Structure H652 · Pima County, AZ

IRR BIA RTE 34 over Wash

Carries IRR BIA RTE 34 over Wash, 45.8 Km N Of Az HWY 86.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
21 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 21 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built197452 years old
Length20.7 ft6.3 m
Daily traffic170counted 2023
Last inspectedJanuary 2023every 24 months

Location

StateArizona
CountyPima
Location45.8 Km N Of Az HWY 86
CarriesIRR BIA RTE 34
CrossesWash
Coordinates32.40869, -112.26792

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length20.7 ft (6.3 m)
Max Span10.2 ft (3.1 m)
Deck Width40.0 ft (12.2 m)
Deck Area76.9 sq m
Main Spans2
Year Built1974

Traffic

Avg Daily Traffic170 (2023)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00000000000H652

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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