Structure 72730187925261 · Jefferson Davis County, LA

Rostrom Road over Drain

Carries Rostrom Road over Drain, 3.6 Mi S Of La 102.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 4/9 · sets the rating

40 ft end to end, longest span 20 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 multi-beam bridge.

Built198046 years old
Length40.0 ft12.2 m
Daily traffic70counted 2019
Last inspectedOctober 2024every 12 months

Location

StateLouisiana
CountyJefferson Davis
Location3.6 Mi S Of La 102
CarriesRostrom Road
CrossesDrain
Coordinates30.31354, -92.87778

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length40.0 ft (12.2 m)
Max Span20.0 ft (6.1 m)
Deck Width22.0 ft (6.7 m)
Deck Area81.7 sq m
Main Spans2
Year Built1980

Traffic

Avg Daily Traffic70 (2019)
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 CriticalUnknown
Structure Number072730187925261

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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