I-89 Richmond - Emergency Culvert Replacement

Construction Updates

TRAFFIC IMPACT: The "zipper merge" technique is in place. Motorists can expect to use both lanes until they reach the merge point, then take turns merging into the single lane of traffic, like a zipper closing. 

An example of the zipper merge for Minnesota State Department of Transportation

 


PROJECT UPDATE: The installation of the precast concrete culvert bottoms for the new box culvert has begun. Once all 24 sections have been placed, stone aggregate will be placed in the culvert bed to slow the water flow down and provide stream bed material for fish and wildlife.

The following is the anticipated work schedule for the week beginning Monday, October 3, 2022. Please note the new work hours being 24 hours a day, 6 days per week.

Monday through Saturday - 24 hours per day:

  • Installation of the precast concrete tops of the box culvert

 

I-89 Richmond Culvert

Precast culvert base loaded and ready for delivery to project site

I89 Richmond

Installation of precast culvert base sections

 


The following is the anticipated work schedule for the week beginning Monday, September 26, 2022. Please note the new work hours being 24 hours a day, 6 days per week.

Monday through Saturday - 24 hours per day:

  • Complete the "support of excavation" work.
  • Preparation work to begin the installation of the new culvert box culvert.

I-89 Richmond Culvert

Failed culvert pipe is now exposed; Temporary lines installed


The following is the anticipated work schedule for the week beginning Monday, September 18, 2022. Please note the new work hours being 24 hours a day, 6 days per week.

Monday through Saturday - 24 hours per day:

  • Complete the "support of excavation" work.
  • Preparation work for the installation of the new culvert.

I-89 Richmond Culvert

Support excavation work nearing completion on I-89 southbound


The following is the anticipated work schedule for the week beginning Monday, September 12, 2022:

Monday through Friday - Daytime:

  • Continue excavation work for the "support of excavation" for the removal of the failed culvert.
  • Additional bracing continues to be placed as the excavation depth increases.

I89 Richmond culvert

Existing culvert outlet on the west side of I-89 southboun


The following is the anticipated work schedule for the week beginning Monday, September 5, 2022:

Monday:

  • No work due to the Labor Day holiday

Tuesday through Friday - Daytime:

  • Continue installation of metal sheeting to stabilize the foundation to reach the failed culvert.

PLEASE USE CAUTION AND FOLLOW THE POSTED SPEED LIMITS!