Structure 21150 · Jefferson County, AL

12th Court North over I - 65

Carries 12th Court North over I - 65, .05 Mi. N Of Interchange.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT390 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

390 ft end to end, longest span 195 ft: about 5 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 multi-beam bridge.

Built20179 years old
Length390.1 ft118.9 m
Daily traffic1,250counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateAlabama
CountyJefferson
Location.05 Mi. N Of Interchange
Carries12th Court North
CrossesI - 65
Coordinates33.52455, -86.82730

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length390.1 ft (118.9 m)
Max Span194.9 ft (59.4 m)
Deck Width53.1 ft (16.2 m)
Deck Area1926.2 sq m
Main Spans2
Year Built2017

Traffic

Avg Daily Traffic1,250 (2024)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge11

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number021150

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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