US Bridges

County Gravel over Little Blue River

Fair

Adams County, Nebraska · 14010 S. Antioch Ave · Structure no. C000104710

Built
1974
51 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
3 main spans
Daily traffic
40
2003 count
Owner
County
County Highway Agency

About this bridge

County Gravel over Little Blue River is a steel continuous stringer/multi-beam or girder carrying County Gravel over Little Blue River in Adams County, Nebraska. It was built in 1974, so it is 51 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 5 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 40 vehicles a day, projected to reach 68 by 2042. The structure is 231 ft (70.4 m) long and 26 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesCounty Gravel
CrossesLittle Blue River
Location14010 S. Antioch Ave
RouteCounty Highway 47
CountyAdams County
StateNebraska
Coordinates40.4129, -98.2972
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length231 ft (70.4 m)
Longest span90 ft (27.4 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2003)
Projected traffic68 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 Gravel over Little Blue River built?

It was built in 1974, making it 51 years old in 2025.

What condition is County Gravel over Little Blue River 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 September 2023.

How much traffic does County Gravel over Little Blue River carry?

About 40 vehicles per day (2003 count).

How long is County Gravel over Little Blue River?

The structure is 231 ft (70.4 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns County Gravel over Little Blue River?

It is owned by the County Highway Agency.