Structure 51C0155 · Santa Barbara County, CA

Patterson AVE over Up Rr & Amtrak

Carries Patterson AVE over Up Rr & Amtrak, S Of U.s. HWY 101.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

134 ft end to end. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built199234 years old
Length133.9 ft40.8 m
Daily traffic26,359counted 2008
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountySanta Barbara
LocationS Of U.s. HWY 101
CarriesPatterson AVE
CrossesUp Rr & Amtrak
Coordinates34.44084, -119.80844

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length133.9 ft (40.8 m)
Max Span128.9 ft (39.3 m)
Deck Width103.0 ft (31.4 m)
Deck Area1281.1 sq m
Main Spans1
Year Built1992

Traffic

Avg Daily Traffic26,359 (2008)
Truck Traffic5%
Lanes On Bridge5

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number51C0155

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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