Structure SA5900000000059 · Prentiss County, MS

CR 2120 over Big Brown Creek

Carries CR 2120 over Big Brown Creek, Sec 15 T 5s R 8e.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT121 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

121 ft end to end, longest span 60 ft. 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 multi-beam bridge.

Built199927 years old
Length121.4 ft37 m
Daily traffic180counted 2023
Last inspectedMarch 2023every 24 months

Location

StateMississippi
CountyPrentiss
LocationSec 15 T 5s R 8e
CarriesCR 2120
CrossesBig Brown Creek
Coordinates34.65202, -88.43918

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length121.4 ft (37 m)
Max Span59.7 ft (18.2 m)
Deck Width31.2 ft (9.5 m)
Deck Area351.5 sq m
Main Spans3
Year Built1999

Traffic

Avg Daily Traffic180 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA5900000000059

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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