What is the current water flow rate of Nashua River?

Current discharge for Nashua River is measured in cubic feet per second (CFS) at USGS station #01095503 near Nashua River, Massachusetts. The baseline flow for this section is ~391 CFS.

Is Nashua River safe for tubing and kayaking today?

Floatability conditions depend on live flow rates and gauge depth. Riverable provides a real-time 1–10 Floatability Score calibrated specifically for tubes, kayaks, canoes, and stand-up paddleboards. Check the live status badge above before heading out.

Nashua River Flow & Floatability Conditions

Real-time USGS streamflow discharge in cubic feet per second (CFS), river gage depth, ambient water temperature, and craft-specific floatability ratings near Nashua River, Massachusetts.

Massachusetts · USGS #01095503Live USGS Streamgage· Updated 4m ago

Nashua River

near Nashua River

📍 Map & River Access42.42° N

FLOATABILITY INDEX⏱Profile: Leisure Tubing

9.5OUT OF 10Prime Float Window

⭐PRIME FLOAT WINDOW

Optimal discharge speed and safe water level

💡Paddle Advisory:

Perfect conditions for a relaxed, enjoyable paddle or float.

Minimum Rec: 150 cfs+241 cfs Above Min

DISCHARGE FLOW

391 cfs

Median: 391 CFS

Est. Baseflow↑ 0% median

GAGE HEIGHT

2.90 ft

Flood action: 8.12 ft

Water StageSteady (0.01'/h)

WATER TEMP

45° F

Wetsuit/dry: Advised (<50°)

Immersion...Cold Shock

AIR & SKY

51° F

Humidity: 48% · Clear

Rain: 2%6mph NW

Select Activity Profile to Recalibrate Scoring

Dynamic score calculation adjusts thresholds according to watercraft draft, hull clearance, and flow rate.

Active: Leisure Tubing (150–600 CFS)

Lazy summer river floats & family tubing. Ideal flow 150–600 CFS, warm sunshine, minimal rapids.

Updated with USGS 15m polling

24-Hour Streamflow Hydrograph (CFS)

Discharge telemetry vs. 30-year historical median

Observed Flow

Min Safe Float (150 CFS)

24 Hours Ago12 Hours AgoLive Sensor (391 cfs)

River Access & Scout Reports

Field verified river miles & access status

6.4 mi FloatEst: 3.5 hrs

Nashua River (Mile 0.0)

Paved concrete ramp • Free parking (12 slots) • Easy put-in

Open

Mile 2.4 - Exposed Gravel BarCaution

Clear navigation channel on river left bend

Passable

Explore Complete Access Map & GPS Take-outs →

🌊 Watershed Telemetry

About Nashua River Hydrology & Flow Dynamics

The Nashua River monitoring station (USGS Gauge #01095503) is positioned at latitude 42.419° and longitude -71.666° near Nashua River, serving as a vital streamflow telemetry reference for recreational paddlers, tubers, anglers, and water resource managers in Massachusetts at an elevation of 250 ft above sea level.

Streamflow discharge on Nashua River fluctuates based on seasonal precipitation, upstream reservoir releases, groundwater spring baseflows, and watershed snowpack runoff. Typical baseline discharge averages around ~391 CFS with typical river depths near 2.9 ft. Instantaneous discharge is measured in Cubic Feet per Second (CFS)—where 1 CFS equates to approximately 7.48 gallons (28.3 liters) of water rushing past the sensor each second.

Riverable continuously ingests 15-minute telemetry from the USGS National Water Information System (NWIS) and compares instantaneous volume against calibrated floatability ratings and safety thresholds.

🛟 Craft Guide

Nashua River Flow Sweet Spots by Activity

Different paddlecraft require different water volumes to float comfortably without scraping gravel bars or facing hazardous hydraulics.

🛟

Leisure Tubing

150 – 500 CFS

Gentle current with sufficient depth over riffles. Below 150 CFS expect frequent bottom scraping; above 600 CFS currents create entrapment risks.

🛶

Rec Kayak & Canoe

250 – 1,200 CFS

Optimal paddling flow with responsive tracking and easy maneuvering around gravel shoals, rock gardens, and gentle river bends.

⚡

Whitewater & Raft

800 – 3,500+ CFS

Swift continuous currents, wave trains, and surging hydraulic features. Requires spray skirts, helmets, and intermediate-to-advanced river maneuvering skills.

🎣

Fly Fishing & Wading

100 – 600 CFS

Safe wading velocities and accessible bank pockets. High flows over 800 CFS make cross-river wading unsafe and cloud water clarity.

⚠️ River Safety Guidelines

Essential Paddling & Tubing Checklist for Nashua River

🦺 1. Wear a USCG-Approved PFD

Submerged strainers, unexpected drop-offs, and swift underwater hydraulics can overpower strong swimmers. Always wear a properly fitted life jacket.

🌡️ 2. Cold Water Shock Awareness

Water temperatures below 60°F (15.5°C) can trigger involuntary gasp reflexes and rapid muscle incapacitation. Check live water temp before launching.

🪵 3. Watch for Strainers & Log Jams

Fallen trees and branches allow water to pass through while trapping watercraft against obstacles. Give outer river bends wide berth.

☀️ 4. Hydration & Sun Protection

Water surface reflection intensifies UV radiation exposure. Carry at least 1 liter of potable drinking water per person for every 2 hours on the river.

❓ FAQ

Frequently Asked Questions About Nashua River

How fast does water flow on Nashua River?

River speed depends on discharge (CFS) and gradient. In general, typical floating speeds range from 1.5 to 2.5 mph in inner tubes and 3 to 4.5 mph in recreational kayaks.

How often is the flow data refreshed for Station #01095503?

The USGS satellite telemetry system polls sensor probes and transmits instantaneous discharge and gage height readings every 15 minutes.

Can rain in the watershed cause Nashua River to flood?

Yes. Heavy rain events within the upstream drainage basin can cause rapid streamflow surges hours after a storm. Always check our 7-Day Rainfall Forecast tab before heading out.

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