Structure 431516 · Ashtabula County, OH

Harmon Hill Road over Ashtabula River

Carries Harmon Hill Road over Ashtabula River, .2 Mi S Of Schenley.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT154 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

154 ft end to end: about 2 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 through truss.

Built200719 years old
Length153.9 ft46.9 m
Daily traffic781counted 2015
Last inspectedApril 2024every 12 months

Location

StateOhio
CountyAshtabula
Location.2 Mi S Of Schenley
CarriesHarmon Hill Road
CrossesAshtabula River
Coordinates41.87308, -80.78183

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length153.9 ft (46.9 m)
Max Span149.9 ft (45.7 m)
Deck Width27.9 ft (8.5 m)
Deck Area398.6 sq m
Main Spans1
Year Built2007

Traffic

Avg Daily Traffic781 (2015)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0431516

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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