US Bridges

Ash Creek Road over Ash Creek Tributary

Fair

Shasta County, California · 1.8 MI E Parkville RD · Structure no. 06C0291

Built
1945
80 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
200
2013 count
Owner
County
County Highway Agency

About this bridge

Ash Creek Road over Ash Creek Tributary is a concrete continuous slab carrying Ash Creek Road over Ash Creek Tributary in Shasta County, California. It was built in 1945, so it is 80 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 245 by 2045. The structure is 25 ft (7.6 m) long and 21 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesAsh Creek Road
CrossesAsh Creek Tributary
Location1.8 MI E Parkville RD
RouteCounty Highway 0
Coordinates40.43403, -122.16639
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width21 ft (6.5 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2013)
Projected traffic245 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Ash Creek Road over Ash Creek Tributary built?

It was built in 1945, making it 80 years old in 2025.

What condition is Ash Creek Road over Ash Creek Tributary 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 September 2024.

How much traffic does Ash Creek Road over Ash Creek Tributary carry?

About 200 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Ash Creek Road over Ash Creek Tributary?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 21 ft wide.

Who owns Ash Creek Road over Ash Creek Tributary?

It is owned by the County Highway Agency.