US Bridges

Nd Highway 18 over Cart Creek

Fair

Pembina County, North Dakota · 2 South of Nd 66 · Structure no. 0018209319

Built
1973
52 years old, rebuilt 2008
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
1,020
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 18 over Cart Creek is a concrete continuous slab carrying Nd Highway 18 over Cart Creek in Pembina County, North Dakota. It was built in 1973 and reconstructed in 2008, so it is 52 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,020 vehicles a day, roughly 13% of them trucks, projected to reach 1,020 by 2039. The structure is 80 ft (24.4 m) long and 41 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesNd Highway 18
CrossesCart Creek
Location2 South of Nd 66
RouteState Highway 18
Coordinates48.56826, -97.62291
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating61.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span28 ft (8.5 m)
Deck width41 ft (12.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2019)
Projected traffic1,020 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nd Highway 18 over Cart Creek built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2008.

What condition is Nd Highway 18 over Cart Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Nd Highway 18 over Cart Creek carry?

About 1,020 vehicles per day (2019 count), of which roughly 13% are trucks.

How long is Nd Highway 18 over Cart Creek?

The structure is 80 ft (24.4 m) long with a longest span of 28 ft (8.5 m) and a deck 41 ft wide.

Who owns Nd Highway 18 over Cart Creek?

It is owned by the State Highway Agency.