Global Maritime Directory

The maritime industry, company by company

Heger Dry Dock Engineering & Design Enhanced

Graving Dock Caisson Gate Design

Design of replacement caisson gates and engineering support for graving (basin) drydocks, including naval shipyard gate replacements and basin dock recertification.

Service page on Heger Dry Dock's site

Description

Heger Dry Dock provides complete design drawings and specifications for graving drydock caisson gates, along with engineering support for basin docks at naval and commercial shipyards.

Projects listed

  • Replacement caisson gates for Portsmouth Naval Shipyard Dock #2 and Dock #3, and the Portsmouth Naval Shipyard Dry Dock No. 1 expansion
  • Replacement caisson gates for Norfolk Naval Shipyard Graving Docks #1 and #3
  • Charlestown Navy Yard Graving Dock #1 and NASSCO San Diego Dry Dock No. 1 replacement gates
  • Replacement Foster gates for Massachusetts Heavy Industries Graving Docks #6 and #7
  • Assistance to Electric Boat with the rebuilding and recertification of Basin Dock #3 and the drydocking of a caisson gate

Applications

  • New and replacement caisson gates for graving docks
  • Basin dock rebuilding and recertification support

More from Heger Dry Dock

Engineering & Design

Vessel Handling Trolley System Design

Design of vessel handling trolley systems for floating and graving drydocks, including standard non-mechanical trolleys and hauling and centering trolleys with winches.

Engineering & Design

Floating Dry Dock Design

Complete design drawings, specifications and operating manuals for steel floating drydocks from 1,000 LT to 80,000 LT capacity, to ABS and MIL-STD 1625D(SH) requirements.

Engineering & Design

Vessel Transfer and Launch System Design

Design of vessel transfer-launch systems for floating docks and shore, launchway certification and launch engineering for new builds, with transfer systems up to 12,000 tons.

Inspection, Survey & Testing

Drydock Inspections & Certifications

Material condition inspections and certifications of floating docks, marine railways and basin docks under NAVSEA MIL-STD 1625, UFC and USCG SFLC Standard Spec 8634.

Engineering & Design

Floating Dock Mooring Design

Fixed mooring systems for floating drydocks in Tee or Quick-Disconnect configurations, designed for mooring point loads of 250 to 1,000 tons; over 40 systems designed.

Training

Dockmaster Training Courses & Seminars

SNAME accredited Dockmaster's Training seminars and custom courses, delivered on site or remotely via Teams/Zoom, plus a free Heger Dockmaster Training Manual.

Consulting

Shipyard Planning & Dock Selection

Pier and wharf layout for drydock placement and selection of drydock type and size to suit site restrictions, access needs, laydown areas and the vessels to be serviced.

Consulting

Accident Investigations & Expert Testimony

Subject matter expertise for floating and graving drydock issues: accident root cause analysis, emergency repair design, salvage assistance, damaged-dock procedures and expert testimony.

All services of Heger Dry Dock →