Structure 310061103000090 · Jackson County, MS

SR 611 over Chevron Pipelines

Carries SR 611 over Chevron Pipelines, 3.3 Mi S US 90.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

110 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built201511 years old
Length109.9 ft33.5 m
Daily traffic4,200counted 2023
Last inspectedFebruary 2024every 24 months

Location

StateMississippi
CountyJackson
Location3.3 Mi S US 90
CarriesSR 611
CrossesChevron Pipelines
Coordinates30.34512, -88.49399

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length109.9 ft (33.5 m)
Max Span106.6 ft (32.5 m)
Deck Width78.4 ft (23.9 m)
Deck Area800.6 sq m
Main Spans1
Year Built2015

Traffic

Avg Daily Traffic4,200 (2023)
Truck Traffic20%
Lanes On Bridge5

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number310061103000090

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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