US Bridges

Shenandoah Road over South Fork Cosumnes Riv

Poor

Amador County, California · In River Pines · Structure no. 26C0014

Built
1985
40 years old
Condition
Poor
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
2,450
2014 count
Owner
County
County Highway Agency

About this bridge

Shenandoah Road over South Fork Cosumnes Riv is a prestressed concrete box beam or girders - multiple carrying Shenandoah Road over South Fork Cosumnes Riv in Amador County, California. It was built in 1985, so it is 40 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,450 vehicles a day, roughly 5% of them trucks, projected to reach 4,163 by 2042. The structure is 103 ft (31.3 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesShenandoah Road
CrossesSouth Fork Cosumnes Riv
LocationIn River Pines
RouteCounty Highway 0
Coordinates38.54612, -120.73727
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length103 ft (31.3 m)
Longest span100 ft (30.5 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,450 (2014)
Projected traffic4,163 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Shenandoah Road over South Fork Cosumnes Riv built?

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

What condition is Shenandoah Road over South Fork Cosumnes Riv in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Shenandoah Road over South Fork Cosumnes Riv carry?

About 2,450 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Shenandoah Road over South Fork Cosumnes Riv?

The structure is 103 ft (31.3 m) long with a longest span of 100 ft (30.5 m) and a deck 35 ft wide.

Who owns Shenandoah Road over South Fork Cosumnes Riv?

It is owned by the County Highway Agency.