Structure 9785 · Maricopa County, AZ

16th Street over Sprr

Carries 16th Street over Sprr, 16th ST S Of Jefferson ST.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT988 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

988 ft end to end, longest span 98 ft: about 2.7 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 multi-beam bridge.

Built198046 years old
Length987.5 ft301 m
Daily traffic20,685counted 2021
Last inspectedOctober 2022every 24 months

Location

StateArizona
CountyMaricopa
Location16th ST S Of Jefferson ST
Carries16th Street
CrossesSprr
Coordinates33.44320, -112.04780

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length987.5 ft (301 m)
Max Span98.1 ft (29.9 m)
Deck Width71.9 ft (21.9 m)
Deck Area6591.9 sq m
Main Spans10
Year Built1980

Traffic

Avg Daily Traffic20,685 (2021)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number09785

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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