US Bridges

Quailwood Lane over Los Berros Creek

Good

San Luis Obispo County, California · By Los Berros Road · Structure no. 49C0475

Built
1932
93 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
42 ft
1 main span
Daily traffic
10
2016 count
Owner
County
County Highway Agency

About this bridge

Quailwood Lane over Los Berros Creek is a concrete stringer/multi-beam or girder carrying Quailwood Lane over Los Berros Creek in San Luis Obispo County, California. It was built in 1932, so it is 93 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 10 vehicles a day, roughly 3% of them trucks, projected to reach 12 by 2044. The structure is 42 ft (12.9 m) long and 23 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesQuailwood Lane
CrossesLos Berros Creek
LocationBy Los Berros Road
RouteCounty Highway 0
Coordinates35.07699, -120.52484
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 rating27.9 US tons
Inventory rating16.8 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length42 ft (12.9 m)
Longest span37 ft (11.4 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2016)
Projected traffic12 by 2044
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed61.5 mi (99 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Quailwood Lane over Los Berros Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is Quailwood Lane over Los Berros 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 2024.

How much traffic does Quailwood Lane over Los Berros Creek carry?

About 10 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Quailwood Lane over Los Berros Creek?

The structure is 42 ft (12.9 m) long with a longest span of 37 ft (11.4 m) and a deck 23 ft wide.

Who owns Quailwood Lane over Los Berros Creek?

It is owned by the County Highway Agency.