Culvert & Outfall Erosion Protection Solutions

Permanent Erosion Control for Culverts & Outfalls

Protect roadside culverts and outfalls with HYDROTEX fabric formwork for the casting of concrete erosion control systems. Save money on installation costs and deliver a solution that fulfills the requirements of all project stakeholders.

Get a project estimate today:



Permanent Erosion Control for Culverts & Outfalls

Protect roadside culverts and outfalls with HYDROTEX fabric formwork for the casting of concrete erosion control systems. Save money on installation costs and deliver a solution that fulfills the requirements of all project stakeholders.

Get a project estimate today:



HYDROTEX fabric-formed concrete is the best erosion control solution for culvert and outlet protection.

Roadside culverts should be protected from soil loss with a custom-manufactured erosion control system.

Synthetex manufactures the leading permanent erosion control product for municipalities and DOTs who want to permanently protect culverts and outfalls against erosion. HYDROTEX fabric-formed concrete is the top solution for this application, providing a permanent lining that requires minimal upkeep.

How is HYDROTEX used for outfall and culvert protection?

The Problem

Roadside culverts and outfalls are at a high risk of erosion, affecting inlet and outlet control. It can also expose the pipe, leaving it susceptible to critical damage that may permanently reduce the efficiency of the culvert’s components. This can cost thousands of dollars in repair.

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

Prevent erosion at culverts by installing a HYDROTEX fabric-formed concrete mattress. Whether you opt for a filter point, uniform section, or articulating block formwork, a HYDROTEX cast-in-place mattress will help guide the water into or out of the pipe and permanently protect against erosion.

Best HYDROTEX Fabric Forms for Protecting Culverts

HYDROTEX Filter Point

HYDROTEX® Filter Point



HYDROTEX Filter Band

HYDROTEX® Filter Band® Concrete Mattress



HYDROTEX Uniform Section

HYDROTEX® Uniform Section



HYDROTEX Enviromat

HYDROTEX® Enviromat®



Articulating Block Concrete Mat on Slope

HYDROTEX® Articulating Block



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Permanent Canal Lining to Prevent Seepage

Sometimes a canal needs to be lined on the sides and the bottom to protect against seepage and erosion. In those cases, a HYDROTEX fabric-formed concrete mat is the best choice.

With a diver’s help, the unpumped geosynthetic panel can be dragged across the riverbed. Once pumped with fine aggregate concrete, the mattress will naturally adjust to the soil.

Which industries typically need canal lining services?

Mine
River and canal erosion control
Airport runway

The Better Alternative for Precast Concrete Canal Lining

Unlike pre-cast concrete blocks, HYDROTEX can be easily transported to and from the project site.

No matter how remote or how close the canal is to a major highway, you will have no trouble transporting the geosynthetic panels to the installation site.

Additionally, other lining alternatives such as brick, puddle clay, LDPE plastic, cement, earthen types, or asphalt offer only a temporary solution that requires upkeep or replacement within a few years. HYDROTEX, on the other hand, is permanent and maintenance-free. After installation, HYDROTEX fabric-formed concrete mattresses can last up to thirty years without any intervention.

Related Solutions

Embankment Erosion Protection Solutions

Permanent Erosion Protection for Embankments

Synthetex manufactures HYDROTEX custom-made fabric formworks for the casting of concrete embankment protection systems. Offering cheaper freight costs and minimal labor requirements, HYDROTEX helps you save money and time.

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Permanent Erosion Protection for Embankments

Synthetex manufactures HYDROTEX custom-made fabric formworks for the casting of concrete embankment protection systems. Offering cheaper freight costs and minimal labor requirements, HYDROTEX helps you save money and time.

Get a project estimate today:



With HYDROTEX, embankment slope protection is permanent and easy.

HYDROTEX fabric-formed concrete is the leading embankment protection method for rivers, locks, coasts, harbors, and more. Simply lay out the geosynthetic panels, pump with fine aggregate concrete, and see your custom-manufactured mattress rise to its designed thickness.

