Structure 611930559905421 · East Feliciana County, LA

L Williams RD over Unamed Creek

Carries L Williams RD over Unamed Creek, 0.7 M N Of La 961.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 1 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating1/9 · Imminent Failure
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 1/9 · sets the rating

47 ft end to end, longest span 15 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.

Built197551 years old
Length46.9 ft14.3 m
Daily traffic304counted 2022
Last inspectedJuly 2024every 12 months

Location

StateLouisiana
CountyEast Feliciana
Location0.7 M N Of La 961
CarriesL Williams RD
CrossesUnamed Creek
Coordinates30.93096, -90.90225

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length46.9 ft (14.3 m)
Max Span15.1 ft (4.6 m)
Deck Width20.0 ft (6.1 m)
Deck Area87.2 sq m
Main Spans3
Year Built1975

Traffic

Avg Daily Traffic304 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number611930559905421

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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