of the roadway and reduce maintenance and operation efforts. Work comprises roadway resurfacing, and may include improvements to:

• Resurfacing
• Drainage improvements
• Structural section repairs
• Signage and striping
• Roadside hardware
• Vegetation clearing
• Utility relocation
• Intersection improvements
• Pedestrian facilities and Americans with
  Disabilities (ADA) compliant curb ramps

Project Fact Sheet April 2026

Map view of the project area