Prop and Thruster Scour Protection Solutions

Permanent Scour Protection

Use HYDROTEX fabric formworks to cast a concrete scour protection system at your port or harbor. Save thousands in installation and machinery costs.

Get a project estimate today:



Permanent Scour Protection (Prop or Thruster Scour)

Use HYDROTEX fabric formworks to cast a concrete scour protection system at your port or harbor. Save thousands in installation and machinery costs.

Get a project estimate today:



Resolve underwater scour issues with HYDROTEX fabric-formed concrete scour protection mattresses.

The best solution for localized scour underwater and on land, HYDROTEX provides superior protection against harsh hydraulic forces under the sea.

How? The geosynthetic panels are laid out underwater at berths, ports, and harbors, then pumped with fine aggregate concrete. The result is a fabric-formed concrete mat that conforms to the scour depth around pier piles, on embankments, and under any marine structure.

How is HYDROTEX used to protect against underwater prop and thruster scour?

The Problem

Ports are prime locations for scour, especially at the base of piers and quay walls. Due to natural waves and the movement created by the props and thrusters of ships coming into the ports, the embankment or subgrade material will scour and potentially compromise existing infrastructure.

The Solution: HYDROTEX Fabric Forms for the In-Situ Casting of Concrete

Effectively prevent critical damage to your port by installing a HYDROTEX fabric-formed concrete mattress that will remediate or fill the scour hole as it happens. When a ship pulls into the port, the water will inevitably move, but the concrete mattress will prevent the sand and sediment from eroding.

Best HYDROTEX Fabric Forms for Casting an Underwater Scour Protection System

Articulating Block Concrete Mat on Slope

HYDROTEX® Articulating Block



HYDROTEX Uniform Section

HYDROTEX® Uniform Section



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HYDROTEX: The Best Prop and Thruster Scour Protection System

When a ship pulls away from a port, the land underwater is subject to localized scour. Protect underwater embankments from propeller action by armoring them with a HYDROTEX fabric-formed concrete mattress custom-manufactured to the embankment. The mattress will ensure that soil movements remain to a minimum and that the underwater land isn’t altered by the passing of ships.

Prop scour protection is typically needed for:

Ship at port

Related Solutions

HYDROTEX® Uniform Section

Uniform Section (US) Concrete Linings

Uniform Section (US) Concrete Linings


Uniform Section (US) Concrete Linings are similar to traditional concrete slope paving.  They create a solid, high-quality concrete lining with a relatively low hydraulic resistance and uniform cross-section.  Uniform Section linings are used to reduce the infiltration or exfiltration of aggressive waste and chemical fluids into or out of open channels and basins.  They are also used to reduce exfiltration in arid regions where open channels and basins require watertight linings.

Uniform Section Concrete Linings are resistant to leachate and most chemicals.  They protect geosynthetic liners from mechanical damage, exposure to UV light, and freeze-thaw cycles.  These self-supporting, high-strength linings permit construction on steep side slopes and replace the conventional use of clay or sand as liner protection. Placement of the forms and concrete filling can be performed without the use of equipment on the liner.  The tensile strength and abrasion resistance of the fabric protect the liner from the pumped concrete.

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HYDROTEX® Articulating Block

Articulating Block (AB) Concrete Linings

Articulating Block (AB) Concrete Linings


Articulating Block Mats form cable-reinforced concrete block mattresses that resist erosive forces. They are often constructed where a revetment is exposed to frontal attack by wave action.

AB Mats are typically used to protect coastlines, canals, rivers, lakes, reservoirs, underwater pipelines, bridge piers, and other marine structures from propeller wash, ship wakes, wind waves, currents, and high velocity flows. They are also used in environmental construction for landfill caps, down chutes, and collector channels.

The AB fabric form consists of a series of compartments linked by an interwoven perimeter. Grout ducts interconnect the compartments, and high-strength revetment cables are installed between and through the compartments and grout ducts.

Once filled, the AB Mats become a mattress of pillow-shaped, rectangular concrete blocks. The interwoven perimeters between the blocks serve as hinges to permit articulation. The cables remain embedded in the concrete blocks to link the blocks together and facilitate articulation.

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Submit a Request for an Articulating Block Specification

We’ll get back to you within 1-2 business days. All specifications are available in both nylon and polyester configurations.

Submit a request for a technical specification

We’ll get back to you within 1-2 business days. All specifications are available in both nylon and polyester configurations.





