Structure 49 0182 · San Luis Obispo County, CA

State Route 1 over SR 41 (@pm 0.01)

Carries State Route 1 over SR 41 (@pm 0.01), 05-slo-001-30.14.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT71 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

71 ft end to end. Lengths and the car 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.

Built1962rebuilt 1998
Length70.5 ft21.5 m
Daily traffic24,000counted 2009
Last inspectedSeptember 2021every 48 months

Location

StateCalifornia
CountySan Luis Obispo
Location05-slo-001-30.14
CarriesState Route 1
CrossesSR 41 (@pm 0.01)
Coordinates35.38001, -120.85536

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length70.5 ft (21.5 m)
Max Span67.9 ft (20.7 m)
Deck Width88.6 ft (27 m)
Deck Area580.5 sq m
Main Spans1
Year Built1962 (reconstructed 1998)

Traffic

Avg Daily Traffic24,000 (2009)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number49 0182

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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