Structure SA4400000000123 · Lowndes County, MS

Jess Lyons Road over Releif

Carries Jess Lyons Road over Releif, Sec 23 T17s R18w B.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT57 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

57 ft end to end, longest span 19 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.

Built199729 years old
Length57.1 ft17.4 m
Daily traffic1,700counted 2022
Last inspectedMarch 2024every 24 months

Location

StateMississippi
CountyLowndes
LocationSec 23 T17s R18w B
CarriesJess Lyons Road
CrossesReleif
Coordinates33.56639, -88.39139

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length57.1 ft (17.4 m)
Max Span19.0 ft (5.8 m)
Deck Width31.2 ft (9.5 m)
Deck Area165.3 sq m
Main Spans3
Year Built1997

Traffic

Avg Daily Traffic1,700 (2022)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA4400000000123

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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