Jamestown Bridge

Last updated
JamestownBridge.tif
Jamestown Bridge
Old Jamestown Bridge
Jamestown Bridge, over West Passage, Narragansett Bay, R. I (71098).jpg
The Jamestown Bridge
Coordinates 41°31′42.14″N71°24′11.34″W / 41.5283722°N 71.4031500°W / 41.5283722; -71.4031500
Carries2 lanes of Rhode Island 138.svg Route 138
CrossesWest passage of Narragansett Bay
Locale North Kingstown and Jamestown, Rhode Island
Official nameJamestown Bridge
Maintained byJamestown Bridge Commission (1940–1969)
Rhode Island Department of Transportation (1969–1992)
Characteristics
Design Cantilever truss
Total length6,892 feet (2,101 m)
Width22 feet (6.7 m)
Height235 feet (72 m)
Longest span640 feet (200 m)
Clearance below 135 feet (41 m)
History
Construction startJanuary 1939
Construction endJuly 1940
OpenedJuly 27, 1940
ClosedOctober 8, 1992 (demolished on April 18, 2006)
Statistics
Toll$0.25 (originally $0.90)
(collected 1940–1969)
Location
Jamestown Bridge

The Jamestown Bridge (usually referred to as the Old Jamestown Bridge to avoid confusion with its replacement, the Jamestown Verrazzano Bridge) was a cantilever truss bridge that connected Conanicut Island to mainland North Kingstown, Rhode Island, spanning the West passage of Narragansett Bay. The bridge first opened to traffic in 1940, replacing ferry service as the primary connection for the town of Jamestown, situated on Conanicut Island. It was constructed for just over $3 million 1940 USD, which was paid for by tolls until June 28, 1969. With a total length of 6,892 feet (2,100 m), the Jamestown Bridge was the third longest in Rhode Island at the time of its destruction, ranking behind its replacement, the adjacent 7,350-foot (2,240 m) Jamestown Verrazzano Bridge, and the 11,248-foot (3,428 m) Claiborne Pell Newport Bridge connecting Conanicut Island to Aquidneck Island and Newport. The Jamestown Bridge was closed to vehicular traffic on October 8, 1992, and its main span was destroyed through a controlled demolition on April 18, 2006.

Contents

History

Navigating around Narragansett Bay had proved troublesome since the colonial era, the first ferry operation began in 1675 introduced an alternate to the long route around Providence, Rhode Island. Steam service in the West Passage began in 1888 and reduced travel times, but subject to weather conditions. In 1920, the first plans for the Jamestown Bridge began and it was stimulated by the Newport Ferry Company's financial troubles. In 1934, during the Great Depression, the State of Rhode Island sought funding from the United States federal government to construct bridges over both the West Passage and East Passage of the bay. The plans were well-supported and passed the Rhode Island House of Representatives by a 96-to-1 vote, and were approved by President Franklin Roosevelt. The minor opposition to the bridge's construction was quelled after the 1938 New England hurricane destroyed the ferry docks and one of the ferryboats on September 21, 1938, stopping ferry service. [1]

Aerial view looking north east Aerial View - Jamestown Bridge.jpg
Aerial view looking north east

The bridge was designed by Parsons, Klapp, Brinckerhoff and Douglass and called for a 6,982-foot-long (2,128 m) bridge with 69 spans with a total cost of $3 million. The bridge was delayed by two months, but was completed for better than $100,000 under budget. A crew of nearly 200 constructed the bridge and the work was completed without a single fatality. This claim however is contested as a fatality took place during the construction of the coffer dams on September 18, 1939. [2] On July 27, 1940, the bridge opened for traffic and a 90 cent toll was charged on the North Kingstown side. The toll would later be reduced to 35 cents and 25 cents before being removed in 1969, following the completion of the Newport (Pell) Bridge. [1] A formal dedication of the bridge commenced on the weekend of August 2 through August 4, 1940, with a military marine parade on the final day. [3]

Structure

The bridge consisted of 69 spans with a large continuous cantilever Warren truss centerpiece. [1] The 640 ft (200 m) main span was 135 ft (41 m) above the western portion of the Narragansett Bay. The bridge was long thought to be a danger to motorists, consisting of only two undivided lanes, and during the summer months, the eastbound lane was usually at a standstill due to vacationers traveling to Newport via the main route from the mainland. Its steep climb proved challenging for some vehicles and with no passing lanes or shoulders, hazardous conditions resulted when stalled vehicles were on the bridge. The roadway deck through the cantilevered span was an open steel-grid deck, similar to that of the Castleton Bridge just south of Albany, New York, or the now-demolished Sikorsky Bridge on the Merritt Parkway in Connecticut. The deck proved to be extremely slippery when wet. After the bridge began to show structural problems with age, RIDOT began construction of the Jamestown-Verrazano Bridge in 1985. The new bridge, which opened on October 17, 1992, includes four divided lanes of traffic with shoulders. [1]

Service

Old & New Jamestown Bridges Jamestown Bridges.jpg
Old & New Jamestown Bridges

The bridge is reported to have inspired fear in motorists because of its open grates, which allowed the motorists to peer down into the Narragansett Bay about 150 feet (46 m) below, and because the bridge would shake in high winds. [4] Head-on collisions on the 22-foot-wide (6.7 m) undivided bridge were reported to be common, and the steel grid pavement was noted as "treacherous" when wet. [5]

Demolition

The United States Coast Guard had long declared the Jamestown Bridge to be a navigation hazard and requested that the state of Rhode Island dismantle the eastern two thirds of it. The Sierra Club, an environmental organization, suggested to instead turn the bridge into a bike route and walkway. However, the aging structure proved to be in far worse condition than previously thought, prompting officials to go ahead with removing the entire structure.

The Jamestown Bridge was destroyed in a controlled demolition in April 2006. Jamestown Bridge demolition2.jpg
The Jamestown Bridge was destroyed in a controlled demolition in April 2006.

On April 18, 2006, the main span of the Jamestown Bridge was brought down by Department of Transportation employee Wilfred Hernandez, using 75 pounds (34 kg) of RDX explosives and 350 shaped charges. TNT charges were later used to remove the concrete piers. On May 18, 2006, crews imploded the trusses that once carried the side spans. Throughout mid-2006, workers removed the remaining support piers and low-level approach spans west of the main channel. The extreme western portion of the bridge was not demolished with the remains of the bridge during 2006, as officials planned to renovate and convert it into a fishing pier, but ultimately it was removed in 2010 when renovation and cleanup proved too costly. That last part was then demolished in the same year. The total cost for removal of the Jamestown Bridge was US$22 million. The demolished steel superstructure was floated away for recycling, while concrete from the bridge piers was used to create artificial reefs below the mouth of Narragansett Bay.

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References

Approximate location Jamestownbridge.JPG
Approximate location
  1. 1 2 3 4 "Jamestown-Verrazano Bridge: Historic Overview". BostonRoads.com. Eastern Roads. Retrieved 2008-02-09.
  2. ↑ "First Fatality Occurs At Jamestown Bridge Site". The Day. September 19, 1939. Retrieved 5 May 2014.
  3. ↑ "Gala Program Set For Dedication Of Jamestown Bridge". The Day. July 24, 1940. Retrieved 5 May 2014.
  4. ↑ AP (April 18, 2006). "Old Jamestown Bridge To Be Destroyed". Sun Journal. Retrieved 5 May 2014.
  5. ↑ "Big's not better. Planners draw monstrosity for new Jamestown bridge". The Day. November 6, 1981. Retrieved 5 May 2014.
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