Raritan River Railroad

Raritan River Rail Road

Company type	Private
Industry	Railroad
Founded	April 21, 1888 (1888-04-21)
Fate	Incorporated into Conrail in 1980
Headquarters	South Amboy , United States
Area served	Middlesex County, New Jersey

The Raritan River Rail Road was a shortline railroad operating within Middlesex County, New Jersey, established in 1888 and headquartered in South Amboy. Its route extended westward to New Brunswick, where it provided both passenger and freight services with profitability for much of its operation. In 1980, the Raritan River was incorporated into Conrail, transitioning into a branch line under Conrail Shared Assets Operations and terminating at U.S. Route 1 in North Brunswick.

Construction

Founded during a period of decelerating railroad expansion in the late 1880s, the Raritan River Rail Road aimed to link South Amboy with Bound Brook and New Brunswick. The company was incorporated on April 21, 1888, with an initial capital stock of $100,000 and $40,000 paid-in capital (equivalent to $2,000 per mile). Edward H. Ripley was appointed president, while E. W. Harrison took on the role of Chief Engineer. Construction commenced in May 1888 at Sayreville utilizing 60 lb/yd rails, with operations launching by the end of that year.

At Sayreville, the line connected with the Pennsylvania Railroad (PRR) through Suchs’ siding—a spur serving sand and clay industries—and later extended eastward to South Amboy via the Central Railroad of New Jersey (CNJ) over the New York & Long Branch line. The western extension from Milltown to New Brunswick was completed in 1891. By 1901, a new PRR connection was established at South Amboy, which allowed the original Suchs siding link to be retired.

Initial operations employed two 4-4-0 steam locomotives (Nos. 1 and 2) alongside twenty short-ton gondola cars, primarily supporting local sand and clay businesses.

The construction phase encountered labor challenges and community resistance. In August 1888, workers went on strike after a contractor fled without paying their wages; authorities responded by seizing equipment to cover unpaid salaries. On May 5, 1889, a significant clash known as the "Sayreville Riot" erupted when land acquisition attempts were violently opposed by landowner Noah Furman and his supporters. This altercation resulted in a fatality and murder charges against two railroad officials; however, all charges were eventually dismissed following extensive media attention and legal inquiry.

Later that year, additional labor unrest occurred when unpaid subcontractor employees rioted in South River, necessitating sheriff intervention.

Early years

Main Line Stations
(as of May 28, 1893)
Branches shown in gray

Station name	Distance
South Amboy	—
Bergen Hill	1.1 miles (1.8 km)
Roberts	2.3 miles (3.7 km)
Melfort	2.7 miles (4.3 km)
Sayreville Junction	3.5 miles (5.6 km)
Sayreville Branch	to Sayreville - 2 miles (3.2 km)
Edgars	4.8 miles (7.7 km)
Vandeventers	5.7 miles (9.2 km)
South River	6.4 miles (10.3 km)
Milltown	9.9 miles (15.9 km)
New Brunswick	11.9 miles (19.2 km)

As construction progressed toward New Brunswick, two initial branch lines were developed: the Sayreville Branch spanning 2.1 miles (1890), servicing Sayre and Fisher Brick Yards, and the Serviss Branch extending one mile into East Brunswick (1891), designed to access sand and clay deposits. The railroad acquired its third locomotive in 1890 along with an order for fourteen freight cars rated at thirty tons each.

On July 4, 1891, the inaugural train departed Milltown; shortly thereafter, track length reached twelve miles culminating at New Brunswick. The company chose not to build a crossing over the Raritan River into New Brunswick due to financial constraints and limited freight demand.

Between its inception in 1888 and 1898, RRRR operated three locomotives, maintained thirty-four freight cars and six passenger coaches across twelve miles of mainline track plus two branches. Ownership was split between the Pennsylvania Railroad (holding forty percent) and Central Railroad of New Jersey (with sixty percent), while day-to-day management remained local in South Amboy.

Throughout the 1890s, infrastructure improvements were implemented alongside expansion of the locomotive fleet to accommodate rising demand from brick manufacturers and sand/clay operations such as Crossman's in Sayreville—which included a narrow gauge railway connecting to RRRR.

Sayreville Junction was established midway along the line for car storage and classification purposes, enabling effective sorting of freight moving east-west from connections with PRR or NYLB.

In the early twentieth century, the Serviss Branch was extended from one mile to four miles to serve growing sand and clay pits near South River; a small brickyard operated at its terminus as well. The New Brunswick Sanford Street station was constructed featuring substantial facilities for both passengers and freight handling. By 1900, locomotives Nos. 4 and 5 were added along with five larger freight cars rated at forty tons; around 1901, a more powerful No.3 replaced an original engine.

