US Bridges

Ponderosa RD over South Fork Bear Creek

Good

Shasta County, California · 2.0 MI N of S.R. 44 · Structure no. 06C0303

Built
1930
95 years old, rebuilt 1960
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
45 ft
2 main spans
Daily traffic
90
2013 count
Owner
County
County Highway Agency

About this bridge

Ponderosa RD over South Fork Bear Creek is a concrete continuous slab carrying Ponderosa RD over South Fork Bear Creek in Shasta County, California. It was built in 1930 and reconstructed in 1960, 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 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 90 vehicles a day, roughly 5% of them trucks, projected to reach 115 by 2045. The structure is 45 ft (13.7 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPonderosa RD
CrossesSouth Fork Bear Creek
Location2.0 MI N of S.R. 44
RouteCounty Highway 0
Coordinates40.53307, -121.93094
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span22 ft (6.7 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2013)
Projected traffic115 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-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 Ponderosa RD over South Fork Bear Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1960.

What condition is Ponderosa RD over South Fork Bear Creek 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 Ponderosa RD over South Fork Bear Creek carry?

About 90 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Ponderosa RD over South Fork Bear Creek?

The structure is 45 ft (13.7 m) long with a longest span of 22 ft (6.7 m) and a deck 29 ft wide.

Who owns Ponderosa RD over South Fork Bear Creek?

It is owned by the County Highway Agency.