Structure H58616B0825 · Gila County, AZ

IRR BIA RTE 6 over Little Gilson Wash

Carries IRR BIA RTE 6 over Little Gilson Wash, Cutter RD And Apache AVE.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 41 ft across with 2 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.

Built1990rebuilt 2017
Length41.0 ft12.5 m
Daily traffic2,000counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateArizona
CountyGila
LocationCutter RD And Apache AVE
CarriesIRR BIA RTE 6
CrossesLittle Gilson Wash
Coordinates33.35034, -110.45478

Physical Characteristics

MaterialAluminum/Wrought Iron/Cast Iron
DesignCulvert
Total Length41.0 ft (12.5 m)
Max Span19.4 ft (5.9 m)
Deck Width82.0 ft (25 m)
Deck Area312.5 sq m
Main Spans2
Year Built1990 (reconstructed 2017)

Traffic

Avg Daily Traffic2,000 (2021)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0000H58616B0825

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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