Klein and Hoffman, Inc.
Structural and Restoration Engineers
Pier Construction and Rehabilitation
Bulkhead Replacement
Cofferdam Repair
Headworks and Outfall Structures
Fendering Systems
Utility Supports
Turning Dolphins
Barge Docking Facilities
Canal Restoration
Marine Hardware
Marine/Waterfront Structures
Condition Surveys
Structural Investigations
Structural Analysis
Design and Rehabilitation
Marine Engineering
Construction Monitoring
KLEIN AND HOFFMAN, INC.
Marine/Waterfront Structures
With offices in three port cities, Klein and Hoffman (K&H) has applied its structural engineering expertise
on marine/waterfront projects ranging from pleasure craft marinas to over-water solid waste transfer
stations. K&H has successfully served both public and private clients requiring structural and marine
engineering services for the design, rehabilitation and construction of marine/waterfront structures on a
wide variety of assignments over the past 35 years. K&H's marine/waterfront services range from
condition surveys, structural investigations and evaluations to structural analysis, design, rehabilitation
and construction support services.
Relevant Experience
Conversion of Eight Marine Transfer Stations for Marine Export
of Solid Waste
New York, New York
The New York City Department of Sanitation (DSNY) has historically used a
network of eight marine transfer stations as destinations where Department
collection vehicles deliver municipal solid waste. These water-based transfer
stations are unique to New York City and were developed to provide efficient
waterborne transport of solid waste. K&H is serving as lead structural
engineer to prime consultant Greeley and Hansen LLC on an innovative $680
million, marine export program for the DSNY to convert these eight marine
transfer stations into containerized solid waste processing facilities. The
project features the demolition of the existing transfer stations, construction of
five three-story, pile-supported, off-shore facilities protected by dolphins and
fendering systems for barge docking and mooring as well as construction and
rehabilitation of appurtenant piers, access ramps and bulkheads for three
other transfer stations.
Rehabilitation of West 59th Street Marine Transfer Station
Bronx, New York
The work consisted of complete rehabilitation and renovation of a shipping
terminal facility originally constructed in 1901. K&H was responsible for the
inspection of substructure and superstructure elements, structural analysis and
recommendations for rehabilitation of the facility to meet the requirements of
heavier, newer refuse collection vehicles, as well as future needs. K&H
provided structural engineering and design, construction documents,
construction cost estimates, permitting assistance, and engineering services
during construction.
Emergency Reconstruction and Facility Inspection Program
South Bronx Marine Transfer Station
Bronx, New York
K&H conducted a structural condition survey and underwater inspection program to
determine the rehabilitation needs of the water-based facility. The evaluation
revealed that the facility was at an advanced stage of deterioration and that a
complete rehabilitation was neither economically nor technically feasible. Due to
the severely deteriorated condition of the steel foundation H-piles, total replacement
of the MTS structure was recommended. To prevent an unplanned shut-down of
this pivotal facility, DSNY implemented an emergency reconstruction contract.
Work included restoration of the access ramp structures, repairs to building columns
and replacement of a deteriorated fender pier. K&H provided design and
construction support services for the work.
Structural Design of Dock Extension for Navy Pier
Chicago, Illinois
K&H served as project structural engineer to prime consultant, Johnson, Johnson
& Roy, for the redevelopment and expansion of Chicago’s Navy Pier. Work
focused on the design and construction of a new 2,500 ft. by 50 ft. dock platform on
the north side. The existing south pier received a 100 ft. by 80 ft. extension to form
an overlook bay at the east end. The deck consisted of a reinforced concrete deck
placed over precast slab units and cast-in-place pile caps. Steel piles over 90 ft.
long, filled with concrete, support the pile caps. A challenging aspect of the project
was the design of a concrete deck that would stand up to the harsh environmental
conditions experienced along Lake Michigan.
Dock Facility - Columbia Yacht Club
Chicago, Illinois
The Columbia Yacht Club called upon one of its members, a local architect,
to design a new pier and docking facility for the club when its previous pier
was demolished due to the straightening of Chicago’s Lake Shore Drive “S”
curve, Highway US41. K&H utilized its extensive waterfront experience to
develop a cost-effective design for the elongated pier structure to
accommodate small pleasure boats that ply Lake Michigan. The principal
structural problem encountered was the need for a framing system that
would resist lateral wave forces. A series of structural steel frames
comprised of battered and vertical steel H-piles driven deep into the lake
bottom and steel framing beams provided the solution. The frames in the
articulated portion of the pier offer lateral support for the sheet piling
bulkhead wall.
