Stormwater Management
One inch of rain falling on our 16,000-acre watershed generates 434 million gallons of stormwater. All that water has to go somewhere! CDID #1 makes sure the water gets where it needs to go in order to keep the properties behind our levees dry. Sloughs, Ditches & DrainsWe maintain roughly 35 miles of internal sloughs, ditches and drains - some natural, some improved and some entirely man made. These drainage ways serve two purposes - they collect and convey stormwater to our pumping stations, and they provide storage for heavy rainfall events which can exceed our pumping capacity. |  |
Pump Stations
CDID #1 operates seven pump stations which represent a total pumping capacity of 1 billion gallons per day. Our pump stations are located throughout Longview and are critical for removing stormwater and preventing flooding. All of the water we pump out of our ditches is unfiltered and untreated, and discharges to the Columbia River.
Several of our drainages are built on easements, which means anyone wanting to do work within the drainage right-of-way or discharge to the ditch must apply for a permit.