Structure 53432410915091 · Morehouse County, LA

John Crymes RD over Patten Slough

Carries John Crymes RD over Patten Slough, 1.3 Mi East Int. 474.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 0 of 9.

How ratings work
Decksets the rating0/9 · Failed
Superstructuresets the rating0/9 · Failed
Substructuresets the rating0/9 · Failed
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 0/9Superstructure 0/9Substructure 0/9

42 ft end to end, longest span 14 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.

Built198541 years old
Length42.0 ft12.8 m
Daily traffic80counted 1974
Last inspectedSeptember 2024every 12 months

Location

StateLouisiana
CountyMorehouse
Location1.3 Mi East Int. 474
CarriesJohn Crymes RD
CrossesPatten Slough
Coordinates32.68385, -91.84699

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length42.0 ft (12.8 m)
Max Span14.1 ft (4.3 m)
Deck Width24.3 ft (7.4 m)
Deck Area94.7 sq m
Main Spans3
Year Built1985

Traffic

Avg Daily Traffic80 (1974)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number053432410915091

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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