Anadromous Fish Passage on the Bronx River
Goals
• Establish a sustainable river herring population by installing fish passage over dams.
• Expand access to freshwater spawning habitat as a part of a regional effort restore river herring populations.
• Demonstrate and maximize the ecological health and social value of the Bronx River.
Alewife
Blueback
American eel
Marit LarsonNYC Parks Natural Resources GroupOctober 22, 2012
182nd St Dam
Zoo (Bolton) Dam
Stone Mill Dam
Three dams on the river block access to freshwater spawning habitat in the Bronx.
• Feasibiliy assessment (2003-2004)
• Fish passage way 50% design (2005-2009)
• Fish passage Final Design for 182nd St dam (Dec 2011)
Project History
• Fish Stocking- 200 Alewife (2006)- 400 Alewife (2007)- DEC regulations prohibit
beginning 2007; loophole in regulations may allow stocking after fish ladder is installed.
182nd Street Dam
(Bolton Dam)100% design underway; fishway will be embedded in bedrock falls
Bronx Zoo Double Dam, WCS
Fishway begins downstream and runs in a chute around the dam to avoid impacting National Historic Landmark.
100% design underway
Stone Mill Dam, NYBG
Permits: Seek permission to stock impoundment
Seek Funding: ACE?Current/past funding: WCS/NOAA, NFWF, CT DEP, EPA/NEWPCC, NYSDOS, Bronx Borough President, U.S. FWS,
In-kind match: CT DEP, USGS Conte Lab, SUNY ESF, Queens College
Cost: ~$1.6 million/ dam
Maintenance, Monitoring and Evaluation: Seek institutional, community and academic partners
Expand extent and design: Upstream and dam removal
Next and Future Steps