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Engineering Projects: Canalització del Marge Esquerre del Riu a Arinsal

Infrastructure


Place:

La Massana (Principat d'Andorra)


Date: 2000-2003
Canalització del Marge Esquerre del Riu a Arinsal, Engineering (Principality of Andorra)

Canalització del Marge Esquerre del Riu a Arinsal

The works developed in this project are required to carry on the channeling on the left bank of the river of Arinsal in the stretch from the Prat de la Mola building until the Aina building (la Massana).
 
The river is now channeled through the right side in a section through a masonry wall. The project developed here is to channel the left margin.
 
The walls that make up the left channel are masonry and concrete walls and are divided into two sections. One is the wall 1 of 107.2 m in length.
 
This wall is located between the upstream section out of the corner of the building, to join in the downstream bridge at KP 107.2. The maximum height of this wall is 7 m.
 
The second section is wall 2 of 25,45 m in length. This wall is located between the bridge (KP 123.17) and the breakwater located downstream (KP 148.62). The maximum height of this wall is 8.52 m and is of reinforced concrete.

The work is located along the road of Arinsal (CS N. 410) at the entrance to the town after Erts.

The layout plan of the wall 1 is defined by considering a parallel to 7 "canes" (10.88 m) in the route of the wall in the existing right margin, linking the wall with the existing building upstream and downstream of the existing bridge.
 
The layout plan of the wall 2 is a straight line between the bridge and the existing breakwater downstream. This project does not include the channeling of the right bank downstream of the bridge, not currently channeled.
 
The types of masonry walls is executed with HM-25 concrete in the wall 1 and reinforced concrete in the wall 2.

The coronation of the walls practically coincides with the slope of the road, and connects with the level of the board bridge.