US Bridges

County Road over Mouse River

FairPosted for load

McHenry County, North Dakota · 8 East of Bantry · Structure no. 000000025129090

Built
1982
43 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
121 ft
5 main spans
Daily traffic
35
2018 count
Owner
County
County Highway Agency

About this bridge

County Road over Mouse River is a wood or timber slab carrying County Road over Mouse River in McHenry County, North Dakota. It was built in 1982, so it is 43 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, projected to reach 35 by 2038. The structure is 121 ft (37 m) long and 29 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesCounty Road
CrossesMouse River
Location8 East of Bantry
RouteCounty Highway 0
CountyMcHenry County
StateNorth Dakota
Coordinates48.50605, -100.43455
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating10.4 US tons
Inventory rating6.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length121 ft (37 m)
Longest span26 ft (8 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2018)
Projected traffic35 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$131,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Mouse River built?

It was built in 1982, making it 43 years old in 2025.

What condition is County Road over Mouse River 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 October 2024.

How much traffic does County Road over Mouse River carry?

About 35 vehicles per day (2018 count).

How long is County Road over Mouse River?

The structure is 121 ft (37 m) long with a longest span of 26 ft (8 m) and a deck 29 ft wide.

Who owns County Road over Mouse River?

It is owned by the County Highway Agency.