HYDROTEX® Filter Point

HYDROTEX Articulating Block

HYDROTEX Uniform Section

HYDROTEX Filter Band

HYDROTEX Enviromat

Port Canaveral Cruise Terminal Berth1

Port Canaveral Cruise Terminal Berth1



Brevard County, Florida, USA


When Port Canaveral, the second busiest cruise embarkation port in the world, undertook the significant expansion of its complex of terminals with a new Terminal 1, the Port Canaveral Authority hired CH2M Hill for the design of waterfront berth. The new cruise terminal complex handles the largest cruise ships currently sailing as well as the 6000-passenger vessels in design.

Orion Marine Construction was awarded the $31.4 million contract for the construction of the 1400 ft long berth in February 2014. Synthetex HYDROTEX® Articulating Block (AB) and Uniform Section (US) fabric formed concrete scour protection mattresses were selected and installed for the waterfront construction of Terminal Berth 1.


Owner:Canaveral Port Authority
Engineer:CH2M Hill
Contractor:Orion Marine Construction
Installation:2015
Products:HYDROTEX Articulating Block 1000 (AB1000)
HYDROTEX Articulating Block 1200 (AB1200)
HYDROTEX Uniform Section 1200 (US1200)

Save money, resources, and time on your next erosion control project. Get a project estimate:

Quay Protection Togo Terminal

Quay Protection Togo Terminal



Port of Togo, Togolese Republic



Owner:Port Autonome de Lome
Contractor:Norfolk Marine Ltd
Installation:2014
Products:HYDROTEX Uniform Section (US800)
HYDROTEX Uniform Section (US600)

Save money, resources, and time on your next erosion control project. Get a project estimate:

Optimization of Berths 1—3 Quay Slope Protection

Optimization of Berths 1—3 Quay Slope Protection



Port of Walvis Bay, Republic of South Africa



Owner:Namibia Port Authority
Engineer:WML Coast (Pvt) Ltd.
Contractor:Stefanutti Stocks Marine
Installation:2012
Products:HYDROTEX Articulating Block (AB1200)

Save money, resources, and time on your next erosion control project. Get a project estimate:

Ben Schoeman Quay

Ben Schoeman Quay



Port of Cape Town, Republic of South Africa


The Port of Cape Town has two major docks and a total of 34 berths. Ben Schoeman Dock is the larger outer dock and houses the container terminal. The depth of the entrance channel to Ben Schoeman Dock is 14 m deep. The water depth within Ben Schoeman Dock varies between 9 m and 13.9 m.

The Cape Town Container Terminal (CTCT) was expanded to berth larger vessels. When completed in 2012, the R5.4bn ($780 million) project increased the terminal capacity twofold and transformed the port into a regional shipping hub.

Design work began in December 2007 and the project broke ground in January 2008. ZAA Engineering Projects and Naval Architecture was subcontracted by the WBHO – Stefanutti Stocks Marine joint venture to furnish an alternative design for the extension to berths 601, 602, 603 and 604. ZAA selected HYDROTEX® Articulating Block (AB) concrete mattresses for the required scour protection for the berths.


Owner:City of Cape Town
Engineer:ZAA Engineering Projects and Naval Architecture (Pvt) Ltd.
Contractor:WBHO—Stefanutti Stocks Marine
Installation:2012
Products:HYDROTEX Articulating Block 1000 (AB1000)
HYDROTEX Articulating Block 1200 (AB1200)

Save money, resources, and time on your next erosion control project. Get a project estimate:

Reconstruction of Berth Quay Slope Protection

Reconstruction of Berth Quay Slope Protection



Port of Durban, Republic of South Africa


Transnet National Ports Authority (TNPA) was awarded an R760-million contract to reconstruct the sheet-pile quay walls at Maydon Wharf at the Port of Durban to the joint venture consortium of Stefanutti Stocks and Axsys Projects.

The first phase of the project began in July 2011 with the reconstruction of berth 12 which ended in November 2012. A 2007 feasibility study concluded the quay walls had deteriorated and that the 60-year-old steel sheet pile quays were failing.

The new quay walls and deepened berths accommodate fixed quayside loading and unloading equipment. They also ensure flexibility to accommodate future changes in various types of cargo handled in the precinct including containers. Among other things, the scope of work involved the demolition of existing quay walls, construction of new steel sheet piled quay walls and scour protection, and demolition of concrete plinths and foundations. Maydon Wharf is the largest break-bulk and dry-bulk handling precinct in the Port of Durban. It covers approximately 120 hectares of port land and consists of 15 berths that handle more than 7 million tons of cargo per annum.

As with other major projects, Stefanutti selected HYDROTEX® Articulating Block (AB) concrete mattresses for scour protection of the berths.


Owner:City of Durban
Engineer:WML Coast (Pvt) Ltd.
Contractor:Stefanutti Stocks Marine
Installation:2012
Products:HYDROTEX Articulating Block 800 (AB800)

Save money, resources, and time on your next erosion control project. Get a project estimate: