Structure 11000550250991B · Hinds County, MS

I 55 over Northside Drive

Carries I 55 over Northside Drive, 1.6 Mi N SR 25.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT412 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 8/9

412 ft end to end, longest span 148 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 box-beam bridge.

Built198937 years old
Length412.1 ft125.6 m
Daily traffic53,500counted 2023
Last inspectedJune 2024every 24 months

Location

StateMississippi
CountyHinds
Location1.6 Mi N SR 25
CarriesI 55
CrossesNorthside Drive
Coordinates32.35515, -90.15190

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length412.1 ft (125.6 m)
Max Span148.0 ft (45.1 m)
Deck Width59.4 ft (18.1 m)
Deck Area2273.4 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic53,500 (2023)
Truck Traffic7%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number11000550250991B

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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