Isinglass River at Rochester Neck Rd, near Dover, NH

Strafford County, New Hampshire · USGS gauge 01072870 · NWS ISIN3 · New Hampshire river levels

Is Isinglass River at Rochester Neck Rd, near Dover, NH flooding right now?

Isinglass River at Rochester Neck Rd, near Dover, NH measured 3.92 ft on 2026-10-27 17:15:00 UTC. No NWS minor flood stage is published for this gauge.

Gauge height

3.92 ft

as of 47 min ago

Streamflow

74 cfs

data refreshed 16 min ago

The highest crest on record was 21.81 ft on Tue, Apr 17, 2007.

Streamflow outlook

NOAA National Water Model forecast, issued 12 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

No National Weather Service flood stage is published for this gauge, so no flood category can be shown — why some gauges have no flood stage.

Highest crests on record

Stage	Date
21.81 ft	2007-04-17
19.37 ft	2006-05-14
17.07 ft	2010-03-31
16.74 ft	2023-12-19
14.65 ft	2022-12-24

Nearby gauges

Gauge	Distance	County
Cocheco River near Rochester, NH	2.5 mi	Strafford County
Cocheco River, at Spaulding Turnpike, at Dover, NH	3.6 mi	Strafford County
Oyster River near Durham, NH	6.0 mi	Strafford County
Lamprey River near Newmarket, NH	9.1 mi	Strafford County
Winnicut River at Greenland, near Portsmouth, NH	14.8 mi	Rockingham County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast