Structure 5500147 · Morgan County, IN

Mill ST over White Lick Creek

Carries Mill ST over White Lick Creek, 00.06 W Of Bottom Road.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT250 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

250 ft end to end, longest span 84 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 deck arch.

Built195076 years old
Length249.7 ft76.1 m
Daily traffic1,440counted 2023
Last inspectedAugust 2024every 24 months

Location

StateIndiana
CountyMorgan
Location00.06 W Of Bottom Road
CarriesMill ST
CrossesWhite Lick Creek
Coordinates39.53871, -86.36655

Physical Characteristics

MaterialConcrete Continuous
DesignArch - Deck
Total Length249.7 ft (76.1 m)
Max Span84.0 ft (25.6 m)
Deck Width26.9 ft (8.2 m)
Deck Area624.0 sq m
Main Spans3
Year Built1950

Traffic

Avg Daily Traffic1,440 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number5500147

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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