Memorial Highway Reconstruction Project

1/12/26 Northern Improvement Company is scheduled to begin prep work for phase two of the Memorial Highway project Tuesday, Jan. 20.

This work includes removing small trees and bushes along the north side of Third Street SE between Riverwood Ave and just past 18^th Ave SE.

There will be no traffic impact at this time. All work will be completed in the right of way.

Phase two of this reconstruction project is expected to begin in the spring and will be completed over the next two years.

Work in 2026 will be from Main Street to Riverwood Ave SE and 2027 will be from Riverwood Ave SE to 32^nd Ave SE.

The North Dakota Department of Transportation reminds motorists to drive safely and stay alert in work zones.

For project updates and more information visit dot.nd.gov/memorialhwy and cityofmandan.com/mhp. Questions? Call 701-667-1033.

12/22/25 Memorial Highway Construction Newsletter

12/5/25 Memorial Highway Construction Newsletter

11/21/25 Memorial Highway Weekly Newsletter

11/15/25 Memorial Highway Weekly Newsletter

11/14/25 Memorial Highway Snow Removal Plan

11/14/25 Traffic Shift Planned on Memorial Highway in Mandan

11/12/25 Intersection of 32nd Ave SE & Memorial Highway closed until Friday, possibly Saturday

11/7/25 I-194 Eastbound Memorial Highway Exit is Re-Opened

11/6/25 Memorial Highway Weekly Newsletter

11/1/25 Memorial Highway Weekly Newsletter

10/31/25 Temporary Ramp Closure Expected

10/27/25 Memorial Highway Weekly Newsletter

10/23/25 Motorists traveling on Memorial Highway should be prepared for a change in the traffic pattern beginning Thursday, October 23. Traffic will shift from the temporary roadway on the north side of Memorial Highway to a portion of the concrete paving on the south side to allow crews to install a new water main and begin paving operations on the north side of the roadway. Drivers will notice the change particularly near the 46th Avenue SE intersection, where crews are scheduled to begin milling operations Thursday morning.

Traffic coming off the I94/Bismarck Expressway ramp from the north will be restricted to heading west onto Memorial Highway and east into Bismarck. Traffic heading southbound onto 46th Avenue SE should temporarily use the McKenzie Drive exit. The path for ramp traffic will change frequently while work at 46th Avenue SE continues. Business approaches near 46th Avenue SE have been paved and will be open for use as traffic transitions to the new configuration. Flaggers will be stationed in multiple locations to assist with the transition. Motorists are reminded to stay alert, watch for changing signage, and follow posted directions to help maintain safety for both drivers and crews during this phase of construction. For project updates and more information, visit: dot.nd.gov/memorialhwy. The North Dakota Department of Transportation reminds motorists to drive safely and stay alert in all work zones. For statewide road conditions, call 511 or visit travel.dot.nd.gov.

**Updated 10/23/25  Water service was restored to the affected area shortly before 7 p.m. this evening and required time to pressurize. Please contact us if you experience any issues.

 10/22/25 Due to a break in a water service line, water service is currently shut off from 32nd Ave SE to 40th Ave SE along Memorial Highway to allow crews to complete emergency repairs. The estimated outage duration is approximately 2 hours. Once repairs are complete and water service is restored, we will send an update. We apologize for the inconvenience and appreciate your patience while this work is completed. If you have any questions, please contact Ashley Weightman at 701-269-8907.

 10/18/25 Memorial Hwy Weekly Newsletter

**Updated 10/20/25 Water service has been restored however, crews are currently flushing the system and gradually increasing water pressure to ensure everything is functioning properly. You may experience low water pressure for a short period while this process is completed. This is temporary and should clear up as the system stabilizes. If you continue to experience issues after a few hours, please reach out to Ashley Weightman by email or 701-269-8907.

**Updated 10/17/25 Due to wet weather conditions, crews were not able to complete the water line adjustments last night. As mentioned in the original notice, the repairs will happen tonight beginning at 1am. We will send a notice when the water is back on. Please reach out to Ashley Weightman with any questions or concerns. 

10/17/25 To allow crews to complete necessary water line adjustments, water service will be temporarily shut off from 1:00 a.m. to 8:00 a.m. on Friday, October 17, in the area from 32nd Ave SE to 40th Ave SE along Memorial Highway. Please note, this schedule is weather dependent. If conditions prevent work from taking place Friday morning, the shutoff will occur during the same timeframe on Saturday morning instead. This planned shutoff will allow crews to safely relocate and connect portions of the existing water line to support infrastructure improvements in the area. We apologize for the inconvenience and appreciate your patience while this work is completed. If you have any questions or concerns, please contact Ashley Weightman at 701-269-8907.

