Concord River
★ Wild & Scenic
Middlesex Co. · 16 mi · Class I
667CFS/ 5.42 ft
Above Optimal
→Stable
Optimal: 100–600 CFS · USGS #01099500
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
16 mi
Length
Class I
Difficulty
100–600 cfs
Optimal
320 cfs
Avg Flow
290 cfs
Hist. Median
#01099500
USGS Gauge
Minuteman National Historical Park · Great Meadows NWR · Concord Wild & Scenic River Study

Henry David Thoreau paddled this river in 1839 and wrote about it in his first book. The Concord flows 16 miles through the literary and revolutionary heart of Massachusetts — past Old North Bridge, Minuteman National Historical Park, and the Great Meadows National Wildlife Refuge. A gentle flatwater paddle steeped in American history.

Trip sections
Egg Rock to Old North Bridge — 5 mi, historic corridor
Great Meadows to Billerica — 8 mi, wildlife refuge
Outfitters
South Bridge Boat House
Concord River canoe and kayak rentals, downtown Concord
OARS River Tours
Guided Concord River paddle trips
72-Hour Flow Forecast
NOAA NWPS
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10-Year Flow Patterns
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Your Optimal Range
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Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and trip sections may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level. If you spot an error, use the Improve This River button at the top of the page — your local knowledge is what makes this atlas accurate.