Structure 2617 · Maricopa County, AZ

Ramp S-w over SB Frontage Road

Carries Ramp S-w over SB Frontage Road, 0.25 Mi N Of L101/l202.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT308 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

308 ft end to end, longest span 120 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 box-beam bridge.

Built200422 years old
Length308.1 ft93.9 m
Daily traffic17,921counted 2023
Last inspectedJanuary 2025every 24 months

Location

StateArizona
CountyMaricopa
Location0.25 Mi N Of L101/l202
CarriesRamp S-w
CrossesSB Frontage Road
Coordinates33.29520, -111.89410

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length308.1 ft (93.9 m)
Max Span120.1 ft (36.6 m)
Deck Width31.2 ft (9.5 m)
Deck Area892.0 sq m
Main Spans3
Year Built2004

Traffic

Avg Daily Traffic17,921 (2023)
Truck Traffic7%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number02617

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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