Though typically not used as a soil stabilization product, HYDROTEX can help stabilize the embankment and provide an extra layer of protection against hydraulic and environmental forces.

How is HYDROTEX used at embankments?

The Problem

Unprotected embankments can erode and cause the soil to recede under roads, infrastructure, and valuable property, leading to the catastrophic collapse of these structures.

How? Left exposed, embankments can erode due to waves, flowing water, or underwater ship thrusters. The optimal embankment protection solution will therefore accommodate different conditions and protect the embankment decades after installation.

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

HYDROTEX fabric formworks are the best way to cast a concrete mattress that effectively prevents the soil from eroding and keeps the embankment intact.

With HYDROTEX, you can take care of any design requirements. For example, you can choose a product that relieves hydrostatic pressure, decreases water velocity, reduces wave run-up, or provides an impermeable liner.

Best HYDROTEX Fabric Forms for Permanent Embankment Erosion Control

Articulating Block Concrete Mat on Slope

HYDROTEX® Articulating Block



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HYDROTEX in Action at Embankments



Embankment Protection for Locks and Dams

Just like any other inland waterway, locks and dams have embankments that need to be protected from erosion.

HYDROTEX fabric-formed concrete is the best solution for this application. A HYDROTEX fabric-formed concrete mat can withstand the hydraulic forces present at dams and prevent soil loss at these fragile areas.

Embankment erosion control services are typically applicable for:

Lock and dam
Marine facility
Mine
Wastewater plant
Ship at port
River and canal erosion control
Airport runway
Sediment remediation and capping

Coastal Embankment Protection

Coasts are subject to erosion because of their constant contact with the ocean’s waves. Protect the coast near or around your facility with a HYDROTEX fabric-formed concrete mattress. Our customized fabric formworks can help you cast a mattress of any thickness and configuration.

For example, two different formworks can be sown together, with an impermeable concrete mattress on one end and a permeable concrete mat on the other.

HYDROTEX can also be used as a shoreline revetment product.

River and Canal Embankment Protection

Preventing embankment failure should be a priority for municipal and regional authorities trying to maintain the well-being of bodies of water in their districts. HYDROTEX fabric-formed concrete is the best erosion protection measure at river embankments, providing far superior protection than geocells (cellular confinement), matting, rip rap, and prefabricated concrete blocks.

Embankment Protection at Bridges, Highways, & Railways

Embankment failure is a concern for DOT authorities looking to ensure the sustainability of their municipality’s rivers, canals, and other inland bodies of water. Ensure river embankments are protected by armoring them with HYDROTEX fabric-formed concrete.

Permanent and simple to install, a concrete mattress will relieve hydrostatic pressure and keep the soil protected underneath.

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.


Related Solutions

Concrete Ditch Lining Solutions

Concrete Ditch Lining

Synthetex is the manufacturer of HYDROTEX fabric forms for the casting of concrete ditch lining systems. By choosing HYDROTEX, consulting firms, contractors, and project owners save money on installation, labor, and freight costs.

Get a project estimate today:



Concrete Ditch Lining

Synthetex is the manufacturer of HYDROTEX fabric forms for the casting of concrete ditch lining systems. By choosing HYDROTEX, consulting firms, contractors, and project owners save money on installation, labor, and freight costs.

Get a project estimate today:



Tackling concrete ditch lining requirements is easy with HYDROTEX fabric-formed concrete.

With a concrete ditch lining system, you can permanently control erosion in ditches both big and small. A permanent rather than temporary solution, HYDROTEX fabric-formed concrete can be used in virtually any trapezoidal ditch, including drainage ditches, irrigation ditches, and stormwater ditches. Give our team a call at 1-800-225-0023 for a free project consultation.

How is HYDROTEX used in concrete ditch lining projects?

The Problem

Just like canals and channels, ditches are subject to bank erosion. The ditch’s embankment can encroach upon the adjacent roadway, infrastructure, or valuable property, leading to a catastrophic collapse.

