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Marengo Street Bridge

Marengo Street Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: March 28, 2015 and September 7, 2015

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Key Facts

Facility Carried / Feature Intersected
Marengo Street Over Delaware Creek
Toledo: Lucas County, Ohio: United States
Construction Date and Builder / Engineer
1915 By Builder/Contractor: Standard Engineering Company of Toledo, Ohio and American Bridge Company of New York, New York

Technical Facts

Rehabilitation Date
Main Span Length
86 Feet (26.1 Meters)
Structure Length
173 Feet (52.6 Meters)
Roadway Width
Not Available
3 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge's future is at risk!

Bridge Status: This historic bridge is Slated for demolition in 2020!

This is one of the smallest known examples of a steel deck cantilever truss bridge.

The historic bridge inventory and other sources online list this as a steel deck arch bridge. However, the original drawings for this bridge clearly describe the bridge as a "cantilever deck bridge" indicating that the bridge actually functions as a deck cantilever truss bridge.

The bridge was fabicated at the Toledo plant of the American Bridge Company.

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Original Plans For This Bridge

Information and Findings From Ohio's Historic Bridge Inventory


The bridge carries a 2-lane street over a ravine in a residential setting in Toledo. The residences are a mix of late 19th to modern houses without the consistency or integrity of a potential historic district.

Physical Description

The 3-span, 175'-long, steel arch bridge is composed of built-up arches of standard sections. The two arch ribs (or lower chords) are built-up of curved channel segments with lacing. The segments have riveted splice plates. The arches support verticals and diagonals of back-to-back angles with lacing. The upper chords are angles with lacing. Built-up floorbeams are supported atop the verticals. Everything from the deck up is modern material, including the longitudinal welded steel beams at the deck fasciae. The bridge has beam guide rails.


Everything from the deck up is modern material (ca. 1975, ca. 2005), including railings. The arch has loss of fabric from deterioration of the steel.

Summary of Significance

The steel arch bridge was selected eligible by ODOT's prior inventory. Other than replacement of the railings (replacing railings that were themselves replacements), there has been no change in the bridge's status. There are 23 steel arches in the ODOT inventory dating from 1897 to 1958. They range from mundane short-span culverts to monumental bridges, like the 1935 Lorain Road Viaduct in Cleveland. This bridge, which is not aesthetic, falls somewhere in between. It is the second oldest steel arch in the inventory, but for its period it was not innovative technology and was a somewhat odd choice for a three-span bridge of this length.


The bridge is one of the five extant examples of the type that was used for a variety of crossing types, from major, monumental bridges like the 1917 Detroit-Superior Viaduct in Cleveland to the 1952 Gordon Park Pedestrian bridge over the Memorial Shoreway. It has moderate significance as it is not one of the monumental ones.

Bridge Considered Historic By Survey: Yes


Photo Galleries and Videos: Marengo Street Bridge

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Maps and Links: Marengo Street Bridge

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