US Bridges

County Road U over South Blackbird Creek

FairPosted for load

Burt County, Nebraska · 2.2N 2.6E Lyons · Structure no. C001111210

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Girder and Floorbeam System
Steel
Length
57 ft
1 main span
Daily traffic
15
2003 count
Owner
County
County Highway Agency

About this bridge

County Road U over South Blackbird Creek is a steel girder and floorbeam system carrying County Road U over South Blackbird Creek in Burt County, Nebraska. It was built in 1966, so it is 59 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 15 vehicles a day, projected to reach 25 by 2033. The structure is 57 ft (17.4 m) long and 21 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

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CarriesCounty Road U
CrossesSouth Blackbird Creek
Location2.2N 2.6E Lyons
RouteCounty Highway 112
CountyBurt County
StateNebraska
Coordinates41.974, -96.4126
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating6.6 US tons
Inventory rating4.4 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span56 ft (17.1 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2003)
Projected traffic25 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 County Road U over South Blackbird Creek built?

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

What condition is County Road U over South Blackbird 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 October 2023.

How much traffic does County Road U over South Blackbird Creek carry?

About 15 vehicles per day (2003 count).

How long is County Road U over South Blackbird Creek?

The structure is 57 ft (17.4 m) long with a longest span of 56 ft (17.1 m) and a deck 21 ft wide.

Who owns County Road U over South Blackbird Creek?

It is owned by the County Highway Agency.