US Bridges

Las Pilitas RD over Pilitas Creek

Good

San Luis Obispo County, California · 3.8 MI E Santa Marg RD · Structure no. 49C0192

Built
1930
95 years old, rebuilt 1954
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
24 ft
2 main spans
Daily traffic
262
2006 count
Owner
County
County Highway Agency

About this bridge

Las Pilitas RD over Pilitas Creek is a steel continuous stringer/multi-beam or girder carrying Las Pilitas RD over Pilitas Creek in San Luis Obispo County, California. It was built in 1930 and reconstructed in 1954, 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 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 262 vehicles a day, roughly 2% of them trucks, projected to reach 592 by 2044. The structure is 24 ft (7.4 m) long and 18 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesLas Pilitas RD
CrossesPilitas Creek
Location3.8 MI E Santa Marg RD
RouteCounty Highway 0
Coordinates35.35824, -120.48189
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length24 ft (7.4 m)
Longest span12 ft (3.6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic262 (2006)
Projected traffic592 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Las Pilitas RD over Pilitas Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1954.

What condition is Las Pilitas RD over Pilitas 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 August 2022.

How much traffic does Las Pilitas RD over Pilitas Creek carry?

About 262 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is Las Pilitas RD over Pilitas Creek?

The structure is 24 ft (7.4 m) long with a longest span of 12 ft (3.6 m) and a deck 18 ft wide.

Who owns Las Pilitas RD over Pilitas Creek?

It is owned by the County Highway Agency.