US Bridges

US183 over Middle Loup River Trib

Good

Custer County, Nebraska · 1N Sargent · Structure no. S183 11579

Built
1952
73 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,125
2018 count
Owner
State
State Highway Agency

About this bridge

US183 over Middle Loup River Trib is a concrete culvert carrying US183 over Middle Loup River Trib in Custer County, Nebraska. It was built in 1952, so it is 73 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 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 1,125 vehicles a day, roughly 16% of them trucks, projected to reach 1,519 by 2038. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesUS183
CrossesMiddle Loup River Trib
Location1N Sargent
RouteU.S. Route 183
Coordinates41.6547, -99.3657
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,125 (2018)
Projected traffic1,519 by 2038
Trucks16%
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

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 over Middle Loup River Trib built?

It was built in 1952, making it 73 years old in 2025.

What condition is US183 over Middle Loup River Trib 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 Trib carry?

About 1,125 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is US183 over Middle Loup River Trib?

The structure is 27 ft (8.2 m) long with a longest span of 10 ft (3 m).

Who owns US183 over Middle Loup River Trib?

It is owned by the State Highway Agency.