US Bridges

Ranchita Canyon RD over Ranchita Creek

Good

San Luis Obispo County, California · 1.7 MI N Cross Cyn RD · Structure no. 49C0417

Built
1997
28 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
63 ft
1 main span
Daily traffic
655
2018 count
Owner
County
County Highway Agency

About this bridge

Ranchita Canyon RD over Ranchita Creek is a concrete continuous tee beam carrying Ranchita Canyon RD over Ranchita Creek in San Luis Obispo County, California. It was built in 1997, so it is 28 years old, younger 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 655 vehicles a day, roughly 2% of them trucks, projected to reach 339 by 2044. The structure is 63 ft (19.1 m) long and 25 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesRanchita Canyon RD
CrossesRanchita Creek
Location1.7 MI N Cross Cyn RD
RouteCounty Highway 0
Coordinates35.76823, -120.59914
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 protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length63 ft (19.1 m)
Longest span60 ft (18.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic655 (2018)
Projected traffic339 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 1997, making it 28 years old in 2025.

What condition is Ranchita Canyon RD over Ranchita 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 June 2024.

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

About 655 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Ranchita Canyon RD over Ranchita Creek?

The structure is 63 ft (19.1 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.

Who owns Ranchita Canyon RD over Ranchita Creek?

It is owned by the County Highway Agency.