US Bridges

US183 over Comer Canyon

Good

Custer County, Nebraska · 0S Ansley · Structure no. S183 08934

Built
2019
6 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
830
2018 count
Owner
State
State Highway Agency

About this bridge

US183 over Comer Canyon is a concrete culvert carrying US183 over Comer Canyon in Custer County, Nebraska. It was built in 2019, so it is 6 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 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 830 vehicles a day, roughly 15% of them trucks, projected to reach 1,079 by 2038. The structure is 36 ft (11 m) long. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesUS183
CrossesComer Canyon
Location0S Ansley
RouteU.S. Route 183
CountyCuster County
StateNebraska
Coordinates41.2785, -99.3756
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating48.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length36 ft (11 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic830 (2018)
Projected traffic1,079 by 2038
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 Comer Canyon built?

It was built in 2019, making it 6 years old in 2025.

What condition is US183 over Comer Canyon 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 2022.

How much traffic does US183 over Comer Canyon carry?

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

How long is US183 over Comer Canyon?

The structure is 36 ft (11 m) long with a longest span of 12 ft (3.7 m).

Who owns US183 over Comer Canyon?

It is owned by the State Highway Agency.