Project Overview

Project Start Date: Mid to Late August 2020

Location: Alley between 38th & 39th Avenue East, and Itasca & St. Croix Street:

Sanitary sewer segment MH070117-MH070118 is a 10-inch Vitrified Clay Pipe (VCP) installed in 1914. During a routine inspection by ESD environmental engineering staff in 2018, sanitary segment MH070117-MH070118 was discovered to have multiple defects throughout. Such defects include: broken/cracked pipe, large offset joints, and reverse slope. Additionally, a sinkhole has formed over a section of broken pipe within the alley. This pipe segment is at risk of collapse due to the inflow of stormwater during intense rain events, which increases the likelihood of a sewer backup or sanitary sewer overflow. 

The project shall consist of removing 458 lineal feet of 10-inch Vitrified Clay Pipe (VCP) sanitary sewer, removal of two (2) brick sanitary structures, installing two (2) concrete sanitary structures, installing 458 lineal feet of 10-inch Polyvinyl Chloride Pipe (PVC), connecting existing sewer services, and re-establishment of gravel alley. Sewer Service will not be interrupted during construction, however, it is STRONGLY encouraged that water usage be limited during construction for residences connected to the sewer main. The contractor will be in communication with the homeowners in advance to when they’re service lateral will be disconnected and reconnected to the new sewer main.

Project Timeline

First Week: Removal of existing sanitary sewer and installation of new sanitary sewer.

Second Week: Removal of existing sanitary sewer and installation of new sanitary sewer.

Third Week: Resurfacing of the alley and 39^th Avenue East.

Contract to be completed in 35 working days.

Road Closures

Alley between 38^th & 39^th Avenue East and Itasca & St. Croix Street: The alley is expected to be closed for three (3) weeks. 

Please plan for on-street parking during alley closure.

39^th Avenue East between Itasca & St. Croix Streets: Expected to be closed for one (1) week.

Contacts 

Brett Gunderson

City of Superior

Civil Engineering Technician (City Representative)

(715) 394-0392 Ext. 1004

gundersonb@ci.superior.wi.us

Blake Johnson

Northern Interstate Construction

Project Manager

(715) 398-7561

blake@northerninterstate.com