Structure 611730346910381 · East Baton Rouge County, LA

Core LN over Blackwater Bayou

Carries Core LN over Blackwater Bayou, 0.7 Mi E Of La 410.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

75 ft end to end, longest span 25 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 slab bridge.

Built200224 years old
Length75.1 ft22.9 m
Daily traffic2,278counted 2019
Last inspectedMay 2023every 24 months

Location

StateLouisiana
CountyEast Baton Rouge
Location0.7 Mi E Of La 410
CarriesCore LN
CrossesBlackwater Bayou
Coordinates30.57603, -91.06171

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length75.1 ft (22.9 m)
Max Span24.9 ft (7.6 m)
Deck Width36.1 ft (11 m)
Deck Area251.9 sq m
Main Spans3
Year Built2002

Traffic

Avg Daily Traffic2,278 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number611730346910381

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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