Structure 201 · Graham County, AZ

US 191 over Stockton Wash

Carries US 191 over Stockton Wash, 23.9 Mi N Jct I-10.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT138 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

138 ft end to end, longest span 25 ft. Lengths and the semi-truck 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 slab bridge.

Built1938rebuilt 1977
Length138.1 ft42.1 m
Daily traffic2,901counted 2022
Last inspectedAugust 2023every 24 months

Location

StateArizona
CountyGraham
Location23.9 Mi N Jct I-10
CarriesUS 191
CrossesStockton Wash
Coordinates32.69341, -109.70770

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length138.1 ft (42.1 m)
Max Span24.9 ft (7.6 m)
Deck Width47.2 ft (14.4 m)
Deck Area606.2 sq m
Main Spans5
Year Built1938 (reconstructed 1977)

Traffic

Avg Daily Traffic2,901 (2022)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number00201

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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