Posted on November 10, 2016
By Howard Yune, Napa Valley Register
After a hiatus of several weeks, the federal project to dredge the Napa River will resume Wednesday morning, city officials said.
A contractor hired by the U.S. Army Corps of Engineers will begin excavating the river near the Napa Pipe site south of downtown, according to city spokeswoman Jaina French.
Dredging will shift to the city core, starting near the Third Street bridge, on Monday. The Corps did not want to create noise near downtown during the Napa Valley Film Festival, which is slated for Wednesday to Sunday, she said.
Corps officials have advised those living or working near the river to expect equipment noises peaking at 90 to 100 decibels, continuing for a day or two in each segment as work moves from north to south.
Napa River excavation is meant to correct silting problems that have increased the hazards for boaters since the last federally funded maintenance in 1998. The project will cover various sections of the waterway in a 13-mile stretch from Napa south to Vallejo, creating a channel with a minimum depth of 9 feet.
The Corps expects to clear 60,000 cubic yards of material between the Napa Third Street bridge south to Asylum Slough near Highway 37.
Spoils from the riverbed will be deposited both at the site of the future Napa Pipe housing and retail community and at a second location off Imola Avenue.
Source: Napa Valley Register
