US Bridges

Crother RD over Wooley Creek

Fair

Placer County, California · At Placer Hills RD · Structure no. 19C0147

Built
1930
95 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
320
1985 count
Owner
County
County Highway Agency

About this bridge

Crother RD over Wooley Creek is a concrete slab carrying Crother RD over Wooley Creek in Placer County, California. It was built in 1930, 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 fair condition with a lowest component rating of 5 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 320 vehicles a day, roughly 2% of them trucks, projected to reach 762 by 2042. The structure is 22 ft (6.8 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCrother RD
CrossesWooley Creek
LocationAt Placer Hills RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates39.01509, -121.00383
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.8 m)
Longest span21 ft (6.5 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (1985)
Projected traffic762 by 2042
Trucks2%
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 Crother RD over Wooley Creek built?

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

What condition is Crother RD over Wooley 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 May 2024.

How much traffic does Crother RD over Wooley Creek carry?

About 320 vehicles per day (1985 count), of which roughly 2% are trucks.

How long is Crother RD over Wooley Creek?

The structure is 22 ft (6.8 m) long with a longest span of 21 ft (6.5 m) and a deck 20 ft wide.

Who owns Crother RD over Wooley Creek?

It is owned by the County Highway Agency.