Structure 72730124924321 · Jefferson Davis County, LA

Monger Road over Chene Bayou

Carries Monger Road over Chene Bayou, 0.2 M E Of Farm Supply RD.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT108 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

108 ft end to end, longest span 27 ft. Lengths and the car 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.

Built197947 years old
Length107.9 ft32.9 m
Daily traffic110counted 2019
Last inspectedJuly 2024every 24 months

Location

StateLouisiana
CountyJefferson Davis
Location0.2 M E Of Farm Supply RD
CarriesMonger Road
CrossesChene Bayou
Coordinates30.20697, -92.72035

Physical Characteristics

MaterialPrestressed Concrete
DesignChannel Beam
Total Length107.9 ft (32.9 m)
Max Span26.9 ft (8.2 m)
Deck Width22.3 ft (6.8 m)
Deck Area223.7 sq m
Main Spans4
Year Built1979

Traffic

Avg Daily Traffic110 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number072730124924321

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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