Structure 7680 · Cherokee County, AL

Cherokee #20 over Coosa River

Carries Cherokee #20 over Coosa River, 1.5 Mi W Jct SR 25.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT597 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

597 ft end to end, longest span 100 ft: about 1.7 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.

Built196264 years old
Length597.4 ft182.1 m
Daily traffic700counted 2020
Last inspectedJuly 2024every 24 months

Location

StateAlabama
CountyCherokee
Location1.5 Mi W Jct SR 25
CarriesCherokee #20
CrossesCoosa River
Coordinates34.13942, -85.68672

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length597.4 ft (182.1 m)
Max Span100.1 ft (30.5 m)
Deck Width29.2 ft (8.9 m)
Deck Area1620.7 sq m
Main Spans5
Year Built1962

Traffic

Avg Daily Traffic700 (2020)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number007680

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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