Welcome to launch. We are currently expanding our databases quickly — user input and corrections are needed and appreciated. The content and functions on this site are deep. If you find something that is out of order, please let us know.
Massachusetts · Middlesex Co.

Concord River

Wild & Scenic
Middlesex Co. · 16 mi · Class I
Optimal: 100–600 CFS · USGS #01099500
320 avg
331CFS
4.77 ft gauge height
Optimal
Stable
Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 320 cfsHist. median: 290 cfsUSGS #01099500
Minuteman National Historical Park · Great Meadows NWR · Concord Wild & Scenic River Study

About

From Egg Rock to Old North Bridge, five miles of the Concord River pass through Minuteman National Historical Park in Middlesex County, following the same channel that carried colonial militia past these banks in 1775. The river flows at 320 CFS average through Class I water, with an optimal range of 100–600 CFS on USGS gauge 01099500. Below the historic corridor, eight miles through Great Meadows National Wildlife Refuge offer quieter paddling focused on waterfowl and wetland habitat rather than Revolutionary War sites. At 16 miles total, the Concord moves slowly enough that most of its length can be covered in day trips launched from South Bridge Boat House or guided through OARS River Tours. The river is currently under Wild & Scenic River Study, which could formalize federal protection for the corridor that connects Concord's historic downtown to the broader Sudbury River system.

Solunar Fishing Activity
🌒
Waxing Crescent
15% illumination
Poor
Moon overhead
8:13 AM
Moonrise
12:35 PM
Moonset
3:52 AM
Moon underfoot
8:13 PM
Next full moon: May 3111 days
Outfitters
South Bridge Boat House
Concord River canoe and kayak rentals, downtown Concord
OARS River Tours
Guided Concord River paddle trips
10-Year Flow Patterns
See 10 years of flow patterns for this river — historical analysis is a Pro feature.Upgrade to Pro →
Your Optimal Range
Set your personal optimal CFS window per river — custom ranges are a Pro feature.Upgrade to Pro →
Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

Know the Concord River? Your local knowledge makes this page better for every paddler, angler, and guide who comes after you.
Improve This River →