US Bridges

Sweetwater Road over East Walker River

Good

Lyon County, Nevada · NW of Sonoma · Structure no. 041702000001162

Built
1985
40 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
20
1991 count
Owner
Federal
U.S. Forest Service

About this bridge

Sweetwater Road over East Walker River is a prestressed concrete tee beam carrying Sweetwater Road over East Walker River in Lyon County, Nevada. It was built in 1985, so it is 40 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 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 20 vehicles a day, projected to reach 30 by 2045. The structure is 75 ft (22.9 m) long and 28 ft wide.

CarriesSweetwater Road
CrossesEast Walker River
LocationNW of Sonoma
RouteFederal Lands Road 20028
StateNevada
Coordinates38.38373, -118.93521
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating—
Inventory rating—

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length75 ft (22.9 m)
Longest span70 ft (21.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1991)
Projected traffic30 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sweetwater Road over East Walker River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Sweetwater Road over East Walker 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 September 2024.

How much traffic does Sweetwater Road over East Walker River carry?

About 20 vehicles per day (1991 count).

How long is Sweetwater Road over East Walker River?

The structure is 75 ft (22.9 m) long with a longest span of 70 ft (21.3 m) and a deck 28 ft wide.

Who owns Sweetwater Road over East Walker River?

It is owned by the U.S. Forest Service.