Twin Falls Discuss Impacts on Canyon Springs Grade and Auger Falls Recreation Area


By Paul Johnson

Twin Falls, Idaho ( KMVT-TV / KSVT-TV ) - The City of Twin Falls will host an open house at 5:30 p.m. Wednesday, April 2 at the Twin Falls City Council Chambers to discuss the Wastewater Treatment Plant expansion project, which will affect the Canyon Springs Grade and Auger Falls Recreation Area. The purpose of the open house is to inform citizens about the project, and to get feedback on plans to ensure pedestrian and vehicular safety while also maintaining accessibility during the project.
The City will begin the largest expansion of the wastewater treatment facility since 1965, so the City will be asking citizens to share the roads with construction vehicles on the Canyon Springs Grade and in Auger Falls during the duration of the project.
Contractors will begin removing dirt from the City of Twin Falls Wastewater Treatment Plant in mid-April, allowing the City to begin construction on new clarifier and aeration tanks that will nearly double the capacity of the plant from 9.6 million gallons per day to 16 million gallons per day. The City expects contractors to haul between 30 and 40 loads of cleanfill dirt each day from the Wastewater Treatment Plant to Auger Falls, where it will be used to further rehabilitation efforts on the wetlands. Because there will be significant construction traffic on the roads to Auger Falls, the City is asking citizens to avoid using the recreation area between 8 a.m. and 5:30 p.m. Monday through Friday. This will allow the contractor to more quickly – and safely – complete the first phase of the construction project. Citizens are welcome to use the recreation area from dusk till dawn on Saturdays and Sundays, as contractors will not be using the roadways during the weekends.
In addition to construction traffic at Auger Falls, the City expects contractors to begin hauling cement and large equipment down the Canyon Springs Grade to the Wastewater Treatment Plant beginning in mid-summer. The City will not close the Canyon Springs Grade but it is encouraging citizens to use caution as large trucks are expected to make between 20 and 30 trips down the grade on weekdays.
Construction on the wastewater treatment plant expansion will last through the summer of 2014 and is expected to be completed by late-summer 2015. The City will continue to seek public input to ensure that the Snake River Canyon and Auger Falls remain safe and accessible during construction. Citizens can also receive updates by subscribing to city alerts on its website at under the ‘Notify Me’ tab. Citizens can also call Joshua Palmer, City of Twin Falls Public Information Officer, at 735-7312 for more information.
The City will also discuss the installation of a new sewer line from the top of Canyon Springs Road to the east toward Fillmore Street, as well as the new City of Twin Falls ordinance to protect drinking water by testing and installing backflow devices.

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