US Bridges

77th Ave SW over Creek

Good

Grant County, North Dakota · 15N 3W of New Leipzig · Structure no. 000000019103080

Built
1965
60 years old
Condition
Good
inspected September 2024
Type
Channel Beam
Concrete
Length
32 ft
1 main span
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

77th Ave SW over Creek is a concrete channel beam carrying 77th Ave SW over Creek in Grant County, North Dakota. It was built in 1965, so it is 60 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 20 vehicles a day, projected to reach 20 by 2038. The structure is 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries77th Ave SW
CrossesCreek
Location15N 3W of New Leipzig
RouteCounty Highway 0
Coordinates46.61048, -102.03179
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.5 US tons
Inventory rating29 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic20 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 77th Ave SW over Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is 77th Ave SW over Creek 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 September 2024.

How much traffic does 77th Ave SW over Creek carry?

About 20 vehicles per day (2018 count).

How long is 77th Ave SW over Creek?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns 77th Ave SW over Creek?

It is owned by the County Highway Agency.