Surveying begins for the Cowichan Subdivision of the Canadian Northern Pacific Railroad on Vancouver Island.
February 18 - Sod-turning event for the island's CNPR line.
Work is slow, due to WWI and the debt-laden CNPR.
Nine bents (116 ft) of the trestle are constructed on the south side of the Koksilah Canyon.
Rapid progress ensues due to a demand for Sitka spruce to build fighter planes for WWI.
Only eight miles of track are laid from Victoria.
The federal government takes over the debt-laden CNPR and the railway is incorporated into the Canadian National Railroad (CN).
BC's Lieutenant-Governor presides over a rededication ceremony at Luxton (Mile 9.8), and work on the Cowichan Subdivision resumes.
Steel rails stretch from Victoria to Mile 51.1 at the Koksilah River. Work is underway to complete the Koksilah River Crossing (the Kinsol Trestle).
By April, the trestle is finished. The rails are laid.
CN launches a twice-daily passenger service from Victoria to Milne's Landing (Sooke).
Rails extend to Lake Cowichan. Twice-weekly passenger service from Milne's Landing to Lake Cowichan begins.
Rails reach the west shore of Cowichan Lake at Kissenger (now Nitinat). CN adds a daily passenger service from Victoria to Youbou.
The Tidewater Subdivision from Deerholme to Cowichan Bay is completed.
Passenger service is abandoned.
Winter flooding causes extensive damage to the trestle.
The trestle undergoes a major redesign and rebuild. A Howe truss is repositioned at a lower level.
The National Model Railroad Convention arranges a special excursion train to take passengers across the trestle for a photo opportunity.
CN abandons the Cowichan Subdivision west of Youbou.
The northern section of the trestle is rebuilt.
CN reduces the bridge crews on the island from four to one.
CN completes its last major repairs to the trestle.
Regular service is discontinued on the Cowichan Subdivision south of Deerholme.
One of the last loads across the trestle is a huge tree that is used to build the giant hockey stick for Expo '86. This stick is now in Duncan.
CN applies for and receives permission to abandon the line between Mile 1.9 and 57.9. This section includes the trestle.
June 20 - The last train crosses the trestle.
June 30 - CN officially abandons the section of the Cowichan Subdivision between Mile 1.9 and 57.9.
The BC government approves, in principle, the acquisition of the abandoned CN right-of-way.
CN removes the rails between Mile 1.9 and 57.9.
The BC government acquires the abandoned CN right-of-way.
The BC Ministry of Transportation and Highways conducts a feasibility study to repair/rehabilitate the trestle.
June 26 - A fire, deliberately set, destroys an eight-metre section of the deck of the trestle. Shawnigan Lake Fire Department, with the help of neighbouring fire crews, put out the fire. An eight-metre section on the top of the trestle is damaged.
The last train on the Tidewater Subdivision travels from Youbou to Cowichan Bay.
Duncan & Associates Engineering Ltd. conducts a study for the Cowichan and Chemainus Valleys Eco-museum Society that indicates that the trestle can be refurbished for use.
The Historic sites and Monuments Board of Canada denies the request from the Cowichan and Chemainus Valleys Eco-museum Society to have it listed for its national historic significance.
July 26 - Arsonists set three fires on the trestle. Shawnigan Lake Fire Department, with the help of the Martin Mars water bomber, extinguishes the fires.
The Cowichan Valley Regional District commissions a feasibility study for the restoration of the trestle.
The BC government announces that they will tear down the trestle because of liability issues. $1.5 million is budgeted for the demolition.
The CVRD orders another feasibility study to determine the fate of the trestle.
The CVRD proceeds with Phase 2 of the feasibility study.
June 28 - Rehabilitation begins on the historic trestle.
July 28 - Kinsol Trestle Grand Re-opening