US Bridges

Castillo Street over Mission Creek

Fair

Santa Barbara County, California · At Canon Perdido · Structure no. 51C0145

Built
1963
62 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
85 ft
1 main span
Daily traffic
3,750
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Castillo Street over Mission Creek is a concrete tee beam carrying Castillo Street over Mission Creek in Santa Barbara County, California. It was built in 1963, so it is 62 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 3,750 vehicles a day, roughly 1% of them trucks, projected to reach 5,702 by 2043. The structure is 85 ft (25.9 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCastillo Street
CrossesMission Creek
LocationAt Canon Perdido
RouteCity Street 0
Coordinates34.41598, -119.70457
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span30 ft (9.1 m)
Deck width60 ft (18.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,750 (2011)
Projected traffic5,702 by 2043
Trucks1%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Castillo Street over Mission Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Castillo Street over Mission 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 Castillo Street over Mission Creek carry?

About 3,750 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Castillo Street over Mission Creek?

The structure is 85 ft (25.9 m) long with a longest span of 30 ft (9.1 m) and a deck 60 ft wide.

Who owns Castillo Street over Mission Creek?

It is owned by the City or Municipal Highway Agency.