Bay Area Supply Connection and Pinconning Pump Station Improvements – SMMWSC

Bay City, Michigan

The SMMWSC retained LAN for design and construction engineering services involving a new supply to a large scale wholesale raw water customer. The project included water system hydraulic modeling; transient modeling for existing and proposed systems of both the Owner and the Customer; design of piping modifications at the Pinconning Pump Station; design of redundant connections, metering and flow control for supply to the new customer; and construction engineering services.

The new service connections and metering station were designated as Part 1 and improvements at the Pinconning Pump Station were defined as Part 2. Part 1 included 60- by 30-inch ductile iron tees, 30-inch ductile iron transmission mains, a cast in place below grade metering vault, flow meters, pressure relief valves, air release and air vacuum valves and cone flow control valves. Part 2 included a ‘hot tap’ connection to the existing 60-inch prestressed concrete cylinder pipe, installation of a ball control valve and vault, check valve with vault, and new 36-inch through 72-inch welded stainless steel pipe.

At a glance

1100-feet of 30-inch ductile iron pipe

Two 18-inch flow control cone valves

A 36-inch “hot tap” into a 60-inch PCC pipeline

Three below grade concrete valve structures

36-inch flow control valve and 36-inch tilting disk check valve

300 feet of 36-, 60-, and 72-inch below grade Type 304L stainless steel pipeline

Two 12-inch surge release valves

Features

Project design was coordinated between three engineering consultants

LAN provided hydraulic analysis for transient control

Design included redundant supply features

Services

Water Supply & Transmission

 

Client

Saginaw Midland Municipal Water Supply Corporation

Related Work

Construction Management

Engineers from LAN at work planning and managing projects

Program Management

trenchless method identification, tunnel shaft design

Water Supply & Transmission