In Blackburn locks
As we saw earlier at Wigan, here the road bridge is so close to the lock that the gates have to be operated by a toothed quadrant instead of conventional balance beams. Here they're being worked by the crew of another boat..
In Blackburn locksAs we saw earlier at Wigan, here the road bridge is so close to the lock that the gates have to be operated by a toothed quadrant instead of conventional balance beams. Here they're being worked by the crew of another boat.. |
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