US Bridges

US83 over Dismal River

Good

Thomas County, Nebraska · 15S Thedford · Structure no. S083 13350

Built
1979
46 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
288 ft
3 main spans
Daily traffic
1,135
2018 count
Owner
State
State Highway Agency

About this bridge

US83 over Dismal River is a steel continuous stringer/multi-beam or girder carrying US83 over Dismal River in Thomas County, Nebraska. It was built in 1979, so it is 46 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 1,135 vehicles a day, roughly 19% of them trucks, projected to reach 1,476 by 2038. The structure is 288 ft (87.8 m) long and 38 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesUS83
CrossesDismal River
Location15S Thedford
RouteU.S. Route 83
Coordinates41.7793, -100.5304
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating27.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length288 ft (87.8 m)
Longest span111 ft (33.8 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,135 (2018)
Projected traffic1,476 by 2038
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 US83 over Dismal River built?

It was built in 1979, making it 46 years old in 2025.

What condition is US83 over Dismal 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 2023.

How much traffic does US83 over Dismal River carry?

About 1,135 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is US83 over Dismal River?

The structure is 288 ft (87.8 m) long with a longest span of 111 ft (33.8 m) and a deck 38 ft wide.

Who owns US83 over Dismal River?

It is owned by the State Highway Agency.