US Bridges

County Highway over Coon Branch

Fair

York County, Nebraska · 3W 1.7S Thayer · Structure no. C009322915

Built
1924
101 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
2 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

County Highway over Coon Branch is a steel stringer/multi-beam or girder carrying County Highway over Coon Branch in York County, Nebraska. It was built in 1924, so it is 101 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 50 vehicles a day, roughly 25% of them trucks, projected to reach 70 by 2039. The structure is 70 ft (21.3 m) long and 20 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

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CarriesCounty Highway
CrossesCoon Branch
Location3W 1.7S Thayer
RouteCounty Highway 229
CountyYork County
StateNebraska
Coordinates40.9402, -97.559
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.3 US tons
Inventory rating34.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span35 ft (10.7 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic70 by 2039
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 County Highway over Coon Branch built?

It was built in 1924, making it 101 years old in 2025.

What condition is County Highway over Coon Branch 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 May 2024.

How much traffic does County Highway over Coon Branch carry?

About 50 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is County Highway over Coon Branch?

The structure is 70 ft (21.3 m) long with a longest span of 35 ft (10.7 m) and a deck 20 ft wide.

Who owns County Highway over Coon Branch?

It is owned by the County Highway Agency.