Structure SA6700000000143 · Sunflower County, MS

Lombardy Road over Dougherty Bayou

Carries Lombardy Road over Dougherty Bayou, Sec 31 T23n R 3w B.

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 FT120 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

120 ft end to end, longest span 40 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.

Built197452 years old
Length120.1 ft36.6 m
Daily traffic480counted 2024
Last inspectedMay 2024every 24 months

Location

StateMississippi
CountySunflower
LocationSec 31 T23n R 3w B
CarriesLombardy Road
CrossesDougherty Bayou
Coordinates33.81559, -90.55133

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length120.1 ft (36.6 m)
Max Span40.0 ft (12.2 m)
Deck Width30.8 ft (9.4 m)
Deck Area344.0 sq m
Main Spans3
Year Built1974

Traffic

Avg Daily Traffic480 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA6700000000143

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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