Structure SA4200000000015 · Leflore County, MS

Co RD 511 over Yazoo River

Carries Co RD 511 over Yazoo River, Sec 26 T18n R 1w B.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT668 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

668 ft end to end, longest span 174 ft: about 1.9 football fields. 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 through truss.

Built196561 years old
Length667.7 ft203.5 m
Daily traffic1,200counted 2013
Last inspectedJanuary 2024every 24 months

Location

StateMississippi
CountyLeflore
LocationSec 26 T18n R 1w B
CarriesCo RD 511
CrossesYazoo River
Coordinates33.39716, -90.27199

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length667.7 ft (203.5 m)
Max Span173.6 ft (52.9 m)
Deck Width32.8 ft (10 m)
Deck Area2,035 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic1,200 (2013)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure NumberSA4200000000015

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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