Structure 53708371701301 · Ouachita County, LA

La0617 over I-20

Carries La0617 over I-20, La 617 Over I-20.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT391 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

391 ft end to end, longest span 111 ft: about 5 semi-trucks nose to tail. 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.

Built198640 years old
Length391.1 ft119.2 m
Daily traffic31,200counted 2016
Last inspectedOctober 2023every 24 months

Location

StateLouisiana
CountyOuachita
LocationLa 617 Over I-20
CarriesLa0617
CrossesI-20
Coordinates32.50530, -92.15730

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length391.1 ft (119.2 m)
Max Span110.9 ft (33.8 m)
Deck Width95.1 ft (29 m)
Deck Area3456.8 sq m
Main Spans4
Year Built1986

Traffic

Avg Daily Traffic31,200 (2016)
Truck Traffic9%
Lanes On Bridge7
Lanes Under Bridge5

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number053708371701301

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.

Nearby Bridges