Tacony – Palmyra Bridge

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Coordinates: 40 ° 0 '47 "  N , 75 ° 2' 35"  W.

Tacony – Palmyra Bridge
Tacony – Palmyra Bridge
The Tacony – Palmyra Bridge 2009
use Road bridge
Crossing of Delaware River
place Tacony ( Philadelphia ), PA and Palmyra , NJ
construction Truss
bridge tied arch bridge
overall length 1115 m
Longest span 164 m
opening 1929
planner Modjeski , Masters & Chase
Paul Philippe Cret (architect)
location
Tacony – Palmyra Bridge (New Jersey)
Tacony – Palmyra Bridge

The Tacony – Palmyra Bridge is a road bridge over the Delaware River between the northeastern Tacony district of Philadelphia in Pennsylvania and Palmyra in New Jersey . It connects Pennsylvania Route 73 with New Jersey Route 73 and has two toll lanes for traffic in the direction of Pennsylvania and one toll-free in the direction of New Jersey. The bridge is operated by the Burlington County Bridge Commission . In 2015, an average of 27,400 vehicles used the bridge every day.

history

Construction of the bridge piers in the Delaware River in 1928, below a line of waiting cars in front of the landing stage of the former ferry.

On the site of today's bridge, the Tacony – Palmyra Ferry Company operated two ferries between 1922 and 1929 , with a passenger volume of over a million in 1925, with more than 400,000 cars being carried by the ferries. The economic success and the development of the surrounding urban areas associated with the ferry connection made the construction of a bridge profitable and prompted the operators to found the Tacony-Palmyra Bridge Company in 1926 .

The engineering office Modjeski, Masters & Chase , of the bridge construction engineer Ralph Modjeski , was engaged for the design and implementation ; the consulting architect was Paul Philippe Cret . Modjeski chose a truss bridge with a central segment designed as a tied arch bridge , two truss continuous girders in pony / half-through construction and a bascule bridge in a similar design that connects to the central arch bridge on the New Jersy side. After the first test drillings in the river bed in 1926 and government approval in 1927, the Dravo Contracting Company began building the access roads, abutments and bridge piers in the following year , and the American Bridge Company began manufacturing and erecting the trusses. The bridge was opened on August 14, 1929 and the ferry service was later discontinued.

In the first year, 3,500 vehicles were used daily, but the value had doubled within five years and after almost 90 years of operation it increased to over 27,000 vehicles in 2015. In 1948 the bridge became the property of the Burlington County Bridge Commission . In 1977 the former four lanes were converted into three wider ones (two towards Pennsylvania and one towards New Jersey). Between 1996 and 1998 the entire roadway, in 2006 the steel plates of the bascule bridge and in 2007 the bearings were renewed.

description

Bascule bridge to the right of the tied arch bridge on the New Jersey side.

The main bridge with a total length of 708 m is divided into four segments. The central tied arch bridge has a length of 164 m and a height of 36 m. This is followed on the New Jersey side by the two- wing roller bascule bridge with a length of 79 m. The end is formed by a continuous truss girder of 225 m length, which are each divided into three segments of 75 m between the pillars and have a height of 7.0 m, but expand by 2.9 m downwards at the pillars. The accesses are designed as girder bridges, with a length of 215 m on the Tacony side and 192 m on the Palmyra side and spans around 17 m.

The foundations of the nine pillars of the main bridge in the Delaware River were made of reinforced concrete on bedrock at a depth of 10-18 m using cofferdams , with the exception of the central pillars supporting the arch and bascule bridge, where caissons were used. In places with insufficient strength of the bedrock, steel pipes filled with concrete were also driven into the depths. The pillars have granite curb stones and some of them are provided with ship deflectors in front. The pillars of the bascule bridge also have cantilevered towers for the operating personnel on both sides. The 16 m wide bridge runs parabolically up to a clearance height of 19.6 m in the center of the arched segment.

literature

Web links

Commons : Tacony – Palmyra Bridge  - collection of pictures, videos and audio files

Individual evidence

  1. ↑ a b Tacony-Palmyra Bridge. ( Memento of April 14, 2013 in the web archive archive.today ) Burlington County Bridge Commission.
  2. ↑ a b "State of the Bridge," from 2013 to 2015.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Burlington County Bridge Commission, p. 23. Retrieved July 30, 2017.@1@ 2Template: Dead Link / www.bcbridges.org  
  3. ↑ Harry C. Silcox: Remembering Northeast Philadelphia. Arcadia Publishing, 2009, ISBN 978-1596297760 (eBook without page indication, chapter The Tacony – Palmyra Ferry , 1922–1929).
  4. ↑ Modjeski, Masters & Chase, engineers: Tacony-Palmyra bridge over the Delaware river between Philadelphia, Penna. & Palmyra, NJ Tacony-Palmyra Bridge Co., Philadelphia 1931, pp. 5 f.
  5. ↑ a b c Tacony-Palmyra Bridge - Historic Overview. PhillyRoads.com from Eastern Roads, Inc. Retrieved July 30, 2017.
  6. ↑ Modjeski, Masters & Chase, engineers: Tacony-Palmyra bridge over the Delaware river between Philadelphia, Penna. & Palmyra, NJ Tacony-Palmyra Bridge Co., Philadelphia 1931, pp. 21-22, et al. 59.
  7. ↑ Modjeski, Masters & Chase, engineers: Tacony-Palmyra bridge over the Delaware river between Philadelphia, Penna. & Palmyra, NJ Tacony-Palmyra Bridge Co., Philadelphia 1931, pp. 8-10.
Upstream
Burlington-Bristol Bridge 		Crossing the Delaware River Downriver
Betsy Ross Bridge