Structure 4617 · Pima County, AZ

IRR SR 86 over Wash

Carries IRR SR 86 over Wash, 3.4 Mi West Of Jct SR 286.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 43 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built1938rebuilt 2010
Length43.0 ft13.1 m
Daily traffic2,831counted 2022
Last inspectedNovember 2024every 48 months

Location

StateArizona
CountyPima
Location3.4 Mi West Of Jct SR 286
CarriesIRR SR 86
CrossesWash
Coordinates32.06610, -111.36820

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length43.0 ft (13.1 m)
Max Span9.8 ft (3 m)
Deck Width47.9 ft (14.6 m)
Deck Area191.3 sq m
Main Spans4
Year Built1938 (reconstructed 2010)

Traffic

Avg Daily Traffic2,831 (2022)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number04617

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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