Monday, February 13, 2017

Storm Water Tank Installation to Close Sprague Avenue Downtown

Construction of a new stormwater collection tank will close Sprague Avenue at Jefferson Street starting today for at least the next five weeks.

The Spokesman-Review reports that workers are redoing utility lines to get ready for the excavation of city-owned property at Sprague and Adams Street just west of KHQ-TV. Westbound traffic on Sprague will be detoured at Madison or Jefferson Street to Riverside Avenue to the north. The intersection of Cedar, Riverside Avenue and Sprague will be kept open as much as possible.

Spokane transit buses will use Riverside Avenue at Jefferson.

The plan will build a 2.3 million gallon tank where there used to be a city fire station. The tank will collect stormwater from the southwest section of the South Hill and the west end of the downtown area.

For years, runoff from storms and snow melt has caused sewage and stormwater to be released directly into the Spokane River, to protect the wastewater treatment plant next to Riverside State Park from being inundated by storms. The tank will store stormwater during heavy runoff, then send it slowly to the treatment plant to be processed into cleaned water.

Numerous such tanks are going into the ground around the city, including a $20 million tank holding 2.2 million gallons just west of City Hall, which will begin construction this year.
The projects are part of a multiyear effort to reduce pollution of the Spokane River under the federal Clean Water Act.

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SRTC is the federally designated Metropolitan Planning Organization (MPO) for Spokane County. Urbanized areas with populations exceeding 50,000 people are required to have an MPO. SRTC was formed to address the county's transportation planning needs. It provides coordination in planning between the public, cities, small towns, the county, the state, transit providers, and tribes.

SRTC offers services including transportation monitoring, transportation modeling, census information analysis, travel demand forecasting, historical traffic count analysis, geographic information systems, and trip generation rates.