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Newport News Now

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Newport News Now is a daily e-newsletter that launched in March 2016. Articles that ran in our newsletter between March 2016 and March 2018 are available on these pages. Newsletters produced beginning in April 2018 can be viewed on our new daily newsletter page.

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Jan 05

Lee Hall Dam Replacement – Update

Posted on January 5, 2017 at 8:15 AM by Communications Department

In 2015, City Council appropriated $16.7 million to replace the Lee Hall Reservoir Dam with a new dam that meets or exceeds all dam safety regulations that had been enacted in recent years. Work began in August 2015 and the construction is ongoing.
Phase1 Dam_SC
The Lee Hall water treatment plant has remained in service during construction and staff has taken special care to ensure that the ability to pump source water from the reservoir is uninterrupted while still accommodating construction. The project is divided into four phases with Phase 1 - the construction of the new 165’ wide concrete principal spillway channel and utility relocations and Phase 2 - activities to construct the armored emergency spillway embankment, completed. Phase 2 work also included embankment modifications in other sections of the dam to increase ease of dam maintenance and inspection. A new outlet works facility will be constructed in Phase 3 and Phase 4 includes such tasks as the completion of the labyrinth spillway and site restoration.
Phase2 Dam_SC
The new armored emergency spillway extends an impressive 1,115 feet in length and is comprised of Articulated Concrete Block which extends from the top of the dam to the downstream toe of the dam. This new emergency spillway will assist in transferring water downstream in the event of an embankment overflow flooding event.