See all 2 routes on Smith Creek
Idaho | North Idaho / Boundary County / Selkirk Mountains
Smith Creek
Upper Smith Creek
Route planning details, access notes, and local verification guidance.
Route location
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Need to know
Why this call
Safety
Route safety
Advanced routeThis route has hazards that can create serious consequences if missed or misjudged. Paddle only with appropriate skill, equipment, and current local information.
Safety details
American Whitewater rates Upper Smith III-IV+(V) and describes a slow start that builds into clean bedrock rapids and small cascades. Use a proven creek boat, helmet, PFD, throw bags, and a team capable of self-rescue in cold water.
- Call the Smith Creek diversion at (208) 267-2744 and inspect the local staff gauge below the diversion. The Boundary Creek online gauge is one drainage north and cannot replace the local release/stage check.
- The reach has a major drop near the lower half, an undercut left bank, and changing hydro operations. Confirm Forest Service road access, bridge parking, private-bank boundaries, and wood immediately before launch.
Conditions
Gauge history and hourly forecast
Use the gauge context and hourly forecast to verify local conditions before launching.
Gauge detail
Gauge history & hourly forecastDetailed view
Gauge note
Proxy gauge: Boundary Creek near Porthill, ID (regional proxy for Upper Smith). Regional signal only; verify local water.
Gauge context
This route uses Boundary Creek near Porthill, ID (regional proxy for Upper Smith) as a proxy gauge. It is a regional signal, not a measurement of this reach. Verify local water and hazards before launching.
Gauge
Recent trend
Checking preferred range.
Checking trend.
Gauge source
--Checking timestampMN DNR provides the current paddling level here, but not chart-ready recent samples.
Weather
Hourly forecast
Checking weather.
Loading today's forecast.
Next 8 hours
Short-route forecast
Checking the next several hours.
Route overview
Quick facts and what's next
Distance, difficulty, shuttle basics, and the near-term outlook before you commit to the drive.
Quick facts
Plan ahead
Upcoming outlook
These are early planning reads. Re-check live conditions before you commit to the drive.
Waiting on forecast.
Waiting on forecast.
Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
A 3.6-mile Class III-IV+(V) Upper Smith Creek reach from the diversion-area access to the lower bridge, with clean bedrock rapids, small cascades, and a local staff-gauge cue.
Prepare this trip
Take the plan with you
Download the canonical route, add a calendar hold, or send a simple float plan to your group.
Put-in
Upper Smith Creek Diversion AccessUse only the named public launch or landing; a nearby bank, bridge shoulder, fishing easement, or private campground is not substitute access.
Take-out
Upper Smith Creek Lower BridgeConfirm current closures, fire restrictions, seasonal gates, parking capacity, fees, launch condition, and Idaho invasive-species requirements before travel.
Plan this segment
Access caveats and watch for
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
- 6.4-ft local staff-gauge cue
- hydro diversion changes
- large lower-half drop
- undercut left bank
- cold water
- bridge parking and landing
Route gallery
See this route on the water
Photos help show what the access looks like and what the route actually feels like on the water.

Score & sources
Data and sources
See the gauge, weather, and source notes behind today's call.
Why this scoreToday's evidence strength is checking
Evidence strength mostly comes down to three things: how direct the active gauge is, how clear the range is, and how fresh the data is.
- Checking evidence-strength notes.
- Checking evidence cautions.
Data behind the scoreGauge, thresholds, and timing
These are the live readings and threshold notes behind today's score.
| Gauge site | Boundary Creek near Porthill, ID (regional proxy for Upper Smith) |
| 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 |
| Ideal range | Needs paddler reports |
| Known low-water floor | 75 cfs |
| High threshold | Not calibrated yet |
| Evidence strength behind the range | Official and local sources |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | Upper Smith local staff gauge: 6.4 ft is low/friendly and correlated to about 75-80 cfs below diversion; 8.1 ft is moderate |
| 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 corridorUpper Smith Creek; About 3.6 river miles
American Whitewater Upper Smith Creek reach record identifies the endpoint chain, river miles, or managed float corridor.
- Public access controlUpper Smith Creek Diversion Access to Upper Smith Creek Lower Bridge
Coordinates represent named public ramps, bank launches, park landings, or an explicitly described staging point.
- Defensible proxy gaugeUSGS 12321500 - Boundary Creek near Porthill, ID (regional proxy for Upper Smith)
Gauge is downstream on the same river system and must not be treated as a local measurement.
- Threshold postureNumeric cue retained for planning
The route remains planning-only; no live go/no-go score is asserted.
- Safety and land managementCurrent manager notices override this record
American Whitewater rates Upper Smith III-IV+(V) and describes a slow start that builds into clean bedrock rapids and small cascades. Use a proven creek boat, helmet, PFD, throw bags, and a team capable of self-rescue in cold water. Call the Smith Creek diversion at (208) 267-2744 and inspect the local staff gauge below the diversion. The Boundary Creek online gauge is one drainage north and cannot replace the local release/stage check. The reach has a major drop near the lower half, an undercut left bank, and changing hydro operations. Confirm Forest Service road access, bridge parking, private-bank boundaries, and wood immediately before launch.
- Camping classificationnearby_basecamp
No developed Smith Creek endpoint campground is assumed. Use a separately verified legal Kaniksu/Boundary County basecamp and follow fire, wildlife, and seasonal closure rules.
- Image decisionNorth Idaho Panhandle river context photograph; not an Upper Smith endpoint image
Approved route-area or same-river context; it does not depict every endpoint or current conditions.
- 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 Upper Smith Creek reach record
- Official access/map control
- USGS 12321500 monitoring location
- USGS 12321500 current conditions
- Additional threshold support
- American Whitewater Upper Smith Creek put-in access
- American Whitewater Upper Smith Creek take-out access
- American Whitewater Smith Creek flow-management project
- USGS Boundary Creek regional proxy gauge
- Idaho Fish and Game Smith Creek water record
- Idaho Panhandle Smith Ridge trail/road context
- North Idaho Panhandle river context photograph; not an Upper Smith endpoint image
- 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.
More level reports needed
Only a low-water floor is known.
We can tell when this route is likely too low, but we do not yet have enough reports to define a best range. If you paddled it recently, send a condition report with how the level felt.
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More routes to check next
Compare another stretch on this river, or jump to nearby options before you pick a plan.
Quick answers
Smith Creek paddling FAQ
What water level is good for paddling Smith Creek?
Paddle Today watches Boundary Creek near Porthill, ID (regional proxy for Upper Smith) and uses 75 cfs as the conservative low-water floor for this route. The ideal range still needs more paddler reports.
Where does this Smith Creek route start and end?
This route starts at Upper Smith Creek Diversion Access and ends at Upper Smith Creek Lower Bridge, about About 3.6 river miles on the water.
Is this Smith Creek route good for beginners?
This is listed as a hard route. Treat the live score as a planning aid, then confirm conditions, hazards, access, and group skill before launching.
Flag a change
See something outdated?
Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.
