Air Quality Alert
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The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Ozone. WHERE...Douglas, Teller, western Elbert, western El Paso and central Arapahoe Counties. Locations include, but are not limited to Castle Rock, Kiowa, Monument, Manitou Springs, and Woodland Park. WHEN...200 PM Tuesday April 21 to 1000 PM Tuesday April 21 IMPACTS...Ozone concentrations could reach the Unhealthy for Sensitive Groups category within the advisory area Tuesday afternoon and evening. Ozone levels will improve overnight Tuesday night. HEALTH INFORMATION...Public Health Recommendations: Increasing likelihood of respiratory symptoms and breathing discomfort in active children and adults and people with lung disease, such as asthma. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion.

CROTON RIVER

Last Updated: April 21, 2026

Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Croton River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Croton River, the highest being situated at an altitude of ft, the .

Get the latest River Levels, Streamflow, and Hydrology for in River flows across 1 streamgages of the Croton River


15-Day Long Term Forecast


       
River Streamflow Levels
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Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Croton R @ New Croton Dam Nr Croton-On-Hudson Ny
USGS 01375000 		371 cfs 2.53 ft -9.95
Seasonal Discharge Comparison
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Maximum Streamflow Discharge
Streamflow Elevation Profile

Historically, it served as an important source of water for New York City, prompting the construction of several reservoirs and dams along its length. The largest of these, the Croton Dam, was completed in 1842 and remains an important part of the city's water supply system. The river is fed by several tributaries and has a diverse hydrology, ranging from rapids and waterfalls to calm stretches. Today, the Croton River is also used for recreational activities like fishing and kayaking, as well as providing water for local agriculture. Despite some pollution concerns, efforts have been made to protect and restore the river's ecosystem, including the removal of obsolete dams and restoration of fish habitat.