Clarke Avenue Bank Stabilization

Application/Permit Number: Z1300042SCUP

Location

Peaceful Valley Neighborhood. Site is addressed as 2334 Clarke Avenue and is located to the east of Clarke Avenue Lift Station. Parcel numbers 25133.1716 and 25133.1715. SW ¼ of Section 13, T25N, R42E. Site is located on the south bank of the Spokane River.

Description of Project

This project is needed to stabilize the slope of the riverbank containing a 15” sanitary sewer line; without protective measures this erosion could cause the sewer line to break and cause a discharge of raw sewage into the river. The project involves placing a 12” to 24” diameter rock revetment along approximately 320 linear feet of eroded riverbank. The revetment will be keyed into the base of the slope about three feet deep and extend about six feet height (about 12” above he OHWM). A temporary construction road will be graded along the shoreline from the Clark Avenue Lift station to the project area to provide access for equipment and material, this access will require removal of a mature hawthorn tree. Willow and cottonwood cuttings will be planted at the base of the revetment using a stinger method that will place the cuttings near the low water elevation to promote growth. The revetment voids will be filled with soil, hydro seeded with a native grass mix and covered with coir matting. The temporary construction access will be removed, riprap placed and planted as described above.

Applicant

City of Spokane Wastewater Department

Notice of Application and Public Comment Period

Notice of Application and Public Hearing (PDF 28 KB)

Written comments may be submitted on this application prior to August 23, 2013 at 5 p.m.

There will be a Public Hearing on this proposal before the City of Spokane Hearing Examiner on September 5, 2013 in the Briefing Center, Lower Level of City Hall, 808 West Spokane Falls Boulevard, Spokane, WA 99201. Any person may submit written comments on the proposal and/or appear at the public hearing.

Related Documents


Contact Information

CSO Information
509.625.7900