US Bridges

County Highway over Branch of Maple River

Good

Cass County, North Dakota · 3 West 4 South Casselton · Structure no. 000000009120290

Built
1953
72 years old, rebuilt 2019
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
20
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Branch of Maple River is a steel stringer/multi-beam or girder carrying County Highway over Branch of Maple River in Cass County, North Dakota. It was built in 1953 and reconstructed in 2019, so it is 72 years old, older 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 20 vehicles a day, projected to reach 20 by 2039. The structure is 40 ft (12.1 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Highway
CrossesBranch of Maple River
Location3 West 4 South Casselton
RouteCounty Highway 0
CountyCass County
StateNorth Dakota
Coordinates46.83198, -97.28479
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length40 ft (12.1 m)
Longest span37 ft (11.4 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 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 closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$222,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Branch of Maple River built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2019.

What condition is County Highway over Branch of Maple 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 November 2024.

How much traffic does County Highway over Branch of Maple River carry?

About 20 vehicles per day (2019 count).

How long is County Highway over Branch of Maple River?

The structure is 40 ft (12.1 m) long with a longest span of 37 ft (11.4 m) and a deck 25 ft wide.

Who owns County Highway over Branch of Maple River?

It is owned by the County Highway Agency.