Structure SA060000000A129 · Bolivar County, MS

Oneal Road over Laban Bayou

Carries Oneal Road over Laban Bayou, Sec 12 T22n R 7w.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

142 ft end to end, longest span 80 ft. 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.

Built20188 years old
Length141.7 ft43.2 m
Daily traffic60counted 2025
Last inspectedJanuary 2025every 24 months

Location

StateMississippi
CountyBolivar
LocationSec 12 T22n R 7w
CarriesOneal Road
CrossesLaban Bayou
Coordinates33.76266, -90.87303

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length141.7 ft (43.2 m)
Max Span80.1 ft (24.4 m)
Deck Width31.2 ft (9.5 m)
Deck Area410.4 sq m
Main Spans3
Year Built2018

Traffic

Avg Daily Traffic60 (2025)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA060000000A129

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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