Structure 49 0198 · San Luis Obispo County, CA

Cayucos DR over State Route 1

Carries Cayucos DR over State Route 1, 05-slo-001-r35.96.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

156 ft end to end, longest span 48 ft: about 2 semi-trucks nose to tail. 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 tee-beam bridge.

Built196561 years old
Length155.8 ft47.5 m
Daily traffic1,300counted 2010
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountySan Luis Obispo
Location05-slo-001-r35.96
CarriesCayucos DR
CrossesState Route 1
Coordinates35.45290, -120.90324

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length155.8 ft (47.5 m)
Max Span47.9 ft (14.6 m)
Deck Width40.4 ft (12.3 m)
Deck Area584.2 sq m
Main Spans4
Year Built1965

Traffic

Avg Daily Traffic1,300 (2010)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number49 0198

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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