US Bridges

W Donovan Road over Blosser Channel

Fair

Santa Barbara County, California · At N Blosser Road · Structure no. 51C0365

Built
2005
20 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
200
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Donovan Road over Blosser Channel is a concrete slab carrying W Donovan Road over Blosser Channel in Santa Barbara County, California. It was built in 2005, so it is 20 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 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 1% of them trucks, projected to reach 510 by 2042. The structure is 36 ft (11 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesW Donovan Road
CrossesBlosser Channel
LocationAt N Blosser Road
RouteCity Street 0
CountySanta Barbara County
StateCalifornia
Coordinates34.96768, -120.45327
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
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 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

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (11 m)
Longest span29 ft (8.9 m)
Deck width78 ft (23.7 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2011)
Projected traffic510 by 2042
Trucks1%
Lanes on structure4
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 W Donovan Road over Blosser Channel built?

It was built in 2005, making it 20 years old in 2025.

What condition is W Donovan Road over Blosser Channel 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 January 2025.

How much traffic does W Donovan Road over Blosser Channel carry?

About 200 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is W Donovan Road over Blosser Channel?

The structure is 36 ft (11 m) long with a longest span of 29 ft (8.9 m) and a deck 78 ft wide.

Who owns W Donovan Road over Blosser Channel?

It is owned by the City or Municipal Highway Agency.