The South River Branch opened in 1905 as a two-mile extension south from South River station; engine No.6 entered service that year as well. By this time, RRRR had doubled its locomotive count to six compared with numbers from 1898. Around 1907, engines Nos. 1 and 2 were replaced by more powerful models.

By 1910 freight volumes had surged considerably, leading to an order for forty-four fifty-ton gondola cars—bringing total freight cars to eighty-three—while passenger service remained secondary with only six coaches available then. A major industrial client was Michelin Tire Company located in Milltown employing over two thousand workers and generating significant rail traffic.

Milltown Station handled express shipments nationwide via Railway Express agents attached to passenger trains. Passenger demand increased further resulting in acquisition of twelve passenger cars plus two combine cars from Delaware, Lackawanna and Western Railroad in 1915. Between 1912 and 1915 locomotive numbers expanded from ten engines; by 1917 total power reached fifteen units.

In response to World War I production demands, the Gillespie Branch was constructed in 1917 serving T Gillespie Powder Works munitions plant operated by Gillespie, DuPont, and Hercules—resulting in high freight volumes including four daily shipments of fifty-ton cars from DuPont alone. The Gillespie facility was destroyed by explosions in October 1918.

World War I also stimulated passenger traffic growth; two additional Lackawanna passenger cars were added in 1917. By 1918 RRRR operated a peak schedule featuring twenty-two daily passenger trains plus seven Sunday extras transporting approximately nine thousand passengers per day alongside moving roughly one-and-a-half million tons of freight including war materials using fifteen locomotives, sixteen passenger cars, and about eighty-three freight cars.

Interbellum

Primary Line Stations
(as of January 27, 1936)
Stations offering passenger service in blue
Branches shown in gray

Station name	Distance
South Amboy	—
Stevens Avenue	0.3 miles (0.5 km)
Bergen Hill	1.1 miles (1.8 km)
Phoenix	2 miles (3.2 km)
Sayreville Junction	3.5 miles (5.6 km)
Sayreville Branch	to Sayreville - 2 miles (3.2 km)
Parlin	4 miles (6.4 km)
Gillespie	5.1 miles (8.2 km)
Vandeventers	5.8 miles (9.3 km)
South River	6.4 miles (10.3 km)
South River Branch	to Wrights - 1 mile (1.6 km)
Serviss Junction	7.9 miles (12.7 km)
Serviss Branch	to South River (Reid Street) - 4 miles (6.4 km)
Milltown	9.9 miles (15.9 km)
New Brunswick	12.3 miles (19.8 km)

Following the conclusion of World War I, a decline in traffic led to the retirement of locomotive number 8. In 1919, a new facility featuring a 12-stall roundhouse and maintenance shops was erected near Stevens Avenue.

Throughout the 1920s, the railroad experienced diminished freight and passenger volumes, largely due to increasing competition from buses, automobiles, and trucks. By 1924, Moody's reported that the Raritan River Railroad (RRRR) maintained a fleet of only 50 freight cars after disposing of all smaller capacity cars. The passenger car inventory also shrank significantly; by 1925, merely six out of the initial fourteen Lackawanna passenger coaches remained in service. Several locomotives were decommissioned during this decade, including numbers 3, 4, and 6, with numbers 1 and 2 being scrapped by the end of the period. The Milltown Spur was constructed in 1925 to provide service to a local sand and clay extraction site. By 1929, only eight locomotives remained operational.

The onset of the Great Depression further curtailed RRRR's operations; the shutdown of Michelin Tire’s Milltown facility in 1930 drastically reduced freight traffic in the area. Most sand and clay pits ceased operations, causing service on the Serviss Branch to nearly disappear. Revenues were halved, and passenger train frequency dropped from twenty-two daily runs in 1917 to just four by 1930. By the mid-1930s, only two original Lackawanna passenger coaches were still active; cabooses were also phased out during this time. Locomotives numbered 7 and 12 were scrapped in 1933 and 1937 respectively.

As of April 1936, passenger operations were restricted to a single daily round trip between Parlin and New Brunswick, supplemented by additional weekday services running from Stevens Avenue to New Brunswick.

By 1937, most of the sand, clay, and brick manufacturing industries that had previously driven RRRR's expansion had disappeared; however, Crossman’s and Whithead’s businesses remained operational and even grew. Half of the older gondola freight cars had been scrapped by this time. The final combination passenger car was retired in 1937, ending baggage service and leaving only one passenger coach on the roster.

