US Bridges

Irr/Township Road over South Blackbird Creek

FairPosted for load

Burt County, Nebraska · 4E 5.2N Lyons · Structure no. C001121935

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
30
2003 count
Owner
County
County Highway Agency

About this bridge

Irr/Township Road over South Blackbird Creek is a steel stringer/multi-beam or girder carrying Irr/Township Road over South Blackbird Creek in Burt County, Nebraska. It was built in 1972, so it is 53 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 30 vehicles a day, projected to reach 42 by 2033. The structure is 80 ft (24.4 m) long and 23 ft wide. If it were closed, the detour would be 43.5 mi (70 km).

Location

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CarriesIrr/Township Road
CrossesSouth Blackbird Creek
Location4E 5.2N Lyons
RouteCounty Highway 219
CountyBurt County
StateNebraska
Coordinates42.0133, -96.385
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating34.2 US tons
Inventory rating19.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length80 ft (24.4 m)
Longest span79 ft (24.1 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2003)
Projected traffic42 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed43.5 mi (70 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 Irr/Township Road over South Blackbird Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Irr/Township Road 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 September 2024.

How much traffic does Irr/Township Road over South Blackbird Creek carry?

About 30 vehicles per day (2003 count).

How long is Irr/Township Road over South Blackbird Creek?

The structure is 80 ft (24.4 m) long with a longest span of 79 ft (24.1 m) and a deck 23 ft wide.

Who owns Irr/Township Road over South Blackbird Creek?

It is owned by the County Highway Agency.