Skip to main content
Oregon.gov Homepage

Reported Obstructions Alerts

Oregon's rivers are inherently dangerous, and some are prone to natural obstructions based on the topography and geology of the water basin.  The obstructions listed on this page will list rivers that consistently have log jams, strainers or other debris. 
 
During the winter and spring, debris flows and fallen trees are common.  By the summer, dropping water levels expose sunken logs and strainers, and the current often becomes stronger in the main channels on rivers and can take less maneuverable craft (inflatables) directly into the obstructions.  Take the time to plan ahead and scout the river before you put in.  Expect sudden drop-offs into deeper water along reservoir and lake banks.  Always wear your life jacket.  
 
Inflatable floating devices (i.e. air mattresses, pool toys and inner tubes) are not designed for rivers.  Please avoid using these devices for river recreation.
 


​None reported at this time.

​Two obstructions are between the State Rec Road and Forest Road (by 1000 trails).  The first GPS location is across the channel and has been there since 2014.  There is safe portage, but inexperienced boaters need to keep a sharp lookout and scout for a take out.  

The second obstruction is 1.3 miles downstream from the first obstruction.  Another tree has fallen and at lower water levels, portage will be difficult.  

At this time, these obstructions cannot be mitigated due to their remote locations. 

N 43 46.558' W 121 28.458' and N 43 46.986' W 121 28.082' 

​None reported at this time.

​None reported at this time.

​Several trees were obstructing safe navigation on the McKenzie River approximately 1/2 mile downstream of the Deer Creek Road Bridge. The US Forest Service signed nearby boat ramps. This obstruction will was mitigated as much as possible thanks to McKenzie River Rafters. Boaters are advised to put in downstream of this obstruction and not attempt to push over the tree.  Boats can get entrapped easily.

DeerCrkBeforeAfter.JPG
UPDATE on 6/9/18: Recent rainfall with high river flows swung the tree approximately 70 degrees to river right and the river left is now open. 

DeerCreek040918.JPG

​None reported at this time.

​None reported at this time.

​None reported at this time. 

​The river is being scouted for obstructions by the Clackamas County Marine Patrol. 

​None at this time.

​A fallen tree was reported on the Tualatin River, upstream from Fields Bridge in West Linn, behind 23044 SW Ulsky Rd.  This area is used primarily by paddlecraft and is passable.  The tree is also visible.  

The Tualatin Riverkeeper reported seven separate log jams to the Washington County Marine Patrol who forwarded the information to the Marine Board. 

The log jams are in the following locations along the Tualatin River:

Near 9545 SW River Rd -LAT/LONG: -122.940 / 45.470226

Near 5220 SW Rood Bridge Rd: -122.940954 / 45.483887

Near 3995 SW Rood Bridge Rd: -122.952185 / 45.489920

Near 29365 SW Hillecke Rd: -122.975837 / 45.481148

Near 4570 SW Minter Bridge Rd: -122.978874 / 45.484550

Near 29365 SW Hilleke Rd: -122.975837 / 45.481148

Near 4570 SW Minter Bridge Rd: -122.978874 / 45.484550

In all of these log jams, law enforcement report that boaters cannot safely navigate around the obstruction and portage may not be possible.  In many of these log jams, there's a large volume of trees. Boaters are urged to plan ahead and avoid these areas.  

​OSP reports exposed pipe, probably from an old dock, that's exposed during low water flows.  OSMB will work with law enforcement to sign nearby ramps.  The pipes appear to be 9' vertical and 3"+ in diameter near the waterline.   This area is popular with motorized boaters.  




​None reported at this time.

Hileman County Park Boat Ramp
Paddlers reported a strainer downstream of Hileman County Park/Boat Ramp below the confluence of the McKenzie River on the side channel entering the main channel.  A log is on river left but the current carries paddlers to the right, into a log jam.  This was a close call for the paddlers, who were pinned but able to climb out to safety.  The Lane County Marine Patrol unit is assessing the obstrution for potential mitigation and recommendations for boaters.  Less maneuverable boats and inexperienced paddlers are encouraged to stay in the main channel.  These paddlers advise wearing life jackets and are grateful they wore theirs.  We will post updated information when we hear back from the marine patrol. -44.141065, -123.122286

WillametteHilemanPk53017.jpg
Coast Fork Willamette River
A boater reported an area of concern to the Lane County Marine Patrol on December 20, 2016.  The marine patrol report that this is an earthen dam (low head) with judraulic effects during high water.  The normal chute for passage is difficult to see.  Boaters should be able to navigate over any area of the earthen dam or portage around.  Boaters are urged to pay close attention and oar-through the area to avoid getting trapped. 43.864827, -123.0209788 

CoastForkWillametteRiverEarthenDam122116.jpg
Brown's Landing Willamette River
Drift boaters who takeriver left may be drawn into the debris by the current. Take the river right channel, which is the first visible route when heading up or down stream. 44.1898627, -123.153338
BrownsLandingWillamette92016.jpg
Below Dexter Dam, Willamette River
A 1920's-era excavator fell into the river from an undercut banl below Dexter Dam.  The land is privately owned and there isn't safe portage.  A private contractor is required to remove the structure.  Signs are posted upstream to the dam alerting boaters of the structure.  Boaters are urged to avoid this area.  43.573803, -122.515746 

 

 

Your browser is out-of-date! It has known security flaws and may not display all features of this and other websites. Learn how

×