Bridge L-158 is a disused railroad bridge over
Muscoot Reservoir
The Muscoot Reservoir is a reservoir in the New York City water supply system in northern Westchester County, New York, located directly north of the village of Katonah. Part of the system's Croton Watershed, it is 25 miles (40 kilometres) north ...
near
Goldens Bridge, New York, United States. Built to carry
New York Central Railroad
The New York Central Railroad was a railroad primarily operating in the Great Lakes and Mid-Atlantic regions of the United States. The railroad primarily connected greater New York and Boston in the east with Chicago and St. Louis in the Midw ...
traffic over
Rondout Creek
Rondout Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed October 3, 2011 tributary of the Hudson River in Ulster and Sullivan counties, New York, United States. It rises on Rock ...
near
Kingston, it was moved to its current location in 1904.
In 1960, it was taken out of service and the tracks removed. It is the only remaining double-intersection
Whipple truss
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or ...
railroad bridge in New York.
In 1978, it was listed on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...
, the only bridge entirely within
Westchester County
Westchester County is located in the U.S. state of New York. It is the seventh most populous county in the State of New York and the most populous north of New York City. According to the 2020 United States Census, the county had a population o ...
to be listed in its own right.
[The ]Bear Mountain Bridge
The Bear Mountain Bridge, ceremonially named the Purple Heart Veterans Memorial Bridge, is a toll suspension bridge in New York State. It carries US 6 and US 202 across the Hudson River between Bear Mountain State Park in Orange Co ...
is also listed, but it is shared with Rockland County
Rockland County is the southernmost county on the west side of the Hudson River in the U.S. state of New York. It is part of the New York metropolitan area. It is about from the Bronx at their closest points. The county's population, as of th ...
. Some other listings, such as the Gerard Crane House, include bridges but only as contributing properties or resources.
Location
The bridge is located over an inlet in the reservoir approximately one half-mile (1 km) west of the
Goldens Bridge station on the
Metro-North
Metro-North Railroad , trading as MTA Metro-North Railroad, is a suburban commuter rail service run by the Metropolitan Transportation Authority (MTA), a public authority of the U.S. state of New York and under contract with the Connecticut D ...
Harlem Line
The Metro-North Railroad Harlem Line, originally chartered as the New York and Harlem Railroad, is an commuter rail line running north from New York City to Wassaic, in eastern Dutchess County. The lower from Grand Central Terminal to Southea ...
and
Interstate 684
Interstate 684 (I-684) is a north–south auxiliary Interstate Highway in the state of New York in the United States. There is also a short portion in Connecticut with no junctions. The highway connects I-84 with I-287 and the Hutchinson ...
. It straddles the line between the town of
Lewisboro
Lewisboro is a town in Westchester County, New York, United States. The population was 12,411 at the 2010 census. The town is named after John Lewis, an early settler. Lewisboro is a suburb of New York City.
History
After purchasing land from ...
on the east and
Somers on the west.
NY 138 crosses the reservoir to the north. It is most clearly seen from here, although it can also be seen through the woods from commuter trains near the station.
It is surrounded by woodlands, part of the reservoir's protected watershed lands, all owned, like the bridge, by the
New York City Department of Environmental Protection
The New York City Department of Environmental Protection (DEP) is the department of the government of New York City that manages the city's water supply and works to reduce air, noise, and hazardous materials pollution.
Under a 1.3 billion do ...
. The former route of the tracks is visible on both approaches to the bridge.
Structure
Both
truss
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure.
In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assembl ...
es are long, consisting of nine identical panels. The web is deep. Two
concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most wi ...
abutment
An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining walls ...
s support the bridge above mean water level.
Its pin-connected superstructure uses
wrought iron
Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag Inclusion (mineral), inclusions (up to 2% by weight), which give it a ...
Phoenix column
The Phoenix Iron Works (1855: Phoenix Iron Company; 1949: Phoenix Iron & Steel Company; 1955: Phoenix Steel Corporation), located in Phoenixville, Pennsylvania, was a manufacturer of iron and related products during the 19th century and early 20th ...
s in its top
chord and compression members. The end posts and upper chord are made up of six
flange
A flange is a protruded ridge, lip or rim (wheel), rim, either external or internal, that serves to increase shear strength, strength (as the flange of an iron beam (structure), beam such as an I-beam or a T-beam); for easy attachment/transfer of ...
d
cast
Cast may refer to:
Music
* Cast (band), an English alternative rock band
* Cast (Mexican band), a progressive Mexican rock band
* The Cast, a Scottish musical duo: Mairi Campbell and Dave Francis
* ''Cast'', a 2012 album by Trespassers William
* ...
elements
rivet
A rivet is a permanent mechanical fastener. Before being installed, a rivet consists of a smooth cylindrical shaft with a head on one end. The end opposite to the head is called the ''tail''. On installation, the rivet is placed in a punched ...
ed together. The intermediate verticals and lateral struts have four apiece.
