Structure 431524 · Ashtabula County, OH

State Road over Ashtabula River

Carries State Road over Ashtabula River, .56 Mi N Of Plymouth Ridg.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT613 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

613 ft end to end, longest span 153 ft: about 1.7 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 through truss.

Built200818 years old
Length612.9 ft186.8 m
Daily traffic2,054counted 2015
Last inspectedJune 2024every 24 months

Location

StateOhio
CountyAshtabula
Location.56 Mi N Of Plymouth Ridg
CarriesState Road
CrossesAshtabula River
Coordinates41.85555, -80.76177

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length612.9 ft (186.8 m)
Max Span152.6 ft (46.5 m)
Deck Width32.2 ft (9.8 m)
Deck Area1830.6 sq m
Main Spans4
Year Built2008

Traffic

Avg Daily Traffic2,054 (2015)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number0431524

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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