Structure 42 0398K · Fresno County, CA

Maple Avenue over Chestnut Ave-w180 Onramp

Carries Maple Avenue over Chestnut Ave-w180 Onramp, 06-fre-180-r60.41.

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 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

94 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.

Built199927 years old
Length94.2 ft28.7 m
Daily traffic5,000counted 2016
Last inspectedJanuary 2022every 48 months

Location

StateCalifornia
CountyFresno
Location06-fre-180-r60.41
CarriesMaple Avenue
CrossesChestnut Ave-w180 Onramp
Coordinates36.75550, -119.74532

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length94.2 ft (28.7 m)
Max Span89.6 ft (27.3 m)
Deck Width80.1 ft (24.4 m)
Deck Area700.3 sq m
Main Spans1
Year Built1999

Traffic

Avg Daily Traffic5,000 (2016)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number42 0398K

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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