Structure 2000598 · Defiance County, OH

SR 15 over Auglaize River

Carries SR 15 over Auglaize River, City Of Defiance.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT418 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

418 ft end to end, longest span 89 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 box-beam bridge.

Built199135 years old
Length418.3 ft127.5 m
Daily traffic13,870counted 2015
Last inspectedApril 2024every 12 months

Location

StateOhio
CountyDefiance
LocationCity Of Defiance
CarriesSR 15
CrossesAuglaize River
Coordinates41.28531, -84.35821

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length418.3 ft (127.5 m)
Max Span88.6 ft (27 m)
Deck Width65.9 ft (20.1 m)
Deck Area2562.8 sq m
Main Spans5
Year Built1991

Traffic

Avg Daily Traffic13,870 (2015)
Truck Traffic7%
Lanes On Bridge4

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number2000598

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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