US Bridges

11N26 over South Fork Silver Creek

Good

El Dorado County, California · No Data Entered · Structure no. 050300000013679

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

11N26 over South Fork Silver Creek is a prestressed concrete box beam or girders - multiple carrying 11N26 over South Fork Silver Creek in El Dorado County, California. It was built in 2011, so it is 14 years old, younger than the California average of 54.8 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Carries11N26
CrossesSouth Fork Silver Creek
LocationNo Data Entered
RouteFederal Lands Road 11N26
Coordinates38.82167, -120.25409
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating51.5 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
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 11N26 over South Fork Silver Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is 11N26 over South Fork Silver Creek 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 2023.

How much traffic does 11N26 over South Fork Silver Creek carry?

About 50 vehicles per day (latest count).

How long is 11N26 over South Fork Silver Creek?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 16 ft wide.

Who owns 11N26 over South Fork Silver Creek?

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