Structure 2001500 · Defiance County, OH

SR 66 S Jefferson over Auglaize River

Carries SR 66 S Jefferson over Auglaize River, 1.2 Mi. South Of Sr18.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT585 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

585 ft end to end, longest span 126 ft: about 1.6 football fields. 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.

Built196660 years old
Length585.0 ft178.3 m
Daily traffic9,940counted 2015
Last inspectedApril 2024every 12 months

Location

StateOhio
CountyDefiance
Location1.2 Mi. South Of Sr18
CarriesSR 66 S Jefferson
CrossesAuglaize River
Coordinates41.26998, -84.36961

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length585.0 ft (178.3 m)
Max Span126.0 ft (38.4 m)
Deck Width39.4 ft (12 m)
Deck Area2139.6 sq m
Main Spans5
Year Built1966

Traffic

Avg Daily Traffic9,940 (2015)
Truck Traffic3%
Lanes On Bridge2

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 Number2001500

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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