US Bridges

Soda Creek Road over Soda Creek

FairPosted for load

Shasta County, California · 3.0 MI East of I-5 · Structure no. 06C0348

Built
1930
95 years old
Condition
Fair
inspected July 2023
Type
Truss - Thru
Steel
Length
76 ft
1 main span
Daily traffic
2
2010 count
Owner
County
County Highway Agency

About this bridge

Soda Creek Road over Soda Creek is a steel truss - thru carrying Soda Creek Road over Soda Creek in Shasta County, California. It was built in 1930, so it is 95 years old, older 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. Its operating status is: posted for load restriction.

It carries about 2 vehicles a day, roughly 1% of them trucks, projected to reach 5 by 2042. The structure is 76 ft (23.3 m) long and 18 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesSoda Creek Road
CrossesSoda Creek
Location3.0 MI East of I-5
RouteCounty Highway 0
CountyShasta County
StateCalifornia
Coordinates41.17368, -122.25358
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.4 US tons
Inventory rating12.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length76 ft (23.3 m)
Longest span76 ft (23.3 m)
Deck width18 ft (5.6 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2 (2010)
Projected traffic5 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Soda Creek Road over Soda Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Soda Creek Road over Soda Creek 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 July 2023.

How much traffic does Soda Creek Road over Soda Creek carry?

About 2 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Soda Creek Road over Soda Creek?

The structure is 76 ft (23.3 m) long with a longest span of 76 ft (23.3 m) and a deck 18 ft wide.

Who owns Soda Creek Road over Soda Creek?

It is owned by the County Highway Agency.