The opening of this conduit has, as its essence, a hydraulic function to avoid the risk of flooding of the areas adjacent to the estuary.
My city has suffered many floods throughout its history due to overflows of the riverbed at different points, although there is a tragedy with capital letters, that of August 26, 1983, when 600 liters per square meter inundated Bilbao and another hundred Basque localities, leaving dozens of victims.

It was many months of work.
With large excavators.
Wagging tons of dirt and rocks.
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Fueron muchos meses de trabajo.
Con grandes excavadoras.
Meneando toneladas de tierra y rocas.

But with tenacity everything is achieved.
Its cost is estimated at 20 million euros.

When he thought about this, it was the year 1950.
Peo for problems that could not be solved at the time was paralyzed.
On October 7 it was finally inaugurated.
What we thought impossible took life.
Leaving an island in the center of the city.
An island to build homes and recreation areas.
Where all the locals can walk and enjoy.

With the new industry and technological advances.
There is no limit, you can get anything.
Things that we thought impossible.
Things that looked like dreams of a cocky mind.
We are in a time that everything can be achieved.
With tenacity effort and a little of each one of us.

My city Bilbao, Basque country, Spain.
A nice city to meet.
To spend great moments.

Canon PowerShot SX730 HS

https://www.eitb.eus/es/pueblos-ciudades/videos/detalle/5609659/video-time-lapse-obras-isla-zorrozaurre-bilbao/
Original content by Original content by @txatxy***