KGAL Fluid Autumn / Winter 2024 - Flipbook - Page 2
consulting engineers
Original Intake Tower under construction
Intake Tower today
Coûerdam design for refurbishment
works at hydro dam
KGAL has been appointed to design a coûerdam and provide fabrication drawings for AJT Engineering
to manufacture and install.
The dam is in a remote location with very limited vehicular access. All fabricated parts must be delivered to site by helicopter with strict weight limits for each sub
assembly. As it9s not possible to dewater the site, surveys have been undertaken by divers to determine the 8as built9 dimensions. Installation will also be carried out
12m below the surface by divers, appointed and supervised by AJT Engineering.
The coûerdam is required to sit over the existing coarse intake screen to isolate the pressure tunnel whilst the works are completed on the service gates.
New equipment for Bedford Lock
KGAL has been commissioned by Jackson Civils on behalf of the Environment Agency to design
stoplogs and a replacement mitre gate with new built in parts at Bedford Lock, Bedford.
The lock is used to allow passage of navigation on the
River Great Ouse, bypassing the water level control
weirs located to the east and west of the lock within
Bedford Park. It is composed of a steel framed guillotine
gate on the upstream end, and a timber mitre gate with
timber balance beams at the downstream end.
A site survey of the existing stoplog guides was carried
out in May to enable the design and fabrication of the
stoplogs. The mitre gate channel was successfully
dewatered to allow a detailed dimensional survey of the
gate and related civils to be carried out in July.
Following the mitre gate inspection, KGAL is currently
designing a manually operated steel mitre gate, with new
stainless steel quoins, pintles, sill and top anchor
arrangements. Construction and installation is expected
in 2025.
Bedford Lock
