Gzira reservoir to hold 10,000 cubic metres of rainwater
Work has picked up in Gzira on a reservoir of 10,000 cubic metres of water which will hold rainwater run-off from Wied Għollieqa.
Resources Minister George Pullicino visited the site near the national pool this morning and explained that it is part of the major flood relief project which also involves a system of galleries to channel rainwater away from flood-prone areas.
He said the new reservoir will be a soak-away facility which will not actually store rainwater but allow it to percolate down to recharge the water table. The reservoir, set to be completed by March, will be linked to the Attard-Ta' Xbiex gallery. The gallery itself will hold water until it can be pumped into the reservoir.
The top of the reservoir may be used for parking.
In all, the flood relief project will be able to hold and recycle up to 700,000 cubic metres of rainwater every year compared to the storage capacity of 300,000 square metres of current reservoirs.
The boring of the 11km gallery started from the Attard end some weeks ago. The gallery will have a diameter which varies between 3.3 metres and six metres.
There will also be a 2.2km gallery in Zebbug and a 3.2km gallery from Żabbar to Marsascala.
The project costs €57m, which is being funded up to 85% the EU's cohesion fund. The project also includes a number of culverts and new bridges in Qormi .
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ben wood
Oct 26th 2012, 02:22
sounds good value to me!! thank you EU
Marco Cremona
Oct 25th 2012, 15:54
Soakaways also make good use of space as they are able to redirect significant volumes of water (numerous times the 10,000 cubic metres capacity) for recharge. On the other hand, a reservoir is only able to recover its volume once every year.
Given that government seems to be in favour of soakaways, we can expect that it now rehabilitates the various soakaways built in the 70s!
Marco Cremona
Oct 25th 2012, 15:50
In my opinion, soakaways are the most practical way to recover some stormwater in coastal locations at the end of a catchment (which would otherwise be lost to the sea), without risk to the part of the groundwater that is used for the potable water supply.
Marco Cremona
Oct 25th 2012, 15:35
However, it's a pity that a 60 million Euro project only has a 1 million euro component that attempts to recover something out of the millions of cubic metres of stormwater that it will channel to the sea every year. (so it is now on record that this project is 98.3% flood relief and 1.7% water recovery).
Lino Busuttil
Oct 25th 2012, 16:10
That was my point earlier, water reservoirs need to be built in hundreds along the path of the running water and upstream as far as possible. Use roundabouts, fields, quarries anything the government can use. What a pity spending all that money and not solving anything regarding the water table depletion!
Lino Busuttil
Oct 25th 2012, 15:04
It's a fifty years back technology, Mintoff style bore holes. I hope common sense prevails and proper UPSTREAM catchments are biuildt not at the very END of the problem, at Gzira where the valley ubruptly ends by illogical development if the last 20 years in this area! Much needed reservoirs San gwann, Naxxar, Attard can stop this flow of water from creating havoc and being wasted!
Thomas Pace
Oct 25th 2012, 14:42
Some people just always say bla bla bla. This is a good initiative as we save more water. Well it is not enough but it is one step ahead.
Anthony Azzopardi
Oct 25th 2012, 14:08
How do we know that a soak-away so close to the sea will not have time to recharge the aquifer but merely drain away into the sea, and therefore money down the drain? If adequate studies were not done, would this not therefore be, by definition, a half-baked project?
Edward Mallia
Oct 25th 2012, 14:27
The first thing that came to mind. Can any hydrologist hazard an opinion on whether water percolating down at Gzira would reach any useful water table?
J Martinelli
Oct 25th 2012, 14:51
I suppose this project was dreamt one night and implemented in the morning!
Had your fears been valid, would you not think that one renowned hydrologist would not, by now, threw in his two cents worth?
Half-baked projects were when hundreds of bore-holes were drilled and pumped dry a few decades ago.
The system percolates DOWN and not sideways, up and down roads leading to the sea.
j brincat
Oct 25th 2012, 14:00
Yes and I'm proud to announce that it would be completed in the anno mai.
How long have we recycled the same propaganda before an election!
At least come out with something original!
(jb)
Paul Caruana
Oct 25th 2012, 13:23
They should seriously consider digging additional underground tunnels to take some of the surface road traffic during peak congestion time - these should prove to be less controversial than overground flyovers!
C Cassar
Oct 25th 2012, 14:55
You can't just dig a tunnel underground and let vehicles use it. Additional escape tunnels need to be dug also and these will have to be fitted with emergency equipment such as fire and rescue facilities. This is extremely expensive when taking into account all of the health and safety infrastructure that is required. Why do you think for example the Channel Tunnel is shuttle train only?
J Martinelli
Oct 25th 2012, 14:58
Where do surface and underground traffic converge?
However, your suggestion does present a choice, either go slow along the way or go fast on surface and underground thoroughfares but then stand still for a long time at the discharge point. Have you heard of the funnel effect?
The real solution is the higher use of public transport and reducing personal car use.
Please choose the reason of your report below: