Structure 1655 · Coconino County, AZ

Fox Ranch RD Ti over I 17

Carries Fox Ranch RD Ti over I 17, 18.9 Mi North Jct SR 179.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT216 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

216 ft end to end, longest span 106 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 multi-beam bridge.

Built197650 years old
Length215.9 ft65.8 m
Daily traffic170counted 2022
Last inspectedJuly 2023every 24 months

Location

StateArizona
CountyCoconino
Location18.9 Mi North Jct SR 179
CarriesFox Ranch RD Ti
CrossesI 17
Coordinates34.87500, -111.63540

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length215.9 ft (65.8 m)
Max Span106.0 ft (32.3 m)
Deck Width28.5 ft (8.7 m)
Deck Area572.5 sq m
Main Spans2
Year Built1976

Traffic

Avg Daily Traffic170 (2022)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number01655

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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