US Bridges

Ranchita Canyon RD over Ranchita Creek

Fair

San Luis Obispo County, California · 0.5 MI S Cross Canyons RD · Structure no. 49C0416

Built
1996
29 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
655
2018 count
Owner
County
County Highway Agency

About this bridge

Ranchita Canyon RD over Ranchita Creek is a concrete continuous slab carrying Ranchita Canyon RD over Ranchita Creek in San Luis Obispo County, California. It was built in 1996, so it is 29 years old, younger 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 655 vehicles a day, roughly 3% of them trucks, projected to reach 348 by 2044. The structure is 68 ft (20.7 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesRanchita Canyon RD
CrossesRanchita Creek
Location0.5 MI S Cross Canyons RD
RouteCounty Highway 0
CountySan Luis Obispo County
StateCalifornia
Coordinates35.74713, -120.613
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length68 ft (20.7 m)
Longest span26 ft (7.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic655 (2018)
Projected traffic348 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Ranchita Canyon RD over Ranchita Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Ranchita Canyon RD over Ranchita 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 June 2024.

How much traffic does Ranchita Canyon RD over Ranchita Creek carry?

About 655 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Ranchita Canyon RD over Ranchita Creek?

The structure is 68 ft (20.7 m) long with a longest span of 26 ft (7.9 m) and a deck 30 ft wide.

Who owns Ranchita Canyon RD over Ranchita Creek?

It is owned by the County Highway Agency.