10/10/25 Memorial Hwy Weekly Newsletter

10/03/25 Memorial Hwy Weekly Newsletter

10/01/25 Memorial Hwy Construction Update

 9/30/25 The North Dakota Department of Transportation (NDDOT) is announcing that the intersection of 46^th Ave SE and Memorial Highway in Mandan is expected to reopen Tuesday, Sept. 30.

Following the opening of 46^th Ave SE, the south side of the 40^th Ave SE and Memorial Highway intersection is expected to close Wednesday morning, Oct. 1, to allow crews to complete significant infrastructure improvements. Through traffic on Memorial Highway will not be affected; however, southbound access to 40^th Ave SE from Memorial Highway will be closed.

Work South of Memorial Highway on 40^th Ave SE will include:

• Construction of a new concrete roadway with curb and gutter
• Installation of a new storm sewer
• New water main installation along 40^th Ave SE
• Sanitary sewer connections
• Replacement of the old lift station with a new facility
• Installation of new traffic signals and lighting

The closure is expected to last approximately three weeks. No detour will be in place, and motorists are encouraged to plan ahead and use alternate routes. 

9/25/25 (7:51 p.m.) —Water service along Memorial Highway has been restored. 

9/25/25 (12:45 p.m.) —Unfortunately, the repair scheduled for this evening failed and crews had to shut off water immediately to complete the repair. At this time, we do not have an estimated timeline for when service will be restored. We will provide an update as soon as more information is available. We apologize for the inconvenience.

9/24/25 Due to a water service line that was hit earlier this week, a temporary water shutoff is required to complete repairs to a business service line connection. The contractor will be repairing the fitting that connects the service line to the watermain.

Planned Outage:
• Start: Thursday, Sept. 25 at 8 p.m.
• End: Friday, Sept. 26 at 8 a.m.

Affected Area:
• Memorial Highway from 32^nd Ave SE to 46^th Ave SE
• Businesses along 40^th Ave SE between Memorial Highway and 19^th St SE
• All businesses on the north side of Memorial Highway
• 43^rd Ave SE between Memorial Highway and 19^th St SE

We apologize for the inconvenience and appreciate your patience as crews work to complete this repair. If you have questions or need additional information, please contact Ashley at 701-269-8907.

Thank you for your understanding.

 9/19/25 Memorial Highway Newsletter 9-19

9/12/25 Memorial Highway Weekly Newsletter

 9/10/25 A water main was struck during construction on Memorial Highway, just east of 40th Avenue SE. As a result, water service has been temporarily shut off in the area. At this time, we do not have an estimate for when service will be restored.

We will share updates as soon as more information becomes available. 

If you have questions or concerns, please reach out to Ashley Weightman at 701-269-8907.

Thank you for your understanding.

• 4:52 p.m. As an update, water service has been shut off along Memorial Highway from 36th Avenue SE to 46th Avenue SE. This also affects properties to the south, extending just to 19th Street SE. We will continue to provide updates as soon as more information becomes available.
• 7:50 p.m. Service has been restored to the area. 

 9/4/25 Memorial Highway Bi-Weekly Newsletter

9/2/25 Memorial Highway Monthly Newsletter (Sept. 2025) 

8/25/25 Memorial Highway Bi-Weekly Newsletter

 8/22/25 As part of the ongoing Memorial Highway reconstruction project, traffic control at the 46^th Ave SE intersection is being adjusted. The previous two-lane closure did not allow enough space for crews to safely complete underground utility and paving work, so a full closure of certain movements at the intersection will now be required. The closure will begin Tuesday, Aug. 26, and is expected to remain in place until at least the week of Sept. 22.

During this time, crews will complete storm sewer, water main, aggregate, and paving operations in this area.

What this means for drivers:

• Traffic on Memorial Highway will be reduced to head-to-head traffic on the north side of the roadway.
• From the south exit ramp, take the flyover bridge into Bismarck or turn right onto Memorial Highway. Drivers will not be able to cross over to 46^th Ave or make a left turn back toward the I-94 Business Loop.
• Traffic on 46^th Ave SE will not be able to directly access Memorial Highway. Drivers will need to use alternate routes such as 21^st Street SE or the McKenzie Interchange.

Good news for drivers: paving work on 21^st Street SE is scheduled to begin Monday, Aug. 25, with the street reopening to traffic by Tuesday, Aug. 26. This will provide an additional option for drivers navigating detour routes while 46^th Ave SE remains closed.

Click here to view a map of the area

 8/19/25 Memorial Highway in Mandan will be reduced to two lanes at 46^th Ave SE beginning the evening of Tuesday, Aug. 19.

The lane reduction will allow crews to install new sanitary sewer and water main connections as part of the ongoing Memorial Highway reconstruction project. Work is expected to last about three weeks, depending on weather and field conditions.

