US Bridges

County Highway over Swan Creek

Good

Cass County, North Dakota · 1 West Casselton · Structure no. 000000009123230

Built
2015
10 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete
Length
47 ft
3 main spans
Daily traffic
525
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Swan Creek is a concrete culvert carrying County Highway over Swan Creek in Cass County, North Dakota. It was built in 2015, so it is 10 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 525 vehicles a day, roughly 14% of them trucks, projected to reach 525 by 2038. The structure is 47 ft (14.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesSwan Creek
Location1 West Casselton
RouteCounty Highway 930
Coordinates46.90521, -97.23191
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic525 (2018)
Projected traffic525 by 2038
Trucks14%
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 statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$39,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Swan Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is County Highway over Swan 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 May 2021.

How much traffic does County Highway over Swan Creek carry?

About 525 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is County Highway over Swan Creek?

The structure is 47 ft (14.3 m) long with a longest span of 11 ft (3.4 m).

Who owns County Highway over Swan Creek?

It is owned by the County Highway Agency.