US Bridges

US 95A over Carson Rvr Overflow

Good

Lyon County, Nevada · North of Yerington · Structure no. B1151

Built
1964
61 years old
Condition
Good
inspected April 2021
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,900
2017 count
Owner
State
State Highway Agency

About this bridge

US 95A over Carson Rvr Overflow is a concrete culvert carrying US 95A over Carson Rvr Overflow in Lyon County, Nevada. It was built in 1964, so it is 61 years old, older than the Nevada average of 36.4 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 2,900 vehicles a day, roughly 11% of them trucks, projected to reach 3,500 by 2040. The structure is 23 ft (7 m) long. If it were closed, the detour would be 41 mi (66 km).

CarriesUS 95A
CrossesCarson Rvr Overflow
LocationNorth of Yerington
RouteU.S. Route 95
StateNevada
Coordinates39.29121, -119.25046
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 inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 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 traffic2,900 (2017)
Projected traffic3,500 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41 mi (66 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 US 95A over Carson Rvr Overflow built?

It was built in 1964, making it 61 years old in 2025.

What condition is US 95A over Carson Rvr Overflow 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 April 2021.

How much traffic does US 95A over Carson Rvr Overflow carry?

About 2,900 vehicles per day (2017 count), of which roughly 11% are trucks.

How long is US 95A over Carson Rvr Overflow?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns US 95A over Carson Rvr Overflow?

It is owned by the State Highway Agency.