Structure 9507 · Calhoun County, AL

I-20 over Choccolocco Ck Relief#2

Carries I-20 over Choccolocco Ck Relief#2, 0.4 Mi W Jct US 431.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT272 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

272 ft end to end, longest span 34 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 tee-beam bridge.

Built196858 years old
Length272.0 ft82.9 m
Daily traffic23,717counted 2023
Last inspectedMarch 2024every 24 months

Location

StateAlabama
CountyCalhoun
Location0.4 Mi W Jct US 431
CarriesI-20
CrossesChoccolocco Ck Relief#2
Coordinates33.61743, -85.72965

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length272.0 ft (82.9 m)
Max Span34.1 ft (10.4 m)
Deck Width54.5 ft (16.6 m)
Deck Area1376.1 sq m
Main Spans8
Year Built1968

Traffic

Avg Daily Traffic23,717 (2023)
Truck Traffic40%
Lanes On Bridge3

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number009507

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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