Engineers Week: New pressure zone increases water pressure and fire flows in Dover
NH engineers to celebrate special week with a banquet Thursday
The most significant components included a new concrete water-storage tank in the vicinity of Long Hill Road, a booster pumping station on Lowell Avenue, and new 12-inch water main connecting the tank to the distribution system.
Upon completion of the $4.9 million project last fall, average water pressures increased by 30 to 35 psi inside the North End Pressure Zone.
Underwood Engineers (Portsmouth and Concord) was hired by the city to prepare design drawings and specifications, provide construction administration and resident engineering services, and assist with funding applications and administration.
The new 767,000-gallon pre-stressed wire-wound concrete water tank was built by Preload, Inc. of Happauge, N.Y. At 74 feet in height, Dover's is one of the tallest pre-stressed wire-wound concrete standpipes constructed to date. Concrete tanks are advantageous because they do not require painting and resist ice damage better than other types of tanks. A mixing system inside the tank will improve water quality and reduce ice formation.
The new 12-inch water main on Long Hill Road and Sixth Street connects the new tank to the existing distribution system. Construction of the main by DeFelice Corp. of Dracut, Mass., was coordinated with reconstruction of Long Hill Road. A booster pumping station was constructed by Apex Construction of Rochester, at the site of the city's Lowell Avenue iron and manganese filtration plant.
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