Listed on the National Register of Historic Places in 2001.
From the record
“River Mill Hydroelectric Project, also known as River Mill Dam and Station M, is a hydroelectric dam and powerhouse in Clackamas County, Oregon, United States. It is just north of Estacada, Oregon, on the Clackamas River at river mile 23.5.”
Wikipedia article River Mill Hydroelectric Project, CC BY-SA 4.0.
One of 93 National Register listings published here for Clackamas County · listed in 2001 · category: Structure.
National Register reference number.01000497- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Fires near this property
137 since 1992
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 137 fires within 5 miles of River Mill Hydroelectric Project
between 1992 and 2020, burning about 1,552 acres in total. 2 started naturally. 4 were recorded as arson.
Distance is straight-line from the map coordinates, so a fire counted
here may appear on a neighbouring settlement's page as well.
Reported cause
Fires
Debris and open burning
70
Missing data/not specified/undetermined
16
Recreation and ceremony
14
Equipment and vehicle use
11
Smoking
6
Power generation/transmission/distribution
6
Arson/incendiarism
4
Fireworks
4
Other causes
3
Natural
2
Misuse of fire by a minor
1
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
33 workings within 5 miles of River Mill Hydroelectric Project: 26 past producers, 4 producers, 1 occurrence, 1 prospect.
4 still produce. What was taken out: Sand and Gravel, Construction, Stone, Crushed/Broken, Stone, Clay. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Estacada, the town this property stands in, in 16 storm reports between 2005 and 2021: 12 flood, 3 heavy rain, 1 thunderstorm wind.
The reports record 1 death. Each account below is quoted exactly as the forecast office
filed it, from the NOAA Storm Events Database, and each date
opens the federal record of that event.
Heavy rain combined with snowmelt runoff caused the Clackamas river to overflow its banks and floods areas near Estacada. Flood waters submerged 11 pumps in the waste water treatment plant in Estacada. The water water treatment plant was out of commission for 2 weeks. Significant flood damage also occurred to the Estacada library.
Flooding of Johnson Creek and of the Clackamas River resulted in significant damage to businesses, homes, and vehicles in Milwuakie, Clackamas, Boring, Lake Oswego, and Happy Valley. Around 50 homes were evacuated and eight people were rescued. High water and debris flow closed several roads in the area.
NWS Storm Survey visited a site with extensive damage most likely the result straight-line thunderstorm winds. Numerous large tree branches ranging in diameter of 10 to 16 inches snapped off of several trees. The wind speed is estimated from damage in a nearby county under similar conditions.
The Clackamas River near Estacada (ESTO3) rose above flood stage at 0445PST, crested at 21.3 feet, then fell below flood stage at 1345PST. Flood stage is 20.0 feet.
The Clackamas River near Estacada reached flood stage of 20 feet at 830 AM PST on December 21st. The river crested at 20.27 feet at 1030 AM on December 21st, before dropping below flood stage at 2 pm.
The Oregon Department of Transportation reported land and mud slides near Estacada, Oregon after 2 inches of rain fell over the past week. These slides closed Higway 226 near milepost 36 for several of days.
Heavy rain caused the Clackamas River at Estacada to overflow its banks and flood low lying areas. The Clackamas River crested at 20.6 feet on March 30th at 5 pm PST, 0.6 feet above flood stage.
Heavy rain combined with snowmelt runoff resulting in the flooding of the Clackamas River. The Clackamas River at Estacada crested at 24.0 feet on January 16th at 22:00 PST.
No historic map-sheet match is published
for this property yet. That does not mean no map exists. This record needs
a coordinate-quality review before it can be joined to a sheet boundary.
Browse the county's mapped places while that work is
pending.
Listed places nearby
3 within 8 miles
Other National Register properties close
enough to walk or drive between, ordered by distance from this one. Both
positions come from the same geocoding pass that matched these properties
to their map sheets.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.
Block
