Riley County

Population: 69,083 0761
Area: 797 square miles
Population density: 87 per sq mi
County History

Detailed information is available from the River Inventory for
Riley County

 

 

 

 


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Manhattan – River Mile 149

upperkawsmall

Upper Kansas River Watershed HUC 10270101

Population size (2008): 52,284
Square miles: 15
Population density: 3,486 people per sq mi

Boat access points: Manhattan at river mile 149.3

Dredge sites/off river pit mines: There are no in-river dredge sites in Riley County.  There are two off river pit mines near the Kaw between Manhattan and Ogden.

Bridges over Kaw: KS Highway 177/18 Bridge at river mile 149.3

Wastewater treatment: Manhattan WWTP (Pop. served: 21,009)
Water sources: Groundwater pumped from 16 wells near the junction of the Big Blue and Kansas Rivers.(Manhattan water quality report)

Ogden – River Mile 164

Population size (2008): 2,152

Upper Kansas River Watershed HUC 10270101

Upper Kansas River Watershed HUC 10270101

Square miles: 0.75
Population density: equivalent to 2,855 people per sq mi

Boat access points: Ogden Boat Access

Dredge sites/off river pit mines: There are no in-river dredge sites in Riley County.  There are two off river pit mines near the Kaw between Manhattan and Ogden.

Bridges over Kaw: KS Highway 18 Bridge at river mile 165.1

Water Discharge Permits: none

Wastewater treatment: Ogden WWTP (Pop. served: 1,435)

Water Discharge Permits
Click on markers for permit data from EPA MyEnvironment


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