Structure SA2500000000390 · Hinds County, MS

Old HWY 80 over Big Black River

Carries Old HWY 80 over Big Black River, Sec 22 T16n R 5e B.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
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 FT573 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

573 ft end to end: about 1.6 football fields. 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 through truss.

Built192997 years old
Length573.2 ft174.7 m
Daily traffic830counted 2021
Last inspectedNovember 2024every 12 months

Location

StateMississippi
CountyHinds
LocationSec 22 T16n R 5e B
CarriesOld HWY 80
CrossesBig Black River
Coordinates32.34769, -90.69724

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length573.2 ft (174.7 m)
Max Span172.9 ft (52.7 m)
Deck Width22.6 ft (6.9 m)
Deck Area1205.4 sq m
Main Spans1
Year Built1929

Traffic

Avg Daily Traffic830 (2021)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure NumberSA2500000000390

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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