Structure SA1200000000122 · Clarke County, MS

Co RD 430 over Browns Creek

Carries Co RD 430 over Browns Creek, Sec 16 T 4n R17e B.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT209 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

209 ft end to end, longest span 19 ft: about 3 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 channel-beam bridge.

Built196759 years old
Length209.0 ft63.7 m
Daily traffic300counted 2024
Last inspectedOctober 2024every 12 months

Location

StateMississippi
CountyClarke
LocationSec 16 T 4n R17e B
CarriesCo RD 430
CrossesBrowns Creek
Coordinates32.19567, -88.55412

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length209.0 ft (63.7 m)
Max Span19.0 ft (5.8 m)
Deck Width24.9 ft (7.6 m)
Deck Area484.1 sq m
Main Spans110
Year Built1967

Traffic

Avg Daily Traffic300 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA1200000000122

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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