Krystal Nanan

Krystal is a civil engineer and project manager with an MSc in Construction Engineering and Management. Her experience includes the project management of major infrastructure projects, construction supervision, and the design of various infrastructure elements including roadway, pavement, traffic safety elements and drainage. Krystal is also a published author with the Transportation Research Board in Washington, D.C.

Articles by Krystal Nanan


Testing In-Situ Stress: What You Need to Know and Why It Matters Testing In-Situ Stress: What You Need to Know and Why It Matters Testing In-Situ Stress: What You Need to Know and Why It Matters Testing In-Situ Stress: What You Need to Know and Why It Matters


Understanding the magnitude and nature of in-situ stresses is essential to help determine soil behavior and characteristics at the site...

6 Signs That Your Sewer System Needs Repair 6 Signs That Your Sewer System Needs Repair 6 Signs That Your Sewer System Needs Repair 6 Signs That Your Sewer System Needs Repair


Sewer problems are issues you hope to never have to deal with. However, sewer lines are susceptible to wear and damage, which can lead to...

Prevention Is Better Than Cure: How Remote Pipeline Inspections Save You Time and Money Prevention Is Better Than Cure: How Remote Pipeline Inspections Save You Time and Money Prevention Is Better Than Cure: How Remote Pipeline Inspections Save You Time and Money Prevention Is Better Than Cure: How Remote Pipeline Inspections Save You Time and Money


Camera inspection methods are becoming popular with home and business owners because unlike conventional methods, camera inspections allow...

The Dangers of Leaks in Slab-on-Grade Foundations: 5 Early Signs To Watch For The Dangers of Leaks in Slab-on-Grade Foundations: 5 Early Signs To Watch For The Dangers of Leaks in Slab-on-Grade Foundations: 5 Early Signs To Watch For The Dangers of Leaks in Slab-on-Grade Foundations: 5 Early Signs To Watch For


Cracks, leaks, bursts or other piping defects can often occur undetected in slab-on-grade foundations until physically manifesting on the...

Geotechnical Engineering Factors to Consider in Underground Pipeline Design and Installation Geotechnical Engineering Factors to Consider in Underground Pipeline Design and Installation Geotechnical Engineering Factors to Consider in Underground Pipeline Design and Installation Geotechnical Engineering Factors to Consider in Underground Pipeline Design and Installation


Installation methods, soil properties and conditions, external loads, and geotechnical hazards are some of the factors that engineers and...

4 Factors to Consider During Your Pipe Lining Project 4 Factors to Consider During Your Pipe Lining Project 4 Factors to Consider During Your Pipe Lining Project 4 Factors to Consider During Your Pipe Lining Project


Since its introduction in the early 1970s, CIPP lining has continuously evolved to become one of the most widely used forms of trenchless...

Q&A by Krystal Nanan


What are the 7 steps involved in a standard sliplining procedure? What are the 7 steps involved in a standard sliplining procedure? What are the 7 steps involved in a standard sliplining procedure? What are the 7 steps involved in a standard sliplining procedure?


Sliplining is one of the oldest trenchless methods of rehabilitating existing underground pipelines. This technique involves inserting and...

Why Is the sequential excavation method (SEM) preferred where existing structures such as sewers or subways can't be relocated? Why Is the sequential excavation method (SEM) preferred where existing structures such as sewers or subways can't be relocated? Why Is the sequential excavation method (SEM) preferred where existing structures such as sewers or subways can't be relocated? Why Is the sequential excavation method (SEM) preferred where existing structures such as sewers or subways can't be relocated?


Tunneling near existing structures, such as sewers and subways, usually presents a number of challenges. As tunnel boring machines (TBM)...

Why Is a steel casing pipe recommended for pipe ramming in the horizontal boring method? Why Is a steel casing pipe recommended for pipe ramming in the horizontal boring method? Why Is a steel casing pipe recommended for pipe ramming in the horizontal boring method? Why Is a steel casing pipe recommended for pipe ramming in the horizontal boring method?


Pipe ramming is a trenchless construction technique used to install underground utilities, pipes, ducts, conduits, and culverts. It...


Ground freezing, also known as artificial ground freezing, is a temporary soil stabilization technique typically used in the trenchless...

What are the differences between a TBM and a MTBM? What are the differences between a TBM and a MTBM? What are the differences between a TBM and a MTBM? What are the differences between a TBM and a MTBM?


Tunnel boring machines (TBMs) and microtunnel boring machines (MTBMs) are used to construct underground tunnels and passages with circular...

How does a tunnel boring machine (TBM) control the subsidence of the ground above the trenchless installation? How does a tunnel boring machine (TBM) control the subsidence of the ground above the trenchless installation? How does a tunnel boring machine (TBM) control the subsidence of the ground above the trenchless installation? How does a tunnel boring machine (TBM) control the subsidence of the ground above the trenchless installation?


Soil subsidence, also known as settlement, is defined as a downward vertical movement of the ground, generally caused by changes in...

What are the most common causes of residential water or sewer disruption? What are the most common causes of residential water or sewer disruption? What are the most common causes of residential water or sewer disruption? What are the most common causes of residential water or sewer disruption?


Water and wastewater plumbing are some of the most crucial elements in any residential or commercial building. However, since these...

What advantages does jet cutting have over other trenchless methods? What advantages does jet cutting have over other trenchless methods? What advantages does jet cutting have over other trenchless methods? What advantages does jet cutting have over other trenchless methods?


Jet cutting, also known as hydro excavation, involves using pressurized water to move or remove a specified area of soil. High-pressure...

What’s the difference between microtunneling vs. guided boring? What’s the difference between microtunneling vs. guided boring? What’s the difference between microtunneling vs. guided boring? What’s the difference between microtunneling vs. guided boring?


Microtunneling and guided boring are often erroneously used interchangeably in the construction industry. While both these trenchless...

When should I choose pipe ramming as my preferred trenchless method? When should I choose pipe ramming as my preferred trenchless method? When should I choose pipe ramming as my preferred trenchless method? When should I choose pipe ramming as my preferred trenchless method?


Pipe ramming is a trenchless construction technique used to install horizontal underground pipes, ducts, and culverts. This method involves...

How Does Ground Penetrating Radar Equipment Work? How Does Ground Penetrating Radar Equipment Work? How Does Ground Penetrating Radar Equipment Work? How Does Ground Penetrating Radar Equipment Work?


Ground penetrating radar (GPR) is a non-destructive geophysical technique used to determine the cross-sectional profiles of subsurface...

Why is horizontal directional drilling better for the environment? Why is horizontal directional drilling better for the environment? Why is horizontal directional drilling better for the environment? Why is horizontal directional drilling better for the environment?


Horizontal directional drilling (HDD), also known as directional boring or horizontal earth boring, involves using a surface drilling rig...

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