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Amtrak_Susquehanna_River_Bridge Latitude and Longitude:
39°33′17″N 76°05′06″W / 39.5548°N 76.0851°W / 39.5548; -76.0851
From Wikipedia, the free encyclopedia
Amtrak Susquehanna River Bridge
Southbound Acela Express crosses the bridge in 2008. The piers of the predecessor P.W. & B. Railroad Bridge are to the right.
Coordinates 39°33′17″N 76°05′06″W / 39.5548°N 76.0851°W / 39.5548; -76.0851
Carries Amtrak Northeast Corridor rail line
Crosses Susquehanna River
Locale Havre de Grace and Perryville, Maryland
Official nameSusquehanna River Movable Bridge
Maintained by Amtrak
Characteristics
DesignHowe deck truss
MaterialSteel
Total length4,153 feet (1,266 m) [1]: 119 
No. of spans18 (including center swing span) [1]: 119 
Clearance below52 feet (15.8 m) when closed; 127 feet (38.7 m) when open [2]
Rail characteristics
No. of tracks2
Track gaugeStandard
History
Constructed by Pennsylvania Steel Company and American Bridge Company
OpenedMay 29, 1906 [3]
Statistics
Daily trafficOver 110 passenger and freight trains per day [4]
Location
Aerial view of center swing span. Stone piers of the 1866 P.W. & B. Railroad Bridge can be seen in the foreground. Other bridges visible upstream are, front to back: the Thomas J. Hatem Memorial Bridge (U.S. Route 40), the CSX Susquehanna River Bridge, and the Millard E. Tydings Memorial Bridge (I-95).

The Amtrak Susquehanna River Bridge is a Howe deck truss structure, opened in 1906, that carries two tracks of Amtrak's Northeast Corridor line across the Susquehanna River between Havre de Grace and Perryville, Maryland. [5]

History

Aerial view, 1931

The vicinity of the bridge has been used as a river crossing for more than 300 years. In 1695, the colonial General Assembly granted the first licenses to operate a ferry between Perryville and what is now Havre de Grace. In 1837, railroad lines south from Wilmington, Delaware, and north from Baltimore arrived at the riverbanks. For 29 years, including the duration of the American Civil War, a train ferry carried passengers (on foot) and freight cars between the two towns. In 1854, a larger ferryboat began to transport entire passenger cars across the river. [1]: 37–40, 111 

In 1866, after 12 years of intermittent construction, the Philadelphia, Wilmington, and Baltimore Railroad (PW&B) completed a wooden single-track railroad bridge. Iron reinforcements were added between 1874 and 1880. In 1881, when the Pennsylvania Railroad (PRR) formally took control of the PW&B, it cut rival Baltimore & Ohio Railroad's access to the PW&B. The B&O was forced to construct a parallel route between Baltimore and Philadelphia, including a new bridge about 1 mile (1.6 km) upstream.

In 1904-06, the PRR replaced the PW&B crossing with a new bridge just a few yards upstream. [1]: 40–43, 117–118  Construction on the main structure started on August 5, 1905, and the first train rode over the bridge on May 26, 1906. The bridge was made parallel to the old bridge. The Pennsylvania Steel Company erected the west half of the bridge and the American Bridge Company erected the east half. A strike of American Bridge Company's employees delayed construction. The bridge was 4,154 feet in length: eight spans 260 feet in length, seven spans 200 feet and 9 inches in length and a draw span of 260 feet. [6] Opened on May 29, 1906, [3] it includes a center swing span to increase vertical clearance for water traffic from the nominal 52 feet (15.8 m). [2] [6] In 1934, the PRR began installing catenary on the span to help extend 11,000-volt electrification south from Wilmington to Washington, D.C. Regular electrified passenger service across the bridge began on February 10, 1935. [1]: 44–45 

Ownership of the bridge passed to Amtrak in 1976 when it acquired much of the Northeast Corridor infrastructure. [7]

Present status

As of 2006, about 100 Amtrak and MARC passenger trains crossed the bridge each weekday at 90 miles per hour (140 km/h); about 12 freight trains a day crossed at 30 miles per hour (48 km/h). Freight traffic, operated by Norfolk Southern Railway under a trackage rights agreement, is generally restricted to nighttime hours to avoid interfering with passenger operations. [8]

The only significant commercial water traffic under the bridge consists of barges from a large granite quarry just upstream of Havre de Grace. [9]: 233  The bridge's swing span rarely needs to be opened; vessels that require such an opening must provide 24-hour advance notice. [1]: 125 

