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Obtained by Bob Mackin via Freedom of Information

2010goldrush@gmail.com

twitter.com/bobmackin

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TechnicalMemorandumCity of Vancouver

Burrard Bridge RehabilitationVessel Impact Protection -Revision 1

March 2012

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TECHNICAL MEMORANDUM

Table of Contents

SECTION PAGE NO

Table of Contents i

City of Vancouver 1

1 Introduction 1

4 Conclusion 5

5 Recommendations 5

Appendix A Aerial View of the Bridge

s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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TECHNICAL MEMORANDUM

City of VancouverBurrard Bridge Rehabilitation

Vessel Impact Protection

Issued: March 27, 2012

Previous Issue: February 27, 2012

The City of Vancouver retained Associated Engineering to evaluate the historic Burrard Bridge and make

recommendations for rehabilitation and safety improvements. As a part of our evaluation, we have

assessed the effectiveness of and the requirements for the protection of piers in the water that are

vulnerable to ship impact.

1 Introduction

The Burrard Bridge is located in False Creek. Shipping in False Creek consists of barges supplying

material to the ready-mix concrete plant on Granville Island; light day-cruiser vessels; as well as

small fishing boats, sailboats, yachts, rowing-boats, kayaks and canoes. The speed limit of 5 knots

(9 km/h) applies to all navigation in False Creek. As ocean-going freighters do not navigate False

Creek we have not considered the possibility of a large ocean going freighter colliding with the s ; s ; s c ; s a ; an s

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s. ; s. ; s. c , , ; s. a ; an s.

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Technical MemorandumBurrard Bridge Rehabilitation

Vessel Impact Protection - Revision 1

4 Conclusion

In conclusion, based on the results of our evaluation described above, we confirm that the mainpiers of the Burrard Bridge, P3 and P4, can safely withstand our estimated vessel impact force.

Pier P2, south of the navigation channel, is highly unlikely to be exposed to barge impact; however

based on our analysis, this pier can readily withstand the resulting impact force as well. Therefore,

the piers do not need to be protected from vessel impact by an external fender system.

s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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TECHNICAL MEMORANDUM

Appendix A

Aerial View of the Bridge

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s. ; s. ; s. c , , ; s. a ; an s.

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; ; , , ; ;

s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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s. ; s. ; s. c , , ; s. a ; an s.

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s.13(1); s.15(1)(l); s.17(1)(c), (d), & (f); s.18(a); and s.19(1)(b)

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