Structure SA7500000000103 · Warren County, MS

SR 161 over Hennesseys Bayou

Carries SR 161 over Hennesseys Bayou, Sec 17 T15n R 3e.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT342 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

342 ft end to end: about 5 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 multi-beam bridge.

Built200026 years old
Length342.2 ft104.3 m
Daily traffic4,500counted 2022
Last inspectedMarch 2024every 24 months

Location

StateMississippi
CountyWarren
LocationSec 17 T15n R 3e
CarriesSR 161
CrossesHennesseys Bayou
Coordinates32.28117, -90.91728

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length342.2 ft (104.3 m)
Max Span100.1 ft (30.5 m)
Deck Width54.8 ft (16.7 m)
Deck Area1741.8 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic4,500 (2022)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberSA7500000000103

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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