Structure 625330409901901 · Tangipahoa County, LA

Singing Waterfall over Chappepeela Creek

Carries Singing Waterfall over Chappepeela Creek, 1.4 Miles West Of La 445.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

43 ft end to end, longest span 16 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.

Built196066 years old
Length43.0 ft13.1 m
Daily traffic64counted 2019
Last inspectedJune 2023every 12 months

Location

StateLouisiana
CountyTangipahoa
Location1.4 Miles West Of La 445
CarriesSinging Waterfall
CrossesChappepeela Creek
Coordinates30.68231, -90.31666

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length43.0 ft (13.1 m)
Max Span16.1 ft (4.9 m)
Deck Width16.1 ft (4.9 m)
Deck Area64.2 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic64 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number625330409901901

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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