Marine Works

Bristol Bridge Lift Meets the Winter Lock Programme

Published 1 November 2026 Publisher IMWO Region Europe Confidence Confirmed
Bristol programme shows bridge-span barge movements, the separate survey locations and Netham winter closure beginning 9 November.

IMWO original engineering diagram; source: Bristol Harbour Authority

Three Pero's Bridge spans are due to move by barge in the week of 2 November. Survey work and the approaching Netham winter closure put separate constraints on harbour access and marine plant movements.

Three spans move to Albion Dry Dock

Bristol Harbour Authority's notice 48/26 schedules a heavy-lift barge and tug for the week beginning 2 November 2026. Three spans of Pero's Bridge are to be removed and taken to Albion Dry Dock. Lifting and vessel movements are restricted to daylight, with temporary relocation of affected moorings and navigation restrictions during manoeuvres [1]. The September Harbour Committee recorded repair-contract decisions and a further decision needed for temporary span removal after the bridge failure [2].

Reserve the lifting area and the transit route

The marine work area extends from the crane position to the receiving dock. Before a lift, the barge and tug need a clear route for the suspended or secured load, suitable temporary moorings and an agreed receiving arrangement. Moving the nearby boats creates space at the bridge; transit restrictions protect a different part of the operation. A lift programme should allocate both so that an available crane does not face an occupied route. The daylight condition also limits the time available for securing the span and completing its tow. HSE's lifting guidance also requires the plan to address the resources, procedures and responsibilities for the lift [3].

Evidence conclusion

Netham closes after the 8 November passage deadline

Notice 49/26 schedules bathymetric work on the River Avon and Cumberland Basin on 3 November, around Netham Lock on 4 November, with 5 November held as contingency. Notice 47/26 closes Netham from 9 November through winter, with passage required by 8 November and reopening expected after repairs in spring 2027 [1]. Contractors moving plant between these areas should confirm their intended route and the applicable lock with the Harbour Authority. Netham's closure applies to its own transit; the bridge-lift restrictions move with the lifting and towage operation.

Outstanding evidence

  • Daily lifting and towage instructions
  • Mooring clearance and Albion Dry Dock receiving arrangements
  • Survey movements and the specific locks needed for plant transit

Subject index

Related subjects

These subject pages bring together related projects, technical articles, reports, and evidence methods.

Sources used 3

Source collections