US Bridges

County Highway over Turtle River

Good

Grand Forks County, North Dakota · 1 West 2 South of Manvel · Structure no. 000000018133100

Built
1971
54 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
2 main spans
Daily traffic
215
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Turtle River is a steel stringer/multi-beam or girder carrying County Highway over Turtle River in Grand Forks County, North Dakota. It was built in 1971, so it is 54 years old, older 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 215 vehicles a day, roughly 12% of them trucks, projected to reach 150 by 2039. The structure is 96 ft (29.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesTurtle River
Location1 West 2 South of Manvel
RouteCounty Highway 1833
CountyGrand Forks County
StateNorth Dakota
Coordinates48.05021, -97.19172
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating22.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length96 ft (29.3 m)
Longest span45 ft (13.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic215 (2019)
Projected traffic150 by 2039
Trucks12%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$108,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Turtle River built?

It was built in 1971, making it 54 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 215 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is County Highway over Turtle River?

The structure is 96 ft (29.3 m) long with a longest span of 45 ft (13.7 m) and a deck 30 ft wide.

Who owns County Highway over Turtle River?

It is owned by the County Highway Agency.