Structure 21153 · Jefferson County, AL

_11th AVE Ramp over _16th Street North

Carries _11th AVE Ramp over _16th Street North, _11th AVE North.

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
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

75 ft end to end. 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 multi-beam bridge.

Built20179 years old
Length75.1 ft22.9 m
Daily traffic2,017counted 2024
Last inspectedJune 2024every 24 months

Location

StateAlabama
CountyJefferson
Location_11th AVE North
Carries_11th AVE Ramp
Crosses_16th Street North
Coordinates33.52290, -86.81900

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length75.1 ft (22.9 m)
Max Span75.1 ft (22.9 m)
Deck Width54.1 ft (16.5 m)
Deck Area377.9 sq m
Main Spans1
Year Built2017

Traffic

Avg Daily Traffic2,017 (2024)
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number021153

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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