Structure 2169 · Maricopa County, AZ

West-south Ramp over I 17; 101l; 27th Ramp C

Carries West-south Ramp over I 17; 101l; 27th Ramp C, 4th Level Center Of Ti.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,735 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,735 ft end to end, longest span 190 ft: about 4.8 football fields. 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 box-beam bridge.

Built1997rebuilt 1999
Length1734.9 ft528.8 m
Daily traffic12,883counted 2020
Last inspectedJune 2024every 24 months

Location

StateArizona
CountyMaricopa
Location4th Level Center Of Ti
CarriesWest-south Ramp
CrossesI 17; 101l; 27th Ramp C
Coordinates33.66920, -112.10960

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length1734.9 ft (528.8 m)
Max Span190.0 ft (57.9 m)
Deck Width39.0 ft (11.9 m)
Deck Area6292.7 sq m
Main Spans10
Year Built1997 (reconstructed 1999)

Traffic

Avg Daily Traffic12,883 (2020)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge24

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number02169

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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