Structure 594 · Pima County, AZ

I-10 EB over Craycroft RD

Carries I-10 EB over Craycroft RD, 7.7 Mi E Jct I-19.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT177 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

177 ft end to end, longest span 51 ft: about 2 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 multi-beam bridge.

Built196066 years old
Length176.8 ft53.9 m
Daily traffic71,000counted 2023
Last inspectedJanuary 2024every 24 months

Location

StateArizona
CountyPima
Location7.7 Mi E Jct I-19
CarriesI-10 EB
CrossesCraycroft RD
Coordinates32.12529, -110.87542

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length176.8 ft (53.9 m)
Max Span50.9 ft (15.5 m)
Deck Width43.6 ft (13.3 m)
Deck Area716.9 sq m
Main Spans4
Year Built1960

Traffic

Avg Daily Traffic71,000 (2023)
Truck Traffic15%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number00594

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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