Cost of a Fixed Link

Williams says:

Your math is way off. Government figures indicate construction costs at about 2 billion. Currently about 1,070,000 vehicles per year on the ferry. With a $20 toll, the total annual revenue would be $21,400,000. Ignoring interest the payback period would be 93 years, not 12.5 years.

Oddvin says:

You are right. But my proposal is a simple crossing at Porteau Cove, using the only shallow in Howe Sound, at a fraction of the cost. Most of the crossing will be a causeway or a viaduct, with a short bridge, tunnell, or my choice; a concrete pipe, to enable ship traffic in the narrow shipping lane.
The cost estimate above was also just for the actual crossing. Not including 16,2 km. road with 3 short tunnells, (instead of building roads hanging outside of the cliffs, like some of the Sea to Sky), and two bridges, at Potlach and McNab Creek, to Port Mellon at $ 420 M.
A Fixed Link would double the traffic, or more, and then the figures would match.

Note also the Comox additional increased ferry traffic, used by mid and north Vancouver Island, as they would save two ferries. Many of them would turn left and drive through Squamish, Pemberton and Kamloops to get back east.
And I agree, I like bridges, but two Golden Gate bridges over Anvil is not viable, too costly and not a pretty sight.

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4 Responses to Cost of a Fixed Link

  1. George says:

    I agree the two Bridge – Anvil Is. crossing is too expensive and an eye sore. A crossing near Furry Creek and the Channel Is. could be a single bridge and connecting roads . Why build two bridges when only one bridge is necessary. This is a shallow underwater reef area crossing that would permit footings for the bridge if required. An interchange on the western side to Woodfibre and Port Mellon would be necessary. (check a local Marine chart)
    Your proposed costs for tolls gentleman are in 1980 dollars. A more likely cost return would be similiar to existing Ferry Tolls. say $50-60.00 per vehicle . The saving would be for commercial trucks and trailers that would not have a $7.00/ per lineal /ft. charge. Hopefully, the saving could be passed on to consumers and business. In addition, 24/7 travel for everyone is a time saver.

    For those that feel a fixed crossing would destroy the serenity on the coast, perhaps a toll as suggested would be a hindrance to some un-desirables.

  2. yvrlutyens says:

    I am repeating myself because I don’t think people here are appreciating what “shallow” and “deep” mean in the context of BC’s fjordal coastline. The water is 50 to 75m deep along much of the bridge alignment which is far too deep for anything like a causeway. (If anyone can show me a chart that makes this as 50 feet and not 50 metres, I stand corrected.) Actually 50m deep is already on the deep end for bridge piers, and 75m is approaching record breaking territory. This would require huge caissons on huge piles. The bridge across the Gulf of Corinth, a 2500m cable-stayed bridge with four pylons in water up to 65m deep, is the model that we would need to look at except our bridge would be twice as long, be in even deeper water, and would be partially curved.

    A submerged tube tunnel under the shipping channel would have to be 75m deep at the deepest which would make it the world’s deepest submerged tube after the Marmaray tunnel which is 60m below sea level at the deepest. That deep section would also require 1500m approaches on either side to keep the grade down to 5%, so a tunnel like this would essentially go the whole way across. While this would be record breaking and complicated over the uneven sea floor, a tunnel almost seems easier than a bridge.

    I have run the numbers on an amortization spreadsheet, and with these assumptions:

    1,121,479 – car trips per year Horseshoe to Langdale
    $27.08 – average fare each way for a car and driver including discounts
    $30,364,044 – annual revenue, low estimate as assuming all trips are car trips not trucks
    $3,036,404 – 10% toll collection charge, could come down if incorporated into region wide tolling
    $1,500,000 – Maintenance, this is surely too low especially as time passes
    $25,827,640 – Net Revenue
    3.0% – Effective Annual Interest Rate
    35 – Amortization Years
    0.18% – Monthly Payment Inflator, this is a bit more than 2% per year

    A project cost of $787,048,928 would be paid off in 35 years. The monthly payment inflator accounts for inflation and population growth, and if both of those increased, then the principal supported could be more. And it might be possible that revenue could be increased with a combination of lower tolls and much higher usage, but I’m not actually sure about that. Some of these proposals do not have much in the way of time savings, and that would be a big dampener on usage.

    • lucy Gonzalez says:

      Just Build the BRIDGE and stop crying about how much it going to cost because every year we pay more cost of living and WE PAY TO MUCH ON TAXES. It’s not fare so do something about the bridge and it will help millions of people out there!!!

  3. Edward Shon says:

    Golden Gate Bridge is still a toll bridge for almost 80 years. Why not for the BC coast? Only 2.5 billion investment will give us a totally different future. Open eyes to other countries.

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