Structure SA3400000000088 · Jones County, MS

Moselle-seminry RD over Leaf River

Carries Moselle-seminry RD over Leaf River, Sec 33 T 7n R13w B.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT459 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

459 ft end to end, longest span 120 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 multi-beam bridge.

Built197056 years old
Length459.0 ft139.9 m
Daily traffic1,805counted 2023
Last inspectedNovember 2023every 24 months

Location

StateMississippi
CountyJones
LocationSec 33 T 7n R13w B
CarriesMoselle-seminry RD
CrossesLeaf River
Coordinates31.52917, -89.30544

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length459.0 ft (139.9 m)
Max Span120.1 ft (36.6 m)
Deck Width30.8 ft (9.4 m)
Deck Area1315.1 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic1,805 (2023)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA3400000000088

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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