• Twitter
  • Facebook
  • LinkedIn
  • YouTube
GeoPrac.net

Our Sponsors

  • Home
  • About
    • Our Sponsors
  • Articles
  • News
    • Search By Tag
  • Events
    • Events Main
    • Add an Event
    • Webinars
    • Conferences
    • Calls For Abstracts
  • Resources
    • Links
  • Contact Us
News Ticker
  • [ July 11, 2025 ] World Record Rockfall Barrier Test – 12,500 kJ! Geologic Hazards
  • [ July 9, 2025 ] Cool Geohazard Instrumentation Project Geologic Hazards
  • [ July 7, 2025 ] New Guidance for Wind Turbine Foundations Available Resources
  • [ April 30, 2025 ] NZGS Looking For Comments on Slope Stability Document Available Resources
  • [ April 7, 2025 ] In Memoriam: Richard Goodman (1935-2025) In Memoriam
HomeNewsProject RelatedVideo Tour of NY Subway Mega-Projects

Video Tour of NY Subway Mega-Projects

February 11, 2013 rockman Project Related Comments Off on Video Tour of NY Subway Mega-Projects
In this Tuesday, Jan. 29, 2013 photo, contractors work on the East Side Access project beneath midtown Manhattan, in New York.

Share this:

  • Tweet
  • Click to email a link to a friend (Opens in new window) Email
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on WhatsApp (Opens in new window) WhatsApp
  • More
  • Pocket
  • and
  • article
  • below
  • included
  • post
  • published
  • says
  • the
  • video
  • was
Previous

DFI 2013 Awards: Call for Entries

AP1000 Becker Hammer DrillNext

Novotech Launches Becker Penetration Test Software (NovoBPT)

Related Articles

Nortex employees stabilizing Houston area freeway with TerraThane Polyurethane Foam
Press Releases

Nortex and TerraThane Stabilize Houston Area Highways

May 1, 2015 rockman Press Releases Comments Off on Nortex and TerraThane Stabilize Houston Area Highways

Houston’s Highways, Some of Busiest in Nation, Use Innovative TerraThane Polyurethane Foam Technology to Repair Bad Bridge Approaches, Uneven Joints, and Roadway Depressions.

Nortex employees stabilizing Houston area freeway with TerraThane Polyurethane Foam

MOUNT AIRY, NC—Highways around Houston, TX, known as one the nation’s worst cities for traffic behind Los Angeles, D.C., and Atlanta, need constant repair, but can’t be closed while the work is done. Nortex Concrete Lift and Stabilization, Inc., a Ft. Worth, TX company, recently completed a whirlwind repair project on one of the city’s busiest corridors in the NE quadrant where I-10, 610 Loop, I-59, and I-69 feed millions of cars daily to, from, and around Harris County.

Normal groundwater erosion beneath the highways causes the concrete highway slabs to drop, roadway depressions, uneven bridge approaches, and uneven joints that make driving bumpy and uncomfortable, dangerous, and causes severe wear and tear on automobiles.

To make the repairs, the Texas Department of Transportation, TXDOT, brought in Nortex. The company carefully planned out the repairs for the half million pound project, and sent out four crews each with it’s own box truck rig to use a relatively new technology called “foamjacking.” Foamjacking uses high-density polyurethane foam to fill the subterranean voids, and lift the concrete slabs to proper level. “We’ve been lifting and stabilizing roadways with polyurethane foam since we got into the business back in 2003,” says Casey Derosa, asst. gen. mgr. of Nortex. “It’s a far superior method versus the old way of mudjacking.” Mudjacking is a ubiquitous term for a mix of mud, sand, cement, crushed limestone, and water hydraulically pumped into large holes drilled into the concrete slabs to fill voids and level the slabs. Mudjacking uses more and much larger equipment, and requires larger holes to be drilled. It typically requires the roadway to be closed much longer than foamjacking, and takes more time to clean up.

[Editor] Click through for the rest of the press release from GeoPrac sponsor NCFI Polyurethanes. [/Editor]

[…]

Share this:

  • Tweet
  • Click to email a link to a friend (Opens in new window) Email
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on WhatsApp (Opens in new window) WhatsApp
  • More
  • Pocket
Pinkerton Tunnel
Press Releases

Historic Pennsylvania Tunnel Reopens with Help From NCFI’s TerraThane Polyurethane Foam

January 26, 2016 rockman Press Releases Comments Off on Historic Pennsylvania Tunnel Reopens with Help From NCFI’s TerraThane Polyurethane Foam

Pinkerton TunnelMOUNT AIRY, NC—A $2 million tunnel construction project on the Great Alleghany Passage (GAP) is reopened to the public with help from a geotechnical polyurethane foam called TerraThane, by US company, NCFI Polyurethanes.

The GAP rail-trail is 150 miles of hiking and biking between Cumberland, Md, and Pittsburgh, Pa. created along the former railway line. In Cumberland, the GAP joins the C&O Canal Towpath, creating a continuous 335-mile long trail experience all the way to Washington, DC. It’s become a favorite biking destination for people from around the Mid-Atlantic states. One of its main tunnels, the Pinkerton Tunnel, an 849-foot former Western Maryland Railway tunnel, has been closed since 1975 due to erosion and unstable conditions. The Allegheny Trail Alliance, the organization that built and now maintains the 150-mile GAP, and the Somerset County Rails-to-Trails Association (SCRTA), wanted the tunnel reopened and helped fund the project.

[Editor] Click through for the rest of the press release from GeoPrac sponsor, NCFI Polyurethanes (makers of TerraThane). [/Editor]

[…]

Share this:

  • Tweet
  • Click to email a link to a friend (Opens in new window) Email
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on WhatsApp (Opens in new window) WhatsApp
  • More
  • Pocket
Project Related

Video: DeWind One-Pass Trenching – Hill AFB Contamination Project

April 18, 2016 rockman Project Related Comments Off on Video: DeWind One-Pass Trenching – Hill AFB Contamination Project

This project video seems a few years old, but it’s relatively new on YouTube and it’s a fantastic case study of the slick method of installing groundwater interception trenches using DeWind’s remarkable one-pass trenching technology. […]

Share this:

  • Tweet
  • Click to email a link to a friend (Opens in new window) Email
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on WhatsApp (Opens in new window) WhatsApp
  • More
  • Pocket

Our Sponsors

Upcoming Events

Check out these upcoming events for geoprofessionals! You can submit your own events, or go to calendar view as well.

Notice
There are no upcoming events.

Our Sponsors

Random Post by Image (Feeling Lucky?)

  • The Titanic wreck didn't sink into the sediment because it rests on a million year old marine landslide.
  • Dr. Jesus E. Gomez joins GEI Consultants
  • Roof drills on the TBM installing 20-ft long rock bolts in the ceiling of the Niagara Tunnel
Follow on Facebook
Recent Comments
  • Randy Post on Video of Highway 101 Landslide in California
  • GE Reviewer on San Francisco Millennium Tower Has Settled 16 Inches
  • Agus on New FHWA Soil Nail Manual Addresses LRFD, Hollow Bars
  • geoengineer Spain on Engineering Geologists vs Geological Engineers vs Geotechnical Engineers
  • Blaine J. Guidry, P.E. on A Whole Lotta Shakin’ Goin’ On: Center for Geotechnical Modeling Facilitates Seismic Research

Copyright © 2007-2020 by Randy Post