Structure SA4200000000077 · Leflore County, MS

Co RD 541 over Six Mile Lake

Carries Co RD 541 over Six Mile Lake, Sec 17 T21n R 1e B.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT456 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 4/9 · sets the rating

456 ft end to end, longest span 19 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 channel-beam bridge.

Built199036 years old
Length456.0 ft139 m
Daily traffic120counted 2014
Last inspectedDecember 2023every 24 months

Location

StateMississippi
CountyLeflore
LocationSec 17 T21n R 1e B
CarriesCo RD 541
CrossesSix Mile Lake
Coordinates33.68594, -90.21417

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length456.0 ft (139 m)
Max Span19.0 ft (5.8 m)
Deck Width24.6 ft (7.5 m)
Deck Area1042.5 sq m
Main Spans24
Year Built1990

Traffic

Avg Daily Traffic120 (2014)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure NumberSA4200000000077

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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