IN AWWA Conference, February 12, 2014 | Distribution Session
Bradford Woods – Goes Over the Hills for a New
Water Supply
Indiana AWWA Conference
February 12, 2014
Distribution Session
Jennifer Bailey, PE, and Jeff Kaden, PE, LEED AP
IN AWWA Conference, February 12, 2014 | Distribution Session
Project Team
• Owner – Indiana University and Bradford Woods
• Engineer – American Structurepoint, Inc.
• Water Supplier – Morgan County Rural Water
Company
• Contractor – Dave O’Mara Contractors, Inc.
IN AWWA Conference, February 12, 2014 | Distribution Session
Overview
•
•
•
•
Background
Study
Design
Construction
IN AWWA Conference, February 12, 2014 | Distribution Session
Project Location
American Camp
Association
Well
House
Bradford Woods
Carriage
House
Sycamore
Creek
IN AWWA Conference, February 12, 2014 | Distribution Session
Background
• IDEM June 2010
inspection – Failing tank,
separate chemicals,
provide secondary
containment and eye
wash
• IDHS September 2011 –
Violation for failing tank.
Potential fine – $500/day
IN AWWA Conference, February 12, 2014 | Distribution Session
Background
• Existing system – Two wells, 6,000-gallon
hydropneumatic tank, compressor with sodium
hypochlorite, and phosphate feed systems
IN AWWA Conference, February 12, 2014 | Distribution Session
Project Drivers
• Address IDEM and IDHS issues
• Provide 2 to 4 hours of storage to cover power
outages
• Install flow meter
• Minimize disruptions during construction
• Meet budget of $263,000
IN AWWA Conference, February 12, 2014 | Distribution Session
Project Location
Well
House
Bradford Woods
Carriage
House
Sycamore
Creek
IN AWWA Conference, February 12, 2014 | Distribution Session
Alternatives
• Carriage House Basement
– Unable to permanently
modify openings since
historic
– Moisture-rich environment
– Electrical and
communication
improvements required
IN AWWA Conference, February 12, 2014 | Distribution Session
Alternatives
• Well House
– Located in White River
floodway
– Reduced floor space if
chemical room added
– Multiple pressure tanks
required—IDEM
not in favor
– Open-top tanks would
require additional pumps
IN AWWA Conference, February 12, 2014 | Distribution Session
Alternatives
• Morgan County Rural Water Connection
– 3-inch main, ~3,285 feet long was investigated in
2008
– Elevation change from 760 feet to 600 feet
• Design needed to address pressure
– Camp water use could not impact MCRW
customers
– Creek crossing
– Flow tests verified available capacity
IN AWWA Conference, February 12, 2014 | Distribution Session
Bradford Woods
IN AWWA Conference, February 12, 2014 | Distribution Session
Elevation Change
Tulip
Court
Sycamore
Creek
Proposed
Connection
IN AWWA Conference, February 12, 2014 | Distribution Session
Alternatives
• Selection – MCRW Connection
– Costs
• Pressure Tanks
• Non Pressure Tanks
• MCRW Connection
$423,845
$285,425
$250,450
– Camp no longer responsible for water production
• Operations, maintenance, and licenses
– Maintain service and minimized disruptions
during construction
IN AWWA Conference, February 12, 2014 | Distribution Session
Design Challenges
• Alignment—finding
constructible path
• Rock
– Results were
inconclusive from 3
borings
– 4 hand auger borings
were taken along
crest
IN AWWA Conference, February 12, 2014 | Distribution Session
Bradford Woods
Sycamore Creek
Initial Alignment
Tulip Court
IN AWWA Conference, February 12, 2014 | Distribution Session
Bradford Woods
Sycamore Creek
Alternate Alignment
Tulip Court
IN AWWA Conference, February 12, 2014 | Distribution Session
Bradford Woods
Sycamore Creek
Design Alignment
Tulip Court
IN AWWA Conference, February 12, 2014 | Distribution Session
Other Design Challenges
• Dry hydrant
– Potential
endangered
species
• Existing
distribution
system
information
Well
House
Isolation
Valve
Dry Hydrant
Bradford
Woods
Sycamore
Creek
IN AWWA Conference, February 12, 2014 | Distribution Session
Design Approach
• Horizontal directional drilling
• Base bid + 2 alternates
– Dry hydrant
– Well House demolition
• Engineer’s OPCC = $265,230
• Bids
– 7 received, range: $178,700 to $472,157
– Low bidder: Dave O’Mara Contractors, Inc.
IN AWWA Conference, February 12, 2014 | Distribution Session
Construction
• HDD worked for the first 660 feet
• Rock problematic from station 17+00 to
23+50
– Decided to use open-cut construction
– IU, American Structurepoint, and O’Mara found
new alignment
• Balanced constructability with minimizing tree
damage
IN AWWA Conference, February 12, 2014 | Distribution Session
PRV & Meter
Bradford Woods
Sycamore Creek
Open Trench
HDD Installed
(typical)
Final Alignment
MCRW Meter
Tulip Court
IN AWWA Conference, February 12, 2014 | Distribution Session
Construction
• No valve between Well House and camp
– Required insert-a-valve
Well
House
New Valve
SR 67
IN AWWA Conference, February 12, 2014 | Distribution Session
Construction
• Dry hydrant
– Design vs. HDD with underwater divers
IN AWWA Conference, February 12, 2014 | Distribution Session
Conclusions
• Project had its ups and downs
– Started in fall 2011
– Water main in service July 2013
• Flexibility contributed to success
– IDEM and IDHS
– MCRW
– O’Mara
• Construction came in under OPCC at $195,231.19
IN AWWA Conference, February 12, 2014 | Distribution Session
Conclusions
• Resolved IDEM and IDHS issues
• Bradford Woods can focus on its true mission
– Camping experience for disabled children
• INCLUDING NEW ZIP LINE!
– Outdoor recreational resource
– Training
IN AWWA Conference, February 12, 2014 | Distribution Session
Questions?
Jennifer Bailey, PE
American Structurepoint, Inc.
jbailey@structurepoint.com
Jeff Kaden, PE, LEED AP
Indiana University
jkaden@indiana.edu