Structure 8973 · Greenlee County, AZ

City Parking Lot over Chase Creek

Carries City Parking Lot over Chase Creek, N Of Chase Crk ST @ Us191.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

26 ft end to end, longest span 22 ft. Lengths and the car 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.

Built1915rebuilt 1925
Length25.9 ft7.9 m
Daily traffic358counted 2022
Last inspectedAugust 2023every 24 months

Location

StateArizona
CountyGreenlee
LocationN Of Chase Crk ST @ Us191
CarriesCity Parking Lot
CrossesChase Creek
Coordinates33.05653, -109.30216

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length25.9 ft (7.9 m)
Max Span22.0 ft (6.7 m)
Deck Width214.9 ft (65.5 m)
Deck Area517.5 sq m
Main Spans2
Year Built1915 (reconstructed 1925)

Traffic

Avg Daily Traffic358 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number08973

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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