Drainage tunnel.

Name.：Minneapolis darainage tunnel.
Name of a country.：The United States.
Address.：Minnesota state Minneapolis.
Facilities.／Rough classification.：City industrial relation.
Facilities.／Detailed classification：Supply and processing.
Usage and facilities.：Facilities related to upper and lower water service.
Space shape classification.：
Extension.（m）：
Area.／Sectional area.(m2)：
Volume.(m3)：
Depth.(m)：
Estabishment year.：
Composition of geological features.：
Geogaphical features.：
Digging industrial method.：
Besides,the industrial method.：
Special mention matter.：
Drainage to life which is familiar infrastructure facilities is equipment to which maintaenance is sped up most aiming at the 21st century.
Drainage to life which is familiar infrastructure facilities is equipment to which maintaenance is sped up most aiming at the 21st century.
Offer of material.：Oobayashi group.／Message from underground.
contents.
To the home page of the ground environmental research room.
To a JAPANESE page.