US Bridges

4 TH ST over Carpinteria Creek

Fair

Santa Barbara County, California · In Carp. St. Park · Structure no. 51P0002

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete Continuous
Length
145 ft
4 main spans
Daily traffic
200
1982 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

4 TH ST over Carpinteria Creek is a concrete continuous tee beam carrying 4 TH ST over Carpinteria Creek in Santa Barbara County, California. It was built in 1967, so it is 58 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 546 by 2041. The structure is 145 ft (44.2 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
Carries4 TH ST
CrossesCarpinteria Creek
LocationIn Carp. St. Park
RouteCity Street 0
CountySanta Barbara County
StateCalifornia
Coordinates34.39111, -119.51871
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length145 ft (44.2 m)
Longest span54 ft (16.6 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1982)
Projected traffic546 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 4 TH ST over Carpinteria Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is 4 TH ST over Carpinteria 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 November 2023.

How much traffic does 4 TH ST over Carpinteria Creek carry?

About 200 vehicles per day (1982 count), of which roughly 2% are trucks.

How long is 4 TH ST over Carpinteria Creek?

The structure is 145 ft (44.2 m) long with a longest span of 54 ft (16.6 m) and a deck 29 ft wide.

Who owns 4 TH ST over Carpinteria Creek?

It is owned by the State Park, Forest, or Reservation Agency.