Structure 11000100240362A · Harrison County, MS

I 10 over Three Rivers Road

Carries I 10 over Three Rivers Road, 0.5 Mi E US 49.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT310 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

310 ft end to end, longest span 140 ft: about 4 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 box-beam bridge.

Built1969rebuilt 2000
Length310.0 ft94.5 m
Daily traffic33,000counted 2023
Last inspectedNovember 2023every 24 months

Location

StateMississippi
CountyHarrison
Location0.5 Mi E US 49
CarriesI 10
CrossesThree Rivers Road
Coordinates30.43500, -89.08553

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length310.0 ft (94.5 m)
Max Span140.1 ft (42.7 m)
Deck Width62.0 ft (18.9 m)
Deck Area1786.0 sq m
Main Spans3
Year Built1969 (reconstructed 2000)

Traffic

Avg Daily Traffic33,000 (2023)
Truck Traffic17%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number11000100240362A

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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