Rt 72 RR Bridge

bobpbx

Piney
Staff member
Oct 25, 2002
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Pines; Bamber area
I was out there last week, and it struck me that I never noticed it before, but that bridge was built with the future in mind. It is twice the length it needs to be, the western side was made to accomadate a 4 lane highway.

Agreed?

I also for the first time noticed the date of construction chiseled into the abutment.
 

Teegate

Administrator
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Sep 17, 2002
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It is also on the bridge.

716.JPG
 
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Teegate

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Look at the bridge on HistoricAerials and you can see how the traffic went around it during construction, and also construction vehicles. Pretty interesting.

Guy
 
Bob and Guy:

In April 1929, the New Jersey State Legislature approved a bill that expanded the existing state highway network. The lawmakers included State Route S-40 in the act, which would extend from Manahawkin to a point in Burlington County along State Route 40. The “S” in “S-40” stood for “Spur” as the new road would be a spur of Route 40 (now Route 70). The following year, the State Highway Department completed a ribbon of concrete in Ocean County between the Burlington County Line and Route 9.

Planning for the Burlington County section proceeded apace and state highway engineers soon determined to connect the new roadway with Route 40 near the State Colony for the Feeble-Minded at Four Mile. Financing issues arose during the Great Depression and the state obtained federal funds to complete the S-40 construction project in Burlington County. In May 1936, the State Highway Department advertised for proposals to construct an “underpass” at the point where the Central Railroad of New Jersey crossed S-40 in Woodland Township, Burlington County:

Bridge_Advertisement.jpg

The State Highway Department wasted no time in awarding the construction contract to S.J. Groves & Sons Company of Ridgefield, New Jersey, based on a bid of $52,833. In keeping with the requirements of federal funding for this grade-crossing elimination project, the contractor would recruit laborers from the rolls of the National Reemployment Service Center in Mount Holly. The New Jersey State Highway Department reported receiving a total of $128,300 in federal aid to complete the S-40 construction project in Burlington County.

During construction, a 32-year-old CNJ electrician named James Green received a lethal dose of electricity after he came in contact with the high-tension wires passing down the railroad right-of-way. The burns affected Green’s left hand, arm, neck, and left leg. Other railroad workers carried the Dunellen native’s body to the nearby State Colony hospital for initial treatment. An ambulance then arrived to transport the dying man to Memorial Hospital in Mount Holly, where he succumbed to his burns after lapsing into unconsciousness. [I supposed we will now read stories about the bridge over Route 72 being haunted!]

In 1953, the New Jersey State Highway Department undertook a grand renumbering of its state highway routes and S-40 became State Route 72. The CNJ railroad bridge or “underpass” on Route 72 remains as a testament to the State Highway Department’s ardent desire to eliminate as many grade crossings as possible throughout the state as the popularity of automobiles increased. This is the rationale that drove the state to broker the merger of the Pennsylvania and Reading lines through South Jersey to form the Pennsylvania-Reading Seashore Lines 1933, thereby eliminating duplicative trackage and the numerous attendant grade crossings.

Best regards,
Jerseyman
 
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Gibby

Piney
Apr 4, 2011
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Trenton
If you look on the eastern abutment on the side facing towards the traffic circle, you will see a USGS benchmark. It is on top of it not at the base. Did you notice the grain pattern of the boards that were used to construct the forms in the areas sheltered from the weather? They are still visible after all these years.
 

bobpbx

Piney
Staff member
Oct 25, 2002
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Pines; Bamber area
Thanks Jerseyman. That was very interesting reading. I'm sure that those burns were pure hell. Poor guy.

Gibby, I should have looked closer. That bridge is pretty high up when you stand on the edge at the concrete stoop; its a bit unsettling.
 

Gibby

Piney
Apr 4, 2011
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Trenton
Thanks Jerseyman. That was very interesting reading. I'm sure that those burns were pure hell. Poor guy.

Gibby, I should have looked closer. That bridge is pretty high up when you stand on the edge at the concrete stoop; its a bit unsettling.