In 2005 and 2007, Amtrak replaced the ties on the bridge, installed continuous welded rail, and installed new deck-level maintenance walkways, changes meant to extend the life of the bridge by 20 to 25 years. [10]

Replacement

Preparations to replace the 1906 bridge began in May 2011, when the U.S. Department of Transportation said it would provide $22 million for engineering and environmental work. [11] (The Bush River and Gunpowder River bridges, two spans of similar age on the Northeast Corridor in Maryland, were also under consideration for replacement. [12]) The project study began in 2013 and was completed in 2017. [13] In 2017, Amtrak listed a new bridge among its "Ready To Build" projects on the Northeast Corridor. [14]

In November 2022, Amtrak announced plans to replace the bridge, with design and construction contracts to be awarded in 2023 by Amtrak, the FRA, and MDOT MTA. [4] In November 2023, Amtrak secured $2.1 billion for the project via the Infrastructure Investment and Jobs Act. The new bridge will include two 2-track spans and allow speeds up to 125 mph. [15]

References

Wikimedia Commons has media related to Amtrak Susquehanna River Bridge.
  1. ^ a b c d e f Roberts, Charles S.; David W. Messer (2003). Triumph VI: Philadelphia, Columbia, Harrisburg to Baltimore and Washington DC: 1827-2003. Baltimore, Maryland: Barnard, Roberts, and Co., Inc. ISBN  0-934118-28-0.
  2. ^ a b "Nautical chart for Perryville vicinity". Maptech MapServer. Retrieved December 28, 2008.[ permanent dead link]
  3. ^ a b Baer, Christopher T. "PRR Chronology: 1906" (PDF). Archived (PDF) from the original on September 16, 2015. Retrieved June 4, 2015.
  4. ^ a b Weinberg, Harrison (November 18, 2022). "Amtrak Advances Susquehanna River Bridge Project". media.amtrak.com. Amtrak. Archived from the original on November 26, 2022. Retrieved November 25, 2022.
  5. ^ Jeremy Steinemann (August 23, 2011). "A 21st Century NEC: The Top Four Failing Bridges that Must Be Replaced". Northeast Alliance for Rail. Archived from the original on December 8, 2022. Retrieved February 7, 2024. In May 2011, Maryland was awarded a $22 million federal, high-speed rail grant to support initial design and engineering for the Susquehanna Bridge replacement. Priced at $500 million, the bridge is the most expensive to replace in Maryland.
  6. ^ a b "Pennsy to Use the Big Bridge Today". Cecil Whig. 1906-05-26. p. 1. Archived from the original on 2023-07-01. Retrieved 2023-07-01 – via Newspapers.com. Open access icon
  7. ^ Baer, Christopher T. "PRR Chronology: 1976" (PDF). Archived (PDF) from the original on September 29, 2022. Retrieved June 4, 2015.
  8. ^ Volin, Rudy (July 6, 2006). "Hot Spots: Perryville and Havre de Grace, Md". TRAINS Magazine. Archived from the original on 4 December 2008. Retrieved December 28, 2008.
  9. ^ Brubaker, John H. (2002). Down the Susquehanna to the Chesapeake. Penn State Press. ISBN  0-271-02184-5.
  10. ^ "Capital Investment in Bridge Aims to Improve Reliability" (PDF). Amtrak Ink. March 2007. pp. 1–7. Archived (PDF) from the original on June 6, 2011. Retrieved December 28, 2008.
  11. ^ U.S. Department of Transportation (May 9, 2011). "U.S. Transportation Secretary LaHood Announces $2 Billion for High-Speed Intercity Rail Projects to Grow Jobs, Boost U.S. Manufacturing and Transform Travel in America". Archived from the original on February 20, 2013. Retrieved April 30, 2013.
  12. ^ Decker, Caroline. "Amtrak Update: CSG-ERC Executive Committee". Archived from the original on October 16, 2009. Retrieved December 28, 2008.
  13. ^ "Susquehanna River Rail Bridge Project". Amtrak. Archived from the original on February 20, 2020. Retrieved February 19, 2020.
  14. ^ Ready To Build: Susquehanna River Bridge. YouTube.com. Amtrak. October 4, 2017. Archived from the original on 2021-12-22. Retrieved February 19, 2020.
  15. ^ "Fact Sheet: President Biden Advances Vision for World Class Passenger Rail by Delivering Billions in New Funding". The White House. 2023-11-06. Archived from the original on 2023-11-06. Retrieved 2023-11-06.

External links

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