Structure 40904513007792 · Caddo County, LA

I0220 over US 71

Carries I0220 over US 71, I-220 Over US 71.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT305 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

305 ft end to end, longest span 138 ft: about 4 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 girder bridge.

Built197947 years old
Length305.1 ft93 m
Daily traffic13,700counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateLouisiana
CountyCaddo
LocationI-220 Over US 71
CarriesI0220
CrossesUS 71
Coordinates32.55462, -93.78120

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length305.1 ft (93 m)
Max Span138.1 ft (42.1 m)
Deck Width54.8 ft (16.7 m)
Deck Area1553.1 sq m
Main Spans3
Year Built1979

Traffic

Avg Daily Traffic13,700 (2021)
Truck Traffic19%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number040904513007792

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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