Putnam Street Bridge

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Putnam Street Bridge
Putnam Street Bridge 2008.jpg
Carries Putnam Street
Crosses Muskingum River
Locale Marietta, Ohio
Maintained by Washington County, Ohio
ID number 1913: 8438536[1]
1999: 8430128[2]
Material 1913: Steel[1]
1999: Concrete (continuous)[2]
Total length 1913: 237.7 metres (780 ft)[1]
1999: 209.1 metres (686 ft)[2]
Width 1913: 10.9 metres (36 ft)[1]
1999: 15.6 metres (51 ft)[2]
Piers in water 1880: 7
1913: 4
1999: 2
Load limit 1913: 6.3 metric tons (6.9 short tons)[1]
1999: 40.5 metric tons (44.6 short tons)[2]
Vertical clearance 1913: 4.88 metres (16.0 ft)[1]
Clearance below 1913: 10.4 metres (34 ft)[1]
1999: 10.7 metres (35 ft)[2]
Opened 1880
Daily traffic 1979: 12,000[1]
1999: 17,150[2]
Heritage status 1913: NRHP District contributing structure
Coordinates 39°24′49″N 81°27′28″W﻿ / ﻿39.41361°N 81.45778°W﻿ / 39.41361; -81.45778Coordinates: 39°24′49″N 81°27′28″W﻿ / ﻿39.41361°N 81.45778°W﻿ / 39.41361; -81.45778

The Putnam Street Bridge, also known as the Marietta Bridge, is a historical United States river crossing that connects Marietta, Ohio with its Fort Harmar district. The original 1880 bridge was the first free crossing of the Muskingum River. The 1913 bridge was a contributing structure to the Harmar Historic District. The bridge crosses the Muskingum, just above its confluence with the Ohio River.


The original bridge was constructed in 1880. It had two swing spans as the lock of a nearby dam was in the process of being moved from the west to east side. That bridge was wrecked by the 1884 flood. A second bridge was built on the same piers, also with two swing spans. An increase in traffic necessitated a new bridge in 1900, which was built on 4 new stone piers with a single swing section. That bridge was swept away in the Ohio flood of 1913.[3]

The 1913 bridge in 1996

In 1913-4 a new bridge was built on the same piers and abutments, but was raised up 4 feet (1.2 m) to reduce the risk of further flood damage.[3] The bridge was built by the Nelson-Merydith Company of Marietta. In 1951, the timber deck was replaced by concrete. In 1972 the timber sidewalks were replaced and repairs were made to the structure. In 1993 structural reinforcements were added. On 27 April 2000, this span was demolished using 400 linear shaped charges.[4]

1999 Putnam Street Bridge. 1900 bridge pier in foreground

In 1999 a new bridge was constructed just down stream of the 1880 crossing. The new bridge is the first in Ohio to use the cast-in-place reinforced concrete box with the balanced cantilever method of construction.[3] The new bridge, while of a new design, incorporates architectural details of the older bridge. The new bridge cost US$11.4 million.[4]


The bridge connects the Harmar and Marietta Historic Districts and the 1913 bridge was a contributing structure of the former. The bridge was the primary crossing of the Muskingum until 1953 (when the Washington Street Bridge opened).


Historical plaque
  1. ^ a b c d e f g h "2001 NBI ASCII Files". Retrieved 2009-02-27. 
  2. ^ a b c d e f g "2008 NBI ASCII Files". Retrieved 2009-02-27. 
  3. ^ a b c Historical Plaque at site.
  4. ^ a b "Demolition of Putnam Street Bridge". Retrieved 2009-02-25. 

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