May 2006 - Laserfiche WebLink

Home Browse Search

STAFF REPORT CONCERNING APPLICATION FOR A CERTIFICATE OF APPROPRIATENESS Date: May 5, 2006 Application Number: 2006-0505 Property Location: Shetterley Park, 1007-1029 Riverside Drive Property Owner: City of South Bend Landmark or District Designation: Riverside Drive Local Historic District Rating: Defining Landscape Feature STATEMENT OF SIGNIFICANCE/HISTORIC CONTEXT: Shetterley Park is an element of the Riverside Drive District that sets it apart from other Local Historic Districts and provides a natural green space enclosure along Riverside Drive that serves as a buffer from urban noise. It serves as a tie to the St. Joseph River by providing usable space close to the water and a visual link to the West North Shore Local Historic District. APPLICATION ITEMS: This project is to replace CSO #6 with a newly constructed CSO #6 located almost parallel to the east of the current one through Shetterley Park, down the bluff to the St. Joseph River. The project will begin at the manhole at Leland and Riverside. A temporary construction staging area will be located in the lawn area at the top of the hill slope. Portions of the existing pipe and outfall structure maybe removed for the construction of the new one. Outfall pipe segments that are not removed will be abandoned in place and filled with lean concrete. Tree clearing and a temporary approach path will be required to access the construction areas. Excavation depths of 30 vertical feet or greater will be required for this new construction. Disturbed areas will be stabilized with erosion control blanket and seeded with grass following construction. Re -vegetation of the disturbed hill slope areas with tree seedlings will be completed. Deep-rooted vegetation will not be replaced above revised pipe alignment. However, shallow rooted trees, shrubs, grasses, groundcover or bushes may be installed. The new outfall structure will contain a sump and internal baffle for odor control and two additional manholes are anticipated along the slope for pipe grade changes. These will be visible. A headwall approximately 3 to 5 feet tall will be visible from the river. Exposed concrete surfaces will be cast -in-place with a form liner that may give the appearance of a glacial or flagstone fagade. Earthwork grading will be completed around the outfall structure and pipe alignment. Riprap will be placed adjacent to the outfall in underwater and above water areas for erosion and scour control. This project is subject to IDEM Wet Weather Section approval. The approximate alignment may vary depending upon construct ability issues. The City and their consultants will make every attempt to minimize tree removal and restore areas as soon as possible following construction. RECOMMENDATION: Staff recommends approval of the project as presented realizing that the exact location of the new CSO will be determined on site.