PROJ01996

• Contract/PO #: FS0068FX
• Contractor Name: Minturn, Town of
• Contract Type: Loan
• Water District: 0
• Loan Projects - Doc Type: Feasibility Study

I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I

transmission main to a 100,000 gallon tank which serves the Maloit Park Middle School. The
pumps are located within the disinfection building on top of the clearwell. The town's
distribution system includes a 12 inch primary main along Highway 24, with an 8 inch loop
through the town core area, and several 6 or 8 inch unlooped mains branching off of the
downtown loop, A pressure reducing valve (PRV) is located just upstream of the downtown
loop, and places the town core area and north Minturn into a lower pressure zone, Water
storage is provided by a 400,000 gallon uninsulated, steel tank located on the west side valley
slope above the town core. The tank is connected to the lower pressure zone loop by a 10 inch
wood stave supply main,

B. History

The modem, pressurized distribution system for Minturn was initially developed during the
1930's and 1940's with the installation of a wood stave pipe distribution system and transmission
main from a point of diversion on Cross Creek. Prior to that time, water was provided to the
town through the use of open ditches, initially from several intakes along the Eagle River, and
later from the Cross Creek diversion point. The town first began treating their municipal supply
in 1963, when two slow sand filters and a chlorine gas disinfection system were constructed
along Cross Creek above the existing point of diversion. A new raw water intake was built
above the treatment plant so that the system could continue to function by gravity flow only.

Beginning in the 1970's, the town began to replace the wood stave pipe with ductile-iron pipe.
Initial main replacement occurred from the 500 block of Main Street to the 500 block of Taylor
Avenue. An 8 inch transmission main, from the treatment plant clearwell to a new 100,000
gallon storage tank at the middle school, was added in 1976, along with two small pumps at the
clearwell to boost water into the tank. In 1987 and 1988 replacement of 12 inch wood stave pipe
with 12 inch ductile iron pipe continued from the 500 block of Main to the 1800 block. In 1991,
the 6 inch wood stave loop along Toledo Avenue, Pine Street, Mann Avenue and Boulder Street
was replaced with 8 inch ductile iron pipe. Also, in 1991, a third slow sand filter was added to
the treatment works. The third filter is housed in a building to protect it from subfreezing
winter temperatures.

Today, wood stave pipe remains in the 1200 foot section along Highway 24 and the 6 inch wood
pipe along Eagle Street. Both segments are to be replaced as part of this project. The supply line
connecting the existing storage tank to the system is also wood stave construction. This pipe
will be abandoned after the new tank is brought into service.

The existing water tank was constructed in the mid 1940's and has served as a water storage
facility since that time,

Town of Minturn Water System Upgrade Project, March, 1995

10