The diagonals and lower chord have rectangular
eyebar
In structural engineering and construction, an eyebar is a straight bar, usually of metal, with a hole ("eye") at each end for fixing to other components. Eyebars are used in structures such as bridges, in settings in which only tension, and ne ...
s wide. Round bars are used for the counters and sway braces. The
ties TIES may refer to:
* TIES, Teacher Institute for Evolutionary Science
* TIES, The Interactive Encyclopedia System
* TIES, Time Independent Escape Sequence
* Theoretical Issues in Ergonomics Science
* The International Ecotourism Society
The Inter ...
are on iron
stringer
Stringer may refer to:
Structural elements
* Stringer (aircraft), or longeron, a strip of wood or metal to which the skin of an aircraft is fastened
* Stringer (slag), an inclusion, possibly leading to a defect, in cast metal
* Stringer (stairs), ...
s riveted to transverse iron floor beams. Both
portals are decorated with
quatrefoil
A quatrefoil (anciently caterfoil) is a decorative element consisting of a symmetrical shape which forms the overall outline of four partially overlapping circles of the same diameter. It is found in art, architecture, heraldry and traditional ...
brackets
A bracket is either of two tall fore- or back-facing punctuation marks commonly used to isolate a segment of text or data from its surroundings. Typically deployed in symmetric pairs, an individual bracket may be identified as a 'left' or 'r ...
and
finial
A finial (from '' la, finis'', end) or hip-knob is an element marking the top or end of some object, often formed to be a decorative feature.
In architecture, it is a small decorative device, employed to emphasize the Apex (geometry), apex of a d ...
s.
History
The bridge was originally the smallest of three spans in a viaduct-bridge combination along the former
West Shore Line
The River Line was a Conrail rail line located between Jersey City, New Jersey and Selkirk, New York, running along the west side of the Hudson Palisades and, after passing through a tunnel at Haverstraw, New York, along the west bank of the Hud ...
at the mouth of
Rondout Creek
Rondout Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed October 3, 2011 tributary of the Hudson River in Ulster and Sullivan counties, New York, United States. It rises on Rock ...
in
Kingston, to the north. It was built in 1883 by
Clarke, Reeves & Company, a Philadelphia-based
subsidiary
A subsidiary, subsidiary company or daughter company is a company owned or controlled by another company, which is called the parent company or holding company. Two or more subsidiaries that either belong to the same parent company or having a s ...
of the
Phoenix Iron Works as a double-tracked structure, known administratively within the Central as Bridge 141.
In 1904, the railroad built another bridge at the Rondout that could carry the entire load on one span. At the same time, New York City was beginning to buy, clear and flood land for
its water supply system in the
Croton River
The Croton River ( ) is a river in southern New York with three principal tributaries: the West Branch, Middle Branch, and East Branch. Their waters, all part of the New York City water supply system, join downstream from the Croton Falls Rese ...
watershed. Railroads in the area were required, under their agreements with the city, to install bridges over any inundated areas at their own expense.
The railroad decided to move Bridge 141, now Bridge L-158, south to the new reservoir where it would easily bridge the gap needed for the
Mahopac
Mahopac ( or ) is a hamlet (and census-designated place) in the town of Carmel in Putnam County, New York, United States. Also known as Lake Mahopac, the exurb is located some north of New York City, on US Route 6 at the county's southern central ...
Branch from the former
New York and Harlem Railroad
The New York and Harlem Railroad (now the Metro-North Railroad's Harlem Line) was one of the first railroads in the United States, and was the world's first street railway. Designed by John Stephenson, it was opened in stages between 1832 and ...
main line. The branch, formerly the New York & Mahopac Railroad, served what had been a summer resort community in the 19th century. Since it was a single-track line, the bridge was rebuilt that way, its width reduced to .
Service on the Mahopac Branch continued until 1960. The tracks were eventually dismantled to and from the bridge, but the bridge itself remained. In 1976, a survey team from the
Historic American Engineering Record
Heritage Documentation Programs (HDP) is a division of the U.S. National Park Service (NPS) responsible for administering the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER), and Historic American Landscapes ...
found that it remained in good condition despite the lack of maintenance or use.
Its presence on New York City watershed land, where public access is tightly restricted, has helped
preserve
The word preserve may refer to:
Common uses
* Fruit preserves, a type of sweet spread or condiment
* Nature reserve, an area of importance for wildlife, flora, fauna or other special interest, usually protected
Arts, entertainment, and media
...
it as well.
See also
*
*
*
References
External links
*
Pictures of Bridge L-158 and the Muscoot Reservoir
{{National Register of Historic Places in New York
L158
L158
L158
L158
Historic American Engineering Record in New York (state)
L158
L158
National Register of Historic Places in Westchester County, New York
Transportation buildings and structures in Westchester County, New York
Somers, New York
1883 establishments in New York (state)