US Bridges

N92 over Comer Canyon

Good

Custer County, Nebraska · 1E Ansley · Structure no. S092 30037

Built
1959
66 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
550
2018 count
Owner
State
State Highway Agency

About this bridge

N92 over Comer Canyon is a concrete culvert carrying N92 over Comer Canyon in Custer County, Nebraska. It was built in 1959, so it is 66 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 550 vehicles a day, roughly 15% of them trucks, projected to reach 770 by 2038. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 80.8 mi (130 km).

CarriesN92
CrossesComer Canyon
Location1E Ansley
RouteState Highway 92
Coordinates41.2777, -99.3661
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.
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 adequacy6: Equal to present minimum 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 loadH 15
Structure length26 ft (7.9 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 traffic550 (2018)
Projected traffic770 by 2038
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.8 mi (130 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 N92 over Comer Canyon built?

It was built in 1959, making it 66 years old in 2025.

What condition is N92 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 2024.

How much traffic does N92 over Comer Canyon carry?

About 550 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is N92 over Comer Canyon?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns N92 over Comer Canyon?

It is owned by the State Highway Agency.