Slide Rail System Provides Necessary Support for Storm Sewer Installation

January 22, 2018

A Northern Virginia contractor was tasked with installing a 42-inch storm sewer line via boring. The project required a linear run of 24-ft, a width of 12-ft and a depth of 22-ft in a clay mixture that the competent person classified as Type-C soil. The project would be located next ...

Hydraulic Vertical Shores Used for the Installation of Water and Sewer Lines

January 19, 2018

A Northern Phoenix contractor recently completed the installation of water and sewer lines for a new housing development that will host 1,600 new homes. The project required a linear run of more than 4,000-ft, a width of 36-ft and depths ranging from 5 to 12 feet. The competent person on site ...

National Trench Safety Announces Key Organizational Promotions and Additions

January 19, 2018

HOUSTON, T.X.—National Trench Safety, LLC (NTS), a Houston-based company specializing in the rental and sales of trench and traffic safety equipment, trench and traffic safety engineering, and OSHA-compliant training classes, announced key organizational promotions and an addition to its team today. First, the Company has promoted Wes Jones to the ...

Engineers Corner: A Closer Look at Site Specific Shoring Plans

December 13, 2017

Site specific shoring plans originated in response to OSHA Subpart P-1926.652(c) (4) Option 4, Design by an Engineer. In the standard, OSHA states: 1926.652(c)(4)(i)- Support systems, shield systems, and other protective systems not utilizing Option 1, Option 2 or Option 3, above, shall be approved by a registered professional engineer. ...

Slide Rail System Used for Waste Water Treatment Plant Upgrade

November 30, 2017

A South Carolina contractor performed the installation of several chemical junction boxes. The project required a linear run of 16-ft with a width of 16-ft and a depth of 12-ft. The competent person on site classified the soil as clay wet Type-C-80 soil. The contractor needed to properly secure the ...

Trench Shields Provides Positive Shoring for the Installation of a new 24-inch Gas Pipeline

November 30, 2017

A Northern Texas contractor had been tasked to install a 24-inch natural gas pipeline and tying it into an existing line. The project required a linear run of 35-ft with a width of 12-ft and a depth of 9-ft. After carefully examining the soil, the competent person on site classified ...

Engineer’s Corner: The Major Entities Involved in Producing a Shoring System

November 1, 2017

Roles and Responsibilities This article looks at the roles of major players involved in producing a shoring system, as well as their responsibilities. One way to do this is by looking at risk and litigation when something goes wrong. In the United States all industries are subject to litigation, this ...

Site-Specific Shoring for Sink Hole and Replacement of Storm Sewer Line

November 1, 2017

A Northwest California contractor had been tasked to replace 96-inch storm drain which failed and created a sinkhole in a busy intersection. The project required a linear run of 133-ft with a width of 14-ft and a depth of 25-ft. The competent person on site classified the medium clay soil ...

Slide Rail System Provides Shoring For Sewer Infrastructure Upgrade

November 1, 2017

A South Carolina contractor was tasked with the construction of two new cast-in place structures to support existing and future sewer infrastructure. The new structures would be five-sided connecting to an existing 42-inch to a 54-inch sewer main with the second structure to be tied into a 64-inch sewer main.  The ...

Engineer’s Corner: OSHA Soil Types and Their Impact on Shoring Systems

September 16, 2017

In almost all cases, a Competent Person must first classify soil in accordance with the OSHA Appendix A Soil Classification prior to selecting open cut sloping or a manufacturer shoring system for a project. The appendix outlines three soil types in descending order of stability, Type A, Type B, and ...