Leading Engineer TJ Ju becomes a US Citizen

By Jeffrey W. Coonse, PE / May 9, 2019

Congratulations to TJ Ju, PE, on becoming a US Citizen.  TJ is our lead geotechnical design engineer, a partner at Subsurface, a volunteer in his community and our friend.  We sat down with TJ to see what makes him tick. Briefly describe what you do all day. I design excavation shoring and deep foundation systems,…

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Micropile Foundations – Are they a good fit for this project?

By Jeffrey W. Coonse, PE / February 26, 2019

Micropile Foundations Is this project a good fit for micropiles? This is a question that I’m asked quite often.  Micropiles are an excellent deep foundation option to solve two common problems – difficult ground conditions or limited access. What are Micropiles? Let’s start with a brief description.  A micropile is a drilled and grouted replacement…

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level 5 leadership pyramid

Are you a Level 5 Leader?

By Jeffrey W. Coonse, PE / October 10, 2018

Leading in the Construction Industry HUMILITY + WILLJim Collins in “Good to Great” defines Level 5 Leaders as those who blend personal humility with intense professional will.  While Collin’s team didn’t set out to focus on leadership, during their research they observed that Level 5 leaders were at the helm of every Good to Great…

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Duke University East Campus Dorm Driven Soil Nail Wall

Why you should use driven soil nails.

By Jeffrey W. Coonse, PE / September 10, 2018
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Anchor rig drilling soil nails

Silica Exposure Control Programs in the Drilling Industry

By Jeffrey W. Coonse, PE / July 23, 2018

Silica Exposure Control Programs in the Drilling Industry We are all gaining familiarity with “Table 1. SPECIFIED EXPOSURE CONTROL METHODS WHEN WORKING WITH MATERIALS CONTAINING CRYSTALLINE SILICA” of OSHA’s Crystalline Silica Rule for Construction –  a title that kind of rolls right off the tongue.  Table 1 was OSHA’s attempt to guide contractors in reducing…

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Leadership Development

By Joseph Nixon, PE / July 23, 2018

Recently our Regional Managers, Alex Smith, PE and Jodie Nixon, PE, attended the Bell Leadership Institute’s Achievers™ conference in Raleigh, NC.  The Bell Leadership Institute is a leading organization in executive education and development helping organizations through its programs and services since 1972.  The focus of the Achievers™ conference is “become a great leader by building yourself…

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Virginia War Memorial Shoring Support

VA War Memorial featured in Foundation Drilling Magazine

By Greg Sullivan, PE / July 16, 2018

Subsurface Construction is honored to have the Virginia War Memorial as a Technical Featured article in Foundation Drilling Magazine July 2018, a publication of the Association of Drilled Shaft Contractors (ADSC). Subsurface designed and constructed a permanent anchored secant pile wall and a temporary soil nail wall for the expansion project. For the secant pile…

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Duke University Bed Tower Secant Wall

Secant Pile Wall

By Jeffrey W. Coonse, PE / March 19, 2018

Subsurface completed a permanent secant pile wall at the VA War Memorial.  The wall serves as a permanent basement wall and supports vertical load from the structure.

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Freddie Mac Ground Shoring FM6

First driven soil nail wall is allowed in Fairfax County, VA

By Jeffrey W. Coonse, PE / October 4, 2017

For the Freddie Mac Expansion project in McLean, VA, L.F. Jennings (G.C.) selected Subsurface Construction to design and install the ground shoring system around the perimeter of the site. Fairfax County has a shoring geotechnical review board with strict guidelines for allowable soil properties used in shoring design.  We were informed by the project geotechnical…

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Subsurface Construction Company Develops Senior Community Site

Subsurface Helps Develop Senior Community Site

By Jeffrey W. Coonse, PE / April 2, 2015

Developer taps into demand created by Triangle’s growing senior population DAVID BRACKEN RALEIGH With the Triangle’s job market proving itself to be among the best in the country in recent years, this region has been adding new residents at a faster rate than all but a handful of other metropolitan areas. That population growth is…

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