US Bridges

Ash CR RD over Ash Creek Tributary

Good

Shasta County, California · 2.2 MI E Parkville RD · Structure no. 06C0313

Built
1940
85 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
28 ft
3 main spans
Daily traffic
200
2013 count
Owner
County
County Highway Agency

About this bridge

Ash CR RD over Ash Creek Tributary is a concrete continuous culvert carrying Ash CR RD over Ash Creek Tributary in Shasta County, California. It was built in 1940, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 245 by 2045. The structure is 28 ft (8.5 m) long and 23 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesAsh CR RD
CrossesAsh Creek Tributary
Location2.2 MI E Parkville RD
RouteCounty Highway 0
Coordinates40.43655, -122.16448
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 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 CR RD over Ash Creek Tributary built?

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

What condition is Ash CR RD over Ash Creek Tributary in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Ash CR RD over Ash Creek Tributary carry?

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

How long is Ash CR RD over Ash Creek Tributary?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 23 ft wide.

Who owns Ash CR RD over Ash Creek Tributary?

It is owned by the County Highway Agency.