Structure 12228 · Mobile County, AL

SR 193 SB over I-10

Carries SR 193 SB over I-10, Tillmans Corner.

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 FT398 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

398 ft end to end, longest span 127 ft: about 6 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.

Built197947 years old
Length398.0 ft121.3 m
Daily traffic12,851counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateAlabama
CountyMobile
LocationTillmans Corner
CarriesSR 193 SB
CrossesI-10
Coordinates30.59539, -88.15386

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length398.0 ft (121.3 m)
Max Span127.0 ft (38.7 m)
Deck Width54.8 ft (16.7 m)
Deck Area2025.7 sq m
Main Spans4
Year Built1979

Traffic

Avg Daily Traffic12,851 (2023)
Truck Traffic5%
Lanes On Bridge3
Lanes Under Bridge8

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number012228

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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