Supplemental Municipal Consultation Filing The Interstate Reliability Project

Appendix C: Photo-Simulations

NOTE: See Drawing XS-1 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Hop River Trail – Towns of Coventry and Columbia

Transmission Rights-of-Way Typical Cross Section XS-1 / Photo Location PS-1

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

Also, a one new 69-kV double circuit structure for existing lines 800 and 900 will be installed at this location.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking south from the Hop River Trail, located south of U.S. Route 6 in Coventry.

Preliminary design of electric transmission line structures looking south from the Hop River Trail, located south of U.S. Route 6 in Coventry.

NOTE: See Drawing XS-1 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Hop River Trail – Towns of Coventry and Columbia

Transmission Rights-of-Way Typical Cross Section XS-1 / Photo Location PS-1

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

Also, a one new 69-kV double circuit structure for existing lines 800 and 900 will be installed at this location.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking south from the Hop River Trail, located south of U.S. Route 6 in Coventry.

Preliminary design of electric transmission line structures looking south from the Hop River Trail, located south of U.S. Route 6 in Coventry.

NOTE: See Drawing XS-2 BMP for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Flanders River Road Town Open Space – Town of Coventry

Transmission Rights-of-Way Typical Cross Section XS-2 BMP / Photo Location PS-2

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking north along Flanders River Road toward the town open space and right-of-way.

Preliminary design of electric transmission line structures looking north along Flanders River Road toward the town open space and right-of-way.

NOTE: See Drawing XS-2 BMP for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Flanders River Road Town Open Space – Town of Coventry

Transmission Rights-of-Way Typical Cross Section XS-2 BMP / Photo Location PS-2

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking north along Flanders River Road toward the town open space and right-of-way.

Preliminary design of electric transmission line structures looking north along Flanders River Road toward the town open space and right-of-way.

NOTE: See Drawing XS-2 BMP for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Highland Road Town Open Space – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-2 BMP / Photo Location PS-3

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking east from Highland Road toward the town open space.

Preliminary design of electric transmission line structures looking east from Highland Road toward the town open space.

NOTE: See Drawing XS-2 BMP for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Highland Road Town Open Space – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-2 BMP / Photo Location PS-3

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking east from Highland Road toward the town open space. Preliminary design of electric transmission line structures looking east from Highland Road toward the town open space.

NOTE: See Drawing XS-2 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Nipmuck Trail (West Branch) – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-2 / Photo Location PS-4

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking east from the Nipmuck Trail - West Branch, located east of Mansfield City Road and west of Storrs Road.

Preliminary design of electric transmission line structures looking east from the Nipmuck Trail - West Branch, located east of Mansfield City Road and west of Storrs Road.

NOTE: See Drawing XS-2 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Nipmuck Trail (West Branch) – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-2 / Photo Location PS-4

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking east from the Nipmuck Trail - West Branch, located east of Mansfield City Road and west of Storrs Road.

Preliminary design of electric transmission line structures looking east from the Nipmuck Trail - West Branch, located east of Mansfield City Road and west of Storrs Road.

NOTE: See Drawing XS-2 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Mansfield Hollow Dam – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-2 / Photo Location PS-5

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking west from the Mansfield Hollow Dam, toward the transmission line right-of-way west of Storrs Road.

Preliminary design of electric transmission line structures looking west from the Mansfield Hollow Dam, toward the transmission line right-of-way west of Storrs Road.

NOTE: See Drawing XS-2 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Mansfield Hollow Dam – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-2 / Photo Location PS-5

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking west from the Mansfield Hollow Dam, toward the transmission line right-of-way west of Storrs Road.

Preliminary design of electric transmission line structures looking west from the Mansfield Hollow Dam, toward the transmission line right-of-way west of Storrs Road.

NOTE: See Drawing XS-3 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Mansfield Hollow Park Levee Trail – Towns of Mansfield and Windham

Transmission Rights-of-Way Typical Cross Section XS-3 / Photo Location PS-6

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking north from the Mansfield Hollow Park Levee Trail on the Mansfield Hollow Lake levee, located north of Boston Post Road/U.S. 6 west.

Preliminary design of electric transmission line structures looking north from the Mansfield Hollow Park Levee Trail on the Mansfield Hollow Lake levee, located north of Boston Post Road/U.S. 6 west.

NOTE: See Drawing XS-3 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Mansfield Hollow Park Levee Trail – Towns of Mansfield and Windham

Transmission Rights-of-Way Typical Cross Section XS-3 / Photo Location PS-6

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking north from the Mansfield Hollow Park Levee Trail on the Mansfield Hollow Lake levee, located north of Boston Post Road/U.S. 6 west.

Preliminary design of electric transmission line structures looking north from the Mansfield Hollow Park Levee Trail on the Mansfield Hollow Lake levee, located north of Boston Post Road/U.S. 6 west.

NOTE: See Drawing XS-3 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Nipmuck Trail (East Branch) – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-3 / Photo Location PS-7

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking southwest from the Nipmuck Trail - East Branch, located west of Bassetts Bridge Road.

Preliminary design of electric transmission line structures looking southwest from the Nipmuck Trail - East Branch, located west of Bassetts Bridge Road.

NOTE: See Drawing XS-3 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Nipmuck Trail (East Branch) – Town of Mansfield

Transmission Rights-of-Way Typical Cross Section XS-3 / Photo Location PS-7

The existing 345-kV line will remain and a new delta-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking southwest from the Nipmuck Trail - East Branch, located west of Bassetts Bridge Road.

Preliminary design of electric transmission line structures looking southwest from the Nipmuck Trail - East Branch, located west of Bassetts Bridge Road.

NOTE: See Drawing XS-6 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project State Route 169 (Scenic Road) – Town of Brooklyn

Transmission Rights-of-Way Typical Cross Section XS-6 / Photo Location PS-8

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking east from State Route 169 (Scenic Road).

Preliminary design of electric transmission line structures looking east from State Route 169 (Scenic Road).

NOTE: See Drawing XS-6 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project State Route 169 (Scenic Road) – Town of Brooklyn

Transmission Rights-of-Way Typical Cross Section XS-6 / Photo Location PS-8

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking east from State Route 169 (Scenic Road).

Preliminary design of electric transmission line structures looking east from State Route 169 (Scenic Road).

NOTE: See Drawing XS-7 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Quinebaug River – Towns of Pomfret and Killingly

Transmission Rights-of-Way Typical Cross Section XS-7 / Photo Location PS-9

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-off Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-off Condition)

Existing electric transmission line structures looking north from Killingly Road toward the Quinebaug River. Quinebaug River access parking lot and boat ramp is located in the vicinity.

Preliminary design of electric transmission line structures looking north from Killingly Road toward the Quinebaug River. Quinebaug River access parking lot and boat ramp is located in the vicinity.

NOTE: See Drawing XS-7 for a representation of the typical transmission structures, typical heights of the structures, and ROW width for this cross section.

Interstate Reliability Project Quinebaug River – Towns of Pomfret and Killingly

Transmission Rights-of-Way Typical Cross Section XS-7 / Photo Location PS-9

The existing 345-kV line will remain and a new horizontally-configured 345-kV line will be installed.

(Existing Transmission Right-of-Way – Leaf-on Condition) (Simulation of the Existing Transmission Right-of-Way – Leaf-on Condition)

Existing electric transmission line structures looking north from Killingly Road toward the Quinebaug River. Quinebaug River access parking lot and boat ramp is located in the vicinity.

Preliminary design of electric transmission line structures looking north from Killingly Road toward the Quinebaug River. Quinebaug River access parking lot and boat ramp is located in the vicinity.