Structure H202 · Graham County, AZ

IRR BIA RTE 8 over Wash

Carries IRR BIA RTE 8 over Wash, 15.3 Km NE Of Jct 70.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

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

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.

Built196561 years old
Length21.0 ft6.4 m
Daily traffic170counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateArizona
CountyGraham
Location15.3 Km NE Of Jct 70
CarriesIRR BIA RTE 8
CrossesWash
Coordinates33.38692, -110.27742

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length21.0 ft (6.4 m)
Max Span10.2 ft (3.1 m)
Deck Width46.6 ft (14.2 m)
Deck Area90.9 sq m
Main Spans2
Year Built1965

Traffic

Avg Daily Traffic170 (2024)
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 Number00000000000H202

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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