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

Protect your ditch from bank erosion by casting a concrete lining using HYDROTEX fabric formworks for the casting of concrete. With HYDROTEX, the bank won’t erode, protecting valuable adjacent structures and property.

You have a wide variety of options to line the ditch, including permeable concrete mattresses, vegetated concrete mattresses, and impermeable concrete mats. The permeable mats accommodate hydrostatic pressure relief, while the impermeable mat prevents vegetation.

Best HYDROTEX Fabric Forms for Lining Ditches with Concrete

HYDROTEX Filter Point

HYDROTEX® Filter Point


Use HYDROTEX Filter Point fabric forms to create a permeable ditch lining system that provides hydrostatic pressure relief. This mattress comes in thicknesses ranging from 2 to 16 inches to accommodate different shear stress environments.


HYDROTEX Filter Band

HYDROTEX® Filter Band® Concrete Mattress


Like Filter Point, HYDROTEX Filter Band fabric forms are apt for casting a permeable concrete lining that will reduce wave-run up while preventing bank erosion at ditches.


HYDROTEX Uniform Section

HYDROTEX® Uniform Section


For an impermeable solution that won’t allow vegetation, consider Uniform Section concrete linings, the strongest alternative to concrete slope paving. Simply place the double-walled geosynthetic panels across the ditch’s sides and bottom, then pump with aggregate concrete to cast an entirely custom-made concrete mattress.


HYDROTEX Enviromat

HYDROTEX® Enviromat®


Enviromat is a vegetated option for ditch lining projects with stringent aesthetic requirements.


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Concrete Mattresses for Roadside Ditches

Roadside ditches don’t have to be left to the mercy of the wind, rain, and other environmental factors.

Line them with a HYDROTEX fabric-formed concrete mattress to minimize soil loss in any ditch in your municipality and mitigate erosion issues before they arise.

Ditch lining services are typically applicable for:

Mine
Airport runway

HYDROTEX: The Best Permanent Ditch Lining System

Forget reinforced polyethylene (RPE) ditch liners, cement, rip rap, gravel, or precast concrete.
HYDROTEX fabric-formed concrete is the superior erosion control solution for your next ditch lining project. Permanent and hassle-free, a HYDROTEX concrete mat only requires a small concrete pump and four to five people for installation.*

It’s a proven erosion control system that has been in use for more than thirty years. Though applicable in a multitude of industries, HYDROTEX is typically not used for residential ditch lining projects.

Aside from being easier to install and cheaper to transport than alternatives, HYDROTEX is incredibly versatile and has numerous applications, including concrete channel lining, concrete canal lining, and embankment protection. Ready to get started? Call our team at 1-800-225-0023 for a consultation.

*Depending on the square footage of the installation.

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.


Related Solutions

Detention Pond Erosion Control Solutions

Permanent Erosion Control for Detention Ponds

Get a project estimate today:



Permanent Erosion Control for Detention Ponds

Get a project estimate today:



HYDROTEX fabric-formed concrete is a proven method to permanently prevent erosion at detention ponds.

Detention ponds are excavated structures that are designed to temporarily hold excess water before it goes into a natural body of water. Sometimes, it may be dry. To prevent the soil from eroding, an embankment protection system is required. HYDROTEX fabric-formed concrete is the leading erosion control solution for detention ponds and retention ponds, saving millions in repair costs.

How is HYDROTEX used at detention ponds?

The Problem

Like canals, channels, retention ponds, and cooling ponds, detention ponds can suffer from bank erosion, which causes the embankment to recede toward any adjacent infrastructure. As the soil recedes, these structures can potentially collapse.

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

Solve this problem by installing a concrete mattress using our HYDROTEX fabric formworks for the casting of concrete erosion control mattresses. Whether vegetated or non-vegetated, a HYDROTEX mattress will control bank erosion and protect valuable adjacent structures or property.

