Sakawa (river)
| Sakawa | ||
 the Sakawa in the Ashigara plain |
||
| Data | ||
| location | Japan | |
| River system | Sakawa | |
| source | at Fuji 35 ° 20 ′ 39 ″ N , 138 ° 50 ′ 52 ″ E |
|
| Source height | approx. 880 m TP | |
| muzzle | at Odawara in Sagami Bay Coordinates: 35 ° 15 ′ 38 " N , 139 ° 11 ′ 3" E 35 ° 15 ′ 38 " N , 139 ° 11 ′ 3" E |
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| Mouth height | 0 m TP | |
| Height difference | approx. 880 m | |
| Bottom slope | approx. 19 ‰ | |
| length | 46 km | |
| Catchment area | 582 km² | |
| Left tributaries | Kawaoto, Kawauchi | |
| Right tributaries | Kari | |
| Big cities | Odawara | |
| Medium-sized cities | Gotemba | |
| Small towns | Matsuda , Oyama | |
The Sakawa ( Japanese 酒 匂 川 , Sakawa-gawa ) is a river on the Japanese island of Honshū . It is 46 km long, has its source on Mount Fuji and flows into Sagami Bay . It bears the name Sakawa in the area of Kanagawa Prefecture , while it is called Ayuzawa ( 鮎 沢 川 , Ayuzawa-gawa ) on its upper reaches in Shizuoka Prefecture .
description
The spring is located on the eastern slope of the Fuji volcano on the site of a training area for the Self-Defense Forces . As a steep mountain stream, the Ayuzawa overcomes a considerable difference in altitude to the center of Gotemba , where it takes in several other source streams. After passing the small town of Oyama , he crossed the prefectural border and was henceforth called Sakawa. It then flows through a narrow valley between the southwestern part of the Tanzawa Mountains and the northern foothills of the Hakone volcano . He crosses the Gotemba line , the Tōmei motorway and the national road 246 several times . West of Matsuda , the Sakawa reaches the Ashigara plain and has only a slight slope. As a sluggishly flowing body of water, it deposits large amounts of sand and sediments. Eventually it flows into Sagami Bay east of downtown Odawara .
In order to contain the frequent floods in the agriculturally used Ashigara plain, the first dikes were built in the early Edo period , which were subsequently expanded and reinforced. The construction of the Miho Dam in the side valley of the Kawauchi provided further relief in the 1970s.
