Lee Hall Dam Replacement
Updated May 2017
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. The contractor began work in August 2015 and construction is ongoing. The project is divided into four phases to sequence the work in a way that mitigates flood risks while still allowing for shared uses of the reservoir by stakeholders.
Phases 1 and 2 of this project has been completed and Phase 3 is underway. Phase 1 activities to construct a new 165’ wide concrete principal spillway channel were completed in mid-2016. Phase 2 activities to construct the new 1,115 foot long armored emergency spillway embankment were completed in late 2016. Phase 3, which is currently underway is scheduled for completion by mid-2017 includes a new outlet works facility. Phase 4 activities to complete the new principal spillway, remove the old hydraulic controls from the Lee Hall Upper pool, and complete the project are scheduled for a late 2017 completion.
The new Lee Hall Dam replaces a 100+ year old dam infrastructure. The City’s investment in this critical infrastructure should provide many decades of protection to the Peninsula’s water supply and flood protection for downstream properties.
Updated: September 2016
A significant amount of work has been completed to include the relocation of a high-pressure petroleum pipeline and a 30-inch finished water pipeline, both of which were needed to accommodate the expanded footprint of the new dam. Construction of the concrete principal spillway channel is nearly complete, and construction of an armored emergency spillway is underway and should be completed in early 2017.
Because the Lee Hall treatment plant must remain in service during construction, construction of the new dam’s concrete principal spillway is a complex operation. Staff has taken special care to ensure that the ability to pump source water from the reservoir is not be impeded during the project.
__________________Updated: June 2016Construction for the new Lee Hall Reservoir Dam is underway. In May 2015, City Council appropriated $16.7 million to replace the 100 year old Lee Hall Reservoir Dam with a new dam that meets all dam safety regulations implemented in recent years. Lee Hall Reservoir plays a central role in the Peninsula’s drinking water supply and recreation for Newport News Park. As such, a great deal of planning and coordination went into allowing for the shared uses of the reservoir while still meeting the practical construction requirements for the replacement of this 19th century dam with a 21st century state of the art facility. The City’s investment in this critical infrastructure should provide many decades of protection to the Peninsula’s water supply and flood protection for downstream properties.
Construction for this project began in August 2015. The scope of the project includes the total demolition and replacement of the Lee Hall Lower Dam, the construction of a new armored auxiliary spillway, the removal of hydraulic control structures on the Lee Hall Upper Outlet Works, and the construction of a new Lee Hall Outlet Works facility. Many ancillary construction efforts are required to successfully build the proposed facilities including: utility relocations, culvert and curb modifications at Fort Eustis Boulevard, and a continuous dewatering operation to provide the appropriate conditions for construction of new facilities.
The project is divided into four phases to sequence the work in a way that mitigates flood risks while still allowing for shared uses of the reservoir by stakeholders. Phase 1 construction activities are wrapping up this summer. Construction for this project should conclude in late 2017.