US Bridges

US183 over Middle Loup River

Good

Custer County, Nebraska · 1S Sargent · Structure no. S183 11375

Built
2015
10 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
405 ft
3 main spans
Daily traffic
1,275
2018 count
Owner
State
State Highway Agency

About this bridge

US183 over Middle Loup River is a prestressed concrete continuous stringer/multi-beam or girder carrying US183 over Middle Loup River in Custer County, Nebraska. It was built in 2015, so it is 10 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,275 vehicles a day, roughly 15% of them trucks, projected to reach 1,658 by 2038. The structure is 405 ft (123.4 m) long and 39 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesUS183
CrossesMiddle Loup River
Location1S Sargent
RouteU.S. Route 183
Coordinates41.625, -99.367
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length405 ft (123.4 m)
Longest span150 ft (45.7 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,275 (2018)
Projected traffic1,658 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 SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US183 over Middle Loup River built?

It was built in 2015, making it 10 years old in 2025.

What condition is US183 over Middle Loup River 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 November 2024.

How much traffic does US183 over Middle Loup River carry?

About 1,275 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is US183 over Middle Loup River?

The structure is 405 ft (123.4 m) long with a longest span of 150 ft (45.7 m) and a deck 39 ft wide.

Who owns US183 over Middle Loup River?

It is owned by the State Highway Agency.