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Holland Brook
Holland Brook2.JPG
Holland Brook in Readington Township
Other name(s) Holland's Brook, Amanmechunk
Country United States
State New Jersey
Region Raritan Valley
City Readington, Branchburg
Physical characteristics
Main source Cushetunk Mountain
Readington, Raritan Valley, New Jersey, United States
372 ft (113 m)
40°35′19.2″N 74°49′3.64″W / 40.588667°N 74.8176778°W / 40.588667; -74.8176778
River mouth South Branch Raritan River
Branchburg, Raritan Valley, New Jersey, United States
64 ft (20 m)
40°32′56.17″N 74°41′39.54″W / 40.5489361°N 74.6943167°W / 40.5489361; -74.6943167
Length 7 mi (11 km)
Basin features
Tributaries
MouthofHollandBrook
Mouth of Holland Brook near South Branch

Holland Brook is a small river, also called a tributary, in New Jersey, United States. It flows into the South Branch Raritan River. You can find it in Hunterdon and Somerset Counties.

The brook travels through two towns: Readington and Branchburg. It is the very last tributary that joins the South Branch Raritan River before it meets the North Branch Raritan River.

Holland Brook is more than seven miles (about 11 kilometers) long. It starts near Cushetunk Mountain. This mountain is made of igneous rock, which is rock formed from cooled lava. The brook then flows until it meets the South Branch Raritan River in Branchburg. Along most of its path, the brook is about ten to twenty feet (3 to 6 meters) wide. It drops over three hundred feet (91 meters) in height from where it starts to where it ends.

The brook got its name, Holland's Brook, from Thomas Holland. He was an early landowner in the area, even though he never lived there. The native Lenape people had their own name for the brook: Amanmechunk. In their Unami dialect, this word meant "large creek."

Exploring the Holland Brook Greenway

Holland Brook from the Holland Brook Greenway
From the greenway at Holland Brook Preserve in Readington, New Jersey

The Holland Brook Greenway is a planned trail project. It aims to create a five-mile (8-kilometer) path along the brook in Readington and Branchburg. If completed, this trail could connect to other future trails. For example, it might link to a trail along the North Branch Raritan River. It could also connect to the Middle School in Readington and the Lachenmayr Trail.

Branchburg's part of the Greenway would be part of a bigger plan. This plan includes a 16-mile (26-kilometer) trail that crosses the whole township. The Holland Brook Greenway could eventually give people access to the Raritan River Greenway and even the East Coast Greenway.

Building the Trail

To make the trail happen, Branchburg would need to get access to four more properties. This would allow public access from the Readington border to a park along the North Branch Raritan River. A trail along this path would need to cross a few roads. These include South Branch Road, Evergreen Drive, and Old York Road.

A safe crossing over US-202 would also need to be built for bikes and walkers. Simpler crossings with crosswalks might work for South Branch Road and Evergreen Drive. The trail could even go under the bridge at Old York Road. However, parts of the trail in Readington still have gaps. No official sections of the Greenway have been built yet in either town.

Smaller Streams Joining Holland Brook

Holland Brook Headwaters
The headwaters of Holland Brook road at the base of Cushetunk Mountain

Holland Brook has many smaller streams, called tributaries, that flow into it. The NJDEP lists ten unnamed tributaries in Branchburg and Readington. These streams are mostly fresh water and are not suitable for trout.

Two of the named tributaries are:

Where Holland Brook Crosses Roads

Holland Brook flows under many roads as it makes its way to the Raritan River.

In Readington

  • Dreahook Road
  • Voorhees Road
  • Dogwood Drive
  • CR 523/Flemington-Whitehouse Road
  • Holland Brook Road (it crosses twice)
  • Roosevelt Road
  • Pine Bank Road (it crosses twice)
  • Hillcrest Road in Readington Village

In Branchburg

Holland Brook Schools Through Time

The name "Holland Brook School" has been used for two different schools over the years.

The First Holland Brook School

The first Holland Brook School was in Readington Village during the 1800s. In 1791, a law was passed to help create learning societies. On August 4, 1804, a group of people officially started the Holland Brook School.

One of the teachers at this school was Colonel John Mehelm. His house, which burned down in the 1960s, has a historical marker in front of it today. The school later changed its name to Readington School and closed in 1897.

The Current Holland Brook School

The second and current Holland Brook School is a primary school. It teaches students in fourth and fifth grades. This school was built right next to the Readington Middle School.

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