Structure 210001101214590 · Clarke County, MS

US 11 over Chunky River Relief

Carries US 11 over Chunky River Relief, 1.4 Mi N SR 513.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT362 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

362 ft end to end, longest span 40 ft: about 5 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.

Built199432 years old
Length361.9 ft110.3 m
Daily traffic1,300counted 2023
Last inspectedMay 2023every 24 months

Location

StateMississippi
CountyClarke
Location1.4 Mi N SR 513
CarriesUS 11
CrossesChunky River Relief
Coordinates32.19332, -88.82381

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length361.9 ft (110.3 m)
Max Span40.0 ft (12.2 m)
Deck Width34.8 ft (10.6 m)
Deck Area1169.2 sq m
Main Spans9
Year Built1994

Traffic

Avg Daily Traffic1,300 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number210001101214590

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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