Structure 610 · Pinal County, AZ

IRR SR 87 over Mcclellan Wash

Carries IRR SR 87 over Mcclellan Wash, 4.7 Mi W Jct SR 287.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT119 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

119 ft end to end, longest span 25 ft. 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 slab bridge.

Built196066 years old
Length119.1 ft36.3 m
Daily traffic10,511counted 2022
Last inspectedJanuary 2024every 24 months

Location

StateArizona
CountyPinal
Location4.7 Mi W Jct SR 287
CarriesIRR SR 87
CrossesMcclellan Wash
Coordinates33.00260, -111.59980

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length119.1 ft (36.3 m)
Max Span24.9 ft (7.6 m)
Deck Width44.6 ft (13.6 m)
Deck Area493.7 sq m
Main Spans5
Year Built1960

Traffic

Avg Daily Traffic10,511 (2022)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number00610

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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