Structure 38860 · Lake County, IN

I-65 NB over Csx Centr Av Unt Burns

Carries I-65 NB over Csx Centr Av Unt Burns, 00.66 N I-80.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,107 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

1,107 ft end to end, longest span 80 ft: about 3.1 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.

Built1965rebuilt 2019
Length1106.6 ft337.3 m
Daily traffic14,580counted 2018
Last inspectedMarch 2023every 24 months

Location

StateIndiana
CountyLake
Location00.66 N I-80
CarriesI-65 NB
CrossesCsx Centr Av Unt Burns
Coordinates41.57733, -87.29588

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1106.6 ft (337.3 m)
Max Span79.7 ft (24.3 m)
Deck Width38.1 ft (11.6 m)
Deck Area3912.7 sq m
Main Spans16
Year Built1965 (reconstructed 2019)

Traffic

Avg Daily Traffic14,580 (2018)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number038860

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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