Lake Ontelaunee Dam

Lake Ontelaunee Dam Quick Facts

Location: Berks, Pennsylvania
Coordinates: 40.4475, -75.9297222
River: Maiden Creek River
Primary Purpose: Water Supply
Type: Earth
Commissioned: 1935
Dam Height: 52 ft (16 m)
Dam Length: 2,834 ft (864 m)
Dam Capacity: 22,788 acre-ft (28,109 Ml)
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Lake Ontelaunee Dam Map

Lake Ontelaunee Dam Information

Lake Ontelaunee Dam is an earthen embankment dam located in Berks County, Pennsylvania.

The dam, which is on the Maiden Creek River, was primarily built for Water Supply purposes, but also serves for benefits.

The dam was designed by and commissioned in 1935 and is currently owned by READING AREA WATER AUTHORITY.

Lake Ontelaunee Dam Structure

The Lake Ontelaunee Dam is approximately 2,834 feet (864 m) long, 52 feet (16 m) high and has a structural volume of cubic yards (0 cubic metres).

Lake Ontelaunee Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 11,900 acre-ft (14,678 Ml) and maximum capacity of 22,788 acre-ft (28,109 Ml).

The surface area of the reservoir is 1,037 acres (420 ha) and the total catchment area is 192 square miles (497 square kilometres).

Lake Ontelaunee Dam Spillway

According to the latest available data, the Lake Ontelaunee Dam does not have any spillways.

Lake Ontelaunee Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Lake Ontelaunee Dam
Berks, Pennsylvania
Height (ft)
52
Length (Ft)
2,834
Storage Volume (acre-ft)
22,788
Drainage Area (sq miles)
192
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

Lake Ontelaunee Dam Weather

Current Conditions at Lake Ontelaunee Dam

Parameter Value
Current Time 01:12
Sunrise 07:16
Sunset 18:21
Temperature (°F) 40
Feels Like (°F) 37
Cloud Coverage (%) 0
Pressure (inHg) 1016
Humidity (%) 78
Wind Speed (mph) 6
Rain (mm) 0

7-Day Forecast for Lake Ontelaunee 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 35 53 49 1020 43 12 20 NNW 0 - few clouds
Thu 33 60 52 1025 36 11 15 NNW 0 - clear sky
Fri 37 68 59 1032 31 9 11 N 0 - clear sky
Sat 43 70 59 1036 43 4 3 NNE 0 - clear sky
Sun 45 73 61 1030 34 4 6 NNW 0 - scattered clouds
Mon 46 74 63 1028 35 4 4 S 0 - clear sky
Tue 47 72 62 1024 44 7 12 SSW 0 - clear sky
Wed 50 75 67 1019 47 13 19 WNW 0 - clear sky

Lake Ontelaunee Dam Frequently Asked Questions

In which state is the Lake Ontelaunee Dam?

Lake Ontelaunee Dam is in Pennsylvania.

In which county is the Lake Ontelaunee Dam?

Lake Ontelaunee Dam is in Berks County.

How high is the Lake Ontelaunee Dam?

Lake Ontelaunee Dam is 52 feet high.

How long is the Lake Ontelaunee Dam?

Lake Ontelaunee Dam is 2,834 feet long.

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More Dams in Berks County:

Cleveland Brook Reservoir Dam
Lake Ontelaunee Dam
Onota Lake Dam
Otis Reservoir Dam
Stockbridge Bowl Dam
Washington Mountain Lake Dam
Woods Pond Dam

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

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