US Bridges

4th Ave N.W. over Souris River

Good

Ward County, North Dakota · 4th AVE-16th ST Nw-Minot · Structure no. 0000MNOT15

Built
2016
9 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
7,850
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

4th Ave N.W. over Souris River is a prestressed concrete stringer/multi-beam or girder carrying 4th Ave N.W. over Souris River in Ward County, North Dakota. It was built in 2016, so it is 9 years old, younger than the North Dakota average of 48.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,850 vehicles a day, roughly 1% of them trucks, projected to reach 18,500 by 2039. The structure is 90 ft (27.4 m) long and 71 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries4th Ave N.W.
CrossesSouris River
Location4th AVE-16th ST Nw-Minot
RouteCity Street 8945
CountyWard County
StateNorth Dakota
Coordinates48.24006, -101.31628
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.8 US tons
Inventory rating56.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span90 ft (27.4 m)
Deck width71 ft (21.7 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,850 (2019)
Projected traffic18,500 by 2039
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$666,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 4th Ave N.W. over Souris River built?

It was built in 2016, making it 9 years old in 2025.

What condition is 4th Ave N.W. over Souris River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does 4th Ave N.W. over Souris River carry?

About 7,850 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is 4th Ave N.W. over Souris River?

The structure is 90 ft (27.4 m) long with a longest span of 90 ft (27.4 m) and a deck 71 ft wide.

Who owns 4th Ave N.W. over Souris River?

It is owned by the City or Municipal Highway Agency.