|Termini||West Carson Street
|Opening||May 28, 1870|
|Owner||Port Authority of Allegheny County|
|Line length||635 feet (194 m)|
|Track gauge||5 ft (1,524 mm) (Russian gauge)|
6 mph (9.7 km/h)
|Location||Grandview Avenue at Wyoming Avenue,
|Architectural style||Late 19th And 20th Century
Revivals, Other, Second
|NRHP Reference #||74001742|
|Added to NRHP||June 25, 1974|
|Designated CPHS||March 15, 1974|
The Monongahela Incline, built by John Endres in 1870, is located near the Smithfield Street Bridge in Pittsburgh. It is the oldest continuously operating funicular in the USA. It is also one of two surviving inclines (the other is the nearby Duquesne Incline) from the original 17 passenger-carrying inclines built in Pittsburgh starting in the late 19th century. Its lower station is across the street from the Station Square shopping complex, and is easily accessible from the light rail system at the Station Square station.
Pittsburgh's expanding industrial base in 1860 created a huge demand for labor, attracting mainly German immigrants to the region. This created a serious housing shortage as industry occupied most of the flat lands adjacent to the river, leaving only the steep, surrounding hillsides of Mt. Washington or "Coal Hill" for housing. However, travel between the "hill" and other areas was hindered by a lack of good roads or public transport.
The predominantly German immigrants who settled on Mt. Washington, remembering the Seilbahns (cable cars) of their former country, proposed the construction of inclines along the face of Coal Hill. The result was the Monongahela Incline, which opened May 28, 1870. Earlier inclines were used to transport coal in the Pittsburgh area, including the Kirk Lewis incline on Mt. Washington and the Ormsby mine gravity plane in nearby Birmingham, later annexed to the city of Pittsburgh.
- Length: 635 feet (194 m)
- Elevation: 369.39 feet (112.59 m)
- Grade: 35 degrees, 35 minutes
- Gauge: [[Russian gauge|5 ft (1,524 mm)]] broad gauge
- Speed: 6 mph (9.7 km/h)
- Passenger Capacity: 23 per car
- Opened: 28 May 1870
- Renovated: 1882 (with steel structure)
- Original steam power replaced with electricity: 1935
- Renovated: 1982-83 new track structure, cars and stations
- Renovated: 1994 upper, lower stations, restored cars, replaced electric motors and controls
- "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09.
- "Local Historic Designations". Pittsburgh: Pittsburgh History & Landmarks Foundation. Retrieved 2011-08-09.
- "Inclines Rise to National Landmarks". Pittsburgh Post-Gazette (Pittsburgh, Pennsylvania). 7 May 1977. p. 5. Retrieved 3 January 2010.
- "Port Authority of Allegheny County: The Inclines". 2007. Retrieved November 26, 2010.
- "Monongahela and Duquesne Inclines". Retrieved 2009-05-21.
- Historic American Engineering Record (HAER) No. PA-226, "Monongahela Incline Plane", 28 photos, 36 data pages, 7 photo caption pages
- Lower Station from Google Maps Street View
- Upper Station from Google Maps Street View
- Port Authority of Allegheny County: The Inclines