US Bridges

Girard Ridge over Sacramento River

Fair

Shasta County, California · No Data Entered · Structure no. 051459000001085

Built
1974
51 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
237 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Girard Ridge over Sacramento River is a concrete box beam or girders - multiple carrying Girard Ridge over Sacramento River in Shasta County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 237 ft (72.2 m) long and 35 ft wide.

CarriesGirard Ridge
CrossesSacramento River
LocationNo Data Entered
RouteFederal Lands Road 39N13
Coordinates41.0433, -121.5326
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length237 ft (72.2 m)
Longest span150 ft (45.7 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 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 Girard Ridge over Sacramento River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Girard Ridge over Sacramento River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does Girard Ridge over Sacramento River carry?

About 50 vehicles per day (latest count).

How long is Girard Ridge over Sacramento River?

The structure is 237 ft (72.2 m) long with a longest span of 150 ft (45.7 m) and a deck 35 ft wide.

Who owns Girard Ridge over Sacramento River?

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