Idaho | Southwest Idaho / Boise Mountains
South Fork Boise RiverAnderson Ranch Dam to Danskin Bridge
A remote 10.9-mile Class I-II(III) tailwater run below Anderson Ranch Dam to the Danskin Bridge access, with cold water and changing dam releases.
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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.
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Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
A remote 10.9-mile Class I-II(III) tailwater run below Anderson Ranch Dam to the Danskin Bridge access, with cold water and changing dam releases.
Access map
Put-in
Anderson Ranch Dam Tailwaters AccessUse only the named public launch or landing; a nearby bank, bridge shoulder, fishing easement, or private campground is not substitute access.
Take-out
Danskin Floatboat 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
- dam-release changes
- cold water and limited escape shoreline
- wood and Class III features
- remote shuttle and no cell coverage
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
South Fork Boise River at Anderson Ranch Dam, 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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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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Data behind the scoreWater levels, published guidance and update times
These readings and published water-level limits help explain today’s score.
| Gauge site | South Fork Boise River at Anderson Ranch Dam, 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 |
| Water temp | Checking |
| Wind | Checking |
| Gusts | Checking |
| Rain timing | Checking |
| Preferred range | 600 cfs to 2,000 cfs |
| Low threshold | 600 cfs |
| High threshold | 2,000 cfs |
| Evidence strength behind the range | Official and local sources |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | Kayak Idaho South Fork upper-section planning band: 600-2,000 cfs; AW documents higher-flow hazard context |
| 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 corridorAnderson Ranch Dam to Danskin Bridge; About 10.9 river miles
American Whitewater South Fork Boise Upper Run reach record identifies the endpoint chain, river miles, or managed float corridor.
- Public access controlAnderson Ranch Dam Tailwaters Access to Danskin Floatboat Access
Coordinates represent named public ramps, bank launches, park landings, or an explicitly described staging point.
- Direct live gaugeUSGS 13190500 - South Fork Boise River at Anderson Ranch Dam, 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
The canyon has limited shoreline escape and very cold tailwater. Wear a PFD and cold-water protection, carry rescue and repair gear, and use a crew able to manage Class III features at the selected release. Anderson Ranch releases can change quickly. Confirm the current release schedule, road conditions, and launch status with the managing agencies before entering below the dam. The 600-2,000 cfs band is a community planning cue on the direct dam gauge. American Whitewater reports a serious cold-water incident near 2,500 cfs; release notices, local inspection, and crew skill override any published band or score.
- Camping classificationnearby_basecamp
Use a lawful Boise National Forest or Anderson Ranch Reservoir basecamp. No on-route overnight camping or informal shoreline access is assumed.
- Photo contextSouth Fork Boise watershed 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.
- American Whitewater South Fork Boise Upper Run reach record
- Official access/map control
- USGS 13190500 monitoring location
- USGS 13190500 current conditions
- Kayak Idaho South Fork upper-section planning band: 600-2,000 cfs; AW documents higher-flow hazard context
- Additional threshold support
- USBR Anderson Ranch tailwater access and formal launches
- Idaho Fish and Game South Fork Boise boating and gauge context
- USGS Anderson Ranch Dam live gauge
- Wilderness Portal upper South Fork Boise route map and launch coordinate
- South Fork Boise watershed 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
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Quick answers
South Fork Boise River paddling FAQ
What water level is best for the Anderson Ranch Dam to Danskin Bridge route on the South Fork Boise River?
Paddle Today watches South Fork Boise River at Anderson Ranch Dam, ID and treats 600 cfs to 2,000 cfs as the target band for this route, with weather and recent trend included in the final score.
Where does the Anderson Ranch Dam to Danskin Bridge route on the South Fork Boise River start and end?
This route starts at Anderson Ranch Dam Tailwaters Access and ends at Danskin Floatboat Access, about 10.9 river miles on the water.
Is the Anderson Ranch Dam to Danskin Bridge route on the South Fork Boise 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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