US Bridges

Alamar Ave over Mission Creek

Good

Santa Barbara County, California · South of State ST · Structure no. 51C0243

Built
1930
95 years old, rebuilt 1979
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete
Length
47 ft
1 main span
Daily traffic
6,200
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alamar Ave over Mission Creek is a concrete tee beam carrying Alamar Ave over Mission Creek in Santa Barbara County, California. It was built in 1930 and reconstructed in 1979, so it is 95 years old, older 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 6,200 vehicles a day, roughly 5% of them trucks, projected to reach 11,437 by 2040. The structure is 47 ft (14.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAlamar Ave
CrossesMission Creek
LocationSouth of State ST
RouteCity Street 0
CountySanta Barbara County
StateCalifornia
Coordinates34.43768, -119.72469
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating50 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length47 ft (14.2 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2010)
Projected traffic11,437 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Alamar Ave over Mission Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1979.

What condition is Alamar Ave over Mission 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 March 2023.

How much traffic does Alamar Ave over Mission Creek carry?

About 6,200 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Alamar Ave over Mission Creek?

The structure is 47 ft (14.2 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns Alamar Ave over Mission Creek?

It is owned by the City or Municipal Highway Agency.