Structure SA3600000000146 · Lafayette County, MS

Co.road 487 over Creek

Carries Co.road 487 over Creek, Sec 14 T10s R 2w.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

39 ft end to end, longest span 20 ft. Lengths and the car 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.

Built196363 years old
Length39.0 ft11.9 m
Daily traffic10counted 2014
Last inspectedFebruary 2024every 12 months

Location

StateMississippi
CountyLafayette
LocationSec 14 T10s R 2w
CarriesCo.road 487
CrossesCreek
Coordinates34.21968, -89.38622

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length39.0 ft (11.9 m)
Max Span20.0 ft (6.1 m)
Deck Width20.0 ft (6.1 m)
Deck Area72.6 sq m
Main Spans2
Year Built1963

Traffic

Avg Daily Traffic10 (2014)
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure NumberSA3600000000146

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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