Structure 11000590180710B · Forrest County, MS

I 59 over Mcphail Road

Carries I 59 over Mcphail Road, 1.7 Mi S Jones Cl.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT161 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

161 ft end to end: about 2 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.

Built196066 years old
Length161.1 ft49.1 m
Daily traffic16,000counted 2023
Last inspectedDecember 2024every 24 months

Location

StateMississippi
CountyForrest
Location1.7 Mi S Jones Cl
CarriesI 59
CrossesMcphail Road
Coordinates31.41042, -89.31831

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length161.1 ft (49.1 m)
Max Span66.9 ft (20.4 m)
Deck Width32.8 ft (10 m)
Deck Area491 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic16,000 (2023)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number11000590180710B

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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