US Bridges

Nd Highway 32 over Timber Coulee

Fair

Ransom County, North Dakota · 2 South of Nd 27 · Structure no. 0032034072

Built
1950
75 years old, rebuilt 2005
Condition
Fair
inspected June 2021
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
2,960
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 32 over Timber Coulee is a concrete culvert carrying Nd Highway 32 over Timber Coulee in Ransom County, North Dakota. It was built in 1950 and reconstructed in 2005, so it is 75 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 2,960 vehicles a day, roughly 11% of them trucks, projected to reach 2,960 by 2039. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 72.1 mi (116 km).

CarriesNd Highway 32
CrossesTimber Coulee
Location2 South of Nd 27
RouteState Highway 32
Coordinates46.40661, -97.68364
Functional classRural Minor Arterial

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 inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating66.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
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 traffic2,960 (2019)
Projected traffic2,960 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.1 mi (116 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nd Highway 32 over Timber Coulee built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2005.

What condition is Nd Highway 32 over Timber Coulee 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 2021.

How much traffic does Nd Highway 32 over Timber Coulee carry?

About 2,960 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Nd Highway 32 over Timber Coulee?

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

Who owns Nd Highway 32 over Timber Coulee?

It is owned by the State Highway Agency.