Structure 11000590370532A · Lamar County, MS

I 59 over Black Creek

Carries I 59 over Black Creek, 12.1 Mi N SR 13.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT450 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

450 ft end to end, longest span 90 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.

Built1961rebuilt 2015
Length450.1 ft137.2 m
Daily traffic9,500counted 2023
Last inspectedJune 2024every 24 months

Location

StateMississippi
CountyLamar
Location12.1 Mi N SR 13
CarriesI 59
CrossesBlack Creek
Coordinates31.16964, -89.35196

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length450.1 ft (137.2 m)
Max Span89.9 ft (27.4 m)
Deck Width44.9 ft (13.7 m)
Deck Area1879.6 sq m
Main Spans3
Year Built1961 (reconstructed 2015)

Traffic

Avg Daily Traffic9,500 (2023)
Truck Traffic23%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number11000590370532A

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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