Structure 8834350 · Wyandot County, OH

Th40a over Sandusky River

Carries Th40a over Sandusky River, 0.20 Miles North Of Th37a.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT172 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

172 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.

Built1900rebuilt 2018
Length171.9 ft52.4 m
Daily traffic95counted 2015
Last inspectedNovember 2024every 12 months

Location

StateOhio
CountyWyandot
Location0.20 Miles North Of Th37a
CarriesTh40a
CrossesSandusky River
Coordinates40.90294, -83.24449

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length171.9 ft (52.4 m)
Max Span162.1 ft (49.4 m)
Deck Width20.3 ft (6.2 m)
Deck Area324.9 sq m
Main Spans1
Year Built1900 (reconstructed 2018)

Traffic

Avg Daily Traffic95 (2015)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical8 — Stable, low risk
Structure Number8834350

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.

Nearby Bridges