Rehabilitation of West 135th Street Marine Transfer Station
New York, New York
Constructed in 1954, the two-level, "E"-shaped, steel-framed main structure
sits above three timber piers. The project featured extensive replacement and
remedial repair of steel H-piles, timber piles, and steel and reinforced concrete
structural components. A new exterior facade was added, along with a new
roof structure set at a higher elevation. K&H was responsible for supervision
of an underwater survey and inspection, survey and inspection of the
superstructure, structural analysis and design, contract plans, specifications,
cost estimates, permitting assistance, and engineering services during
construction. A temporary trestle bridge was installed to allow the station to
remain in service throughout construction.
Barge Docking Facilities at Delaware and Schuylkill Rivers
Philadelphia, Pennsylvania
The Philadelphia Water Department initiated an innovative approach for the storage,
treatment and disposal of digested sludge generated by its Northeast Water Pollution
Control Plant. As a cost-effective alternative to constructing new sludge handling
facilities at the Northeast Plant, the Water Department elected to build a centralized
Sludge Distribution and Processing Center at its Southwest Water Pollution Control
Plant. Marine terminals were constructed near each plant to facilitate the transfer of
sludge by barge between the two plants. The 290-ft. long facilities each consist of
walkways, a loading platform and six berthing and turning dolphins. K&H’s scope of
services as structural subconsultant to prime consultant, Greeley and Hansen LLC,
included inspection and survey of existing piers, preparation of contract plans,
specifications, construction cost opinions, and engineering services during construction.
Rehabilitation of Pier 97- Barge Storage and Truck Parking Facility
New York, New York
Originally constructed in the early 1900's, Pier 97 extends 750 ft. into the Hudson
River and historically served as a cargo and passenger ship terminal. Plans to
renovate the structure called for anchorage of barges up to 300 ft. in length and
parking for Department of Sanitation solid waste collection vehicles. Due to
advanced deterioration of the structural elements and column foundations, the
superstructure above the pier deck level was demolished. K&H was responsible for
supervision of an underwater survey and inspection, inspection of superstructure,
structural analysis and design, and preparation of construction documents and
construction cost opinions. Additional engineering and construction monitoring
services were provided during construction due to changed field conditions.
Stabilization and Partial Restoration of Humboldt Park Boat House
Chicago, Illinois
Constructed in 1907, in the Prairie School style of architecture, the Humboldt Park Boat
House was designated a Chicago Landmark building in 1996. In 1998, the Chicago Park
District began a three-phase restoration effort that looked at every element of the
building from the foundation to the roof. To ensure the work was historically accurate,
expert craftsmen were hired. K&H provided structural engineering services for the
restoration and restructuring of this landmark facility. K&H’s restoration design also
included removal and replacement of the existing attic floor and mezzanine with new
steel framing and concrete on metal deck. K&H provided additiona l structural work
associated with the rehabilitation of existing exterior decorative piers and provided
engineering services during construction.
Riverside Parks - Investigation of Dock Level and River Wall
Chicago, Illinois
Concerns about potential safety hazards and the structural condition of the river
walls and walkways along the southside of the Chicago River from Michigan
Avenue west to Lake Street prompted an engineering evaluation.
K&H
conducted a visual investigation to identify defects and deficiencies and
recommend both urgent and long-term corrective measures. Moderate to
severe deterioration was noted along the exterior side of the dock walls at
various locations along the entire length of the survey area. Outward movement
of the dock walls was also observed at several locations and confirmed by a
survey. K&H developed a phased rehabilitation program that insured public
safety, repaired structural deficiencies, improved the appearance of the public
walkways and conformed to budgetary constraints.
Nature Walk - Newtown Creek Water Pollution Control Plant
New York, New York
A nature walk was integrated into the design of an extensive plant upgrade at the
Newtown Creek Water Pollution Control Plant, in order to beautify the
appearance of the plant along the waterfront. The nature walk also allows the
general public controlled access to view the mammoth scale of the plant from a
protected overlook while enjoying the natural beauty of the waterfront and
landscaping along the walk. A steel sheet piling bulkhead is constructed along
both sides of the plant to protect the shoreline along Newtown and Whale Creeks,
and to allow construction of the nature walk above tide level. K&H is providing
structural engineering design and construction services for the nature walk which
extends 1,530 feet over land and an additional 250 feet into Whale Creek. K&H’s
scope of work includes structural and foundation engineering and design,
preparation of contract drawings and specifications, and engineering services
during construction.
KLEIN AND HOFFMAN, INC.
CHICAGO DETROIT NEW YORK PHILADELPHIA