US Bridges

County Highway over Turtle River

Good

Grand Forks County, North Dakota · 2 West 5 South of Manvel · Structure no. 000000018132131

Built
1990
35 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
80
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Turtle River is a prestressed concrete tee beam carrying County Highway over Turtle River in Grand Forks County, North Dakota. It was built in 1990, so it is 35 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 80 vehicles a day, projected to reach 80 by 2039. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesTurtle River
Location2 West 5 South of Manvel
RouteCounty Highway 0
Coordinates48.00878, -97.21744
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2019)
Projected traffic80 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Turtle River built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Highway over Turtle 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 August 2023.

How much traffic does County Highway over Turtle River carry?

About 80 vehicles per day (2019 count).

How long is County Highway over Turtle River?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 28 ft wide.

Who owns County Highway over Turtle River?

It is owned by the County Highway Agency.