History

1961

Nov.

Water Resources Development Promotion Law promulgated and implemented.

Water Resources Development Public Corporation (WARDEC) Law promulgated(implemented in Feb. 1962).

1962

Apr.

Tone and Yodo River Systems designated as priority area for water resources development based on the Water Resources Development Promotion Law.

May

WARDEC established.

Aug.

Tone River System Water Resources Development Basic Plan developed.

Yodo River System Water Resources Development Basic Plan developed.

Oct.

Comprehensive National Development Plan approved by the Cabinet.

1964

Oct.

Chikugo River System designated as priority area for water resources development based on the Water Resources Development Promotion Law.

1965

Jun.

Kiso River System designated as a priority area for water resources development based on the Water Resources Development Promotion Law.

1966

Feb.

Chikugo River System Water Resources Development Basic Plan developed.

Nov.

Yoshino River System designated as a priority area for water resources development based on the Water Resources Development Promotion Law.

1967

Mar.

Yoshino River System Water Resources Development Basic Plan developed.

1968

Oct.

Aichi Canal Public Corporation incorporated into WARDEC
Kiso River System Water Resources Development Basic Plan developed.

1969

May

New Comprehensive National Development Plan approved by the Cabinet.

1974

Dec.

Ara River System designated as priority area for water resources development based on the Water Resources Development Promotion Law.

1976

Apr.

Tone and Ara River Systems Water Resources Development Basic Plan developed.

1977

Nov.

Third Comprehensive National Development Plan approved by the Cabinet.

1987

Jun.

Fourth Comprehensive National Development Plan approved by the Cabinet.

Oct.

National Land Agency developed National Comprehensive Water Resources Plan (Water Plan 2000).

1990

Feb.

Toyo River System designated for as priority area water resources development based on the Water Resources development Promotion Law.

May

Toyo River System Water Resources Development Basic Plan developed.

1998

Mar.

Grand Design for National Development in the 21st Century (Fifth Comprehensive National Development Plan) approved by the Cabinet.

1999

Jun.

National Land Agency developed National Comprehensive Water Resources Plan (Water Plan 21).

2001

Dec.

Public Corporations Consolidation Plan approved by the Cabinet.

2002

Dec.

Japan Water Agency Law promulgated and implemented.

2003

Oct.

Japan Water Agency established.

Japan Water Agency Law Enforcement Ordinance promulgated and implemented.

1st Mid-Term Objective instructed by Ministry of Land, Infrastructure, Transport and Tourism (MLIT).

1st Mid-Term Plan made.

Work Procedures of Japan Water Agency enacted.

Dec.

Tokura Dam construction cancellation policy made.

2004

Jun.

Basic Plan for Kiso River System Water Resources Development totally altered.

2005

Mar.

Boso Canal Construction completed.

Aichi Canal Stage II Project (rehabilitation of canal facilities) completed.

Apr.

Basic Plan for Chikugo River System Water Resources Development totally altered.

Ryochiku-heiya Canal Stage II Project operationalized.

2006

Feb.

Basic Plan for Toyo River System Water Resources Development totally altered.

Mar.

Kagawa Canal Emergency Reconstruction Project completed.

2007

Mar.

Aichi Canal Stage II Project (desilting of Makio Dam reservoir) completed.

2008

Jan.

Toyogawa Canal Stage II Project (Large-scale earthquake measures, asbestos pipe removal measures) operationalized.

Feb.

2nd Mid-Term Objective instructed from MLIT.

Mar.

2nd Mid-Term Plan made.

Mar.

Tokuyama Dam Construction Project completed.

Jun.

Basic Plan for Toyo River System Water Resources Development partially revised.

Basic Plan for Kiso River System Water Resources Development partially revised.

Kiso River System Link Canal Construction Project operationalized.

Jul.

Basic Plans for Tone and Ara River Systems Water Resources Development totally altered.

2009

Mar.

Basic Plan for Tone and Ara River Systems Water Resources Development partially altered.

Basic Plan for Kiso River System Water Resources Development partially altered.

Kiso River Right Bank Canal Emergency Reconstruction Project operationalized.

Inbanuma Development Facilities Emergency Reconstruction Project completed.

Kagawa Canal Emergency Reconstruction Project (facilities exclusive to domestic water) completed.

2010

Mar.

Gunma Canal Emergency Reconstruction Project completed.

2011

Mar.

Takizawa Dam Construction Project completed.

2013

Feb.

Basic Plan for Chikugo River System Water Resources Development partially altered.

Fukuoka Canal Construction Project and, Oyama Dam Construction Project completed.

Mar.

3rd Mid-Term Plan Objective instructed from MLIT.

3rd Mid-Term Plan made.

2014

Aug.

Basic Plan for Tone and Ara Rivers Water Resources Development partially altered.

Dec.

Emergency Reconstruction Project of Gunma Canal and Boso Canal operationalized.

2015

Feb.

Large scale earthquake measures for Tone Canal operationalized.

Mar.

Kiso River Right Bank Canal Emergency Reconstruction Project completed.