Structure 410005903815870 · Lauderdale County, MS

Murphy Road over I 59/i 20

Carries Murphy Road over I 59/i 20, 1.8 Mi N US 45.

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 FT316 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

316 ft end to end, longest span 70 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.

Built195967 years old
Length315.9 ft96.3 m
Daily traffic370counted 2023
Last inspectedMarch 2024every 24 months

Location

StateMississippi
CountyLauderdale
Location1.8 Mi N US 45
CarriesMurphy Road
CrossesI 59/i 20
Coordinates32.38910, -88.60627

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length315.9 ft (96.3 m)
Max Span69.9 ft (21.3 m)
Deck Width29.9 ft (9.1 m)
Deck Area876.3 sq m
Main Spans6
Year Built1959

Traffic

Avg Daily Traffic370 (2023)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number410005903815870

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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