Structure 8071 · Apache County, AZ

IRR Old US 66 over Querino Canyon

Carries IRR Old US 66 over Querino Canyon, 3.0 Mi NE Of Cedar Pt Ti.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT269 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

269 ft end to end, longest span 77 ft: about 4 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 deck truss.

Built193195 years old
Length269.0 ft82 m
Daily traffic500counted 2024
Last inspectedJuly 2024every 24 months

Location

StateArizona
CountyApache
Location3.0 Mi NE Of Cedar Pt Ti
CarriesIRR Old US 66
CrossesQuerino Canyon
Coordinates35.27080, -109.27740

Physical Characteristics

MaterialSteel
DesignTruss - Deck
Total Length269.0 ft (82 m)
Max Span77.1 ft (23.5 m)
Deck Width21.0 ft (6.4 m)
Deck Area524.8 sq m
Main Spans5
Year Built1931

Traffic

Avg Daily Traffic500 (2024)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical3 — Scour critical
Structure Number08071

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.

Nearby Bridges