WSP Canada Inc. 1300 Yonge Street, Suite 801 Toronto, ON M4T 1X3 Tel: 647-789-3550 Fax: 647-789-3560 www.wspgroup.com

July 17, 2014

Mr. Roger Howard Redhawk Construction Co. Ltd. 17 Dean Street Brampton, Ontario L6W 1M7

Subject: 1905-2251 8th Street East Development Grey Bruce Health Services Heliport Flight Path Study

Dear Mr. Howard,

At your request, WSP has undertaken a preliminary aeronautical assessment of the proposed development located at 1905-2251 8th Street East, in the City of Owen Sound. The purpose of the assessment is to determine if the proposed development will have an impact on the flight paths established for the heliport located at Grey-Bruce Health Services, and what the maximum allowable building elevation is at the site in question.

A. EXISTING CONDITIONS

The site in question is located at 1905-2251 8th Street East, which is situated south of Grey-Bruce Health Services, halfway between 9th Avenue East and 28 Avenue East. The site is currently undeveloped.

B. PROPOSED DEVELOPMENT

The development in question is, as shown on Crozier and Associates drawing 003 dated May 22, 2014, proposed to include a multi-residential development featuring 9m residential buildings and 18m tall apartment buildings. Based on the provided drawings, the buildings under the flight path have a proposed height of 9m above ground elevation. In relation to the heliport, the closest edge of the proposed development site is approximately 170m southeast of the GBHS Heliport, with the site continuing on a downward slope away from the heliport. The closest edge of the nearest building is approximately 186m southeast of the GBHS Heliport, with a building height of 9m from FFE. SP 1 illustrates the proposed site.

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C. GREY-BRUCE HEALTH SERVICES OWEN SOUND SITE

The Grey-Bruce Health Services, Owen Sound Heliport (CNK6) is a surface level heliport located in the northeast corner of 8th Street and 16th Avenue. Table 1 describes the characteristics of the heliport.

Table 1 GBHS Owen Sound Heliport Physical Characteristics

Certification Non-Instrument, Day/Night Operations

Geometric Centre N44 34 05, W80 54 48

Flight Path Heading Northern 331°m – 031°m Southern 161°m – 196°m

Heliport Elevation 794 ft (242 m) ASL

TLOF 86 ft x 86 ft

Max Helicopter Length 57.5 ft

Source: Canada Flight Supplement

The heliport has four (4) flight paths, two fanned flight paths to the north and two fanned flight paths to the south. The fanned flight paths mean aircraft can approach/depart anywhere within the flight path centrelines. The flight paths associated with the GBHS Owen Sound heliport are outlined below in Tables 2 and 3 for North and South respectively, and are illustrated on SP 1.

Table 2 Northern Fanned Flight Path Characteristics

Point of Origin N 43o 39’ 23.9”, W 79o 23’ 15.26”

Flight Path Heading 331°M – 031°M

Divergence from Centreline 15%

Length of First Section 245 m

Slope of First Section 8% (1:12.5)

Length of Second Section 830 m

Slope of Second Section 16%(1:6.25)

Source: GBHS Owen Sound Heliport Operations Manual

Page 3 of 5

Table 3 Southern Fanned Flight Path Characteristics

Point of Origin N 43o 39’ 23.9”, W 79o 23’ 15.26”

Flight Path Heading 161°M – 196°M

Divergence from Centreline 15%

Length of First Section 245 m

Slope of First Section 8% (1:12.5)

Length of Second Section 830 m

Slope of Second Section 16%(1:6.25)

Source: GBHS Owen Sound Heliport Operations Manual

As illustrated in SP1, the proposed development site is located to the southeast of the heliport and falls under the 161°M portion of the southern flight paths.

D. AERONAUTICAL IMPACT

The following analysis has been completed to identify any aeronautical impact associated with the development at 1905-2251 8th Street East.

Maximum Allowable Elevations

The elevation of the proposed development varies throughout the site, so a maximum allowable height has been indicated for the northwestern corner of the site, and the nearest 9m tall residential building. Since the site slopes downward away from the heliport, and the Apartment buildings are outside of the approach path, it has been determined that if the 9m building does not penetrate then none of the buildings will. Refer to SP 1 for a visual depiction of this analysis.

Based on the analysis, the following maximum allowable elevations have been concluded:

Page 4 of 5

Table 4 Maximum Allowable Elevations

Ground Elevation

Building Elevation

Maximum Surface

Elevation Clearance Maximum

Allowable Height

Northwestern Corner of Site

242.50m ASL

0.00m AGL 255.62m

ASL 13.12m 13.12m

Northwestern 9m Building

243.00m ASL

252.00m ASL

256.92m ASL

4.92m 13.92m

The maximum allowable height at the north western corner of the site is approximately 13m, and the closest 9m building to the flight path has a maximum allowable height of just less than 14m.

