Lake Carnegie - Princeton

Lake Carnegie
( 40.35303, -74.63730 )

  1. D-R Canal - Kingston (N) ( 40.37489, -74.61854 )
  2. D-R Canal - Kingston (S) ( 40.37326, -74.61861 )
  3. D-R Canal - Plainsboro (E) ( 40.34321, -74.62964 )
  4. D-R Canal - Plainsboro (W) ( 40.34190, -74.63758 )
  5. D-R Canal - Princeton (N) ( 40.33879, -74.64715 )
  6. D-R Canal - Princeton (S) ( 40.33177, -74.65282 )
  7. Lake Carnegie - Plainsboro ( 40.34362, -74.62973 )
  8. Lake Carnegie - Princeton ( 40.36681, -74.62597 )
  9. Millstone River - Kingston ( 40.37419, -74.61962 )
  10. Millstone River - Plainsboro (N) ( 40.34262, -74.62981 )
  11. Millstone River - Plainsboro (S) ( 40.33874, -74.62880 )
  12. Stony Brook - Princeton ( 40.33219, -74.65340 )

Lake Carnegie is a reservoir that straddles the borders of the towns of Princeton, West Windsor, Plainsboro and South Brunswick in Mercer and Middlesex counties in central New Jersey. The lake was created by construction of a dam along the Millstone River, though the lower portion of the lake actually follows the valley of its largest tributary, the Stony Brook, while the Millstone River crossed under the D&R Canal to the south. The lake is about three miles long, but only about 800 feet wide.

Noted businessman and philanthropist Andrew Carnegie donated money for the construction of the lake, which was donated to Princeton University. Carnegie attended the official opening ceremony on December 5, 1906. In 1990, the Lake Carnegie Historic District was listed on the National Register of Historic Places. Lake Carnegie, which is privately owned, is used by Princeton University's rowing team. Needless to say, stay out of their way! (The Olympic team uses Lake Mercer.)

Looking north over the dam at the grist mill

The north end of the lake at Kingston - three ways to go
( 40.37412, -74.61905 )

Fish species include largemouth bass, carp, pickerel, crappie, channel catfish and occasionally a few rainbow and brown trout that make their way into Carnegie Lake from Stony Brook.

Years of pollution have led to a dangerous decrease in the lake's safety levels. The sources of this non-point source pollution are varied - litter, chemicals (fertilizers and pesticides), automotive waste (oil and gas), and goose droppings have all contributed to the decline in water quality. Unsafe levels of mercury in the lake have led to an advisory on fish consumption. Efforts to improve the water quality of Carnegie Lake are ongoing.

The Delaware and Raritan Canal and its associated tow path are situated along the eastern shore of the lake, just minutes away. The canal is about 2 feet higher than the lake. The closest access points are also marked on the map. Lake Carnegie drains north into the Millstone River.

Looking north over the canal from the aqueduct at Plainsboro
Looking south from the aqueduct at the Millstone River

D-R Canal - Plainsboro (E)
( 40.34321, -74.62964 )

Bridge near Princeton


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Lake Manalapan - Jamesburg
( 40.34349, -74.43143 )

  1. Brainerd Lake - Cranbury ( 40.31113, -74.51178 )
  2. Dallenbach Pond ( 40.41254, -74.44296 )
  3. Davidson's Mill Pond - East Brunswick ( 40.41117, -74.49789 )
  4. Farrington Lake - East Brunswick (C) ( 40.42465, -74.47680 )
  5. Farrington Lake - East Brunswick (N) ( 40.43900, -74.46646 )
  6. Farrington Lake - East Brunswick (S) ( 40.42201, -74.48242 )
  7. Helmetta Pond ( 40.37817, -74.42657 )
  8. Lake Manalapan - Jamesburg ( 40.34525, -74.43662 )
  9. Lake Weamaconk - Englishtown ( 40.29140, -74.35704 )
  10. Millstone River - Cranbury (E) ( 40.29359, -74.52675 )
  11. Rocky Brook - Hightstown ( 40.27108, -74.52353 )
  12. South River - Old Bridge ( 40.41228, -74.36362 )

This is about the smallest body of water I would consider - more of a pond than a lake. But it is a nice place. Access could not be easier, the parking lot goes right down to the water. If you live nearby, it is a good place for a quick 'dip'. To go a little farther, you can hop over the railroad tracks and get into the far section and a little ways up the byzantine creek that fills the lake.

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