US Bridges

97th ST SW over Spring Creek

Fair

Bowman County, North Dakota · 11 South 5 East Bowman · Structure no. 000000006137180

Built
1960
65 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Concrete
Length
71 ft
3 main spans
Daily traffic
100
2019 count
Owner
County
County Highway Agency

About this bridge

97th ST SW over Spring Creek is a concrete channel beam carrying 97th ST SW over Spring Creek in Bowman County, North Dakota. It was built in 1960, so it is 65 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 100 vehicles a day, projected to reach 80 by 2039. The structure is 71 ft (21.6 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries97th ST SW
CrossesSpring Creek
Location11 South 5 East Bowman
RouteCounty Highway 618
CountyBowman County
StateNorth Dakota
Coordinates46.01766, -103.29207
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating38 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans3
Design loadH 20
Structure length71 ft (21.6 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic100 (2019)
Projected traffic80 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 97th ST SW over Spring Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is 97th ST 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 October 2023.

How much traffic does 97th ST SW over Spring Creek carry?

About 100 vehicles per day (2019 count).

How long is 97th ST SW over Spring Creek?

The structure is 71 ft (21.6 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns 97th ST SW over Spring Creek?

It is owned by the County Highway Agency.