Skip to content
Department of Transportation & Public Facilities Logo
Alaska Department of Transportation and Public Facilities

NORTHERN REGION
You are here: DOT&PF >  Northern Region > Projects > Denali Highway Culvert Replacement

Denali Highway Culvert Replacement
Project No. 0750016/NFHWY00701

MP 107 culvert after cleaning

We are working to replace culverts on the Denali Highway at MP 93.2, MP 107, and MP 124.5.

The purpose of this project is to replace culverts that are failing and unable to handle the volume of water and upgrading the fish passages.

The existing culverts are failing and not adequate for fish passages or the volume of water that needs to pass through. The culverts are beginning to fail getting kinks and becoming buried under the existing ground.

ROAD CLOSURE INFORMATION

There will be road closures of the Denali Highway during this project. No traffic will be able to get through during these closures.
  • Monday, September 23rd, 7 a.m.-7 p.m. at Denali highway milepost 93
  • Wednesday, September 25th, 7 a.m.-7 p.m. at Denali Highway milepost 93
  • Tuesday, October 1st through Monday October 7th, closed at all times during this period between Denali Highway mileposts 107-124

Work on this project includes:

  • Removal of existing culverts
  • Installing a 72” culvert, a 108” culvert, and a 168” culvert
  • Furnishing fish passage substrate at MP 107.5 and MP 124

Our project staff is currently working on the construction phase

  • Initial clearing of all three locations is complete
  • Materials and equipment have been staged
  • Environmental protection has been installed
  • Upcoming Road Closure @ MP 93 7 am – 7 pm 9/23 & 9/25
  • Upcoming Road Closure @ MP 107 – MP 124 from 10/1 through 10/7

This project is being constructed with the Alaska Division of the Federal Highway Administration, DOT&PF, and Great Northwest, Inc.