US Bridges

12th ST over Coal Creek

Fair

Cass County, Nebraska · .2W 2.9N of Union · Structure no. C001305715

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
33 ft
1 main span
Daily traffic
50
2003 count
Owner
County
County Highway Agency

About this bridge

12th ST over Coal Creek is a steel culvert carrying 12th ST over Coal Creek in Cass County, Nebraska. It was built in 1975, so it is 50 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 6 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, projected to reach 85 by 2033. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Carries12th ST
CrossesCoal Creek
Location.2W 2.9N of Union
RouteCounty Highway 57
Coordinates40.8552, -95.9306
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.9 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span33 ft (10.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2003)
Projected traffic85 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 12th ST over Coal Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is 12th ST over Coal 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 12th ST over Coal Creek carry?

About 50 vehicles per day (2003 count).

How long is 12th ST over Coal Creek?

The structure is 33 ft (10.1 m) long with a longest span of 33 ft (10.1 m).

Who owns 12th ST over Coal Creek?

It is owned by the County Highway Agency.