With HYDROTEX, you have a wide range of options. Using our fabric forms, you can cast a permeable, impermeable, or vegetated mattress—all while keeping costs low and your profits high.

Best HYDROTEX Fabric Forms for Erosion Control at Cooling Ponds

HYDROTEX Filter Point

HYDROTEX® Filter Point



HYDROTEX Filter Band

HYDROTEX® Filter Band® Concrete Mattress



HYDROTEX Uniform Section

HYDROTEX® Uniform Section



Have a pressing question? Want a consultation or project estimate?

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Proven Detention Pond Lining and Embankment Protection

Used for wastewater management and sediment retention, detention ponds are an important part of any facility’s design.

With HYDROTEX at your side, you can permanently banish erosion in detention ponds. Sometimes wet and sometimes dry, detention ponds can be particularly susceptible to erosion. Whether you choose to line the entirety of the pond or protect only one side, HYDROTEX fabric-formed concrete mattresses will effortlessly get the job done.

Our products are also used to protect retention ponds, downchutes, culverts and outfalls, and more.

Cooling pond erosion control services are typically applicable for:

Industrial plant
Mine
Wastewater plant
Airport runway

Protect Municipal Detention Ponds with HYDROTEX

In municipal applications, detention ponds are excavated beside rivers and other inland bodies of water to temporarily hold excess water, preventing flooding and mitigating soil loss.

Though they play a critical role in erosion control, the ponds themselves must also be protected to ensure they continue functioning. A HYDROTEX fabric-formed concrete mattress will provide municipal detention ponds much needed protection against erosion.

Why do you need EROSION CONTROL FOR INDUSTRIAL WASTE DETENTION PONDS?

Industrial waste is the unusable by-product of industrial activity in factories, mills, and mining operations.

Some examples include paper products, chemical solvents, paints, metals and radioactive waste.

Industrial wastewater treatment is used to contain and treat waters that have been contaminated by anthropogenic industrial or commercial activities prior to it being released into the environment or re-used. Industrial waste treatment often requires detention systems that include one or more basins, or ponds designed to receive, hold and treat wastewater for a predetermined length of time.

Synthetex’s HYDROTEX® fabric-formed concrete mattresses prevent erosion of the detention pond’s banks from wind-generated waves and the growth of long grass and weeds that block wind and provide breeding areas for flies, mosquitoes and other insects.

Municipal wastewater treatment plants can also extract similar benefits from using HYDROTEX to protect these vulnerable areas.


Related Solutions

Roads, Highways, & Airports Erosion Control

Erosion Control for Roads, Highways, & Airports

Synthetex makes the best permanent erosion control products for roadside ditches, highway embankments, and airport detention ponds.

Erosion control isn’t limited to rivers, canals, or places with water. Wind and other environmental factors can cause soil loss, which is why you should rely on Synthetex to manufacture a custom-made concrete mattress that will protect roadside ditches, culverts, detention ponds, and more.

Why is HYDROTEX the top choice for your roads, highways, and airports erosion control project?

Forget about checking up on an erosion control product months and years after installation. HYDROTEX fabric-formed concrete is the top solution for Departments of Transportation because of its easy installation process, cost-effectiveness, and durability.

HYDROTEX fabric-formed concrete can last for up to fifty years without needing maintenance or upkeep. It is truly the best solution for Departments of Transportation looking for a durable erosion control solution that won’t cost them thousands of dollars in repair.

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

Erosion Control for Departments of Transportation (DOTs)

From complex highway interchanges and major bridge river crossings to local streets, bikeways and pedestrian paths, Synthetex can assist a project through conceptual design and construction. Whether we are working with a multidisciplinary engineering firm, local community or contractor, we take care of your DOT erosion control requirements and needs.

