Landslide Repair in Texas

Engineered landslide repair across Texas—I-35. Design/build solutions for TxDOT corridors and critical infrastructure.

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Landslide scar on failed slope before stabilization

Landslide Repair Across Texas

Texas's landslide risk spans the Balcones Escarpment's limestone terrain around Austin and San Antonio and the expansive clay slopes of the Blackland Prairie further east, and along I-35's central corridor, TxDOT sees slope failures driven by two very different mechanisms depending on which side of the Escarpment the site falls on — a geologic transition most single-approach repair specifications don't account for.

GSI sees this alongside other Steep Slope Stability Issues work across the state's infrastructure network.

Geohazard Mitigation in Texas

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How GSI Delivers Landslide Repair in Texas

Soil Nail Wall Reinforcement

GSI's soil nail designs for Texas differ by geologic province: Balcones Escarpment limestone slopes get reinforcement anchored into competent limestone, while Blackland Prairie clay slopes get reinforcement designed around expansive clay's swell-shrink behavior. GSI's soil nailing experience informs this approach.

Deep Drainage Systems

Karst-influenced groundwater near the Balcones Escarpment and expansive-clay-perched groundwater in the Blackland Prairie require distinctly different horizontal drain strategies, which GSI designs independently for each Texas geologic setting. This draws directly on GSI's Soil Nail Launcher™ work.

Launcher Technology for Difficult Soils

Whether the challenge is a karst-affected limestone borehole or a swelling clay borehole, the Soil Nail Launcher™ installs without depending on either material's cooperation during conventional drilling. GSI's horizontal drains capability supports this step.

Where relevant, landslide emergency response is factored into the Texas project plan from day one.

Texas Landslide Repair Process

GSI follows a systematic five-step process to deliver landslide repair solutions in TxDOT corridors and beyond.

Step 1

Site Assessment

GSI engineers evaluate conditions and severity at your Texas site.

Step 2

Root Cause Investigation

In-house geologists investigate the specific conditions driving the issue, referencing Texas's Edwards Limestone Balcones Escarpment, Gulf Coastal Plain clay, and Trans-Pecos formations.

Step 3

Engineered Solution Design

Custom design matched to Texas's site-specific geology, hydrology, and infrastructure loading.

Step 4

Design/Build Execution

One team executes the engineered solution under a single TxDOT-ready contract.

Warranty

Design/build/warranty coverage on every landslide repair solution installed in Texas.

Warranty

Design/build/warranty coverage on every landslide repair solution installed in Texas.

Washington landslide repair — GSI Soil Nail Launcher deployed on Cascade highway slope

Why Texas Trusts GSI for Landslide Repair

Engineered for Texas's conditions. GSI designs Texas slope repairs around the state's genuine geologic split — Balcones Escarpment limestone versus Blackland Prairie expansive clay — not a single approach applied statewide. This is reinforced by GSI's work in general contractors and asset owners.

Design/build delivery. A single accountable team delivers design and build — removing the handoff delays between design and field work.

TxDOT specification compliance. Project records and construction methods conform to DOT requirements from first submittal.

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Client Reviews

Landslide Repair for Infrastructure in California

“I would like to thank you and the county for repairing the road slide on Dunne avenue. The repair is excellent and the contractors were very efficient and skilled. You personally did a great job of providing information about the status of the project. My family appreciates your efforts.”

Landslide Repair for Homeowner in Colorado

I would like this to be a letter of appreciation and gratitude on a job well done. Our house was first threatened by a landslide back in June, 2017 and it has been a journey that has been both stressful and scary. And yet, every cloud has a silver lining and in this case the support, encouragement and character of everyone we met from GSI has indeed been a gift throughout this journey.

GSI was recommended by Steve Pawlak and we met Nathan Thompson early on. Nathan is a person who inspires trust and our first impression was verified throughout the process that led to a retaining system that has saved our house. As with everyone, and I mean everyone we met, we felt we had a group of people who were on our side.

There were challenges that were overcome; the patience needed along with several visits to get the project underway, a renegotiated plan and bid when the insurance settlement squeezed the payment amount, and a time crunch that led to a change in plans where the panels were poured on the hillside, that allowed for the project to be started as quickly as possible.

The crew that showed up to do the work was respectful, always ready to explain what was happening and was also timely, hard working and ready to go the extra mile. A great group of people with positive attitudes who seemed to genuinely work well together.

Watching Spike work on that excavator was awe inspiring. One of my favorite moments was filming him on my phone to show my office secretaries at the Elementary School. I recorded a "holy shit" without knowing it when he pulled off an amazing stunt coming off a ledge and then being horrified when that came out while I was sharing the video at school. I was able to laugh later.

Thank you again and if I can ever serve as a reference, please let me know.

Emergency Landslide Repair in Wyoming

In 2017, another well above normal snowpack winter and heavy spring rains resulted in 23 new landslides, which damaged or threatened WYDOT roads. WYDOT turned to GSI to help respond to these emergency situations. GSI was able to respond very quickly and in most cases had personnel on site to assess the site within 24 hours. They would provide a proposal for remediation with a preliminary design and estimated costs within 48 hours in most cases. During 2017, GSI was selected to perform remediation with contracts at six separate sites. In all cases, they were prepared to mobilize to the sites and begin work within a week of being given notice to proceed.

A unique element of these emergency contracts was a partnership, between WYDOT and GSI, by which WYDOT provided some logistical support such as traffic control and providing water for drilling operations so that GSI could focus its efforts on performing the specialty work. This arrangement resulted in cost effective, efficient, successful projects. When responding to emergency landslide repair, time truly is money, the sooner a landslide can be remediated before it has a chance to grow, the less expensive it is to repair. In the past, WYDOT has experienced situations in which, landslides could possibly have been remediated quicker, experienced further failure during drawn out conventional design and contracting methods resulting in higher costs due to the additional failure. GSI uses various types of innovative geo-technology in their landslide remediation projects….

All of these projects were completed on schedule, even with cold weather conditions and snow storms ….

All of the stabilization projects that GSI completed for WYDOT included a warranty to repair any of the remediation that would happen to fail, but to date none of the work that they have performed has required any repair. I would highly recommend GeoStabilization International to perform emergency landslide and slope remediation work. They have the resources, personnel, and expertise to respond to your emergency in a timely, professional manner.

Landslide Repair in Texas

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