Structure 611704501000147 · East Baton Rouge County, LA

I0010 over La 30 Nicholson DR

Carries I0010 over La 30 Nicholson DR, 1.2 Mi E. Of La 1.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT864 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

864 ft end to end, longest span 102 ft: about 2.4 football fields. Lengths and the semi-truck 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.

Built196759 years old
Length863.8 ft263.3 m
Daily traffic11,311counted 2021
Last inspectedOctober 2024every 24 months

Location

StateLouisiana
CountyEast Baton Rouge
Location1.2 Mi E. Of La 1
CarriesI0010
CrossesLa 30 Nicholson DR
Coordinates30.43885, -91.18811

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length863.8 ft (263.3 m)
Max Span102.0 ft (31.1 m)
Deck Width24.9 ft (7.6 m)
Deck Area2001.1 sq m
Main Spans12
Year Built1967

Traffic

Avg Daily Traffic11,311 (2021)
Truck Traffic9%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number611704501000147

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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