US Bridges

US281 over Ponca Creek

Fair

Boyd County, Nebraska · In Spencer · Structure no. S281 21521

Built
1958
67 years old, rebuilt 1986
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
171 ft
3 main spans
Daily traffic
845
2018 count
Owner
State
State Highway Agency

About this bridge

US281 over Ponca Creek is a steel continuous stringer/multi-beam or girder carrying US281 over Ponca Creek in Boyd County, Nebraska. It was built in 1958 and reconstructed in 1986, so it is 67 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 845 vehicles a day, roughly 22% of them trucks, projected to reach 1,099 by 2038. The structure is 171 ft (52.1 m) long and 40 ft wide. If it were closed, the detour would be 68.4 mi (110 km).

CarriesUS281
CrossesPonca Creek
LocationIn Spencer
RouteU.S. Route 281
Coordinates42.8864, -98.6981
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating27.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length171 ft (52.1 m)
Longest span75 ft (22.9 m)
Deck width40 ft (12.1 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic845 (2018)
Projected traffic1,099 by 2038
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed68.4 mi (110 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US281 over Ponca Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1986.

What condition is US281 over Ponca Creek 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 March 2023.

How much traffic does US281 over Ponca Creek carry?

About 845 vehicles per day (2018 count), of which roughly 22% are trucks.

How long is US281 over Ponca Creek?

The structure is 171 ft (52.1 m) long with a longest span of 75 ft (22.9 m) and a deck 40 ft wide.

Who owns US281 over Ponca Creek?

It is owned by the State Highway Agency.