US Bridges

Via Carta over Brizzolara Creek

Fair

San Luis Obispo County, California · Cal Poly Campus · Structure no. 49I0007

Built
1949
76 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
500
2006 count
Owner
State
Other State Agency

About this bridge

Via Carta over Brizzolara Creek is a concrete continuous slab carrying Via Carta over Brizzolara Creek in San Luis Obispo County, California. It was built in 1949, so it is 76 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 737 by 2045. The structure is 34 ft (10.4 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesVia Carta
CrossesBrizzolara Creek
LocationCal Poly Campus
RouteCounty Highway 0
CountySan Luis Obispo County
StateCalifornia
Coordinates35.30468, -120.66278
Functional classRural 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span22 ft (6.7 m)
Deck width28 ft (8.6 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2006)
Projected traffic737 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Via Carta over Brizzolara Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is Via Carta over Brizzolara 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 Via Carta over Brizzolara Creek carry?

About 500 vehicles per day (2006 count), of which roughly 1% are trucks.

How long is Via Carta over Brizzolara Creek?

The structure is 34 ft (10.4 m) long with a longest span of 22 ft (6.7 m) and a deck 28 ft wide.

Who owns Via Carta over Brizzolara Creek?

It is owned by the Other State Agency.