US Bridges

County Highway over Cow Creek

Good

Williams County, North Dakota · 1 East 19 North Trenton · Structure no. 000000053111200

Built
2014
11 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
550
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Cow Creek is a prestressed concrete stringer/multi-beam or girder carrying County Highway over Cow Creek in Williams County, North Dakota. It was built in 2014, so it is 11 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 550 vehicles a day, roughly 10% of them trucks, projected to reach 606 by 2039. The structure is 85 ft (25.9 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty Highway
CrossesCow Creek
Location1 East 19 North Trenton
RouteCounty Highway 0
Coordinates48.34759, -103.82048
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.8 US tons
Inventory rating55.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length85 ft (25.9 m)
Longest span85 ft (25.9 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2019)
Projected traffic606 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$243,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Cow Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is County Highway over Cow 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 July 2023.

How much traffic does County Highway over Cow Creek carry?

About 550 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is County Highway over Cow Creek?

The structure is 85 ft (25.9 m) long with a longest span of 85 ft (25.9 m) and a deck 39 ft wide.

Who owns County Highway over Cow Creek?

It is owned by the County Highway Agency.