Drivers should plan for additional delays at this intersection and are reminded to use caution and follow posted traffic control when traveling through the construction zone. Click here for a map of the area. 

 8/12/25 43^rd Ave SE will be closed at Memorial Highway for 100 feet for installation of a new water main beginning at 5:30 a.m. Wednesday, Aug. 13. The work is expected to be completed and the road reopened by Monday, Aug. 18.

All businesses will remain open throughout the temporary closure. Motorists should use 19^th Street SE to reach affected businesses. Click here to view a map of the area. 

 8/1/25 Memorial Highway Monthly Newsletter

7/29/25 Memorial Highway Construction Newsletter

7/17/25 Memorial Highway Construction Newsletter

7/1/25 Memorial Highway Construction Newsletter

7/1/25 Memorial Highway Monthly Newsletter

5/30/25 Memorial Highway Monthly Newsletter

5/13/25 Memorial Highway Construction Bi-Weekly Newsletter

5/13/25 Traffic Changes on 19th and 21st Streets SE Expected This Week

 5/2/25 Memorial Highway Construction Bi-Weekly Newsletter

5/1/25 Memorial Highway Monthly Newsletter

4/15/25 Memorial Highway Construction Bi-Weekly Newsletter

4/1/25 Memorial Highway Monthly Newsletter 

MDU will be removing overhead lines on Sunday, March 30 at three locations along Memorial Highway: 46th Ave, 40th Ave and just west of the Kia dealership. Traffic will be stopped for around 5 minutes per location to safely remove the overhead lines. Please use caution and be prepared to stop when in the area on Sunday, March 30. 

3/27/25 Temporary closure of 19^th Street SE in Mandan begins Apr. 1

 3/17/25 Construction Update. Memorial Highway construction will begin around April 1. Traffic will be reduced to a single lane in each direction during construction, the speed will be lowered to 25 mph, and there will be an 11-foot width restriction.

Memorial Highway will be reconstructed from 32^nd Ave SE to 46^th Ave SE as part of the 2025 construction season. The project includes replacing the existing surfacing with new concrete pavement, improving drainage, installing underground utilities, and a new multi-use path for bicyclists and pedestrians.

Other improvements include upgraded traffic signals, lighting, improved access for businesses, and drainage enhancements. The east half of the Memorial Highway reconstruction is expected to be completed by mid-November, and the east side multi-use path is scheduled for completion in 2026.

Upcoming Work. Project improvements include construction of an underground storm sewer trunk line that will cross 21^st St SE and 19^th St SE. Information regarding street closures and proposed detour routes is available here: 19^th St SE (starting Apr. 1, 2025), 21^st St SE (April 2025). 

Continue reading the April 2025 Newsletter. 

 The Memorial Highway Reconstruction project is a two-phase project, anticipated to take three years to complete: 

During construction, the roadway will remain OPEN with at least one travel lane in each direction and a center turn lane. Access to all businesses will remain open during the construction years as well. 

Project Overview. Full-depth reconstruction of Memorial Highway from Main Street to the Memorial Bridge including: 

• transitioning from an asphalt to concrete surface
• adding sidewalks to the NE side of the corridor and a shared use path to the SW side of the corridor
• improving traffic flow and intersection safety
• improving drainage
• providing safe access to businesses
• addressing pavement at the end of its useful life
• underground sanitary sewer and water line improvements
• MDU will bury current above-ground lines along the corridor. 

Financial Breakdown. The project is now estimated at $119M. The federal and state contributions to this project are estimated at $89M. The remaining $30M will be paid through a combination of funds including a City-wide speical assessment and a tiered, localized utility assessment. 

Click here to view a breakdown of the funding sources. 

Special Assessment District. There are two parts to the special assessment district: a tiered, localized special assessment district and a City-wide special assessment district: 

• The tiered assessment is for properties located either on-corridor or just off the corridor with a greater benefit from the project than the rest of the community. 
• A City-wide special assessment is being used for roadway and storm sewer improvements as most all people in the city of Mandan use and/or benefit from the roadway. The anticipated city-wide assessment is $500 per parcel paid back over a 20-year period (which is approximately $25/year). 

Information on the special assessment district was noticed in the Oct. 4 Mandan News newspaper. Tier 1 and Tier 2 property owners will soon receive a letter in the mail with information on the street improvement district, estimated costs and protest period. A 30-day protest period began Oct. 4, 2024. Residents may submit a letter of protest to the Engineering Department by 4:30 p.m. on Monday, Nov. 4. Consideration of sufficiency of protests and a public hearing are scheduled for the Nov. 5 City Commission meeting at 5:30 p.m. 

Final distribution of assessments will be determined by the City Commission at the conclusion of the project, after review and approval by the Special Assessment commission (anticipated in 2028). 

CLICK HERE FOR PAST PROJECT UPDATES.

Additional Information: