Hazard Warning: Hazard information may be user-submitted and unverified. Conditions change frequently. Always scout rapids and obstacles yourself.
Rapid NH Class IV

Alderbrook rapids

Ammonoosuc - 5. Pierce bridge to NH 116 (NH)

Gauge Conditions
Runnable: 3.1 – 6.0 FT
Photo
Alderbrook rapids
Photo courtesy of American Whitewater
Description

After a long section of quickwater and class I the river approaches Alderbrook rapids about a half-mile below the powerline crossing.  Portaging is easiest from river right, which is also the roadside.  The rapid is series of large boulders and occasional eddies that define a consistent zig-zag through-line driving mainly river-center. There are some powerful pour-overs that will set your boat on a trajectory into the next boulder, so work is required to maintain the zig-zag pattern to the end of the rapid.

Location
Type
Rapid
Difficulty
Class IV
Mile Marker
6.0 mi
Directions
View Full Run
5. Pierce bridge to NH 116
Ammonoosuc
II-IV 7.4 mi
Current Conditions
5-Day Forecast
Whitewater data from
American Whitewater