Structure 11000100240450B · Harrison County, MS

I 10 over Tchoutacabouffa River

Carries I 10 over Tchoutacabouffa River, 1.6 Mi E SR 67.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,486 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

2,486 ft end to end, longest span 140 ft: about 6.9 football fields. 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.

Built196957 years old
Length2485.9 ft757.7 m
Daily traffic47,000counted 2023
Last inspectedMay 2024every 24 months

Location

StateMississippi
CountyHarrison
Location1.6 Mi E SR 67
CarriesI 10
CrossesTchoutacabouffa River
Coordinates30.45645, -88.94858

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2485.9 ft (757.7 m)
Max Span140.1 ft (42.7 m)
Deck Width62.3 ft (19 m)
Deck Area14396.3 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic47,000 (2023)
Truck Traffic10%
Lanes On Bridge3

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number11000100240450B

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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