US Bridges

Nd Highway over Square Butte Creek

Good

Morton County, North Dakota · 8 North of I-94 · Structure no. 0025008224

Built
1987
38 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
1,020
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway over Square Butte Creek is a prestressed concrete stringer/multi-beam or girder carrying Nd Highway over Square Butte Creek in Morton County, North Dakota. It was built in 1987, so it is 38 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 1,020 vehicles a day, roughly 11% of them trucks, projected to reach 1,394 by 2039. The structure is 106 ft (32.3 m) long and 43 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesNd Highway
CrossesSquare Butte Creek
Location8 North of I-94
RouteState Highway 25
Coordinates46.9769, -101.03027
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating47.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span102 ft (31.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2019)
Projected traffic1,394 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 Square Butte Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nd Highway over Square Butte 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 June 2023.

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

About 1,020 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Nd Highway over Square Butte Creek?

The structure is 106 ft (32.3 m) long with a longest span of 102 ft (31.1 m) and a deck 43 ft wide.

Who owns Nd Highway over Square Butte Creek?

It is owned by the State Highway Agency.