Structure 4410 · Cass County, IN

SR 17 (3rd St) over Eel River

Carries SR 17 (3rd St) over Eel River, 00.17 N SR 25 SB.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · 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 FT399 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

399 ft end to end, longest span 93 ft: about 6 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.

Built1918rebuilt 2015
Length399.0 ft121.6 m
Daily traffic24,120counted 2001
Last inspectedDecember 2023every 24 months

Location

StateIndiana
CountyCass
Location00.17 N SR 25 SB
CarriesSR 17 (3rd St)
CrossesEel River
Coordinates40.75622, -86.36835

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length399.0 ft (121.6 m)
Max Span92.8 ft (28.3 m)
Deck Width66.3 ft (20.2 m)
Deck Area2456.3 sq m
Main Spans4
Year Built1918 (reconstructed 2015)

Traffic

Avg Daily Traffic24,120 (2001)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number004410

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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