Structure 49 0174 · San Luis Obispo County, CA

Fair Oaks AVE over US Highway 101

Carries Fair Oaks AVE over US Highway 101, 05-slo-101-12.80-argd.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT126 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

126 ft end to end, longest span 62 ft. 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 slab bridge.

Built195967 years old
Length126.0 ft38.4 m
Daily traffic7,000counted 2009
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySan Luis Obispo
Location05-slo-101-12.80-argd
CarriesFair Oaks AVE
CrossesUS Highway 101
Coordinates35.11881, -120.57801

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSlab
Total Length126.0 ft (38.4 m)
Max Span62.0 ft (18.9 m)
Deck Width64.6 ft (19.7 m)
Deck Area756.5 sq m
Main Spans2
Year Built1959

Traffic

Avg Daily Traffic7,000 (2009)
Truck Traffic8%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number49 0174

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.

Nearby Bridges