US Bridges

81st Ave SW over Spring Creek

Fair

Stark County, North Dakota · 12 S 7 E Richardton · Structure no. 000000045151211

Built
1989
36 years old
Condition
Fair
inspected August 2022
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
125
2016 count
Owner
County
County Highway Agency

About this bridge

81st Ave SW over Spring Creek is a concrete culvert carrying 81st Ave SW over Spring Creek in Stark County, North Dakota. It was built in 1989, so it is 36 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 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 125 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2036. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
Carries81st Ave SW
CrossesSpring Creek
Location12 S 7 E Richardton
RouteCounty Highway 4549
CountyStark County
StateNorth Dakota
Coordinates46.71314, -102.15967
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.8 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2016)
Projected traffic120 by 2036
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 Spring Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is 81st Ave SW over Spring 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 August 2022.

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

About 125 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is 81st Ave SW over Spring Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns 81st Ave SW over Spring Creek?

It is owned by the County Highway Agency.