US Bridges

Riverside Road over Sacramento River

Fair

Shasta County, California · 0.1 MI E/O I-5 Front RD · Structure no. 06C0017

Built
1940
85 years old, rebuilt 1957
Condition
Fair
inspected July 2023
Type
Girder and Floorbeam System
Steel
Length
121 ft
1 main span
Daily traffic
234
2013 count
Owner
County
County Highway Agency

About this bridge

Riverside Road over Sacramento River is a steel girder and floorbeam system carrying Riverside Road over Sacramento River in Shasta County, California. It was built in 1940 and reconstructed in 1957, so it is 85 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 5 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 234 vehicles a day, roughly 2% of them trucks, projected to reach 500 by 2042. The structure is 121 ft (36.9 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRiverside Road
CrossesSacramento River
Location0.1 MI E/O I-5 Front RD
RouteCounty Highway 0
CountyShasta County
StateCalifornia
Coordinates41.14869, -122.31129
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating45.3 US tons
Inventory rating27.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span85 ft (25.9 m)
Deck width18 ft (5.5 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2013)
Projected traffic500 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Riverside Road over Sacramento River built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1957.

What condition is Riverside Road 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 July 2023.

How much traffic does Riverside Road over Sacramento River carry?

About 234 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Riverside Road over Sacramento River?

The structure is 121 ft (36.9 m) long with a longest span of 85 ft (25.9 m) and a deck 18 ft wide.

Who owns Riverside Road over Sacramento River?

It is owned by the County Highway Agency.