Structure 20133 · Maricopa County, AZ

Sr202l S Mntn FWY over 51st AVE

Carries Sr202l S Mntn FWY over 51st AVE, 9.62 Mi S Of I-10/SMF Ti.

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 FT206 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

206 ft end to end, longest span 150 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.

Built20197 years old
Length206.0 ft62.8 m
Daily traffic69,634counted 2023
Last inspectedDecember 2023every 24 months

Location

StateArizona
CountyMaricopa
Location9.62 Mi S Of I-10/SMF Ti
CarriesSr202l S Mntn FWY
Crosses51st AVE
Coordinates33.32700, -112.16900

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length206.0 ft (62.8 m)
Max Span149.9 ft (45.7 m)
Deck Width145.3 ft (44.3 m)
Deck Area2782.0 sq m
Main Spans2
Year Built2019

Traffic

Avg Daily Traffic69,634 (2023)
Truck Traffic17%
Lanes On Bridge8
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number20133

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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