The Castle Group

The Castle Group The Castle Group specializes in marine engineering and construction. For more information visit us on Those companies are:
W.J. Our History
Founded by William J.

Underwater Inspection, Design, and Construction
The Castle Group is as innovative in our corporate structure as we are in our designs. We consist of three companies offering: Unparalleled innovation, Cost-effectiveness & Timeliness. Castle & Associates
Hydro-Marine Construction
Simplified Bridge Systems
The result of working with us is a marine engineering firm informed by real-world dynamics, an

d a marine construction company that can draw on the expertise of seasoned engineers. The Castle Group are marine structural engineers and contractors for operators of and consultants to entities in need of underwater inspection, design, and construction services. Our dual expertise of superior design/build services conveniently provides our customers with seamless, innovative, cost-effective solutions. Castle in 1983, W. J. Castle & Associates has been known for its marine engineering expertise. We employ Engineer-Divers who are proficient at underwater diagnostics and reporting, with the ability to develop repair designs as needed. Hydro-Marine, founded in 1997, is the construction division of The Castle Group and is staffed with highly trained, certified commercial divers (Association of Diving Contractors international / ADCI). Hydro-Marine is a certified Woman Business Enterprise (WBE) in multiple states. Simplified Bridge Systems was established in 2001, and since then two of our bridges have won awards from NJDOT for Quality and Initiative. Services Overview
W. Castle & Associates
Structural / Marine Engineering
Construction Inspection & Management
Underwater Inspection Services
Specialty & Building Designs
Hydrographic / Fathometric Surveys
Non-Destructive Testing
Side Scan Sonar Imaging
Hydro-Marine Construction
Bulkhead and Pier Rehabilitation & Construction
Pile Jacketing & Repairs
Submarine Power Cable Recovery and Repair
Helical Anchor Installation
Underwater Construction & Repair
Underwater Debris Removal
Repairs to Marine Structures
Design / Build
Specialty
Simplified Bridge Systems
Design of Customized Bridges
Demolition of existing structures
Site preparation
Design & fabrication
Delivery & installation
New foundations (if required)
Finish roadway approaches
Contact The Castle Group
The Castle Group
(p) 800.644.4713
(f) 609.261.3422
[email protected]

Wishing you and your family all the peace and joy this holiday season. Happy Holidays!
12/25/2023

Wishing you and your family all the peace and joy this holiday season. Happy Holidays!

Our construction inspection and management services benefit from the 25+ years we’ve been in business, and our expertise...
12/21/2023

Our construction inspection and management services benefit from the 25+ years we’ve been in business, and our expertise will save you time and money. https://divingconstruction.com/services/

We are Certified Helical Anchor Installers. Helical Anchor Piles can be used in various situations where accessibility i...
12/19/2023

We are Certified Helical Anchor Installers. Helical Anchor Piles can be used in various situations where accessibility is an issue or soil integrity is a problem. https://divingconstruction.com/services/

We provide a staffed and fully equipped barge capable of locating, uncovering, and lifting cable from under the channel ...
12/14/2023

We provide a staffed and fully equipped barge capable of locating, uncovering, and lifting cable from under the channel bottom to the barge surface. This enables the most cost-effective way for utilities to perform repairs. We then set and rebury the cable to the required depth once repairs have occurred. https://divingconstruction.com/services/

Bulkhead + Pier Rehabilitation + Construction: From repairs to replacements, we have extensive experience working on lar...
12/12/2023

Bulkhead + Pier Rehabilitation + Construction: From repairs to replacements, we have extensive experience working on large-scale public and smaller projects for private owners. https://divingconstruction.com/services/

The Castle Group offers comprehensive and cost-effective solutions from underwater design and analysis to bridge constru...
12/07/2023

The Castle Group offers comprehensive and cost-effective solutions from underwater design and analysis to bridge construction to repair and consultation. https://www.wjcastlegroup.com/

We are a marine engineering firm informed by real-world dynamics and a marine construction company that can draw on the ...
12/05/2023

We are a marine engineering firm informed by real-world dynamics and a marine construction company that can draw on the expertise of seasoned engineers. We're ready to contribute to your next project based in Philadelphia, PA, but we also service the Northeast and the entire United States. https://www.wjcastlegroup.com/

Bulkhead and Pier Rehabilitation and Construction: From repairs to replacements, we have extensive experience working on...
11/30/2023

Bulkhead and Pier Rehabilitation and Construction: From repairs to replacements, we have extensive experience working on large-scale public and smaller projects for private owners. There is no “one-size-fits-all” approach. https://divingconstruction.com/

The Castle Group combines the knowledge and design skills of a leading-edge marine engineering company with the practica...
11/28/2023

The Castle Group combines the knowledge and design skills of a leading-edge marine engineering company with the practical know-how of an underwater contractor. The Castle Group offers comprehensive and cost-effective solutions, from underwater design and analysis to bridge construction to repair and consultation. https://www.wjcastlegroup.com/

From our family to yours, we wish you a memory-rich Happy Thanksgiving!
11/23/2023

From our family to yours, we wish you a memory-rich Happy Thanksgiving!

Address

Hainesport, NJ
08036

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+18006444713

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Meet The Castle Group

Underwater Inspection, Design, and Construction

The Castle Group is as innovative in our corporate structure as we are in our designs. We consist of three companies offering: Unparalleled innovation, Cost-effectiveness & Timeliness.

Those companies are:


  • W.J. Castle & Associates