See all 8 routes on South Fork Snake River
Idaho | Eastern Idaho / Heise
South Fork Snake RiverByington to Heise Bridge
A short 2.8-mile lower-canyon float from the developed Byington ramp to Heise Bridge.
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Route location
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Need to know
Why this call
Route overview
Trip details
Access rules, camping, seasonal conditions and trip length.
Distance, difficulty, rules and camping
Plan ahead
Tomorrow and the weekend
Forecasts can change. Check current conditions again before leaving.
Waiting on forecast.
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Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
A short 2.8-mile lower-canyon float from the developed Byington ramp to Heise Bridge.
Access map
Put-in
Byington Boat AccessUse only the named public launch or landing; a nearby bank, bridge shoulder, fishing easement, or private campground is not substitute access.
Take-out
Heise Bridge Boat AccessConfirm current closures, fire restrictions, seasonal gates, parking capacity, fees, launch condition, and Idaho invasive-species requirements before travel.
Road shuttle
Access notes and hazards
Access caveats
- Use only the named public launch or landing; a nearby bank, bridge shoulder, fishing easement, or private campground is not substitute access.
- Confirm current closures, fire restrictions, seasonal gates, parking capacity, fees, launch condition, and Idaho invasive-species requirements before travel.
- Private banks are common. Do not land, scout, portage, or camp outside a signed public site or manager-designated corridor.
Watch for
- Dry Beds Canal diversion
- current fire-area land status
- swift current at Heise
Plan this paddle
Choose your trip times
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Conditions
Water levels, gauge history, and hourly forecast
Check how the river is changing and what weather to expect.
USGS measurements
More about this gauge
These measurements come from the gauge station. Water depth and current can differ along your trip.
River camera · USGS
View at the gauge
Snake River near Irwin, ID. This view may be outside your paddling reach. Images are periodic and do not establish safe conditions.
Gauge detail
Water-level history and forecastDetailed view
Gauge
Recent trend
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Gauge source
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Hourly forecast
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Next 8 hours
Short-route forecast
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Route gallery
Photos
Check each caption: some photos show the surrounding area rather than this exact trip.
Score & sources
Why this score
See the gauge, weather, and source notes behind today’s call.
Why this scoreData reliability: checking
This rating reflects whether the gauge measures this part of the river, whether published water-level guidance is available, and how recently the data was updated.
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- Checking evidence cautions.
Data behind the scoreWater levels, published guidance and update times
These readings and published water-level limits help explain today’s score.
| Gauge site | Snake River near Irwin, ID |
| Discharge | Checking |
| Gauge height | Checking |
| 24h trend | Checking |
| 24h change | Checking |
| Current band | Checking |
| Rain last 24h | Checking |
| Rain last 72h | Checking |
| Air temp | Checking |
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| Wind | Checking |
| Gusts | Checking |
| Rain timing | Checking |
| Preferred range | 6,000 cfs to 8,000 cfs |
| Low threshold | 1,500 cfs |
| High threshold | 15,000 cfs |
| Evidence strength behind the range | Official and local sources |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | RiverBrain Palisades Dam-Lorenzo 1,500-15,000 cfs band; 6,000-8,000 cfs ideal band derived around the published 7,000 cfs average |
| Gauge source | Checking |
| Weather source | Checking |
| Rainfall source | Checking |
NotesWhat to know before you go
These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.
- Official route corridorByington to Heise Bridge; 2.8 river miles
BLM South Fork Snake River boating guide identifies the endpoint chain, river miles, or managed float corridor.
- Public access controlByington Boat Access to Heise Bridge Boat Access
Coordinates represent named public ramps, bank launches, park landings, or an explicitly described staging point.
- Direct live gaugeUSGS 13032500 - Snake River near Irwin, ID
Gauge is on the named waterbody and supplies context only.
- Threshold postureGauge-linked range used for live scoring
The cited route guidance is tied to this gauge and reach; hazards, closures, weather, and local inspection still override the score.
- Safety and land managementCurrent manager notices override this record
Cold, swift water, standing waves, whirlpools, wood, bridge piers, gravel bars, and diversions require active boat handling and a worn PFD. Palisades releases can change current and channel choice; use only designated launches and check the current BLM advisories before departure. BLM directs boaters to the north bank to avoid the Dry Beds Canal headgate, which captures nearly half the river.
- Camping classificationnearby_basecamp
Day trip; no camping at Byington. Use a currently open designated campground outside the route corridor.
- Photo contextSnake River Idaho regional context photograph
The gallery photo is visual context. It may show another part of the same river or watershed and does not show current conditions at every access point.
- Overlap decisionRetained as a distinct access-to-access itinerary
Adjacent cards use different public endpoints and provide a different trip length, hazard set, skill tier, or operating boundary.
Verify it yourselfCheck the source links
Use these links to double-check the gauge, route details, and access notes before you head out.
- BLM South Fork Snake River boating guide
- Official access/map control
- USGS 13032500 monitoring location
- USGS 13032500 current conditions
- RiverBrain Palisades Dam-Lorenzo 1,500-15,000 cfs band; 6,000-8,000 cfs ideal band derived around the published 7,000 cfs average
- Snake River Idaho regional context photograph
- Idaho boating and invasive-species requirements
Paddler reports
Recent notes from paddlers
A few quick notes from people who were on this route recently.
Reports
Paddler reports
See recent photos and notes from people on the route.
Share your trip
Keep exploring
More routes to check next
Compare another stretch on this river, or explore different rivers within 75 straight-line miles.
Quick answers
South Fork Snake River paddling FAQ
What water level is best for the Byington to Heise Bridge route on the South Fork Snake River?
Paddle Today watches Snake River near Irwin, ID and treats 6,000 cfs to 8,000 cfs as the target band for this route, with weather and recent trend included in the final score.
Where does the Byington to Heise Bridge route on the South Fork Snake River start and end?
This route starts at Byington Boat Access and ends at Heise Bridge Boat Access, 2.8 river miles on the water.
Is the Byington to Heise Bridge route on the South Fork Snake River suitable for beginners?
This is listed as a moderate route. Expect more planning than an easy float, and use the live score, route notes, and source links before committing.
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