US Bridges

Platina RD over Wilson Creek Tributary

Fair

Shasta County, California · 13 MI W Gas Pt RD · Structure no. 06C0118

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
140
2013 count
Owner
County
County Highway Agency

About this bridge

Platina RD over Wilson Creek Tributary is a concrete continuous culvert carrying Platina RD over Wilson Creek Tributary in Shasta County, California. It was built in 1958, so it is 67 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 140 vehicles a day, roughly 5% of them trucks, projected to reach 375 by 2044. The structure is 31 ft (9.4 m) long and 31 ft wide. If it were closed, the detour would be 70.2 mi (113 km).

CarriesPlatina RD
CrossesWilson Creek Tributary
Location13 MI W Gas Pt RD
RouteCounty Highway 0
Coordinates40.42102, -122.74088
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span8 ft (2.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2013)
Projected traffic375 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed70.2 mi (113 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 Platina RD over Wilson Creek Tributary built?

It was built in 1958, making it 67 years old in 2025.

What condition is Platina RD over Wilson 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 Platina RD over Wilson Creek Tributary carry?

About 140 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Platina RD over Wilson Creek Tributary?

The structure is 31 ft (9.4 m) long with a longest span of 8 ft (2.4 m) and a deck 31 ft wide.

Who owns Platina RD over Wilson Creek Tributary?

It is owned by the County Highway Agency.