Merrill Creek Reservoir

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Merrill Creek Reservoir
Merrill Creek Reservoir at dusk (319179546).jpg
Location Harmony Township, Warren County, New Jersey
Coordinates 40°44′10″N 75°6′5″W / 40.73611°N 75.10139°W / 40.73611; -75.10139Coordinates: 40°44′10″N 75°6′5″W / 40.73611°N 75.10139°W / 40.73611; -75.10139
Lake type reservoir
Basin countries United States
Surface area 650 acres (260 ha)
Average depth 235 ft (72 m)
Max. depth 235 ft (72 m)

Located in central Warren County, New Jersey, Merrill Creek Reservoir is a 650-acre (2.6 km²) artificial lake that is surrounded by 290 acres (1.2 km²) of protected woodland and fields. These lands are themselves part of 2,000 acres (8.1 km2) of open spaces.

Merrill Creek is connected to the Delaware River, about three miles away, by an underground tunnel. The earthen Merrill Creek Dam (National ID # NJ00864), with a height of 280 feet and a length at its crest of 1140 feet, was built in 1988[1] by a consortium of seven electric utilities, under mandate of the Delaware River Basin Commission. It replaces the river water lost through evaporation in the cooling of 14 power plants. The owners, known as the Merrill Creek Owners Group, are Public Service Electric and Gas, which built the reservoir for the group; Jersey Central Power and Light, Atlantic City Electric, Metropolitan Edison, Philadelphia Electric, Pennsylvania Power and Light, and Delmarva Power and Light.[2]

Merrill Creek Dam and Reservoir from the air.

The reservoir draws water from the Delaware in springtime, when river flow normally is abundant, and restores it in the summer, when the flow is usually meager and - compounding the problem - demand for electricity for air-conditioning is high. In addition, by maintaining an ample Delaware River flow, seawater intrusion into the aquifers that provide drinking water to many South Jersey communities, including Camden, will be minimized.[3] Construction cost $217 million and was one of the largest construction projects in the United States in 1986-87. The entire site was cleared of dense forest by huge tree-eating machines, and construction crews worked two 12-hour shifts to build a large earth dam and two dikes.[4]

Fishing at Merrill Creek Reservoir

Launching facilities are provided for recreational boating, but no gasoline motors are allowed. The reservoir and surrounding parkland offer visitors an opportunity to engage in outdoor activity. Some of the abundant wildlife around the lake includes bald eagles, crows, white-tailed deer, turkey, and other various migratory birds. The reservoir is best known for its brown trout fishing. Other fish in the reservoir include walleye, yellow perch, small and largemouth bass, chain pickerel, crappie, catfish, sunfish, carp, rainbow trout, brook trout and lake trout.[5]

The lake is about two hundred thirty-five feet deep, making it the deepest man-made lake in New Jersey. The depth allows for lake trout to exist and other trout to exist year round. This is one of two lakes in New Jersey where lake trout exist. The other is Round Valley Reservoir in Hunterdon County.

The lake's visitor center features natural history and cultural exhibits and offers environmental education programs for all age groups ranging from pre-K through adults.


  1. ^ "Dam Name : Merrill Creek Main Dam". Retrieved 2015-09-04. 
  2. ^ Ginzburg, Ralph (1988-06-12). "Utility-Built Lake Begins Filling Up". Merrill Creek Reservoir (Harmony Township, Nj); New Jersey: Retrieved 2015-08-31. 
  3. ^ Ginzburg, Ralph (1988-06-12). "Utility-Built Lake Begins Filling Up". Merrill Creek Reservoir (Harmony Township, Nj); New Jersey: Retrieved 2015-08-31. 
  4. ^ "Merrill Creek Reservoir, New Jersey, USA". Lakelubbers. Retrieved 2015-08-31. 
  5. ^ "Merrill Creek Reservoir Details". NJ Fish Finder. Retrieved 2015-08-31. 

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