Paddle Report

Hay Brook To Bridge Above Medway At State Route 157 river run

Maine, USA Penobscot River, East Branch 12.0 mi long Class III+
Today high
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Tonight low
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Current flow
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% of normal
81%
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Linked streamgauge
-- cfs
Gauge height
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 Hay Brook To  Bridge Above Medway At State Route 157 -- Maine paddle run
Hay Brook To Bridge Above Medway At State Route 157 Maine · Penobscot River, East Branch
About this run

Hay Brook To Bridge Above Medway At State Route 157

The Whitewater River Run from Hay Brook to the Bridge above Medway at State Route 157 in Maine is a popular destination for whitewater enthusiasts. The ideal streamflow range for this run is typically between 1,200 and 2,000 cfs. The class rating varies between II to III+, depending on the water level.

The segment mileage for this run is approximately 7 miles. The river features several notable rapids, including Big A and Little A rapids, which are both Class III+ rapids. Other notable rapids include Pinball, The Narrows, and Teardrop. Some of the obstacles in this stretch of the river include submerged rocks and fallen trees.

There are specific regulations in place for this area. Paddlers must wear personal flotation devices at all times, and motorized watercraft are not allowed on this stretch of the river. Additionally, all paddlers must obtain a permit from the Maine Department of Inland Fisheries and Wildlife before using this section of the river.

Overall, the Whitewater River Run from Hay Brook to the Bridge above Medway at State Route 157 in Maine offers a thrilling whitewater experience for paddlers, with challenging rapids and beautiful scenery along the way.
StateMaine
RiverPenobscot River, East Branch
Run length12.0 mi
ClassIII+
Elevation353 ft
Current flow--
Percent of normal81%
StreamgageUSGS 01029500
Latitude45.7674°
Longitude-68.5742°
Detailed forecast

Plan your run down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no. Watch the precipitation column on the meteogram; rain ahead of a run typically lifts flows 12-48 hours later depending on the basin.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks -- the upstream story that drives next week's flows.

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Regional flow

Regional streamflow levels

USGS streamgauges around Hay Brook To Bridge Above Medway At State Route 157 -- useful for spotting upstream pulses and gauging which tributary is contributing what.

Whitewater safety

Check the flow before you run
Use the linked-gauge card and Regional Flow panel above. Class ratings change with flow -- a Class III at low water can become Class IV+ at high water.
Know your skill ceiling
Pick runs comfortably below your ceiling. Cold-water and big-water runs raise the consequences of any mistake.
Wear the right gear
Helmet, PFD, drysuit / wetsuit when water is below 60°F. Throw bag, knife, and whistle on your person, not in the boat.
Scout, set safety, and run with a team
Scout new rapids on foot, set safety with throw bags above the consequence pool, and run with at least one other competent paddler.
Respect the river
Strainers, undercuts, low-head dams, and wood can kill at any class rating. When in doubt, portage.

Set push alerts in the Snoflo app

Save Hay Brook To Bridge Above Medway At State Route 157 as a favorite, set a discharge threshold (e.g. "alert me when flow hits 600 cfs"), and the iOS app pushes the moment the linked gauge crosses.

FAQ

About Hay Brook To Bridge Above Medway At State Route 157

What's the optimal flow for Hay Brook To Bridge Above Medway At State Route 157?

The optimal flow depends on the section and the craft. Check the Run Details panel for the linked gauge and current status.

How fresh is the cfs reading on this page?

The linked USGS streamgauge reports continuously (every 15 minutes); Snoflo refreshes throughout the day. Hover the streamflow sparkline to read individual datapoints.

What's the whitewater class?

See the Run Details panel for the class rating Snoflo tracks for this run. Class ratings change with flow -- a Class III at low water can become Class IV in high water.

Where do I put in / take out?

Tap Directions in the hero above to open driving directions to the put-in. For shuttle planning, check the Nearby Boat Launches panel and the river run operator's site.

Can I get alerts when flows hit the optimal range?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this run, set a discharge threshold, and you'll get a push the moment the gauge crosses.