It simply does not seem possible to meet the requirements of the reservoirs' legislation by adapting the existing spillway channel
without completely destroying what MAKEs it special.
All vegetation and debris in the bywash channel (the channel that carries water around the reservoir to prevent it filling), the spillway channel
and the channel downstream of the outlet tunnel should be removed and flows directed into the bywash channel rather than the reservoir.
Tenders are invited for Construction of PCC drain along the toe of hill side slope d/h of spillway channel
and across proposed land to tail race channel to drain off surface water to Lidder Nallah at MHP Pahalgam.
If floodwater was to pour over the top of the dam, or overwhelm the spillway channel
, it would wash away the dam's earth embanKment and put the whole structure at risK of collapse, releasing the contents of the reservoir into Marsden and further down the Colne Valley.
Tenders are invited for Cutting and opening sand bar at the mouth of thottappally spillway channel
for the year 2016
An inspection in 2008 suggested Yorkshire Water take action to improve safety to the existing overflow spillway channel
of Butterley Reservoir, Wessenden Road, Marsden.
Tenders are invited for The work includes spillway channel
upgrades, single spillway construction, existing service spillway (riser & conduit) abandonment, upstream embankment erosion protection, filling animal burrows, and other incidental construction necessary for completion of the project.
And improvements will see reinforcements made to the crest of the dam wall, as well as the spillway channel
The dam is also in poor condition, with tree growth, spillway capacity issues and major deterioration of the spillway channels