US Bridges

51st Avenue SW over Creek

Fair

Grant County, North Dakota · 3 East of Carson · Structure no. 000000019129221

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
26 ft
1 main span
Daily traffic
25
2018 count
Owner
County
County Highway Agency

About this bridge

51st Avenue SW over Creek is a concrete channel beam carrying 51st Avenue SW over Creek in Grant County, North Dakota. It was built in 1966, so it is 59 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 25 vehicles a day, projected to reach 25 by 2038. The structure is 26 ft (7.9 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries51st Avenue SW
CrossesCreek
Location3 East of Carson
RouteCounty Highway 0
Coordinates46.40473, -101.48713
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2018)
Projected traffic25 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 51st Avenue SW over Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is 51st Avenue SW over 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 June 2024.

How much traffic does 51st Avenue SW over Creek carry?

About 25 vehicles per day (2018 count).

How long is 51st Avenue SW over Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 23 ft wide.

Who owns 51st Avenue SW over Creek?

It is owned by the County Highway Agency.