|Forche des Republiques,
Coster Blanches, Ki-ra-ru-tah, Mahohevaohe 
The Republican River near Riverton, Nebraska
North Fork Republican River,
Frenchman Creek, Red Willow Creek,
South Fork Republican River,
Sappa Creek, Prairie Dog Creek
|- location||Haigler, Nebraska|
|- elevation||3,253 ft (992 m)|
|- location||Junction City, Kansas|
|- elevation||1,043 ft (318 m)|
REPUBLICAN RIVER Latitude and Longitude:
|Length||453 mi (729 km)|
|Basin||24,900 sq mi (64,491 km2)|
|Discharge||for Junction City about 3 mi (4.8 km) above the mouth |
|- average||848 cu ft/s (24 m3/s)|
|- max||33,300 cu ft/s (943 m3/s)|
|- min||3.2 cu ft/s (0 m3/s)|
|Watersheds||Republican- Kansas- Missouri- Mississippi|
|Reservoirs||Swanson Lake, Harlan County Reservoir, Milford Lake|
The Republican River is a river in the central Great Plains of North America, rising in the High Plains of eastern Colorado and flowing east 453 miles (729 km)  through the U.S. states of Nebraska and Kansas.
The Republican River is formed by the confluence of the North Fork Republican River and the Arikaree River just north of Haigler in Dundy County, Nebraska. It joins with the South Fork Republican River immediately southeast of Benkelman, Nebraska. All three tributaries originate in the High Plains of northeastern Colorado.    From the confluence, the river flows generally eastward along the southern border of Nebraska, passing through Swanson Reservoir and Harlan County Reservoir before curving southward into the Smoky Hills region of Kansas. The Republican River joins the Smoky Hill River at Junction City, Kansas to form the Kansas River.
Some cities along the river are McCook, Nebraska, Clay Center, Kansas, Concordia, Kansas and Junction City, Kansas. Near Concordia is the Republican River Pegram Truss, a bridge that goes over the Republican River that is listed on the National Register of Historic Places.
As early as 1785, the Spanish and French had identified one of the villages of the Pawnee people as aldea de la Republica (little village of the Republic). A French traders' custom was to name rivers for the tribal villages located on their banks.  In this way, the north fork of the Kansas River was named Forche des Republiques or Republican Fork. 
The Kitkehahkis Pawnee villages farmed corn, beans, and pumpkin in the fertile Republican valley floor but seasonally left to hunt buffalo in the plains to the west and south. 
The Kitkehahkis, or Republican Pawnee, occasionally abandoned and relocated various villages along the Republican River. In 1806, first the Spanish and then the Americans journeyed to the large Kitkehahkis village on Republican River, then near present Guide Rock, Nebraska. Both parties were seeking the tribe's assistance in enforcing competing claims to the Louisiana Territory. Leading the much smaller American expedition, Lieutenant Zebulon Pike convinced the Kitkehahkis to accept the American Flag in place of the Spanish (Main article: Pike-Pawnee Village Site).
Prior to 1864, the Kansas River was publicly navigable under Kansas law. A side-wheel steamboat of 125 tons burden, Financier No. 2, reached the Republican River in 1855 and ascended it some 40 miles.  However, in 1864, railroad interests passed a bill through the Kansas Legislature entitled, "An act declaring the Kansas, Republican, Smoky Hill, Solomon, and Big Blue rivers not navigable, and authorizing the bridging of the same." Railroads were thus permitted to bridge or dam the Republican as if it were never declared navigable. 
The Kansas Pacific Railway reached the fork of the Republican in 1866, crossing into the Junction City town site. The Junction City and Fort Kearney Railroad was constructed up the valley of the Republican to Clay Center in 1873. 
The 1864 law was repealed in 1913;  however, under Kansas Law, public access, whether for transport or recreation, is permitted only on publicly owned rivers. The State of Kansas owns only the Kansas and Arkansas Rivers as well as the portion of the Missouri River adjoining the northeastern corner of the state.  As such, the limit of public river access is at the mouth of the Republican River. A public boat access ramp was opened on the mouth of the Republican River in 2009 just upstream of the railroad bridge,  providing access to the upper end of the Kansas River National Water Trail, a part of the National Water Trail program. 
Milford Lake, the largest man-made lake in Kansas, was completed on the Republican in 1967.
Allocation of the water from the Republican River is governed through an agreement called the Republican River Compact, involving the states of Nebraska, Kansas and Colorado, as modified by the settlement  of a United States Supreme Court case involving a water-use dispute under the Compact. 
The storm of May 31 and June 1, 1935, (called "Nebraska's Deadliest Flood") dumped an average rainfall of 9 inches (230 mm) on the river's watershed. This storm was also unique in that it moved in the same direction as the drainage basin. As a result, the Frenchman, Red Willow, Medicine, Deer, Muddy, and Turkey creeks all reached their flood peaks at the same time as the crest passed on the Republican River.
According to witness accounts, the roar of the water could be heard coming down the Republican Valley 5 miles (8 km) away. Many survivors also reported that there were two crests - the water came up on May 28, then receded slightly, but the second crest on June 1 greatly exceeded the first. At one point, the water rose 6 feet (1.8 m) in 30 minutes and was 10 to 15 feet (3 to 5 m) higher than the previous record crest. Another account states that the Republican rose 10 feet (3 m) in 12 minutes in McCook, destroying the structures in its path. Water was 20 feet (6 m) deep in some places, and the discharge was 280,000 cubic feet per second (7,900 m3/s), more than 320 times the normal flow today.
Estimates show 113 people killed. From 11,400 to 41,500 head of cattle were killed; one report said that carcasses littering the roads made them impassable. A total of 341 miles (549 km) of highway and 307 bridges were destroyed, and 74,500 acres (301 km2) of farmland were inundated. 
REPUBLICAN RIVER INFORMATION
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