10th Street North Reconstruction Project
NDDOT is overseeing the complete reconstruction of 10th Street/US-81 from 4th Avenue to 12th Avenue North in downtown Fargo. This roadway is part of the U.S. Highway system. The project work will upgrade this stretch of roadway from a rural to urban roadway as well as improve safety.
This project started in May and slated to be complete in spring 2019.
Work Zone Limits:
4th Avenue N to 12th Avenue N in downtown Fargo
University Drive and 10th Street North have turned back into one-way roadways from 4th Avenue North – 12th Avenue North in north Fargo.
Current traffic control:
- Single northbound driving lane on west side of 10th Street N from 4th – 12th Avenues
- Two southbound driving lanes University Drive between 12th – 4th Avenues
Through the project limits:
- All pedestrian routes on 10th Street N and cross intersections are open
- All bike and truck traffic detour routes have been removed. A marked bike lane is open on west side of 10th Street N.
Ahead of Winter Suspension – end of 2018 work:
WHAT’S HAPPENING OVER NEXT WEEKS:
- Electrical, fencing, sidewalk, and earthwork will continue in the railroad underpass to support the new storm sewer lift station project
- Installation of pedestrian crossing system at the school
- Street light installation throughout the project limits
Winter Suspension – Nov/Dec – May 2019:
With the cooler temperatures approaching, the NDDOT and City of Fargo did not allow the contractor to begin the third phase of work, which would have completed the underground utilities and roadway service in the railroad underpass. The underpass has serviceable pavement in place on 10th Street N to carry traffic and made it useable through the winter months. Contractors were working on the roadway reconstruction and new storm sewer lift station projects concurrently since May.
10th Street North project will enter winter suspension in November/December.
The remaining project work is anticipated to take eight weeks and will start after North Dakota State University spring semester is over in May 2019. The scope of work will be to complete roadway improvements under the railroad underpass and complete the city utility tie-ins.
Spring 2019 traffic control: A head-to-head detour on University will be in use to accommodate final phases of project work in the underpass; however, it will be shortened significantly from 2018 project limits.
- Planned detour will route northbound 10th Street N traffic to University Drive to be carried head-to-head with one driving lane in each direction between 4th Avenue N – 7th Avenue North intersection
- All other one-way northbound traffic will remain on 10th Street N
Need for Roadway and Infrastructure Project:
- Remove some of the roadway curve out of 10th Street North between 8th and 10th Avenue
- Improve pavement condition and ride quality of the 30 year-old plus roadway
- Complete area infrastructure improvements and upgrade aging facilities of storm sewer, water main and sanitary sewer
- Improve load-carrying capacity
- Upgrade pedestrian facilities, traffic signals and lighting to improve safety features
Railroad Underpass Lift Station Project Work:
The 10th Street North underpass at the BNSF railroad crossing houses a storm water pump station behind the east wall of the underpass. The one access point for maintenance is from the roadway of 10th Street in the underpass. The original pump station was built in 1977 making the pumps and controls now 41 years old. The pump station was previously maintained by the railroad and on railroad land.
The new lift station is over 20 feet below the existing top of the underpass wall. To build the new structure to house the components for the storm sewer system, the new lift station construction schedule included:
First step: Build out of a temporary safety structure
- Crews started by installing a sheet pile cofferdam to safely excavate the area bounded by the existing retaining walls, two building, large sign and railroad track grade
- Once the temporary cofferdam was in place the hole for the new structure could safely be excavated and the structure built.
Second step: Build out of the permanent structure
- The new lift station structure was built behind the west wall of the underpass
- The area around the structure was backfilled
- Crews removed the temporary cofferdam
Third step: Make underground connections from system to lift station through the retaining wall
- Crews worked to install the storm sewer connections from the underpass through the wall to the new lift station
- This required removal of the existing retaining wall to make the pipe connection, and additionally the design called for the installation of a stronger wall from the pipe connection at the lift station and south
- The stronger wall will support the new concrete roadway and sidewalk over the top of the lift station and new east wall to allow access to the lift station from the south
- The new placement of the access into the lift station will allow City of Fargo service trucks to access for maintenance without affecting traffic on 10th Street N
Fourth step: Make additional underground connections to city utilities – weather permitting, phase will be complete in 2018
- New storm sewer force main needs to be installed behind the wall from the pump station south to connect to the existing storm sewer in 10th Street N south of 4th Avenue intersection
Fifth step: Installation of control panels to make the lift station operational – phase will be complete in winter 2018
- Crews will install underground control cabling to the lift station
- Control cables for the signal lights for the new roadway and sidewalk will be installed
- New lift station pumps, controls, and internal pump station valves and piping will be installed
Sixth step: Remaining underground connections under the driving surface will be made – phase will be complete in 2019
- Roadway surface will be removed to finish the underpass utility connections to new pipes installed to the north. These connections will put the new lift station into service
- The old lift station pumps, controls, and building will be removed to below existing ground, backfilled, and abandoned
- 10th Street N roadway surface between 4th Avenue – 6th Avenue will be replaced with new concrete with underground complete
Seventh step: Permanent lighting, roadway markings and signage will be installed – phase will be complete in 2019
- New lighting will be installed throughout the underpass
- New permanent directional roadway signage and roadway striping will be installed to re-open the underpass
NDDOT will be funding the project with a majority of federal and state funds. The City of Fargo will have participating items for infrastructure improvements.
Project cost is $7.1 Million:
- Federal: $4.1 Million
- State: $0.5 Million
- City: $2.5 Million (city infrastructure improvements to sanitary sewer and water main work)