Structure 6100570 · Noble County, OH

Ir 77 over Duck Creek

Carries Ir 77 over Duck Creek, 10.96m N Wash. Co. Line.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
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 FT239 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

239 ft end to end, longest span 90 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 multi-beam bridge.

Built196957 years old
Length238.5 ft72.7 m
Daily traffic9,580counted 2015
Last inspectedSeptember 2024every 12 months

Location

StateOhio
CountyNoble
Location10.96m N Wash. Co. Line
CarriesIr 77
CrossesDuck Creek
Coordinates39.78439, -81.55421

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length238.5 ft (72.7 m)
Max Span89.9 ft (27.4 m)
Deck Width53.5 ft (16.3 m)
Deck Area1185.0 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic9,580 (2015)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number6100570

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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