US Bridges

Broad ST over San Luis Obispo Creek

Fair

San Luis Obispo County, California · 0.1 MI North of Higuera · Structure no. 49C0382

Built
1911
114 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
40 ft
1 main span
Daily traffic
3,000
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Broad ST over San Luis Obispo Creek is a concrete tee beam carrying Broad ST over San Luis Obispo Creek in San Luis Obispo County, California. It was built in 1911, so it is 114 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 3% of them trucks, projected to reach 6,307 by 2045. The structure is 40 ft (12.2 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBroad ST
CrossesSan Luis Obispo Creek
Location0.1 MI North of Higuera
RouteCity Street 0
CountySan Luis Obispo County
StateCalifornia
Coordinates35.27926, -120.66476
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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating28.2 US tons
Inventory rating17.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span36 ft (11 m)
Deck width55 ft (16.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2010)
Projected traffic6,307 by 2045
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

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 Broad ST over San Luis Obispo Creek built?

It was built in 1911, making it 114 years old in 2025.

What condition is Broad ST over San Luis Obispo 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 March 2023.

How much traffic does Broad ST over San Luis Obispo Creek carry?

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

How long is Broad ST over San Luis Obispo Creek?

The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11 m) and a deck 55 ft wide.

Who owns Broad ST over San Luis Obispo Creek?

It is owned by the City or Municipal Highway Agency.