Structure 49C0157 · San Luis Obispo County, CA

Sycamore RD over Atascadero Creek

Carries Sycamore RD over Atascadero Creek, 0.05 Mi N Of S.r. 41.

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
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

75 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 tee-beam bridge.

Built199036 years old
Length75.1 ft22.9 m
Daily traffic1,750counted 2010
Last inspectedJuly 2023every 24 months

Location

StateCalifornia
CountySan Luis Obispo
Location0.05 Mi N Of S.r. 41
CarriesSycamore RD
CrossesAtascadero Creek
Coordinates35.50168, -120.66220

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length75.1 ft (22.9 m)
Max Span68.9 ft (21 m)
Deck Width39.7 ft (12.1 m)
Deck Area277.1 sq m
Main Spans1
Year Built1990

Traffic

Avg Daily Traffic1,750 (2010)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number49C0157

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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