US Bridges

126th Ave SW over Green River

Good

Billings County, North Dakota · 7 East 7 North of Fryburg · Structure no. 000000004124180

Built
1986
39 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
50
2018 count
Owner
County
County Highway Agency

About this bridge

126th Ave SW over Green River is a prestressed concrete box beam or girders - single or spread carrying 126th Ave SW over Green River in Billings County, North Dakota. It was built in 1986, so it is 39 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 50 vehicles a day, projected to reach 30 by 2038. The structure is 72 ft (21.9 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries126th Ave SW
CrossesGreen River
Location7 East 7 North of Fryburg
RouteCounty Highway 0
Coordinates47.06724, -103.15949
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating27.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span67 ft (20.4 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2018)
Projected traffic30 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 126th Ave SW over Green River built?

It was built in 1986, making it 39 years old in 2025.

What condition is 126th Ave SW over Green River 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 126th Ave SW over Green River carry?

About 50 vehicles per day (2018 count).

How long is 126th Ave SW over Green River?

The structure is 72 ft (21.9 m) long with a longest span of 67 ft (20.4 m) and a deck 34 ft wide.

Who owns 126th Ave SW over Green River?

It is owned by the County Highway Agency.