Structure 886 · Greenlee County, AZ

US 70 over Railroad Wash

Carries US 70 over Railroad Wash, 3.0 Mi E Jct SR 75.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT86 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

86 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 box-beam bridge.

Built196660 years old
Length86.0 ft26.2 m
Daily traffic1,056counted 2022
Last inspectedAugust 2023every 24 months

Location

StateArizona
CountyGreenlee
Location3.0 Mi E Jct SR 75
CarriesUS 70
CrossesRailroad Wash
Coordinates32.68491, -109.08284

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length86.0 ft (26.2 m)
Max Span83.0 ft (25.3 m)
Deck Width42.7 ft (13 m)
Deck Area340.6 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic1,056 (2022)
Truck Traffic28%
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 Critical7 — Countermeasures installed
Structure Number00886

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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