That same year introduced two new Lackawanna cabooses numbered 5 and 6.

Passenger service was completely discontinued on April 17, 1938, after nearly five decades of operation. This termination allowed for operational consolidation at Parlin Station; former passenger stations at Milltown and New Brunswick were repurposed exclusively for freight handling.

To commemorate this change, the North Jersey Chapter of the National Railway Historical Society organized a farewell excursion on May 28, 1938. The special train visited significant infrastructure points such as the Lawrence Brook Trestle, Serviss Branch siding near Route 18 crossing, South River’s manually operated hand-cranked swing bridge—the last remaining example in New Jersey—and RRRR’s shops at South Amboy before returning to New Brunswick at a special speed reaching up to .

In late 1938, reflecting an economic upturn and increased freight demand, RRRR acquired a new locomotive numbered 8—the first engine purchase since World War I in 1916.

World War II

Freight volumes rose sharply during the 1940s and throughout World War II. In 1941, the Raritan River Railroad introduced engine No. 7, replacing an earlier unit that had been scrapped in 1937. Following the war’s conclusion, the railroad purchased seven surplus locomotives from the US Army for $100,000, which facilitated the retirement of older steam engines. In 1947, locomotive No. 15 was dismantled after being involved in an accident near the Pennsylvania Railroad connection.

Post-war

Active Customers in 1979

Company	Location	Revenue Share
National Lead	Phoenix Branch	30%
Hercules Chemical Company	Parlin	16%
Sunshine Biscuits	Gillespie Branch	8%
C&E	New Brunswick	8%
Continental Baking Company	East Brunswick Branch	7%
Cel Fibe (Personal Products)		7%
Personal Products	Milltown	6%
H&F	Milltown	5%
NJ Steel	Phoenix Branch	3%
Squibb	New Brunswick	3%
Premium Plastics	Milltown	2%
DuPont	Parlin	2%

The transition to diesel power occurred in the 1950s, with six EMD SW900 locomotives replacing steam engines by late 1954. This modernization enabled the closure of the roundhouse and reduced operating expenses. The inactive Serviss Branch was abandoned and dismantled in 1956, alongside removal of the Fresh Ponds spur located in Milltown.

During construction of the New Jersey Turnpike, freight tonnage temporarily rose due to hauling sand and fill materials. Principal shippers at this time included National Lead, DuPont, Hercules, and Johnson & Johnson.

As industrial activity on the East Coast waned, the railroad discontinued Less-Car-Load freight by 1964 and closed several freight stations; coal shipments nearly vanished. A damaged Norfolk & Western boxcar was rebuilt and renumbered as No. 100 for internal freight use.

Despite financial failures of parent companies CNJ and Penn Central, RRRR maintained solvency, supported by the Highview industrial complex in East Brunswick which featured multiple spurs serving Continental Bakery and other customers. Sunshine Biscuit operated a facility on the Gillespie Branch receiving flour shipments. Upgrades were made to South River Branch and New Brunswick trackage to accommodate a new rail-to-truck transfer client. In 1975, the railroad leased 100 fifty-foot boxcars to enhance revenue streams.

The year 1979 marked RRRR’s peak revenue performance with operating income reaching $1,968,671. Established clients such as DuPont and Hercules sustained operations while Sunshine Biscuit and Continental Baking contributed to branch line activity, supporting smaller customers.

When Conrail was established in April 1976 to consolidate failing eastern railroads, RRRR resisted absorption despite its parent companies’ bankruptcies. Ultimately, on April 24, 1980, Raritan River Railroad was merged into Conrail.

Subsequent Conrail Ownership

Conrail Shared Assets Operations (CSAO), jointly owned by CSX Transportation and Norfolk Southern, incorporated the former Raritan River Railroad mainline as Conrail’s Sayreville Running Track. This line connected with Conrail’s Browns Yard near Bordentown Avenue via a newly constructed link following the merger. Significant enhancements were made to Browns Yard, centralizing classification and storage functions previously conducted at Sayreville Junction.

Older wooden and steel cabooses were replaced with modern steel models from Conrail’s fleet. The remaining leased fleet of ninety-seven fifty-foot boxcars was renumbered and integrated into Conrail’s inventory. Six EMD SW900 locomotives received new numbers for service on the former RRRR line; all but one were scrapped by 1984. Former RRRR locomotive #4 was sold to PECO Energy Company for use at their Eddystone, Pennsylvania facility. Most unionized workers transferred to Conrail employment while clerical and managerial staff were terminated; out of fifty-six employees in 1980, thirty remained with Conrail.

