US Bridges

Armour Ranch Road over Santa Aqueda Creek

Fair

Santa Barbara County, California · 0.4 MI E SR 154 · Structure no. 51C0074

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
103 ft
1 main span
Daily traffic
291
2014 count
Owner
County
County Highway Agency

About this bridge

Armour Ranch Road over Santa Aqueda Creek is a concrete box beam or girders - multiple carrying Armour Ranch Road over Santa Aqueda Creek in Santa Barbara County, California. It was built in 1981, so it is 44 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 291 vehicles a day, roughly 11% of them trucks, projected to reach 544 by 2042. The structure is 103 ft (31.4 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesArmour Ranch Road
CrossesSanta Aqueda Creek
Location0.4 MI E SR 154
RouteCounty Highway 0
CountySanta Barbara County
StateCalifornia
Coordinates34.5945, -120.02938
Functional classRural Major 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic291 (2014)
Projected traffic544 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway 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 Armour Ranch Road over Santa Aqueda Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Armour Ranch Road over Santa Aqueda 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 Armour Ranch Road over Santa Aqueda Creek carry?

About 291 vehicles per day (2014 count), of which roughly 11% are trucks.

How long is Armour Ranch Road over Santa Aqueda Creek?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns Armour Ranch Road over Santa Aqueda Creek?

It is owned by the County Highway Agency.