US Bridges

County Highway over Branch of Swan Creek

Good

Cass County, North Dakota · 1 North 1 East Absaraka · Structure no. 000000009116170

Built
1966
59 years old
Condition
Good
inspected May 2023
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
10
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Branch of Swan Creek is a steel culvert carrying County Highway over Branch of Swan Creek in Cass County, North Dakota. It was built in 1966, so it is 59 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 10 vehicles a day, projected to reach 10 by 2039. The structure is 22 ft (6.7 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesBranch of Swan Creek
Location1 North 1 East Absaraka
RouteCounty Highway 0
Coordinates46.9923, -97.371
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.4 US tons
Inventory rating33.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length22 ft (6.7 m)
Longest span11 ft (3.4 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic10 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Branch of Swan Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is County Highway over Branch of 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 2023.

How much traffic does County Highway over Branch of Swan Creek carry?

About 10 vehicles per day (2019 count).

How long is County Highway over Branch of Swan Creek?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.4 m) and a deck 16 ft wide.

Who owns County Highway over Branch of Swan Creek?

It is owned by the County Highway Agency.