Structure 51150 · Marion County, IN

US 31 SB Ramp over I-465 WB Lick Creek

Carries US 31 SB Ramp over I-465 WB Lick Creek, 00.10 W US 31.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT507 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

507 ft end to end, longest span 83 ft: about 7 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.

Built1962rebuilt 2021
Length506.6 ft154.4 m
Daily traffic4,028counted 2021
Last inspectedJune 2024every 24 months

Location

StateIndiana
CountyMarion
Location00.10 W US 31
CarriesUS 31 SB Ramp
CrossesI-465 WB Lick Creek
Coordinates39.69956, -86.15050

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length506.6 ft (154.4 m)
Max Span82.7 ft (25.2 m)
Deck Width25.3 ft (7.7 m)
Deck Area1188.9 sq m
Main Spans6
Year Built1962 (reconstructed 2021)

Traffic

Avg Daily Traffic4,028 (2021)
Truck Traffic4%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number051150

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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