HSI Services, Inc. has 20+ years of experience in water management

Maintain Water Flow with Aqua-Barrier® Using Diversion Pipes

Maintain Water Flow with Aqua-Barrier® Using Diversion Pipes

While a dry worksite is essential for many construction and repair projects, there are many cases where it is not feasible to completely cut off the water flow. In applications that require the water flow of a river or creek to be completely cut off, it may become necessary to maintain water flow using diversion pipes or bypass pumps.

Diversion Examples

Diversion in Telluride, CO

Diversion in Telluride, CO


Diversion, Ontario, Canada

Diversion in Ontario Canada


The Aqua-Barrier® inflatable cofferdam (with or without diversion) is an efficient dewatering solution for various industries.  For more information contact your Hydrological Solutions, Inc. representative.


Temporary Cofferdams Will Change the Way You View a Shoreline Restoration Project

Temporary Cofferdams Will Change the Way You View a Shoreline Restoration Project

830432While the average person not immersed in the industry may not give it a second thought, we know that shorelines play a significant role in the ecological balance of the natural environment. Whether constructed by nature itself or engineered as in the case of a seawall or concrete barrier,  erosion can occur, and the shoreline must be restored. Our environmentally friendly, temporary cofferdams will save you time and money on your next shoreline restoration project.

The Importance of Shoreline Restoration

  • Shorelines trар ѕеdіmеntѕ frоm uрlаnd run-оff.
  • Thеу reduce ѕеdіmеntѕ frоm еntеrіng thе wаtеr, whісh prevents оvеr fеrtіlіzаtіоn thаt саn lead to mаѕѕіvе wееd growth аnd аlgае blооmѕ. Shоrеlіnе рlаntѕ rесусlе nutrіеntѕ bеfоrе they аrе аblе tо rеасh the wаtеr.
  • A wеll planted ѕhоrеlіnе hеlрѕ aquаtіс аnіmаlѕ ѕuѕtаіn lіfе аnd thе рlаntѕ рrоtесt the ѕhаllоw wаtеr from wаrmіng. Thіѕ mаkеѕ a gооd hаbіtаt fоr mіnnоwѕ tо lіvе within thе еmеrgеnt рlаntѕ. Thе mіnnоwѕ аttrасt lаrgеr fіѕh аnd this рrоvіdеѕ bеttеr ѕhоrеlіnе fіѕhіng. Overall, shorelines рrеѕеrvе thе ecological bаlаnсе оf thе lake аnd рlауѕ аn еѕѕеntіаl rоlе іn thе bеаutу оf thе lаndѕсаре
  • Thе shoreline асtѕ аѕ аn іmроrtаnt buffеr zоnе frоm tеrrеѕtrіаl tо аԛuаtіс есоѕуѕtеmѕ. A wеll рlаntеd ѕhоrеlіnе hеlрѕ рrеvеnt роllutіоn frоm ѕtоrm wаtеr run-оff аnd lаwn fеrtіlіzеrѕ frоm entering thе lake ѕуѕtеm. Thіѕ аllоwѕ fоr bеttеr wаtеr ԛuаlіtу аnd lеѕѕ аlgае blооmѕ.
  • Thе ѕhоrеlіnе аlѕо рrоvіdеѕ рrоtесtіоn frоm erosion. In аddіtіоn thе ѕhоrеlіnе рrоvіdеѕ рrіvасу аnd a ѕtunnіng vіеw оf thе lаkе.

Aqua Barrier® fоr Sеdіmеnt Cоntrоl and Shоrеlіnе Rеѕtоrаtіоn.

The Aqua Barrier® Temporary Cofferdam provides a cost-effective, environmentally friendly solution for protecting the shoreline during restoration projects. As you work to repair or rebuild the shoreline, the cofferdam works as a water barrier to sustain the natural environment and ecosystem. The cofferdam provides an efficient way to dewater the worksite and control sediment until the permanent shoreline is restored.

Why Choose Aqua Barrier®?

The Aqua Barrier® system has been used all over the world for various projects including shoreline restoration, pipeline construction, bridge construction, pool maintenance, boat ramp installation and more. It is quick and easy to install compared to other methods such as sandbags, safe for the environment, and reusable. Save time and money on your next shoreline restoration project with the Aqua Barrier® temporary cofferdam.

Contact us to tell us more about your project and learn more about how the system works.  

Evolution of Cofferdams: A Dewatering Timeline


Evolution of Cofferdams

Evolution of Cofferdams

Cofferdams have a rich and interesting history. They have been used for water control dating back to 539 BC and have evolved and improved over time.

Earthen Cofferdam


In 539 BC, King Cyrus of Persia used earthen cofferdams to temporarily divert the Euphrates river, allowing the capture of the city of Babylon. Babylon’s dominance ended and the rule of the Medo-Persian empire began.

