SPECIAL STRUCTURES
LGM has been involved in structural analysis and design of various special structures, including large diameter water tanks, special water supply tunnels, slue gates, catenaries, louvers supporting structures, and etc.
Engineering of these structures often depends upon sophisticated structural analysis and nontraditional design.
The firm’s project experience includes:
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Roof Replacement for Large Diameter Water Tanks in Queens, New York
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Water Tunnels for Ultraviolet Disinfection Facility in Valhalla, New York
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Replacement of Sluice Gates and Slides at the Kensico and Muscoot Dams, and etc.
 Kensico and Muscoot Dams |
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 LINCOLN TUNNEL VENTILATION BUILDING |
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 LINCOLN TUNNEL VENTILATION BUILDING |
KENISCO AND MUSCOOT DAMS
LINCOLN TUNNEL VENTILATION BUILDING
Rehabilitation of Kensico and Muscoot Dams, Valhalla, NY
LGM provided structural engineering services for rehabilitation of slue gate chamber actuators at Kensico and Muscoot dams
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Lincoln Tunnel New Jersey Ventilation Building Exterior Renovation and Roof Replacement for The Port Authority of NY and NJ.
LGM provided structural engineering services for the project, including design of a supporting system for new ventilation louvers and other miscellaneous tasks.
 Water Tanks |
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 Diameter Water Tanks |
Roof Replacement for 110ft and 150ft Diameter Water Tanks, South Ozone Park,
Queens, New York, NYC DEP
The project scope consisted of design of wind girders, columns
stability analysis of the existing tanks during various construction phases
WATER TANKS
Catskill/Delaware Ultraviolet Light Disinfection Facility, Valhalla, NY, NYC DEP
LGM performed design of three cast-in-place concrete water tunnels for the new ultraviolet light disinfection facility (Photo by NYC DEP
 ULTRAVIOLET LIGHT DISINFECTION FACIL |
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ULTRAVIOLET LIGHT DISINFECTION FACILITY
Upgrade Ventilation System and Recess Vehicle Lifts at East Ramp Garage at the Triborough Bridge, MTA Bridges and Tunnels
LGM performed structural analysis and design of special seismic restrainers for a new exhaust ventilation system.
 Triborough Bridge |
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TRIBOROUGH BRIDGE