US Bridges

US183/N2 over Mud Creek

Fair

Custer County, Nebraska · 1S Ansley · Structure no. S183 08867

Built
1936
89 years old, rebuilt 1978
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
830
2018 count
Owner
State
State Highway Agency

About this bridge

US183/N2 over Mud Creek is a steel continuous stringer/multi-beam or girder carrying US183/N2 over Mud Creek in Custer County, Nebraska. It was built in 1936 and reconstructed in 1978, so it is 89 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 830 vehicles a day, roughly 15% of them trucks, projected to reach 1,328 by 2038. The structure is 151 ft (46 m) long and 42 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesUS183/N2
CrossesMud Creek
Location1S Ansley
RouteU.S. Route 183
Coordinates41.2761, -99.3808
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic830 (2018)
Projected traffic1,328 by 2038
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US183/N2 over Mud Creek built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1978.

What condition is US183/N2 over Mud 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 November 2024.

How much traffic does US183/N2 over Mud Creek carry?

About 830 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is US183/N2 over Mud Creek?

The structure is 151 ft (46 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns US183/N2 over Mud Creek?

It is owned by the State Highway Agency.