Structure 9964 · Baldwin County, AL

US 31 SB over Csx Rr/bay Minette

Carries US 31 SB over Csx Rr/bay Minette, 0.8 Mi N Jct Co RD 138.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT197 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

197 ft end to end: about 3 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.

Built196957 years old
Length196.9 ft60 m
Daily traffic22,306counted 2021
Last inspectedJune 2023every 24 months

Location

StateAlabama
CountyBaldwin
Location0.8 Mi N Jct Co RD 138
CarriesUS 31 SB
CrossesCsx Rr/bay Minette
Coordinates30.87557, -87.78284

Physical Characteristics

MaterialSteel
DesignTee Beam
Total Length196.9 ft (60 m)
Max Span61.0 ft (18.6 m)
Deck Width43.0 ft (13.1 m)
Deck Area786 sq m
Main Spans1
Year Built1969

Traffic

Avg Daily Traffic22,306 (2021)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number009964

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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