• reddig33@lemmy.world
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    1 year ago

    How much does 60km of two lane road cost for comparison? I would think building a bike path would end up being cheaper.

    • healthetank@lemmy.ca
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      1 year ago

      Way more. I’m working on a road project now. Asphalt for a road (100mm thick) is being bid at approximately $35/sq.m. Granular are about an extra $30/sq.m.

      For a standard residential size road (8.5m curb to curb) that puts you at $552/m of road length, or 33mil. The big costs on top of that number always come when you’ve got to remove the old asphalt and gravel ($75/cu.m), as well as all the fiddly little stuff like line painting, tying in grades to make sure you have drainage, sod restoration, tree plantings, etc.

    • Nouveau_Burnswick@lemmy.world
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      1 year ago

      $1-3m / km. So 60 km of 2 lane road would cost $60-180 million. Probably on the higher end for Montréal being an urban area.

      But roads can cost as over $5Bn for 1.7km (looking at you Gardener Expressway). So $2,941 million /km for however many lanes that is.

      These bike lane in particular are probably more expensive than brand new lanes, as they also require road adjustments.