US Bridges

Westside Ave over Canyon Hollow Creek

Fair

Shasta County, California · 0.1 MI S Canyon Creek RD · Structure no. 06C0071

Built
1957
68 years old
Condition
Fair
inspected March 2022
Type
Slab
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
6,400
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Westside Ave over Canyon Hollow Creek is a concrete continuous slab carrying Westside Ave over Canyon Hollow Creek in Shasta County, California. It was built in 1957, so it is 68 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.

It carries about 6,400 vehicles a day, roughly 2% of them trucks, projected to reach 8,642 by 2041. The structure is 85 ft (25.9 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesWestside Ave
CrossesCanyon Hollow Creek
Location0.1 MI S Canyon Creek RD
RouteCity Street 0
CountyShasta County
StateCalifornia
Coordinates40.55247, -122.38797
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span28 ft (8.5 m)
Deck width36 ft (11.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,400 (2014)
Projected traffic8,642 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Westside Ave over Canyon Hollow Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Westside Ave over Canyon Hollow 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 March 2022.

How much traffic does Westside Ave over Canyon Hollow Creek carry?

About 6,400 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Westside Ave over Canyon Hollow Creek?

The structure is 85 ft (25.9 m) long with a longest span of 28 ft (8.5 m) and a deck 36 ft wide.

Who owns Westside Ave over Canyon Hollow Creek?

It is owned by the City or Municipal Highway Agency.