US Bridges

State Route 1 over Toro Creek

Good

San Luis Obispo County, California · 05-SLO-001-32.61 · Structure no. 49 0275R

Built
2023
2 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
7,300
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over Toro Creek is a prestressed concrete continuous slab carrying State Route 1 over Toro Creek in San Luis Obispo County, California. It was built in 2023, so it is 2 years old, younger 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 7,300 vehicles a day, roughly 4% of them trucks, projected to reach 9,500 by 2042. The structure is 133 ft (40.6 m) long and 44 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesState Route 1
CrossesToro Creek
Location05-SLO-001-32.61
RouteState Highway 1
Coordinates35.41238, -120.87272
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length133 ft (40.6 m)
Longest span44 ft (13.3 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2019)
Projected traffic9,500 by 2042
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 1 over Toro Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is State Route 1 over Toro 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 September 2023.

How much traffic does State Route 1 over Toro Creek carry?

About 7,300 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is State Route 1 over Toro Creek?

The structure is 133 ft (40.6 m) long with a longest span of 44 ft (13.3 m) and a deck 44 ft wide.

Who owns State Route 1 over Toro Creek?

It is owned by the State Highway Agency.