US Bridges

US183/US383 over Prairie Dog Creek

Good

Harlan County, Nebraska · 6S Alma · Structure no. S183 00064

Built
1950
75 years old, rebuilt 1991
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
198 ft
3 main spans
Daily traffic
2,015
2018 count
Owner
State
State Highway Agency

About this bridge

US183/US383 over Prairie Dog Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US183/US383 over Prairie Dog Creek in Harlan County, Nebraska. It was built in 1950 and reconstructed in 1991, so it is 75 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,015 vehicles a day, roughly 25% of them trucks, projected to reach 2,620 by 2038. The structure is 198 ft (60.4 m) long and 46 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesUS183/US383
CrossesPrairie Dog Creek
Location6S Alma
RouteU.S. Route 183
Coordinates40.0133, -99.3673
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length198 ft (60.4 m)
Longest span71 ft (21.6 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,015 (2018)
Projected traffic2,620 by 2038
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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/US383 over Prairie Dog Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1991.

What condition is US183/US383 over Prairie Dog Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does US183/US383 over Prairie Dog Creek carry?

About 2,015 vehicles per day (2018 count), of which roughly 25% are trucks.

How long is US183/US383 over Prairie Dog Creek?

The structure is 198 ft (60.4 m) long with a longest span of 71 ft (21.6 m) and a deck 46 ft wide.

Who owns US183/US383 over Prairie Dog Creek?

It is owned by the State Highway Agency.