US Bridges

Calle Joaquin over Prefumo Creek

Fair

San Luis Obispo County, California · 0.1 MI NE Los Osos Vly RD · Structure no. 49C0395

Built
1970
55 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
3,000
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Calle Joaquin over Prefumo Creek is a concrete continuous culvert carrying Calle Joaquin over Prefumo Creek in San Luis Obispo County, California. It was built in 1970, so it is 55 years old, older 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 3,000 vehicles a day, roughly 2% of them trucks, projected to reach 4,204 by 2045. The structure is 24 ft (7.4 m) long and 55 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCalle Joaquin
CrossesPrefumo Creek
Location0.1 MI NE Los Osos Vly RD
RouteCity Street 0
CountySan Luis Obispo County
StateCalifornia
Coordinates35.24718, -120.68158
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span12 ft (3.7 m)
Deck width55 ft (16.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2010)
Projected traffic4,204 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Calle Joaquin over Prefumo Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Calle Joaquin over Prefumo 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 2023.

How much traffic does Calle Joaquin over Prefumo Creek carry?

About 3,000 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Calle Joaquin over Prefumo Creek?

The structure is 24 ft (7.4 m) long with a longest span of 12 ft (3.7 m) and a deck 55 ft wide.

Who owns Calle Joaquin over Prefumo Creek?

It is owned by the City or Municipal Highway Agency.