 ROEBLING
BRIDGE REPLACEMENT
Design/Build
The abandoned steel railroad bridge at the Roebling Steel Plant
crossing Crafts Creek in Roebling, New Jersey needed to be converted
into a roadway bridge able to support construction vehicles up to
110,000 lbs. W.J. Castle P.E. & Associates P.C. was
retained by WRS Infrastructure & Environment, Inc. in October
2008 to perform an in-depth inspection of the existing bridge. Once
the analysis was complete, Castle designed
the new bridge utilizing the existing main steel beams and the concrete
substructure with modifications and repairs. Hydro-Marine
Construction Co., Inc. performed the actual
construction of the bridge.
Following cleaning of the existing beams, deteriorated portions
of the beams were reinforced by attaching steel bent plates (6 foot
long) to both sides at each end. Existing bearing plates were also
deteriorated and replaced to accommodate the new spacing of the steel
beams. In order to save labor cost, a single continuous bearing
plate was used at each abutment. New stringers, diaphragms, deck
pans, and edge plates were installed as well as new steel guiderail
and posts. The composite reinforced concrete bridge deck was built
utilizing angle sections attached to the main steel beams. The concrete
deck was poured in place in less than one day.
Hydro-Marine performed
all of the construction aspects of the project including all repairs,
removal of the existing structure, and installation of the new bridge
structure. Removal of the existing structure began in November 2008,
the deck was poured the first week in January 2009, and the bridge
was open to traffic by January 23, 2009.
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 Design & Installation
of Main Bulkhead/Wave
Breaker @ Canal Point Marina
Bulkhead Design/Build
Location: Point Pleasant, New Jersey
W.J Castle, P.E. & Associates, P.C. was retained by the Canal
Point Marina to design/build a new bulkhead at their facilities. The
original bulkhead was undermined and deteriorated and no longer functioning
as designed.
Castle’s repair design included installation of new composite
sheeting in front of the existing timber bulkhead and installation
of 21 additional 12” diameter timber piles to be placed between
the existing deteriorated piles. However, the existing piles and
walers were also utilized in the construction of the new bulkhead.
Upon completion of design and details, Hydro-Marine Construction
Co., Inc. was retained to perform the actual construction of the
new bulkhead. Approximately 290’ of new composite sheeting
was installed with an additional 20 L.F. along the walkway.
Twenty-one new timber piles were installed along the bulkhead and
three additional 10” diameter timber piles were installed near
the walkway as per the client’s specification.
All work was completed by October 2008 at a cost of approximately
$400,000.00.
 GIRL
SCOUT PEDESTRIAN BRIDGE
Design/Build
Location: Girl Scouts of Eastern Pennsylvania – Camp Laughing Waters
Montgomery County, Pennsylvania
W.J. Castle, P.E. & Associates, P.C. & Hydro-Marine
Construction Co., Inc. were retained to design and construct
a new 140’-0” long pedestrian bridge for a Girl Scout
camp located in Gilbertsville, PA. The client was redesigning the
camp site to include a new route for pedestrians to cross Swamp
Creek. W.J. Castle, P.E. & Associates, P.C., was
responsible for all engineering and construction management of
the bridge and foundations. This 140’-0” steel bridge
was provided by “Eagle Bridge” of Canada and pre-fabricated
into two modules and shipped to the site, ready for installation. The
bridge is 8 feet wide and was designed for both pedestrian (85#/S.F.)
and small vehicle (10, 000 lbs). The total weight of the bridge
is approximately
60,000 lbs.
Hydro-Marine Construction Co., Inc. was
responsible for the construction from the start of the project to
final installation. A foundation system using “Chance” Helical
Piles was used in order to eliminate large spread footings. The construction
of the bridge was started in April of 2008 and completed by June
2008 at a cost of $421,000.00.
In March 2009 this project won
the ACEC Distinguished Award for Pedestrian Bridge Design/Build.
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