US Bridges

Nd Highway over Br. Square Butte Creek

Fair

Oliver County, North Dakota · 2 North of Hannover · Structure no. 0031097276

Built
1948
77 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
560
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway over Br. Square Butte Creek is a concrete culvert carrying Nd Highway over Br. Square Butte Creek in Oliver 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 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 560 vehicles a day, roughly 16% of them trucks, projected to reach 623 by 2039. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesNd Highway
CrossesBr. Square Butte Creek
Location2 North of Hannover
RouteState Highway 31
CountyOliver County
StateNorth Dakota
Coordinates47.13481, -101.42635
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.4 US tons
Inventory rating19.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 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 traffic560 (2019)
Projected traffic623 by 2039
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 over Br. Square Butte Creek built?

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

What condition is Nd Highway over Br. Square Butte 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 2023.

How much traffic does Nd Highway over Br. Square Butte Creek carry?

About 560 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is Nd Highway over Br. Square Butte Creek?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns Nd Highway over Br. Square Butte Creek?

It is owned by the State Highway Agency.