Structure 12916 · Jefferson County, AL

I - 20 West over Ratliff Road

Carries I - 20 West over Ratliff Road, I20 And Ratliff RD.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT328 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

328 ft end to end, longest span 134 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.

Built198343 years old
Length328.1 ft100 m
Daily traffic35,000counted 2022
Last inspectedMarch 2023every 24 months

Location

StateAlabama
CountyJefferson
LocationI20 And Ratliff RD
CarriesI - 20 West
CrossesRatliff Road
Coordinates33.54833, -86.62806

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length328.1 ft (100 m)
Max Span133.9 ft (40.8 m)
Deck Width70.9 ft (21.6 m)
Deck Area2,160 sq m
Main Spans3
Year Built1983

Traffic

Avg Daily Traffic35,000 (2022)
Truck Traffic21%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number012916

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.

Nearby Bridges