Minnetrista Water Improvements Project Christopher Larson, PE Minnetrista City Council Meeting July 20, 2015
North Water Treatment Plant – Site Plan
Well 1
Water Treatment Plant
North Water Treatment Plant – Steel Gravity Layout
North Water Treatment Plant Steel Gravity - Section
North Water Treatment Plant – Steel Gravity – Rendering
North Water Treatment Plant Steel Gravity – Rendering (Flat Roof)
North Water Treatment Plant – Concrete Gravity Layout
North Water Treatment Plant Concrete Gravity - Section
Concrete Gravity - Rendering
Concrete Gravity – Rendering (Flat Roof)
Kings Point Road
South Water Treatment Plant – Site Plan
Water Tower
Water Treatment Plant
Wetland
South Water Treatment Plant Steel Gravity Layout
South Water Treatment Plant Concrete Gravity Layout
Estimated Construction Costs Steel Gravity
Concrete Gravity
North WTP
$4.9 million
$5.9 million
South WTP
$5.5 million
$6.5 million
• Includes 10% contingency, areas where costs could come down
Estimated 50 Year Life Cycle Costs Steel Gravity
Concrete Gravity
North WTP
$11.2 million
$11.6 million
South WTP
$12.6 million
$12.8 million
• Includes capital costs, equipment replacement, labor, chemical, electricity, etc.
WTP Schedule • Issue WTP plans for bidding - September 2015 • Bid opening - October 2015 • Construction begins - November 2015 • Construction complete - December 2016
Filter Recommendation • Staff recommends steel gravity filter option – Less expensive – Slightly smaller building footprint – Similar operating considerations
South/Central Water Main Connection
Water Main Schedule • Issue water main plans for bidding October 2015 • Bid opening - November 2015 • Construction begins - February 2016 • Construction complete - October 2016
Hunters Crest Area Water Tower • Currently identifying potential water tower sites. • Anticipate bidding Spring 2016, construction complete Summer 2017 • Schedule contingent on site acquisition
Water Improvements Project Cost Water Treatment Plants