sentences:  The twelve locks are spread over a distance of just , and raise the level of the canal by to the contour, which it then follows to Marple Junction.The locks are numbered 1 to 12 from the top downwards.A minor road crosses at Daintrys Road Bridge, just below lock 1, the A54 road crosses at Peckerpool Bridge, below lock 5, Swindalls Bridge carries a footpath over the canal below lock 8, and a dismantled railway used to cross above lock 12.