US Bridges

Cholame Valley RD over Cholame Creek

Fair

San Luis Obispo County, California · 1.4 MI NW SR 46 · Structure no. 49C0070

Built
1948
77 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
78 ft
4 main spans
Daily traffic
130
2008 count
Owner
County
County Highway Agency

About this bridge

Cholame Valley RD over Cholame Creek is a wood or timber stringer/multi-beam or girder carrying Cholame Valley RD over Cholame Creek in San Luis Obispo County, California. It was built in 1948, so it is 77 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 130 vehicles a day, roughly 3% of them trucks, projected to reach 230 by 2041. The structure is 78 ft (23.8 m) long and 22 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesCholame Valley RD
CrossesCholame Creek
Location1.4 MI NW SR 46
RouteCounty Highway 0
Coordinates35.7512, -120.29616
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionJuly 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating30 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2008)
Projected traffic230 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Cholame Valley RD over Cholame Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is Cholame Valley RD over Cholame 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 July 2023.

How much traffic does Cholame Valley RD over Cholame Creek carry?

About 130 vehicles per day (2008 count), of which roughly 3% are trucks.

How long is Cholame Valley RD over Cholame Creek?

The structure is 78 ft (23.8 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns Cholame Valley RD over Cholame Creek?

It is owned by the County Highway Agency.