Structure 9625 · Yavapai County, AZ

Main Street over Silver Spring Gulch

Carries Main Street over Silver Spring Gulch, 600 Ft N Jct SR 89a.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 43 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built1935rebuilt 1975
Length43.0 ft13.1 m
Daily traffic13,890counted 2021
Last inspectedSeptember 2022every 48 months

Location

StateArizona
CountyYavapai
Location600 Ft N Jct SR 89a
CarriesMain Street
CrossesSilver Spring Gulch
Coordinates34.73030, -112.00970

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length43.0 ft (13.1 m)
Max Span9.8 ft (3 m)
Deck Area271.2 sq m
Main Spans4
Year Built1935 (reconstructed 1975)

Traffic

Avg Daily Traffic13,890 (2021)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number09625

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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