US Bridges

340th Ave over Union CR S Fk Trib

FairPosted for load

Platte County, Nebraska · 3.2N of Cornlea · Structure no. C007132930

Built
1972
53 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
35
2003 count
Owner
County
County Highway Agency

About this bridge

340th Ave over Union CR S Fk Trib is a steel stringer/multi-beam or girder carrying 340th Ave over Union CR S Fk Trib in Platte 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 35 vehicles a day, projected to reach 59 by 2033. The structure is 30 ft (9.1 m) long and 30 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
Carries340th Ave
CrossesUnion CR S Fk Trib
Location3.2N of Cornlea
RouteCounty Highway 329
CountyPlatte County
StateNebraska
Coordinates41.7275, -97.5614
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.9 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2003)
Projected traffic59 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 340th Ave over Union CR S Fk Trib built?

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

What condition is 340th Ave over Union CR S Fk Trib 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 June 2024.

How much traffic does 340th Ave over Union CR S Fk Trib carry?

About 35 vehicles per day (2003 count).

How long is 340th Ave over Union CR S Fk Trib?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns 340th Ave over Union CR S Fk Trib?

It is owned by the County Highway Agency.