US Bridges

81st Ave SW over Government Creek

Good

Stark County, North Dakota · 12 S 7 E of Richardton · Structure no. 000000045151210

Built
1982
43 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
124 ft
3 main spans
Daily traffic
125
2018 count
Owner
County
County Highway Agency

About this bridge

81st Ave SW over Government Creek is a prestressed concrete continuous box beam or girders - single or spread carrying 81st Ave SW over Government Creek in Stark County, North Dakota. It was built in 1982, so it is 43 years old, younger 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 125 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2038. The structure is 124 ft (37.8 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Carries81st Ave SW
CrossesGovernment Creek
Location12 S 7 E of Richardton
RouteCounty Highway 4549
Coordinates46.70639, -102.15978
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating23.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length124 ft (37.8 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2018)
Projected traffic120 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 81st Ave SW over Government Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is 81st Ave SW over Government 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 August 2024.

How much traffic does 81st Ave SW over Government Creek carry?

About 125 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is 81st Ave SW over Government Creek?

The structure is 124 ft (37.8 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns 81st Ave SW over Government Creek?

It is owned by the County Highway Agency.