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Black Street Bridge

Black Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: September 22, 2019

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Key Facts

Facility Carried / Feature Intersected
Black Street Over Great Miami River
Location
Hamilton: Butler County, Ohio: United States
Construction Date and Builder / Engineer
1922 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
93 Feet (28 Meters)
Structure Length
708 Feet (216 Meters)
Roadway Width
28 Feet (8.53 Meters)
Spans
7 Main Span(s)
NBI Number
960020

Historic Significance Rating (HSR)

Bridge Documentation

This bridge is a long, multi-span concrete arch bridge noted for its architectural beauty and lack of alteration. Many such bridges that used to exist in Ohio in cities like Dayton and Columbus have been demolished, therefore this bridge has become fairly rare.

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

View Historical Article About This Bridge

Information and Findings From Ohio's Historic Bridge Inventory

Setting/Context

The bridge carries a 2 lane road and sidewalks over the Great Miami River at Hamilton. There are railroad facilities at one end of the bridge and a commercial district at the other.

Physical Description

The 7 span, 708'-long, reinforced-concrete arch bridge has paneled concrete parapets with oversize blocky end posts topped by urns. The spandrels are paneled. The arch rings have shadow lines for accent. There are paneled pilasters at the piers. The bridge is supported on bullnosed piers with horizontal scoring.

Summary of Significance

The 1922 deck arch bridge is a complete and nicely detailed, multiple-span example. The eligible recommendation of the prior inventory remains appropriate. The 2007-08 ODOT Historic Bridge Inventory Update (Phase 1A) has identified more than 225 extant, reinforced-concrete, closed-spandrel arch bridges dating from 1896 to 1959. Fewer than 30 examples date to before 1910. These tend to represent innovative technology or early attempts at exploring the aesthetic qualities of the moldable material; earlier examples tend to have higher historical and technological significance than the later examples. Use of the reinforced-concrete, closed-spandrel arch technology reached its height during the 1910s and 1920s with more than 80% of Ohio's surviving examples dating from those two decades. The later examples generally do not represent innovative technology, although they sometimes have high aesthetic merit or significant settings/contexts. "Closed spandrel arch bridges are the most basic of reinforced concrete bridge types. Closed spandrel means that the area between the deck and the arch ring was filled in. The spandrel wall actually serves as a retaining wall in the bridge, holding the fill material. Live loads are borne by the fill material and by the spandrel walls. The arch may be constructed either as a single structural element (barrel) or in separate parallel longitudinal ribs. The barrel arch design has some structural and visual similarities to stone arch bridges. The barrel arch is also sometimes faced with brick or stone, making it appear similar to a masonry arch bridge. This type of bridge is suitable for short span lengths. Closed spandrel concrete arches predate open spandrels, as the closed spandrel type harkens back to the stone arches that the earliest forms imitated. This type was not built for long as engineers realized that significant material could be saved and a reduction in weight could be achieved by eliminating the filled section. Hence, open spandrels were born. Filled spandrel concrete arches date primarily from the earliest decades of reinforced concrete (1890s through 1920s). They are not as common as many of the standardized bridge types built during this same era, such as concrete slabs and girders. They are significant because they are not common and represent the evolution of concrete technology. To be considered significant, filled spandrel arches should have integrity, through the retention of their character-defining features: arch ring, barrel, spandrel wall, railing or parapet, end posts, piers and/or abutments and wingwalls." [From: A Context for Common Historic Bridge Types by Parsons Brinckerhoff, October 2005]

Justification

The 1922 reinforced-concrete deck arch bridge has a high level of significance because of its association with the Miami Conservancy District's flood-control project. It is one of two arch bridges that were built directly by the Conservancy following the Great Flood of 1913. The other bridge (Adams Street in Troy) was recently replaced. The bridge is one of over 210 extant examples built in the state starting in 1897. It was during the first decade of the 20th century that the bridge type gained currency, and in Ohio the golden age of reinforced concrete arches was the two decades following World War I when over 140 of the remaining examples were constructed by cities, counties, and the bridge division of the state highway department under the leadership of J.R. Burkey and D. H. Overman.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: Black Street Bridge

 
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