US Bridges

109th Ave SW over Green River

Good

Stark County, North Dakota · 5 North 2 East Dickinson · Structure no. 000000045123030

Built
2018
7 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
108 ft
3 main spans
Daily traffic
20
2019 count
Owner
County
County Highway Agency

About this bridge

109th Ave SW over Green River is a prestressed concrete box beam or girders - single or spread carrying 109th Ave SW over Green River in Stark County, North Dakota. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, projected to reach 20 by 2039. The structure is 108 ft (32.9 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries109th Ave SW
CrossesGreen River
Location5 North 2 East Dickinson
RouteCounty Highway 0
CountyStark County
StateNorth Dakota
Coordinates46.96473, -102.74758
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
Deck8 Very GoodNo problems noted.
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
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length108 ft (32.9 m)
Longest span36 ft (11.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic20 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$272,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 109th Ave SW over Green River built?

It was built in 2018, making it 7 years old in 2025.

What condition is 109th 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 109th Ave SW over Green River carry?

About 20 vehicles per day (2019 count).

How long is 109th Ave SW over Green River?

The structure is 108 ft (32.9 m) long with a longest span of 36 ft (11.1 m) and a deck 30 ft wide.

Who owns 109th Ave SW over Green River?

It is owned by the County Highway Agency.