Roman Cofferdam

Roman CofferdamTemporary Wood Pilings

The Romans used temporary wood pilings as cofferdams to build Trajan’s Bridge across the Danube river in 102 AD in modern-day Romania.

Sandbags for Water Control


Sandbags were first used during the Napoleonic Wars in the 1800’s. They were first used for protection during battle and later used as temporary dams for water control.

Read about the drawbacks of using sandbags for your dewatering project.

Steel Sheet Pile Cofferdam

Steel Sheet Pile

In the early 1900’s a milestone in cofferdams was introduced in the form of steel sheet pile by an engineer in Germany. Larssen’s “U” shaped piling with its interlock design is still used today.

Aqua Barrier Water Inflated Cofferdam


Aqua-Barriers were introduced into the marketplace in 1996 featuring a patented internal baffle system which provides stability.

Read about the benefits of using Aqua Barrier Water Inflated Dams for Your Dewatering Project.

 Modern-day Uses for the Aqua Barrier

The Aqua Barrier water inflated cofferdam is used for a variety of dewatering projects. Our clients have found them very effective in building boat ramps and bridges, for pipeline construction projects, water park maintenance, shoreline restoration and more.

Learn more about the various uses of the Aqua Barrier and let us help you with your next dewatering project! Contact us for more information.

Cofferdam Comparison: Inflatable vs. Traditional

Cofferdam Comparison: Inflatable vs. Traditional

What is a Cofferdam?cofferdam

A Cofferdam is one of the best watertight structures specially designed to help construction projects and buildings in a particular region that are usually submerged, like piers and bridges. With exclusive features, the excellent construction permits workers to enact repairs, build structural supports and perform some other jobs in a hassle-free and dry environment. If the construction is not installed properly, then it may create more hazards to the workers. In order to avoid dangerous issues, engineering advancements create a unique work setting and protect the workers properly.

construction-smTraditional Cofferdams

There are several kinds of materials used to create a cofferdam. It is a temporary structure, but it has the capability to hold water back from the particular work area. Along with this, it also has specialized features to withstand greater pressure. The basic cofferdam utilizes sheet metal in order to create an effective watertight wall which can be very expensive and time consuming to install. Other types are built from concrete or wood and other prefer double walled techniques along with filler. There is a wide array of cofferdam constructions available including braced, rockfill, double wall, earth embankment, cantilever sheet pile and cellular cofferdams.

Highlights Of Inflatable Dams#5 far view of barriers fully inflated in dewatered work area

Inflatable cofferdams are more beneficial than any other dam. Hydrological Solutions puts our entire efforts into their design. Our Aqua-Barrier Cofferdams are greatly supported by wide-ranging engineering analysis. The dams are purely custom designed to integrate seamless construction, curtailed stress concentrations, superior clamping, zero or minimal creases and robust flow division control. We design the aqua barrier by using high-strength and powerful fabrics with weather and abrasion resistance features.

Most builders prefer our inflatable dams because they are quick and easy to install and are a cost-effective way for controlling the water flow in an easier and convenient manner. Contact us today for more information or a free quote!

El Nino and It’s Effects on Texas Weather

texas weatherYou may remember the name El Nino from the unprecedented destruction that followed the waves of storms in 1997. Here in 2015, scientists are beginning to see patterns that indicate an even stronger El Nino than what we experienced 18 years ago.


What is El Nino?


El Nino is a pattern of weather that, “occurs when sea-surface temperatures are above normal off the Pacific coast of South America, bringing wetter weather to the southern U.S. A strong El Niño could also be a boon to drought-stricken California. The current El Niño is among the strongest on record.” Star-Telegram


What are the Effects of El Nino on Texas Weather?


According to Texas Storm Chasers: “Because of our close proximity to the Gulf of Mexico south winds usually bring warmer air in quickly. It takes the right amount of moisture, a cold airmass, and upper level energy at the perfect point to produce a winter storm.”


texas weatherIn Spring of this year we saw major flooding and rain throughout Texas due to the early onset of the weather patterns of El Nino, and it is forecasted that we might be seeing it again in the later months of the year.  



Texas weather may not be seeing too many cold days however, National Weather Service meteorologist Dan Huckaby mentions, “extreme cold outbreaks are actually less likely during El Niño winters, which typically have fewer days with freezing temperatures than normal.”


These early warnings allow us to prepare in time to protect our properties. Millions of dollars in damage and hundreds of deaths can be prevented with adequate precautionary measures.


Hydrological Solutions provides Flood and Water Control for both industrial and residential properties.


Contact Us today for more information on protecting your investments for the upcoming season.