US Bridges

Ash ST over Little Cayucos Creek

Fair

San Luis Obispo County, California · D ST & E ST in Cayucos · Structure no. 49C0320

Built
1990
35 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
67 ft
3 main spans
Daily traffic
638
2018 count
Owner
County
County Highway Agency

About this bridge

Ash ST over Little Cayucos Creek is a concrete continuous slab carrying Ash ST over Little Cayucos Creek in San Luis Obispo County, California. It was built in 1990, so it is 35 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 638 vehicles a day, roughly 3% of them trucks, projected to reach 1,358 by 2041. The structure is 67 ft (20.4 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAsh ST
CrossesLittle Cayucos Creek
LocationD ST & E ST in Cayucos
RouteCounty Highway 0
Coordinates35.44948, -120.90293
Functional classUrban 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 inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length67 ft (20.4 m)
Longest span26 ft (7.9 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic638 (2018)
Projected traffic1,358 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Ash ST over Little Cayucos Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Ash ST over Little Cayucos 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 Ash ST over Little Cayucos Creek carry?

About 638 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Ash ST over Little Cayucos Creek?

The structure is 67 ft (20.4 m) long with a longest span of 26 ft (7.9 m) and a deck 49 ft wide.

Who owns Ash ST over Little Cayucos Creek?

It is owned by the County Highway Agency.