US Bridges

County Highway over Yankton Slough

Good

Pierce County, Nebraska · 5.5N 3E of Pierce · Structure no. C007013935

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
25
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over Yankton Slough is a steel stringer/multi-beam or girder carrying County Highway over Yankton Slough in Pierce County, Nebraska. It was built in 2024, so it is 1 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 42 by 2042. The structure is 52 ft (15.7 m) long and 29 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesYankton Slough
Location5.5N 3E of Pierce
RouteCounty Highway 139
CountyPierce County
StateNebraska
Coordinates42.2882, -97.4653
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating46.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length52 ft (15.7 m)
Longest span50 ft (15.2 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2003)
Projected traffic42 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Yankton Slough built?

It was built in 2024, making it 1 years old in 2025.

What condition is County Highway over Yankton Slough 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 September 2024.

How much traffic does County Highway over Yankton Slough carry?

About 25 vehicles per day (2003 count).

How long is County Highway over Yankton Slough?

The structure is 52 ft (15.7 m) long with a longest span of 50 ft (15.2 m) and a deck 29 ft wide.

Who owns County Highway over Yankton Slough?

It is owned by the County Highway Agency.