US Bridges

County Road over Turtle River

Good

Grand Forks County, North Dakota · 1 East 8 South Gilby · Structure no. 000000018121161

Built
1962
63 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete
Length
64 ft
2 main spans
Daily traffic
30
2019 count
Owner
County
County Highway Agency

About this bridge

County Road over Turtle River is a concrete tee beam carrying County Road over Turtle River in Grand Forks County, North Dakota. It was built in 1962, so it is 63 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 30 vehicles a day, projected to reach 30 by 2039. The structure is 64 ft (19.5 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road
CrossesTurtle River
Location1 East 8 South Gilby
RouteCounty Highway 0
Coordinates47.96616, -97.45042
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2019)
Projected traffic30 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Turtle River built?

It was built in 1962, making it 63 years old in 2025.

What condition is County Road 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 July 2023.

How much traffic does County Road over Turtle River carry?

About 30 vehicles per day (2019 count).

How long is County Road over Turtle River?

The structure is 64 ft (19.5 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns County Road over Turtle River?

It is owned by the County Highway Agency.