Steep Slope Drilling in New Hampshire

Steep Slope Drilling in New Hampshire

Engineered steep slope drilling across New Hampshire—I-93 Franconia Notch. Design/build solutions for NHDOT corridors and critical infrastructure.

Request Site Assessment
Spider excavator drilling on steep slope stabilization

Steep Slope Drilling Across New Hampshire

New Hampshire's steep slope drilling needs concentrate in Franconia Notch and the White Mountains, where I-93's mountain pass corridor crosses granite faces NHDOT has long managed with limited equipment options given the terrain's combination of extreme grade and harsh weather-window construction constraints.

GSI's SPIDER excavator experience shapes how these situations get addressed across the state.

Geohazard Mitigation in New Hampshire

Slope too Steep to Reach?

Request Assessment

See What We've Built

Explore GSI Solutions

How GSI Delivers Steep Slope Drilling in New Hampshire

Track-Mounted and Walking Excavator Drilling

The compact footprint of a track-mounted rig matters most in Franconia Notch, where narrow shoulder space along I-93 leaves little room for a conventional wheeled drill to set up. GSI's Soil Nail Launcher™ capability supports this step.

Anchored Drill Platforms

No natural bench exists on many White Mountain granite faces, so GSI anchors the drilling platform to the rock itself rather than relying on a graded working surface that isn't there. This is one application of GSI's broader soil nailing expertise.

Rope Access Drilling

When even an anchored platform can't reach a section of exposed granite, technicians go in on rope, drilling by hand within New Hampshire's short mountain construction season. GSI's engineers experience informs this approach.

This approach is informed by GSI's broader transportation infrastructure work across New Hampshire.

New Hampshire Steep Slope Drilling Process

GSI follows a systematic five-step process to deliver steep slope drilling solutions in NHDOT corridors and beyond.

Step 1

Site Assessment

GSI engineers evaluate conditions and severity at your New Hampshire site.

Step 2

Root Cause Investigation

In-house geologists investigate the specific conditions driving the issue, referencing New Hampshire's White Mountain granite and metamorphic schist terrain.

Step 3

Engineered Solution Design

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

Step 4

Design/Build Execution

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

Warranty

Design/build/warranty coverage on every steep slope drilling solution installed in New Hampshire.

Warranty

Design/build/warranty coverage on every steep slope drilling solution installed in New Hampshire.

Spider excavator on steep slope stabilization under bridge

Why New Hampshire Trusts GSI for Steep Slope Drilling

Engineered for New Hampshire's conditions. GSI's New Hampshire steep slope capability is built for both Franconia Notch's extreme granite terrain and the state's compressed mountain construction season. It's backed by GSI's broader general contractors and our case studies capability.

Design/build delivery. One integrated team owns the full scope — eliminating the gaps that traditional design-bid-build creates.

NHDOT specification compliance. Design records and field practices satisfy state DOT specifications from the project's first submission.

View Our Project Gallery

Client Reviews

 

Slope Stabilization in Virginia

I’d like to take a moment and thank you for sending a great crew for the stabilization at [our site]. With the leadership of Dylan Battaglia and his crew, safety was always incorporated in each task that was performed. Dylan communicated each phase with [our company] and also gave great instruction to all his employees during the JSA process. Great job!

I’d like to ask if you could send the same crew back for the final phase of the project and wrap the project up in a positive manner. Thanks again for a job well done, and wish you and your family the best of the holidays. Please give your crew my best.

Slope Remediation for Mining Operations in Ontario, Canada

[Our] team wishes to acknowledge for the excellent work that Courtney Smith and his team performed for us this summer at [our mine]. Courtney was able to provide prompt input and provide some innovative approaches to some of the challenges we faced this summer. Of particular note, the entire summer was performed without an injury or loss time incident, and many of our slope remediation structures were repaired and installed allowing us to continue safely mining. Courtney and his team worked hard, safely, and diligently at each task and was able to complete everything we assigned to the group in a timely fashion. In addition, they maintained a positive attitude despite challenging conditions. We look forward to having Courtney and/or Adam back to site next summer tackling our next set of challenges with slope wall remediation…. Please extend our appreciation for the great work Courtney and his team completed this year. As in their words, we look forward in seeing the team “dominate” any future challenges for our next year’s campaign.

Slope Stabilization for Pipeline Project in Pennsylvania

[We were] contracted to install … 35 miles of 20” steel pipeline [in] Pennsylvania. As part of the project, the pipeline had to be installed on a 35 [degree] slope approximately 900 feet in length… The GSI crew arrived on project ready to go to work. The entire crew made safety the top priority and was a pleasure to work with. They installed the required stabilization in a very professional and timely matter and our client and I was very pleased with the results. I will not hesitate to employ GSI on future projects.

Steep Slope Drilling in New Hampshire

Start Your Project

GSI's engineers are ready to assess steep slope drilling conditions at your New Hampshire site.

Call (855) 579-0536

    How Can We Help?

    • Personal Info
    • Contact Info
    • Project Info
    ***Fees May Apply For Residential Site Visits***

    How Can We Help?

    • Personal Info
    • Contact Info
    • Project Info

    How Can We Help?

    • Personal Info
    • Contact Info
    • Project Info

    By using this website, you acknowledge and agree to our Privacy Policy.