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22

NASSCO Report: Manholes

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NASSCO Report: Manholes
Trenchless Technology: Manholes Rehabilitation Case Study: Chicago -- Last Manhole Standing
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15

Managing Manhole Maintenance

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Managing Manhole Maintenance
Des Moines, Iowa, is a quiet, prosperous community of 203,000. But Iowa’s largest city has been severely tested by two major flood events in recent decades: The ‘Great Flood of 1993’ was the most devastating flood in U.S. history, according to the U.S. Geological Survey, and the Iowa Flood of 2008 was so devastating that it caused about $64 billion worth of damages and is referred to as, ‘Iowa’s Katrina.’
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Georgia Military Town Overcomes Stormwater Rehabilitation Challanges
Warner Robins, GA, is a military town named in honor of Brigadier General Augustine Warner Robins. The city is built around Robins Air Force Base, Georgia’s largest employer. Its military background has had consequences for the town’s infrastructure. Rapid wartime expansion meant that sewers and other assets were put in quickly, with relatively little planning or inspection. As a result, “We have a lot of older corrugated metal pipe [CMP] storm sewer, even under roads,” says stormwater ma...
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Trenchless storm sewer rehabilitation on Hilton Head Island
Hilton Head Island is a resort town off the coast of South Carolina. At 55.5 sq miles, it is a big island—second only to Long Island, N.Y., as the largest island on the East Coast. It also is big economically. Tourism brings in about $1.5 billion annually, and much of the island is covered in gated communities and golf courses. Infrastructure is a little haphazard because of rapid growth.
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Rehabilitating a city sewer system with centrifugally cast concrete pipe!
About 18 months ago, when he was just settling into his new job as Storm Water and Conservation Superintendent of Hays, Kan., Nicholas A. Willis decided to take a closer look at the storm water sewers underneath the picturesque brick streets in the city's center. He knew from records that the sewer was 48-in. arched corrugated metal pipe (CMP), and a little over 50 years old.
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14

Handling Wet, Emergency Conditions

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Handling Wet, Emergency Conditions
The intersection of Routes 9 and 440 with the Garden State Parkway is one of New Jersey's busiest and most vital cloverleaf complexes. Sinkholes began to appear there after Hurricane Irene in 2011.
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Smuggler’s Notch ski resort, near Jeffersonville, Vermont, was established in 1956 and is New England’s fourth largest resort area. It is built around Morse, Madonna, and Sterling Mountains. Record storms in the Northeast, and the resulting record snowmelt, caused near flooding at Smuggler’s Notch and two 72-inch ‘boilerplate’ culverts, each 130 feet long, were filled to near capacity with fast moving water.
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The Florida Department of Transportation (FDOT) knew that the big box culvert running under State Road 64, in Manatee County in downtown Bradenton, absolutely had to be replaced or rehabilitated — but how? For structural reasons, replacement seemed like the best choice, but shutting down this major commuting route was ruled out by city, county, and state officials.
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The Sabine River Authority (SRA) was created in 1949 to equitably distribute the waters of the Sabine River and its tributaries. As part of this distribution, “We provide surface water to 11 industrial customers, such as Conoco and Louisiana Pigment, for cooling and processing,” says SRA facility manager Mike Carr."
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14

MOP 120 Trenchless Renewal

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Climbing New Peaks to Infrastructure Reliability. Renew, Rehab and Reinvest; MOP 120 Trenchless Renewal of Culverts & Storm Sewers; Shotcrete Lining; Centrifugally Cast Pneumatically Gunned.
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