E. MARKING AND LIGHTING

As per the Canadian Aviation Regulations (CARs), the marking and lighting of obstacles in the vicinity of the heliport is intended to reduce hazards to aircraft by indicating their presence. A fixed obstacle located within the Obstacle marking/lighting area should be marked and, if the heliport is used at night, lighted. This area extends 150m from the centre of the heliport at 360°, and along the flight path, 30m on either side, for a distance of 1,000m. Based on the locations and heights of the buildings in relation to the flight paths and obstacle marking area, the following table outlines the analysis for obstruction lighting requirements.

Table 5 Obstruction Marking/Lighting Area

Building Elevation

Obstruction Marking/Lighting

Area Elevation Clearance Maximum

Allowable Height

Northwestern 9m Building

252.00m ASL

251.93m ASL -0.07m 8.93m AGL

Northwestern Edge of 18m Townhouses

257.00m ASL

256.78m ASL -0.22m 17.78m AGL Based on the foregoing, red obstruction lights will be required on the northwestern corner of most northwestern 9m tall building, as well as on the northwestern side of the 18m tall townhouses. Refer to” Inset A” on SP1 for a visual depiction of the lighting location. As this development is still in the design phase, should the top building elevation be revised to not fall within the obstruction marking/lighting area, obstruction lighting would no longer be required. Should any changes be made to the proposed development, re-analysis of the obstruction marking/lighting area should be done.

Page 5 of 5

F. CONCLUSIONS AND RECOMMENDATIONS

Based on the foregoing, it has been determined that the proposed development at 1905-2251 8th Street East, in the City of Owen Sound will not impact the GBHS Owen Sound Heliport, but will require red obstruction lighting to be placed on two (2) buildings. To mitigate the obstruction lighting requirement, the proposed designs could be modified to ensure the buildings do not penetrate the marking/lighting area. This would ensure the development, as proposed, remains clear of the obstruction lighting/marking area.

It is recommended that any changes made to the proposed development be reviewed by WSP to ensure the heliport flight path remains un-impacted by the development.

Should you have any questions please do not hesitate to call.

Sincerely,

Fiona Joyce Planning Technician, Aviation Cc: Ian Rowbotham, WSP Gary Seibel, Grey-Bruce Health Services

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1. THIS DRAWING IS NOT TO BE USED FOR CONSTRUCTION PURPOSES UNLESS

STAMPED 'ISSUED FOR CONSTRUCTION'.

2. BASE INFORMATION DERIVED FROM CAD FILES RECEIVED FROM THE CLIENT

MAY 2014.

3. FLIGHT PATH INFORMATION DERIVED FROM CAD FILES RECEIVED FROM THE

CLIENT MAY 2014.

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REVISION / ISSUE

Project No.

DRAWING No.

Client:

Project:

DATE DESCRIPTION

141-16441-00

No. BY APPD

Legend

Notes

Key Plan

Seals

Copyright Reserved

THE COPYRIGHTS TO ALL DESIGNS AND DRAWINGS ARE THE PROPERTY OF WSP CANADA INC.

REPRODUCTION OR USE FOR OTHER THAN THAT AUTHORIZED BY WSP CANADA INC. IS FORBIDDEN.

SP1

50 50250

155010

100

5025

250 FEET

75 METRES

Scale 1:1000

SHEET No.001

of

001

Contract No.

SITE PLAN

GREY-BRUCE HEALTH SERVICES

FLIGHT PATH STUDY

RICE DEVELOPMENT CORPORATION

Title:

TBD

Design:

Drawn:

Checked:

Date:

FMJ

FMJ

ILR

MAY 2014

1 JULY 4/14 AERONAUTICAL ANALYSIS FMJ ILR

FLIGHT PATH CENTRE LINE

LIMITS OF FLIGHT PATH

OBSTACLE MARKING/

LIGHTING AREA

Inset A

PLANNING

PURPOSES ONLY

18M TOWNHOUSES

RED OBSTRUCTION LIGHT

OBJECT HEIGHT

LIGHT REQUIRED

LIGHT REQUIRED

PROPOSED BUILDING HEIGHT

PROPOSED BUILDING ELEVATION

FLIGHT PATH ELEVATION

CLEARANCE

MAX ALLOWABLE HEIGHT

9.0m AGL

252.00m ASL

256.92m ASL

4.92m

13.92m

PROPOSED GROUND ELEVATION

PROPOSED SITE HEIGHT

PROPOSED BUILDING ELEVATION

FLIGHT PATH ELEVATION

CLEARANCE

MAX ALLOWABLE HEIGHT

0.0m AGL

0.00m ASL

PROPOSED GROUND ELEVATION 242.50m ASL

255.62m ASL

13.12m

13.12m

243.00m ASL