US Bridges

74th Ave SW over Antelope Creek

Fair

Grant County, North Dakota · 7 N 1 W of New Leipzig · Structure no. 000000019106161

Built
1948
77 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
80
2018 count
Owner
County
County Highway Agency

About this bridge

74th Ave SW over Antelope Creek is a concrete channel beam carrying 74th Ave SW over Antelope Creek in Grant County, North Dakota. It was built in 1948, so it is 77 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 5 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 80 vehicles a day, projected to reach 120 by 2038. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries74th Ave SW
CrossesAntelope Creek
Location7 N 1 W of New Leipzig
RouteCounty Highway 1905
CountyGrant County
StateNorth Dakota
Coordinates46.49533, -101.96506
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2018)
Projected traffic120 by 2038
Trucks0%
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 74th Ave SW over Antelope Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is 74th Ave SW over Antelope 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 74th Ave SW over Antelope Creek carry?

About 80 vehicles per day (2018 count).

How long is 74th Ave SW over Antelope Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns 74th Ave SW over Antelope Creek?

It is owned by the County Highway Agency.