Arenal–Bolueta sewer
BUSINESS AREA:  Construction
PROJECT TYPE:  Hydraulic tunnels
START DATE:  12 / 1997
END DATE:  09 / 2000
CLIENT:  Consorcio de Aguas Bilbao Vizcaya
LOCATION:  Vizcaya (Spain)
LENGTH:  2.474,00 m.
SECTION:  9 m²