US Bridges

Pier Ave over Oceano Beach Lagoon

Fair

San Luis Obispo County, California · 0.2 MI W of SR 1 · Structure no. 49C0414

Built
1994
31 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
63 ft
3 main spans
Daily traffic
5,037
2014 count
Owner
County
County Highway Agency

About this bridge

Pier Ave over Oceano Beach Lagoon is a concrete continuous slab carrying Pier Ave over Oceano Beach Lagoon in San Luis Obispo County, California. It was built in 1994, so it is 31 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 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 5,037 vehicles a day, roughly 3% of them trucks, projected to reach 6,944 by 2044. The structure is 63 ft (19.1 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPier Ave
CrossesOceano Beach Lagoon
Location0.2 MI W of SR 1
RouteCounty Highway 0
CountySan Luis Obispo County
StateCalifornia
Coordinates35.10643, -120.6261
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum 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 length63 ft (19.1 m)
Longest span24 ft (7.3 m)
Deck width64 ft (19.5 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,037 (2014)
Projected traffic6,944 by 2044
Trucks3%
Lanes on structure4
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 Pier Ave over Oceano Beach Lagoon built?

It was built in 1994, making it 31 years old in 2025.

What condition is Pier Ave over Oceano Beach Lagoon 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 September 2024.

How much traffic does Pier Ave over Oceano Beach Lagoon carry?

About 5,037 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is Pier Ave over Oceano Beach Lagoon?

The structure is 63 ft (19.1 m) long with a longest span of 24 ft (7.3 m) and a deck 64 ft wide.

Who owns Pier Ave over Oceano Beach Lagoon?

It is owned by the County Highway Agency.