US Bridges

Black Road over UP RR & AMTRAK

Fair

Santa Barbara County, California · 2.0 MI N Associated RD · Structure no. 51C0035

Built
1943
82 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
229 ft
1 main span
Daily traffic
1,003
2009 count
Owner
County
County Highway Agency

About this bridge

Black Road over UP RR & AMTRAK is a steel stringer/multi-beam or girder carrying Black Road over UP RR & AMTRAK in Santa Barbara County, California. It was built in 1943, so it is 82 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 6 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 1,003 vehicles a day, roughly 6% of them trucks, projected to reach 4,011 by 2042. The structure is 229 ft (69.7 m) long and 31 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesBlack Road
CrossesUP RR & AMTRAK
Location2.0 MI N Associated RD
RouteCounty Highway 0
CountySanta Barbara County
StateCalifornia
Coordinates34.8756, -120.51422
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.7 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+8 approach)
Design loadUnknown
Structure length229 ft (69.7 m)
Longest span71 ft (21.6 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,003 (2009)
Projected traffic4,011 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed24.9 mi (40 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Black Road over UP RR & AMTRAK built?

It was built in 1943, making it 82 years old in 2025.

What condition is Black Road over UP RR & AMTRAK 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 Black Road over UP RR & AMTRAK carry?

About 1,003 vehicles per day (2009 count), of which roughly 6% are trucks.

How long is Black Road over UP RR & AMTRAK?

The structure is 229 ft (69.7 m) long with a longest span of 71 ft (21.6 m) and a deck 31 ft wide.

Who owns Black Road over UP RR & AMTRAK?

It is owned by the County Highway Agency.