Locktown–Sergeantsville Road truss bridge over Plum Brook

The Old Mill Road truss bridge over the Wickecheoke Creek is a historic Pratt truss bridge located in Delaware Township in Hunterdon County, New Jersey, United States. Built in 1899, it was added to the National Register of Historic Places on May 23, 2025, for its significance in engineering and transportation. It was listed as part of the Historic Bridges of Delaware Township, Hunterdon County, New Jersey Multiple Property Submission (MPS).

Locktown is an unincorporated community located within Delaware Township in Hunterdon County, New Jersey, United States. The settlement is located in the northern portion of Delaware Township near its border with Kingwood Township and the Wickecheoke Creek. The surrounding area is very forested and rural but the settlement includes some historic churches including the Locktown Baptist Church. The church was listed on the National Register of Historic Places in 1974. The nearby Locktown–Sergeantsville Road truss bridge over Plum Brook was listed on the NRHP in 2025.

The Peck's Ferry Bridge is a historic Warren truss bridge that carries Locktown-Flemington Road over Plum Brook in Delaware Township of Hunterdon County, New Jersey, United States. Built in 1900 by John W. Scott of Flemington, it was added to the National Register of Historic Places on November 12, 1999, for its significance in engineering. It was reconstructed in 2004. The 29 foot (8.8 m) long single-span bridge crosses Plum Brook, a tributary of the Wickecheoke Creek, which flows into the Delaware River at Prallsville. According to the nomination form, it is a modified Warren truss bridge. Scott also built the nearby Stone Sign Post Road Bridge over Plum Brook.

Locktown Baptist Church is a historic church in Locktown (Delaware Township), Hunterdon County, New Jersey, United States. It was built in 1819 and added to the National Register of Historic Places on February 15, 1974.

The Covered Bridge Historic District, in Delaware Township, Hunterdon County, New Jersey, is a 97-acre (39 ha) historic district along County Route 604, Pine Hill Road, and Lower Creek Road. It was listed on the National Register of Historic Places on March 5, 1999, for its significance in architecture, settlement, and transportation. The listing included seven contributing buildings, two contributing structures, and three contributing sites.

Green Sergeant's Covered Bridge is a wooden covered bridge over the Wickecheoke Creek near the border between the Hunterdon Plateau and Amwell Valley located in Delaware Township, Hunterdon County, New Jersey. As the last historic covered bridge in the state of New Jersey, it was listed on the National Register of Historic Places on November 19, 1974 for its significance in engineering and transportation (the Scarborough Bridge in Cherry Hill is the only other covered bridge in New Jersey). It was added as a contributing property to the Covered Bridge Historic District in 1999.

Sergeantsville is a historic unincorporated community located within Delaware Township, in Hunterdon County, in the U.S. state of New Jersey.Sergeantsville was first settled by a Mr. Thatcher in 1700, and was later named for Charles Sergeant, an American Revolutionary War soldier, in honor of the Sergeant family of which three brothers were local shopkeepers. "Out-of-towners give themselves away when they pronounce the first syllable 'sarge'; it's 'serge.'" Green Sergeant's Covered Bridge, constructed in 1872 across the Wickecheoke Creek, is located just west of Sergeantsville and is the oldest remaining covered bridge in New Jersey.Sergeantsville was officially created in 1827 when it became desirable to establish a post office. Until that time, this largely rural area was known as "Skunktown", perhaps because the town served as a market center for skunk pelts.Sergeantsville's annual "Thanksgiving in the Country" house tour, established in 1973, takes four or five different homes each year, that have historical, architectural or cultural qualities.

The Stone Sign Post Road Bridge over Plum Brook is a historic Warren truss bridge located in Delaware Township in Hunterdon County, New Jersey, United States. Built in 1903 by John W. Scott of Flemington, it was added to the National Register of Historic Places on October 4, 2016, for its significance in engineering. It was listed as part of the Historic Bridges of Delaware Township, Hunterdon County, New Jersey Multiple Property Submission (MPS). The 26 foot (7.9 m) long single-span bridge crosses Plum Brook, a tributary of the Wickecheoke Creek, which flows into the Delaware River at Prallsville. According to the nomination form, it is a distinct modification of a traditional Warren truss bridge. Scott also built the nearby Peck's Ferry Bridge, which also crosses Plum Brook.

Delaware Township is a township in Hunterdon County, in the U.S. state of New Jersey. Part of the township is on the Hunterdon Plateau, while the southern portions are in the Amwell Valley. As of the 2020 United States census, the township's population was 4,560, a decrease of three people (−0.1%) from the 2010 census count of 4,563, which in turn reflected an increase of 85 (+1.9%) from the 4,478 counted in the 2000 census.The historic community of Sergeantsville is located within Delaware Township, as well as the unincorporated community of Raven Rock.

Lockatong Creek is a 15.6-mile-long (25.1 km) tributary of the Delaware River in Hunterdon County, New Jersey in the United States.Lockatong is derived of a Munsee phrase — lokatink, or “place of wheat meal".

The Carrell–Kurzenberger Farmstead, also known as the John A. Carrell Homestead, is a historic 119.8-acre (48.5 ha) farm located at 51 Lambert Road in Delaware Township in Hunterdon County, New Jersey, United States. The farmstead was added to the National Register of Historic Places on September 28, 2026, for its significance in agriculture and architecture. The historic district has eight contributing buildings, one contributing site, and two contributing structures.

Sand Brook is an unincorporated community located along County Route 523, Sand Brook-Headquarters & Britton Roads in Delaware Township in Hunterdon County, in the U.S. state of New Jersey.