US Bridges

Hollister Road over Chorro Creek

Fair

San Luis Obispo County, California · Cuesta College · Structure no. 49I0008

Built
2010
15 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
158 ft
1 main span
Daily traffic
1,500
2002 count
Owner
State
Other State Agency

About this bridge

Hollister Road over Chorro Creek is a prestressed concrete box beam or girders - multiple carrying Hollister Road over Chorro Creek in San Luis Obispo County, California. It was built in 2010, so it is 15 years old, younger 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 1,500 vehicles a day, roughly 1% of them trucks, projected to reach 2,559 by 2046. The structure is 158 ft (48.2 m) long and 52 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesHollister Road
CrossesChorro Creek
LocationCuesta College
Coordinates35.32424, -120.73704
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length158 ft (48.2 m)
Longest span153 ft (46.6 m)
Deck width52 ft (16 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2002)
Projected traffic2,559 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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 Hollister Road over Chorro Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Hollister Road over Chorro 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 2024.

How much traffic does Hollister Road over Chorro Creek carry?

About 1,500 vehicles per day (2002 count), of which roughly 1% are trucks.

How long is Hollister Road over Chorro Creek?

The structure is 158 ft (48.2 m) long with a longest span of 153 ft (46.6 m) and a deck 52 ft wide.

Who owns Hollister Road over Chorro Creek?

It is owned by the Other State Agency.