Structure 1631 · Greenlee County, AZ

US 191;fau 9512 over Industrial Plant; Fas 21

Carries US 191;fau 9512 over Industrial Plant; Fas 21, 14.7 M N Jct SR 78.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT209 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 5/9

209 ft end to end, longest span 57 ft: about 3 semi-trucks nose to tail. 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 girder bridge.

Built194383 years old
Length209.0 ft63.7 m
Daily traffic1,048counted 2022
Last inspectedOctober 2023every 24 months

Location

StateArizona
CountyGreenlee
Location14.7 M N Jct SR 78
CarriesUS 191;fau 9512
CrossesIndustrial Plant; Fas 21
Coordinates33.06990, -109.34240

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length209.0 ft (63.7 m)
Max Span57.1 ft (17.4 m)
Deck Width29.9 ft (9.1 m)
Deck Area579.7 sq m
Main Spans5
Year Built1943

Traffic

Avg Daily Traffic1,048 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number01631

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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