Lake Manassas T. Nelson Elliot Dam

Item C-107 #1s

Language
Page 466, line 41, before "Included" insert "A."
Page 467, after line 14, insert:
"B.  Included in these amounts is $5,000,000 the second year from bond proceeds to match the local contribution of the City of Manassas for improvements to the Lake Manassas T. Nelson Elliot Dam."

Explanation
(This amendment provides 50 percent match funding for the City of Manassas for modifications to a City owned dam that are necessary for it to meet new state dam safety requirements and to remain operational as a potable water supplier to over 100,000 people in the region, including several major industrial facilities. The T. Nelson Elliot Dam was completed in 1971 and created Lake Manassas, which covers 880 acres. The dam is currently operating under a conditional Operation and Maintenance Certificate from the Commonwealth. The dam was designed to withstand one-half of the calculated Probable Maximum Flood (PMF), which was the standard at the time of construction. Due to downstream development and new safety standards, the dam must be rebuilt to withstand a full PMF storm. The dam is classified as a Class 1 risk dam, meaning failure of the dam could result in potential loss of life and property, in addition to the loss of the drinking water supply. The flood inundation zone contains 3,335 properties, including hundreds of homes, schools, major highway bridges and the Manassas Regional Airport.)