3 ms·

anyone know if it cheaper to make a bridge or tunnel across the thames?

• randunel 4y ago
  It shouldn't matter. Move all cars underground, bridges are ugly (when up close / under), noisy and crime ridden.
• ZeroGravitas 4y ago
  For the actual bridge vs the actual tunnel, tunnels start to outcompete once you get a length over a mile or so, so I'd guess bridge. But since this is in the middle of a busy city, I'd guess other factors dominate, costs for land access and approach roads, river traffic, appearances etc.
  • orwin 4y ago
    The elevation needed for boats to cross under can make the bridge initial cost really high, depending on the height you need to accommodate. Honestly, i would just trust the architects and urban planners. At least in my country, every new development i saw recently, even those i was kind of against at first (in 4 different cities) were upgrades once finished. Even when it lost something i really was attached to, i have to admit that this is overall better now.
• tremarley 4y ago
  The river at Silvertown is atleast 500m wide. Tall and short ships and boats travel up and down it. A bridge would cost a lot to upkeep.