Middletown-Norwalk ProjectRoute Analysis and Selection – Segments 1 & 2 Prepared for the Connecticut Siting Council
June 1, 2004
Overview
1. Summarize process used to select a route2. Review transportation corridors
HighwayParkway (including the Crossing of West Rock Tunnel)Railway
3. Review Segment One right of way routes4. Review Segment Two right of way routes
Determining a Route
What is the best combination of solution components?
PROPERTY IMPACTImpact on homes &
property; Visual impact
ENVIRONMENTAL IMPACTImpact on wildlife, vernal pools,
aquifers
SYSTEM BENEFITOperability†, Reliability†
TECHNICAL FEASIBILITYCan it be engineered? Can
it be built?
COST to CUSTOMERSEngineering and
Construction Costs
† Per national and regional reliability standards.
What are the components of the solution?
Overhead Point-to-Point
Options
Underground Point-to-Point
Options
Evaluate each option based on
these criteria
Evaluate each combination based
on these criteria
What needs to be done?*
* Per regional planning led by ISO-New England.
1.Strengthen power source to a point in Wallingford
2. Connect that source to substations in Milford, Bridgeport, and Norwalk
11
2
22
MiddletownMiddletown
NorwalkNorwalk
22
22
22S/SS/S
S/SS/S
S/SS/S
11
11S/SS/S
To meet national and regionalreliability standards…
Step 1: What needs to be done?
What is the best combination of solution components?
What are the components of the solution?
Overhead Point-to-Point
Options
Underground Point-to-Point
Options
1
Step 3: What are the best options?
PROPERTY IMPACTImpact on homes &
property; Visual impact
ENVIRONMENTAL IMPACTImpact on wildlife, vernal pools,
aquifers
SYSTEM BENEFITOperability†, Reliability†
TECHNICAL FEASIBILITYCan it be engineered?
Can it be built?
COST to CUSTOMERSEngineering and
construction costs
† Per national and regional reliability standards.
Evaluate each option based on
these criteria
Evaluate each combination based
on these criteria
Choosing a Route was an Iterative Process
m nDecision
Circle
Environmental ReviewPhenix Environmental, Inc.
HistoricalRaber Associates
EnvironmentalTopology
Water ResourcesCoastal Area
CulturalSSES
Marine OptionsESS
EMF/ Best PracticeExponent
CB EllisProperty Impact
Underground Technology Underground Construction
PDCJD Hair
Transmission &Substation DesignBurns & McDonnell
Routing & CriteriaBurns & McDonnell
HVDCBlack & Veatch
Singer Substation SiteBlack & Veatch
NoiseCavanough & Tocci
General ElectricISO-NE
NU
System Studies
I-91, I-95Wilbur Cross
Amtrak RailroadConrail Railroad
East Devon
ScovillRock
?
Beseck
Transmission ROWSecondary Roads
North of Exit 10, North Haven
Combination: waterways, flood plain, cemetery, buildings adjacent to highway
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