I have a many pictures of the bridge. I backed my entire library of photographs onto cds and removed them from my computer. Do you think I can find them now? When I find them I will post a few.:mad:
 

Gibby

Piney
Apr 4, 2011
1,644
442
Trenton
usgs.jpg


This is the survey marker on the abutment. The marks are from someone trying to remove it by beating at it with something with an edge.
 

Gibby

Piney
Apr 4, 2011
1,644
442
Trenton
BRIDGE.jpg


You can see how the upper part of it is constructed and an overall idea of the shape the bridge is in, in this photo.
 
Gibby:

The CNJ bridge is a continuous steel pony-plate, through girder span, likely fabricated at the American Bridge Company’s Trenton Shop (now Kat-Man-Du occupies the last remaining building). As originally constructed, no concrete was poured on the inside of the girders as shown in your photograph above. The CNJ added this concrete much later—probably in the early 1960s—to strengthen the span in an effort to counteract larger freight car sizes and the dramatically increase in tonnage coming out of the sandpits in South Jersey. The rather late installation of the concrete explains its rough appearance, created without the benefit of a finishing trowel.

Regarding the wood grain visible on the concrete, this was a common occurrence. Form construction for concrete would generally consist of boards from various types of conifer trees—white (preferred) or yellow pine, spruce, Oregon pine and fir. The curing concrete generated a great deal of heat and would absorb moisture of any kind, including from the form boards. This resulted in the concrete taking on all of the grain from the wood as the moisture content of the board transferred to the concrete. Once boards came on contact with concrete, it had no construction value. It could be reused for concrete forming in a pinch, but not for any type of wood building project.

Best regards,
Jerseyman
 
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Gibby

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Thanks Jerseyman.:) I always enjoy your indepth writings. The American Bridge Company had several buildings in Trenton. The area along the water front including Kat-Man-Du and the Trenton Stadium, plus the spot were the Trenton Arena is now located. I can remember huge spools of braided wire and cable sitting in the yard of what is now the arena parking lot.. The location is Broad Street and Hamilton Avenue. In no form what so ever, does it resemble what it once was. It is bisected by Route 129 and one off ramp. There are several buildings still left standing across Hamilton Avenue in the furthest parking lot. The front side of the arena is actually the original wall of what was a huge brick building. That building was easily several acres in size! (After a quick call to my father, Kat-Man-Du was a warehouse from what he recalls) Roebling still has many buildings standing along South Clinton Avenue. Some are converted, while others stand empty. The Roebling Machine Shop is among the nicest.
 

Gibby

Piney
Apr 4, 2011
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442
Trenton
After another phone call, it seems that the current location of the Trenton Arena was actually CF&I or Colorado Fuel and Iron which was part of Roebling. Simply, American Bridge made the girders and CF&I made the cables. Thanks again Jerseyman, for sparking my interest.
 

Gibby

Piney
Apr 4, 2011
1,644
442
Trenton
I'm using the snow as an excuse for not seeing the other.:) Thanks, Teegate, I will find it next time I am there. Is there a reason for the lettering on one being raised while the other is stamped?
 
Gibby:

Thanks for posting your correction as I knew the Trenton Arena contains a wall from the Roebling plant. The American Bridge Company took over the old iron works of Cooper & Hewitt at the turn of the twentieth century. The Roebling plant first opened in Trenton in 1848 and remained in the Roebling family until 1953, when Colorado Fuel & Iron purchased full ownership of the company, its manufacturing facilities, and all of its subsidiaries. The Trenton plant closed down in 1973-74 after CF&I entered bankruptcy for the last time.

Best regards,
Jerseyman
 

Teegate

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Sep 17, 2002
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I'm using the snow as an excuse for not seeing the other.:) Thanks, Teegate, I will find it next time I am there. Is there a reason for the lettering on one being raised while the other is stamped?

I don't think either one is raised.

Guy
 

Gibby

Piney
Apr 4, 2011
1,644
442
Trenton
The first picture in your link of the 3L1 appears to be concave with raised lettering while the other, 3G1, is convex with pressed or stamped lettering.
 

Teegate

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Sep 17, 2002
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Maybe so. I will check it out the next time I pass by.

Guy
 
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