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.

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Articles by Krystal Nanan


close-up-photo-of-gray-metal-pipes close-up-photo-of-gray-metal-pipes close-up-photo-of-gray-metal-pipes close-up-photo-of-gray-metal-pipes


Water and sewage pipelines can be constructed from various materials. However, ductile iron is widely embraced as the material of choice,...

construction site with workers in yellow vests and many pipes construction site with workers in yellow vests and many pipes construction site with workers in yellow vests and many pipes construction site with workers in yellow vests and many pipes


All pumps are not created equal. The right pumping equipment can reduce dewatering time, ensure pump longevity, and minimize construction...

All About Potholing: What Utility Exposure Method Is Right for You? All About Potholing: What Utility Exposure Method Is Right for You? All About Potholing: What Utility Exposure Method Is Right for You? All About Potholing: What Utility Exposure Method Is Right for You?


If there isn't proper care while exposing utilities, there could be severe consequences that affect construction workers, end-users,...

Excavation Safety First: Top 5 Digging Disasters Excavation Safety First: Top 5 Digging Disasters Excavation Safety First: Top 5 Digging Disasters Excavation Safety First: Top 5 Digging Disasters


We've put a spotlight on some of the most catastrophic digging disasters to occur in the last two decades to highlight the need for proper...

New and Innovative Trenchless Solutions for Oil and Gas Pipeline Crossings New and Innovative Trenchless Solutions for Oil and Gas Pipeline Crossings New and Innovative Trenchless Solutions for Oil and Gas Pipeline Crossings New and Innovative Trenchless Solutions for Oil and Gas Pipeline Crossings


The emergence of groundbreaking 21st-century technologies, such as AR, VR and unmanned aerial vehicles (UAVs or drones) have helped to...

How Drones Are Revolutionizing Oil and Gas Pipeline Inspections How Drones Are Revolutionizing Oil and Gas Pipeline Inspections How Drones Are Revolutionizing Oil and Gas Pipeline Inspections How Drones Are Revolutionizing Oil and Gas Pipeline Inspections


A BusinessWire report projects the Global Oil & Gas Drones Market to reach $4 billion by 2020. Drones have rapidly garnered interest in...

Construction site with pipes trailers equipment and workers with trees in the background Construction site with pipes trailers equipment and workers with trees in the background Construction site with pipes trailers equipment and workers with trees in the background Construction site with pipes trailers equipment and workers with trees in the background


HDD is a minimal impact trenchless installation and construction method used to install several types of underground structures and...

How 3D Laser Scanning Is Removing the Guesswork From Pipeline Condition Assessments How 3D Laser Scanning Is Removing the Guesswork From Pipeline Condition Assessments How 3D Laser Scanning Is Removing the Guesswork From Pipeline Condition Assessments How 3D Laser Scanning Is Removing the Guesswork From Pipeline Condition Assessments


3D laser scanning equipment produces a highly detailed three-dimensional model of the pipeline, providing operators with a clear visual...

The Role of Hydrogeology in Trenchless Construction The Role of Hydrogeology in Trenchless Construction The Role of Hydrogeology in Trenchless Construction The Role of Hydrogeology in Trenchless Construction


Knowing the characteristics of groundwater near the drill site and understand how it can affect drilling operations is essential. Therefore...

quiz written in notebook surrounded by pencils and clock quiz written in notebook surrounded by pencils and clock quiz written in notebook surrounded by pencils and clock quiz written in notebook surrounded by pencils and clock


Pipe bursting, like all other trenchless technologies, has its benefits and limitations. Take this quick 12-question quiz to find out how...

World Trenchless Day: Top Innovations Driving Growth in the Trenchless Industry World Trenchless Day: Top Innovations Driving Growth in the Trenchless Industry World Trenchless Day: Top Innovations Driving Growth in the Trenchless Industry World Trenchless Day: Top Innovations Driving Growth in the Trenchless Industry


Discover these emerging technologies that are helping to grow trenchless construction and rehabilitation.

The Definitive Guide to Trenchless Pipeline Removal The Definitive Guide to Trenchless Pipeline Removal The Definitive Guide to Trenchless Pipeline Removal The Definitive Guide to Trenchless Pipeline Removal


Learn why trenchless pipeline removal is especially ideal for applications where it isn't possible to remove pipelines via conventional...

Emerging Trenchless Rehabilitation Technologies: Kevlar Reinforced Composite Lining Systems Emerging Trenchless Rehabilitation Technologies: Kevlar Reinforced Composite Lining Systems Emerging Trenchless Rehabilitation Technologies: Kevlar Reinforced Composite Lining Systems Emerging Trenchless Rehabilitation Technologies: Kevlar Reinforced Composite Lining Systems


The desirable properties of Kevlar make it ideal for lining systems. This liner’s corrosion, heat, and chemical resistance, as well as its...

