Bridge Abutment Scour Protection Solutions

Bridge Abutment Scour Protection Solutions

Without proper protection, bridge abutments can suffer from localized scour, critically compromising the structure’s stability.

A HYDROTEX concrete mat will prevent bed degradation and soil loss around the abutment, diminishing this risk.

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Bridge Abutment Scour Protection Solutions

Without proper protection, bridge abutments can suffer from localized scour, critically compromising the structure’s stability.

A HYDROTEX concrete mat can prevent bed degradation and soil loss around the abutment, diminishing this risk.

HYDROTEX fabric-formed concrete is the top countermeasure for localized scour and erosion at bridges and piers.

We provide best-in-class bridge abutment scour protection solutions for engineering firms, general contractors, and installers looking for a permanent, cost-effective product they can confidently use to bid on a project.

With HYDROTEX, you save money, resources, and time.

How is HYDROTEX used in bridge abutment protection projects?

Bridge abutment before HYDROTEX installation

The Problem

Water velocity, wind, and/or wave run-up cause soil loss and bed degradation at bridge abutments.

When soil is lost underneath the abutment, the structure will settle downward, causing a difference in elevation and forming cracks that will lead to irreparable damage and structural failure.

Bridge abutment after HYDROTEX installation

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

Prevent failure by using HYDROTEX fabric forms for the in-situ casting of concrete. With a custom-made HYDROTEX fabric form, you can cast a permanent mattress or grout bag that conforms to the scour depth and stabilizes the abutment.

One principal benefit of our product is that it can be installed under water. It’s also much easier to install in low head clearance conditions. Rip rap, for example, isn’t as easy to install in such conditions.


Articulating Block Concrete Mat on Slope

HYDROTEX® Articulating Block Fabric Forms (Fabriform)

Cast an articulating block concrete mattress to protect an abutment with HYDROTEX Articulating Block fabric forms. We manufacture the fabric forms with internal revetment cables that aid articulation and permit flexibility. Once cast in place with fine aggregate concrete, you’ll get a custom mattress that remediates and prevents scour. This is the most popular product for bridge abutment protection projects.

HYDROTEX® Grout Bags for Bridge Abutment Protection

Easily cast a grout bag with a custom-made HYDROTEX grout bag fabric form. Another popular choice for bridge abutment protection projects, a grout bag will fill the scour hole and prop the abutment back up if the local scour has already effected a difference in elevation. Grout bags are made with 100% custom width and height for any type of bridge abutment.

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Why choose HYDROTEX for Scour Prevention at Bridge Abutments?

HYDROTEX is easy to install underwater and requires no excavation, making it superior to grouted riprap, gabion baskets, retaining walls, and reinforced soil systems.

The geosynthetic panels are delivered to the project site ready-to-pump, and installation requires no heavy machinery or specialized workforce.

Not convinced? HYDROTEX is permanent, durable, and maintenance-free. Once installed, it is there to stay.

Which industries typically need abutment protection services?

A bridge going over water

What type of bridges can be protected by HYDROTEX?

Bridges that cross over any body of water—including river bridges, railroad bridges, and highway bridges—can be protected by HYDROTEX fabric-formed concrete.

Because HYDROTEX is custom-manufactured according to the bridge’s specifications, it can provide a level of protection that surpasses that of mass-manufactured scour protection solutions.

Have more questions? Unsure whether this is the right solution for you? Call 1-800-225-0023 for a free consultation with our engineers. We would be happy to help.

bridge abutment scour protection

Who is Synthetex?

We are the manufacturer of HYDROTEX® geosynthetic fabric formwork used for the in-situ casting of concrete.

We are not an engineering firm, subcontractor, concrete supplier, or fabriform installer. We are a manufacturer.

As your manufacturer, we work with each of those entities to deliver cost-effective solutions at every stage of your project. Our team will also assist with cost analyses, train installation teams, provide technical assistance, and assist with design and hydraulics.

We’re not just a one-time supplier—we’re your strategic partner for your current project and beyond.

Looking for a different solution?

HYDROTEX® Grout Bags

grout bags

Grout (Concrete) Bags

Synthetex’s HYDROTEX® Grout (concrete) Bags (GB) and tubes are an economical and convenient choice for applications requiring concrete, grout or sand filling.  Constructed of the high-strength polyester fabrics and using a heavy-duty sewing process, our bags are ready to perform in your most demanding construction or repair installations.  The custom designed bag is available in a variety of materials and a wide assortment of dimensions, porosities, volume capacity, and filling valve types that ensure compatibility with your applications.  Their flexibility and size makes them ideal for installation through confined spaces.

Synthetex provided more than 70 grout bags ranging from a 1.5 m³ to 168 m³ capacity for the repair of an airstrip jetty in the Shetland Islands, Scotland.  The bags were first filled with water and then the water displaced with concrete to permanently fill voids in the rock jetty.

The bags provide the formwork required to cast concrete elements with the mass and stability to withstand the waves and rapidly flowing water.  The concrete grout bags may be placed side-by-side or stacked to form an inherently interlocked concrete structure.  As with our HYDROCAST® formworks, concrete grout bags can be positioned and filled with concrete from the surface in shallow water or by divers in deeper water.

Since they are cast-in-place, they intimately adapt to variations in the subgrade or bottom contours. Installations do not require dewatering, a crucial advantage in emergency repair of scour aprons.  Unlike rock or precast concrete blocks, they do not require placement by heavy lift cranes working from the land or from barges.

Synthetex’s grout bags can be used to help with the following:

  • Breakwater, dike, groin and jetty repair
  • Bridge column repair
  • Culvert aprons
  • Embankment stabilization
  • Grout bag underpinning
  • Seawall and quay wall repairs
  • Scour repairs
  • Vertical drains
  • Void filling


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.


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