US Bridges

Adams Central Ave. over Little Blue Riv Ovrflo

FairPosted for load

Adams County, Nebraska · 2S 1W Ayr · Structure no. C000102905

Built
1930
95 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
520
2019 count
Owner
County
County Highway Agency

About this bridge

Adams Central Ave. over Little Blue Riv Ovrflo is a steel stringer/multi-beam or girder carrying Adams Central Ave. over Little Blue Riv Ovrflo in Adams County, Nebraska. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 520 vehicles a day, roughly 10% of them trucks, projected to reach 700 by 2042. The structure is 42 ft (12.8 m) long and 17 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

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CarriesAdams Central Ave.
CrossesLittle Blue Riv Ovrflo
Location2S 1W Ayr
RouteCounty Highway 29
CountyAdams County
StateNebraska
Coordinates40.4092, -98.4598
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating15.4 US tons
Inventory rating8.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2019)
Projected traffic700 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRelief for waterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Adams Central Ave. over Little Blue Riv Ovrflo built?

It was built in 1930, making it 95 years old in 2025.

What condition is Adams Central Ave. over Little Blue Riv Ovrflo 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 October 2024.

How much traffic does Adams Central Ave. over Little Blue Riv Ovrflo carry?

About 520 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Adams Central Ave. over Little Blue Riv Ovrflo?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 17 ft wide.

Who owns Adams Central Ave. over Little Blue Riv Ovrflo?

It is owned by the County Highway Agency.