HYDROTEX can be installed at:

Interstate highways
State and local roadways
Railroad overpasses
Canal overpasses
Bikeway and pedestrian overpasses

Erosion Control for Airports

Rain that hits runways, ramp areas and buildings flows through drainage ditches and culverts, and ends up in the stormwater collection systems. This water can become contaminated due to the storing, utilizing, handling and disposing of fuel and hazardous materials on the property. Aircraft fueling, equipment cleaning, oil and fuel spills, and maintenance activities can all contribute to this contamination and affect surrounding streams if not prevented.

Synthetex’s HYDROTEX® Fabric Formed Concrete erosion control and scour protection systems provide a wide range of solutions for concrete-lined collection and drainage ditches to stormwater detention ponds.

Erosion Control for Railway Transportation

Many countries rely on railways as their primary methods of passenger and freight transport. Europe has an integrated network throughout the entire continent. In India, China and Japan, millions of people use trains everyday. In North America, freight rail transport is also widespread.

If you’re a railroad engineer, we’re here to help. We know that railroads across the globe are prioritizing maintenance-of-way projects focusing on bridges. The work is either part of broader plans to maintain states of good repair or it’s part of an initiative to replace a worn-out bridge so a new one can better accommodate heavier loads and faster trains.

Synthetex’s HYDROTEX® Fabric Formed Concrete erosion control and scour protections systems are your solution. We can custom-manufacture fabric forms to create articulating concrete block scour aprons at bridge abutments and around support columns, or to create a revetment along the track.

Why us?

Synthetex provides best-in-class erosion control, scour protection and technical services to help you achieve sustainable solutions. We foster long-term relationships with you, offering cost-effective and reliable design and construction expertise that creates value at every turn.

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

Pile Guards

Pile Guards (PG)


The effect of the marine environment on structural materials can be harsh and unforgiving.  The service life and structural capacity of elements composed of reinforced concrete, structural steel, timber, and composites are affected by spaling, rust and hostel marine environments.

Repairs to underwater bridge elements have been successfully completed for many years. However, the increased age of the bridges and related structures around the world, as well as the increased emphasis in regular underwater inspection by national bridge standards indicate an increased need to perform repairs to elements located below or in water.

Synthetex’s high-strength HYDROTEX Pile Guards Fabric Formed Concrete pile jacket repair systems are available in lengths and diameters designed to armor your steel, concrete or timber piles with custom solutions and not restricted to the standard diameters.  Fabric formed pile jackets are a proven economical solution for the pile repair and protection.

HYDROTEX® FilterBand®

FilterBand® (FB) Concrete Linings


FilterBand® (FB) Concrete Linings are similar to Filter Point, providing an effective and highly permeable concrete lining that resists erosive forces. FilterBand® differs from Filter Point in that the form creates interconnected, tubular concrete elements that are separated by large, interwoven filtration bands.  The filtration bands provide for greater reduction of uplift pressures than Filter Point Linings.  Also, the biaxial alignment of the tubular elements creates two directionally determined coefficients of hydraulic friction. As a result, FilterBand® achieves greater reduction of flow velocity or wave energy than Filter Point.

FilterBand® concrete linings are specified in situations similar to those for which Filter Point might be specified, which also require greater relief of uplift pressures, higher reduction of flow velocities, or greater reduction of wave run-up.

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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

HYDROTEX® Filter Point

Filter Point (FP) Concrete Linings

Filter Point (FP) Concrete Linings


Filter Point Concrete Linings with filtration points (drains) provide erosion-resistant, permeable concrete linings for ditches, channels, canals, streams, rivers, ponds, lakes, reservoirs, marinas, and protected port and harbor areas.

Filter Point Concrete Linings have a cobbled surface and a relatively high coefficient of hydraulic friction in order to achieve lower flow velocities and to reduce wave run-up. The filtration points provide for the relief of hydrostatic uplift pressures, increasing the system’s stability.

Filter Point Concrete Linings were the first type of fabric formed concrete system developed. In 1965, a Dutch patent was issued for “fabric formed slope paving.” The form suggested by this patent was later refined to create the first “filter point” lining.

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Submit a Request for a Filter Point 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