One Hundred and Two River

One Hundred and Two River
One Hundred and Two River at Bridgewater Access southwest of Arkoe
Location
Country United States
State Missouri
CountyNodaway, Andrew, and Buchanan
Physical characteristics
SourceConfluence of the West Fork and Middle Fork of the One Hundred and Two River
 • location Hopkins Township, Nodaway County
 • coordinates40°32′16″N 94°50′46″W / 40.5376534°N 94.8461805°W / 40.5376534; -94.8461805
 • elevation980 ft (300 m)
MouthPlatte River
 • location
Washington Township, Buchanan County
 • coordinates
39°44′27″N 94°43′13″W / 39.7408285°N 94.7202391°W / 39.7408285; -94.7202391
 • elevation
827 ft (252 m)
Length78.6 mi (126.5 km)
Basin features
ProgressionOne Hundred and Two RiverPlatte RiverMissouri RiverMississippi RiverAtlantic Ocean
Stream gradient 2.7 ft/mi (0.51 m/km)

One Hundred and Two River is a stream in the northwest portion of the U.S. state of Missouri. It is a major tributary of the Platte River and is 78.6 miles (126.5 km) long.

It flows from source tributaries in southwestern Iowa about 80 miles (130 km) to the Platte. Via the Platte, it is part of the watershed of the Missouri River. Much of the river's course has been straightened and channelized.

According to the Geographic Names Information System, it is also known as the Hundred and Two River, and MoDOT uses 102 River.

According to the National Atlas, the river begins northwest of Hopkins, at the confluence of the East Fork One Hundred and Two River and the Middle Fork One Hundred and Two River. It is joined southwest of Hopkins by the West Fork One Hundred and Two River. All three of the forks originate in Iowa. At Bolckow, the river has a mean annual discharge of 605 cubic feet (17.1 m3) per second.