Structure 40804510201952 · Bossier County, LA

I0020 over La 72/old Minden Rd.

Carries I0020 over La 72/old Minden Rd., 0.8 Mi W Of La 3105.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT244 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

244 ft end to end, longest span 107 ft: about 3 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.

Built196759 years old
Length244.1 ft74.4 m
Daily traffic71,593counted 2021
Last inspectedNovember 2024every 24 months

Location

StateLouisiana
CountyBossier
Location0.8 Mi W Of La 3105
CarriesI0020
CrossesLa 72/old Minden Rd.
Coordinates32.51813, -93.70920

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length244.1 ft (74.4 m)
Max Span107.0 ft (32.6 m)
Deck Width33.5 ft (10.2 m)
Deck Area758.9 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic71,593 (2021)
Truck Traffic19%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number040804510201952

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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