Structure 7000106 · Rush County, IN

CR 400n over Little Blue River

Carries CR 400n over Little Blue River, 00.80 E Of CR 550 W.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT85 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

85 ft end to end. Lengths and the car 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.

Built1920rebuilt 1993
Length85.0 ft25.9 m
Daily traffic100counted 2019
Last inspectedApril 2023every 24 months

Location

StateIndiana
CountyRush
Location00.80 E Of CR 550 W
CarriesCR 400n
CrossesLittle Blue River
Coordinates39.66920, -85.53253

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length85.0 ft (25.9 m)
Max Span74.8 ft (22.8 m)
Deck Width24.0 ft (7.3 m)
Deck Area189.1 sq m
Main Spans1
Year Built1920 (reconstructed 1993)

Traffic

Avg Daily Traffic100 (2019)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number7000106

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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