US Bridges

Hospital Drive over Atascadero Creek

Fair

San Luis Obispo County, California · 0.1MI SW Intxcapistrano · Structure no. 49C0431

Built
1921
104 years old, rebuilt 1955
Condition
Fair
inspected May 2024
Type
Arch - Deck
Concrete
Length
61 ft
1 main span
Daily traffic
2,700
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hospital Drive over Atascadero Creek is a concrete arch - deck carrying Hospital Drive over Atascadero Creek in San Luis Obispo County, California. It was built in 1921 and reconstructed in 1955, so it is 104 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 5 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 2,700 vehicles a day, roughly 4% of them trucks, projected to reach 3,033 by 2044. The structure is 61 ft (18.5 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHospital Drive
CrossesAtascadero Creek
Location0.1MI SW Intxcapistrano
RouteCity Street 0
CountySan Luis Obispo County
StateCalifornia
Coordinates35.49274, -120.66519
Functional classUrban 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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length61 ft (18.5 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2006)
Projected traffic3,033 by 2044
Trucks4%
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hospital Drive over Atascadero Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1955.

What condition is Hospital Drive over Atascadero 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 Hospital Drive over Atascadero Creek carry?

About 2,700 vehicles per day (2006 count), of which roughly 4% are trucks.

How long is Hospital Drive over Atascadero Creek?

The structure is 61 ft (18.5 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Hospital Drive over Atascadero Creek?

It is owned by the City or Municipal Highway Agency.