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dam construction

AMSTERDAM, N.Y. (AP) The Harrower Pond Dam, cracked and crumbling, with saplings sprouting from its walls, has been repeatedly cited by state and federal inspectors for safety violations over the past four decades. But repairs are unlikely anytime soon because nobody accepts ownership of the 150-year-old dam at a former mill site.

CONCORD, N.H. (AP) Merrymeeting Lake is like so many others in the New Hampshire woods, a bucolic summer getaway of cabins and second homes where vacationers sail, swim and fish. Like dozens of other lakes in the state, it also has a problem that is hidden from most of the people who come to enjoy it.

The Waterbury Dam, which was built in 1938 and repaired numerous times, most recently in 2007, needs additional work, which may be completed if it receives federal funding. Sen. Patrick Leahy said money for repairs is included in a $20 million appropriation included in the Senate's Energy and Water Appropriations bill, which must be approved by the full Congress and signed by the president.

After 15 years in the planning stages, a new dam project in Colorado may be underway by the end of the year. Designs created by Stantec for the 360-ft. tall, 3,500-ft. long dam at the 90,000-acre Chimney Hollow Reservoir in northern Colorado were finished in early June and will next be sent to the state engineer for approval.

Granite (GVA) has been awarded a $39 million contract by the U.S. Army Corps of Engineers (USACE) for modifications to the Lewisville Dam in Lewisville, Texas. Granite will book the project into its second quarter 2019 backlog. Scope of work includes the construction of upstream embankment modifications, crest road improvements, conduit filter, waterline relocations, seepage collection systems, improved roadway system and associated work.

On Feb. 7, 2017, a 200-ft. pothole opened up in the main spillway of the Oroville Dam in northern California. With snowpack at 150 percent above normal in the Sierra mountains, and Lake Oroville still rising, officials reduced the amount of flow on the main spillway.

Clement Brothers Company Inc. of Hickory, N.C., held a $15.4 million contract to construct the Corps of Engineers Carter Dam Project in Murry County, Ga. The dam is 445 ft. high, then the highest dam east of the Mississippi River, and 2,050 ft. long. The dam was built on the Coosawattee River.

OROVILLE, Calif. (AP) An epic winter of rain and snow has refilled California's reservoirs and pressed into service a spillway at the nation's tallest dam on April 2, a $1 billion structure that drained excess water for the first time since it crumbled two years ago and drove hundreds of thousands to flee the threat of catastrophic flooding.

Four years ago, a sharp-eyed fisherman first noticed something was wrong at Utah's Steinaker Dam and Reservoir in Northeastern Utah. Bureau of Reclamation managers wasted no time in checking it out. "Any time you see anything change on a dam, that is cause for concern," said Paul Christensen, assistant area manager of the Bureau of Reclamation Provo office.

The $33 million construction of a new East Reservoir dam for the Ohio Department of Natural Resources (ODNR) in Portage Lakes State Park in Coventry Township, Summit County started last December and is expected to be completed this spring. The new dam is located in front of the existing one built around 1840, and the project, awarded to the Ruhlin Company, is part of the ODNR's ongoing initiative to repair and upgrade its aging dam infrastructure.

Twenty million dollars of pre-construction work is under way at the Shasta Dam and reservoir in advance of a $1.5 billion project to raise the dam 18.5 ft. Shasta Dam is the largest reservoir in California and second largest in the United States after Grand Cooley.