Conrail ceased operations at South Amboy shops and discontinued interchange with Pennsylvania Railroad there in 1976. The Gillespie Branch—renamed Gillespie Running Track—was extended for direct connection to Browns Yard, enabling abandonment of South Amboy connections with NJ Transit’s North Jersey Coast Line. Freight operations now terminate at the Phoenix Spur which primarily handles scrap steel shipments. The former engine shop was destroyed by fire in 1983.

By the early 1990s, stations at New Brunswick and Parlin were demolished. The Milltown spur serving the former Michelin Tire Complex remains physically intact but disconnected from mainline service; both sites are listed on the New Jersey Register of Historic Places. Current trackage ends at Silverline Windows in North Brunswick east of U.S. Route 1.

Several key customers discontinued rail service during the 1980s and 1990s: Dupont removed its siding; National Lead—the railroad’s largest historic customer—closed its facility now classified as a brownfield site. Hercules maintains a connection with occasional shipments. Both Sunshine Biscuit and Continental Baking plants have ceased operations. The Gillespie Branch continues under CSAO Browns Yard management along with the East Brunswick branch. Some spurs remain linked but inactive; only one customer at Highview Industrial Complex in East Brunswick still receives rail freight shipments. The South River Branch was abandoned during the early 1980s.

Plans by Conrail to expand a rail-to-truck transfer terminal at New Brunswick were abandoned despite local support; subsequently, the entire complex was demolished and redeveloped into residential townhouses occupying the wye area.

By late 1990s, New Brunswick’s final rail customer—Bristol Myers Squibb—ceased tank car deliveries. The former Johnson & Johnson Milltown plant is now occupied by Silverline Windows which receives covered hopper cars loaded with plastic pellets. In October 2014, siding at the former National Lead location was reactivated temporarily to ship radiologically contaminated soils offsite.

The only remaining station building is located in Milltown, still bearing its original sign: Raritan River Railroad – Freight Station. Although showing signs of deterioration, restoration efforts are underway by the Raritan River Chapter of NRHS alongside Milltown Borough with plans to relocate and refurbish it. Owner James Curran has expressed willingness to consider donating this structure. The RRRR emblem remains faintly visible through rust on the swing bridge situated in South River.

Surviving Equipment

There are four known original RRRR railcars still in existence, while a fifth unit is missing and is believed to have been dismantled.

Existing Railcars

Car	Location	Details
Caboose #7	Allaire State Park, Wall Township, New Jersey	Refurbished in RRRR livery; currently functions as an office for the New Jersey Museum of Transportation's Pine Creek Railroad.
Caboose #8	Ivyland, Pennsylvania	No further information available
Caboose #10	Boonton, New Jersey	Owned by the Tri-State Railway Historical Society; completely restored and operational; housed at the United Railroad Historical Society of New Jersey facility.
Boxcar #100	Quakertown, Pennsylvania	Situated at Quakertown Depot on East Penn Railroad; painted in original RRRR colors; utilized for storage purposes.
SW900 #4	Location unknown	Last reported near PECO’s Eddystone property in 2016; current whereabouts are uncertain.

Operations

Active Customers

Milepost	Company	Commodities
1.0	CMC Steel	Inbound scrap metal; outbound rebars and coke
4.6	Ashland Global	Nitric acid deliveries
5.7	Riverside Supply (inactive)	Brick shipments
9.4	Mauser	Plastics
11.2	Silverline Windows	Plastic pellets

Under CSAO management, four former RRRR locations continue to serve customers with nearly daily train operations from Browns Yard.

At the eastern terminus on the Phoenix Spur, CMC Steel in Sayreville handles steel scrap inbound and ships rebars and coke outbound. Ashland Global receives chemical shipments at the site previously operated by Hercules. Although Riverside Supply remains connected by track, its brick rail service ended in 2020.

On the opposite side of the swing bridge, Mauser stands as the only active freight client within East Brunswick’s Highview complex; this spur is no longer linked to the main line. Silverline Windows, positioned at the western end, obtains plastic pellets, with trains servicing both Mauser and Silverline occurring only one to three times per week.

Passenger Proposal

New Jersey Transit along with Middlesex County, New Jersey are exploring light rail transit possibilities near New Brunswick, New Jersey aimed at alleviating traffic congestion. The plan includes consideration of utilizing the former Raritan River Railroad corridor running parallel to Route 18.

See also

• Freehold and Jamesburg Agricultural Railroad
• Monmouth Ocean Middlesex Line
• Middlesex Greenway

External links

• Tom’s Raritan River Railroad Page – Detailed overview of Raritan River Railroad’s history and operations.