Structure H056 · Gila County, AZ

IRR BIA RTE 9 over White River

Carries IRR BIA RTE 9 over White River, 6.1 Mi S. Of Az HWY 73.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT104 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

104 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 through truss.

Built1934rebuilt 1983
Length103.7 ft31.6 m
Daily traffic5counted 2024
Last inspectedAugust 2024every 24 months

Location

StateArizona
CountyGila
Location6.1 Mi S. Of Az HWY 73
CarriesIRR BIA RTE 9
CrossesWhite River
Coordinates33.73603, -110.16294

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length103.7 ft (31.6 m)
Max Span100.1 ft (30.5 m)
Deck Width16.1 ft (4.9 m)
Deck Area154.8 sq m
Main Spans1
Year Built1934 (reconstructed 1983)

Traffic

Avg Daily Traffic5 (2024)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number00000000000H056

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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