How To Prevent Soil Heaving During Your Trenchless Project How To Prevent Soil Heaving During Your Trenchless Project How To Prevent Soil Heaving During Your Trenchless Project How To Prevent Soil Heaving During Your Trenchless Project


Soil heaving during trenchless construction has the potential to cause extensive damage to various types of structures and infrastructure....

QUIZ: Corrosion and Protection of Underground Pipelines QUIZ: Corrosion and Protection of Underground Pipelines QUIZ: Corrosion and Protection of Underground Pipelines QUIZ: Corrosion and Protection of Underground Pipelines


In this quiz, we will test your knowledge on the various types of trenchless detection, rehabilitation, and protection methods typically...

The Harmful Effects of Tree Root Infiltration on Potable Water Piping The Harmful Effects of Tree Root Infiltration on Potable Water Piping The Harmful Effects of Tree Root Infiltration on Potable Water Piping The Harmful Effects of Tree Root Infiltration on Potable Water Piping


Tree root infiltration can be a nightmare for many private and commercial property owners because they're difficult to detect and can also...

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...

red marker pen making checks in boxes on white paper red marker pen making checks in boxes on white paper red marker pen making checks in boxes on white paper red marker pen making checks in boxes on white paper


Guided boring machine maintenance requires keeping all fluid levels on the equipment full. Inspecting and washing drilling mud and other...

trenchless construction planning trenchless construction planning trenchless construction planning trenchless construction planning


The planning of a trenchless project is similar to that of conventional projects, taking into account geotechnical investigation, project...

Q&A by Krystal Nanan


When Should I Use Slurry Microtunneling on My Project? When Should I Use Slurry Microtunneling on My Project? When Should I Use Slurry Microtunneling on My Project? When Should I Use Slurry Microtunneling on My Project?


Microtunneling is a trenchless construction technique used to construct small- to medium-sized tunnels. During the microtunneling process,...

Is shoring and other trenching safety methods required during trenchless construction? Is shoring and other trenching safety methods required during trenchless construction? Is shoring and other trenching safety methods required during trenchless construction? Is shoring and other trenching safety methods required during trenchless construction?


While the term "trenchless" suggests the absence of trenches, there are instances where small excavations are needed during...

How does rock mechanics help engineers better understand how rocks will react to tunneling projects? How does rock mechanics help engineers better understand how rocks will react to tunneling projects? How does rock mechanics help engineers better understand how rocks will react to tunneling projects? How does rock mechanics help engineers better understand how rocks will react to tunneling projects?


Tunneling into rock is a relatively complex process, requiring careful project planning and analysis of site conditions. While rock may...

What is the role of bypass pumping and when is it used? What is the role of bypass pumping and when is it used? What is the role of bypass pumping and when is it used? What is the role of bypass pumping and when is it used?


Aging sewer pipelines is a growing concern in many municipalities. This issue has led to an increase in activity aimed at rebuilding or...

What is geomapping and how is it used in trenchless technology? What is geomapping and how is it used in trenchless technology? What is geomapping and how is it used in trenchless technology? What is geomapping and how is it used in trenchless technology?


Underground utility networks, such as natural gas pipelines, water lines and electrical lines can consist of millions of miles piping and...

What are the different types of gel strengths? What are the different types of gel strengths? What are the different types of gel strengths? What are the different types of gel strengths?


The gel strength of drilling mud (or drilling fluid) is the shear stress in the fluid at a low shear rate after it has been static for a...

Why is bottom hole treating pressure important to monitor? Why is bottom hole treating pressure important to monitor? Why is bottom hole treating pressure important to monitor? Why is bottom hole treating pressure important to monitor?


The first step in setting up a hydraulic fracture job is knowing the expected treatment rates and pressures. One of the most influential...

What equipment has improved wastewater management? What equipment has improved wastewater management? What equipment has improved wastewater management? What equipment has improved wastewater management?


Wastewater management involves the oversight of the processes and procedures used during the treatment of wastewater. This field ensures...

When should engineers take skin friction into account when writing mud specification for an HDD project? When should engineers take skin friction into account when writing mud specification for an HDD project? When should engineers take skin friction into account when writing mud specification for an HDD project? When should engineers take skin friction into account when writing mud specification for an HDD project?


In short, skin friction should always be considered when writing mud specifications for a horizontal directional drilling (HDD) project...

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...

What are the best trenchless rehabilitation procedures to consider? What are the best trenchless rehabilitation procedures to consider? What are the best trenchless rehabilitation procedures to consider? What are the best trenchless rehabilitation procedures to consider?


Many private and public sector organizations are turning to trenchless rehabilitation procedures to repair and maintain underground piping...

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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