Structure 10481 · Maricopa County, AZ

Mcdonald Drive over Indian Bend Wash

Carries Mcdonald Drive over Indian Bend Wash, 100 Ft W Jct Hayden RD.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT216 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

216 ft end to end, longest span 59 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 slab bridge.

Built197452 years old
Length215.9 ft65.8 m
Daily traffic10,050counted 2022
Last inspectedMarch 2024every 24 months

Location

StateArizona
CountyMaricopa
Location100 Ft W Jct Hayden RD
CarriesMcdonald Drive
CrossesIndian Bend Wash
Coordinates33.52400, -111.90990

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length215.9 ft (65.8 m)
Max Span59.1 ft (18 m)
Deck Width33.1 ft (10.1 m)
Deck Area664.6 sq m
Main Spans4
Year Built1974

Traffic

Avg Daily Traffic10,050 (2022)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number10481

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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