Timothy Lake Dam Quick Facts
Timothy Lake Dam Map
Timothy Lake Dam Information
Timothy Lake Dam is an earthen embankment dam located about 44 miles from Estacada, Or, Clackamas, Oregon.
The dam, which is on the Oak Grove River, was primarily built for Hydroelectric purposes, but also serves for Recreation benefits.
The dam was designed by and commissioned in 1956 and is currently owned by Portland General Electric Company.
Timothy Lake Dam Structure
The Timothy Lake Dam is approximately 740 feet (226 m) long, 100 feet (30 m) high and has a structural volume of cubic yards (0 cubic metres).
Timothy Lake Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 66,000 acre-ft (81,410 Ml) and maximum capacity of 69,000 acre-ft (85,110 Ml).
The surface area of the reservoir is 1,430 acres (579 ha) and the total catchment area is 54 square miles (140 square kilometres).
Timothy Lake Dam Spillway
The dam spillway has a maximum discharge capacity of 16000 cubic feet per second (453 cubic metres per second).
Timothy Lake Dam Compared to Five Famous American Dams
Timothy Lake Dam Weather
Current Conditions at Timothy Lake Dam
| Parameter | Value |
|---|---|
| Current Time | 18:18 |
| Sunrise | 07:37 |
| Sunset | 16:59 |
| Temperature (°F) | 27 |
| Feels Like (°F) | 23 |
| Cloud Coverage (%) | 32 |
| Pressure (inHg) | 1037 |
| Humidity (%) | 78 |
| Wind Speed (mph) | 3 |
| Rain (mm) | 0 |
7-Day Forecast for Timothy Lake Dam
| Day | Min Temp (°F) | Max Temp (°F) | Feels Like (°F) | Pressure (inHg) | Humidity (%) | Wind Speed (mph) | Wind Gust (mph) | Wind Dir | Precip Prob (%) | Precip Volume (mm) | Weather |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | 25 | 40 | 33 | 1033 | 36 | 7 | 19 | WNW | 0 | - |  |
| Wed | 26 | 46 | 45 | 1034 | 24 | 5 | 5 | ESE | 0 | - |  |
| Thu | 25 | 46 | 44 | 1028 | 35 | 6 | 10 | WNW | 0 | - | |
| Fri | 22 | 34 | 31 | 1025 | 72 | 7 | 17 | WNW | 97 | - |  |
| Sat | 22 | 32 | 24 | 1027 | 39 | 10 | 24 | E | 0 | - |  |
| Sun | 20 | 37 | 33 | 1029 | 27 | 6 | 10 | ESE | 0 | - | |
| Mon | 25 | 42 | 38 | 1027 | 33 | 6 | 8 | ESE | 0 | - | |
| Tue | 27 | 50 | 50 | 1023 | 33 | 6 | 7 | ESE | 0 | - | |
Timothy Lake Dam Frequently Asked Questions
Timothy Lake Dam is in Oregon.
Timothy Lake Dam is in Clackamas County.
Timothy Lake Dam is 100 feet high.
Timothy Lake Dam is 740 feet long.
More Dams in Clackamas County:
Development No. 2 DamNorth Fork Dam
Oswego Lake Dam
Timothy Lake Dam
Willamette Falls Dam
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Condition Assessment Classification
Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor
A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner’s property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Source: National Inventory of Dams