Structure 20069 · Maricopa County, AZ

Ramp NW over I-10

Carries Ramp NW over I-10, At Junct Of I-10/303L.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,498 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

1,498 ft end to end, longest span 235 ft: about 4.2 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.

Built20179 years old
Length1498.0 ft456.6 m
Daily traffic6,527counted 2023
Last inspectedOctober 2023every 24 months

Location

StateArizona
CountyMaricopa
LocationAt Junct Of I-10/303L
CarriesRamp NW
CrossesI-10
Coordinates33.45930, -112.42730

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length1498.0 ft (456.6 m)
Max Span234.9 ft (71.6 m)
Deck Width43.3 ft (13.2 m)
Deck Area6027.1 sq m
Main Spans8
Year Built2017

Traffic

Avg Daily Traffic6,527 (2023)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge20

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number20069

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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