Fujifilm X100V with 5% diffusion filter
ISO 250 for 1/250 sec. at ƒ/2.0
Acros film simulation
From Peril to Progress: Intro to the Daimon Dam
Location: Daimon Dame, Yamanashi Prefecture, Japan
Timestamp: 13:20 on July 5, 2023
The Daimon River (大門川) originates in the Yatsugatake Mountains (八ヶ岳連峰) and flows southward, eventually merging with the Sudama River (須玉川) and the Kasen River (河川) before joining the Fuji River (富士川).
Over the years, the steep slope of the river has led to significant damage, including major flood disasters in 1908 and 1959. Furthermore, as the population grew downstream, there was a growing need for a fresh water supply in the local communities. To address these issues, a multi-purpose dam was constructed as part of a development project. Its purpose was to control floods and provide drinkable water for the area.
The construction of the dam was completed in March 1988, reaching a height of 840 meters (approximately 2,756 feet) from its foundation, the dam is small by most standards.
When capturing this scene, my attention was captivated by the facade of the dam. Its cold, emotionless concrete stood out, adorned with a combination of symmetrical, asymmetrical, and curved lines, complemented by various quadrilateral shapes.
Fujifilm X100V with 5% diffusion filter
ISO 160 for 1/400 sec. at ƒ/2.6
Provia/Standard film simulation
Kiyosato Lake at the Foot of the Kiyosato Plateau
Location: Daimon Dam, Yamanashi Prefecture, Japan
Timestamp: 13:20 on July 5, 2023
Kiyosato Lake (清里湖・Kiyosato-ko), receives its water from the Daimon River, which originates in the Yatsugatake Mountains (八ヶ岳連峰・Yatsugatake Renpō), located in Yamanashi Prefecture.
During the autumn season, Kiyosato Lake becomes a favored spot as the foliage transforms into vibrant hues, creating a stunning display of colors. If you time it right and capture the ideal lighting conditions, the lake's surface offers vibrant reflections of reds, oranges, and yellows!
Due to its role as a source of drinking water, recreational activities are strictly prohibited at the lake, resulting in a flourishing wildlife habitat along the riverbanks. Birdwatching enthusiasts also frequent this lake, making it a popular destination for observing and photographing various bird species.
Fujifilm X100V with 5% diffusion filter
ISO 160 for 1/300 sec. at ƒ/2.0
Astia/Soft film simulation
Reflections & Technological Achievement
Location: Daimon Dam, Yamanashi Prefecture, Japan
Timestamp: 13:35 on July 5, 2023
Kiyosato Lake (清里湖・Kiyosato-ko) in Yamanashi Prefecture stands out among the numerous reservoirs I have visited in the Kanto Plain. Initially, I found some of the embankment’s appearance somewhat unattractive, but little did I know that there was a fascinating reason behind its unique design.
The lake is nestled amidst mountain slopes comprised of dense volcanic bedrock and volcanic sediment from the Yatsugatake volcanic mountain range of which all the volcanoes are extinct except for Mount Yoko.
Due to the porous nature of this soil, water leakage became a significant concern. To combat this issue, the eastern, northern, and northeastern embankments were meticulously coated with multiple layers of asphalt, effectively preventing water from seeping through.
During its construction, this ingenious solution to minimize leakage was considered a groundbreaking technological achievement. The Japan Society of Civil Engineers was greatly impressed by this approach, leading them to bestow the Yamanashi Prefecture Civil Engineering Department with a prestigious technology award in 1986. A monument commemorating this accomplishment can be found in a small park across from the parking lot, conveniently situated west of Daimon Dam.
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