Once complete, the 18-foot diameter, approximately 1-mile-long subterranean North Tunnel will be able to move 26,000 gallons of water per second from the West End area of Ellicott City to the ...
Howard County's Ellicott City Safe and Sound plan allowed for the removal of 100,000 pounds of debris from channels in and ...
The Extended North Tunnel project in the Ellicott City Safe and Sound flood mitigation ... a shaft dug into the ground surrounded by muddy water, Ball announced that the tunnel project is set ...