Population: 69,083 Area: 797 square miles Population density: 87 per sq mi County History Detailed information is available from the River Inventory for Riley County Manhattan - River Mile 149Population size (2008): 52,284Square miles: 15 Population density: 3,486 people per sq mi Upper Kansas River Watershed HUC 10270101 Boat access points: Manhattan at river mile 149.3Dredge 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) Water Discharge Permits Ogden - River Mile 164Population size (2008): 2,152Square miles: 0.75 Population density: equivalent to 2,855 people per sq mi Upper Kansas River Watershed HUC 10270101 Boat access points: Access planned on river left at river mile 163.5 for 2011 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 Wastewater treatment: Ogden WWTP (Pop. served: 1,435) |
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