Structure 310001303307740 · Jefferson Davis County, MS

SR 13 over Unnamed Stream

Carries SR 13 over Unnamed Stream, 3.4 Mi N US 84.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT45 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 45 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built194086 years old
Length44.9 ft13.7 m
Daily traffic2,800counted 2023
Last inspectedOctober 2023every 24 months

Location

StateMississippi
CountyJefferson Davis
Location3.4 Mi N US 84
CarriesSR 13
CrossesUnnamed Stream
Coordinates31.65412, -89.85911

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length44.9 ft (13.7 m)
Max Span12.1 ft (3.7 m)
Deck Area142.5 sq m
Main Spans3
Year Built1940

Traffic

Avg Daily Traffic2,800 (2023)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number310001303307740

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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