D. Njenga

Dennis Njenga is a civil engineer and the founder of Construction Frontier. He studied a B.Sc. in Civil Engineering at Jomo Kenyatta University of Agriculture and Technology (JKUAT) and the Kenya Institute of Highways and Building Technology (KIHBT), with a final-year major in highways and transportation engineering and advanced studies in major engineering project performance at the University of Leeds, UK.  He provides engineering-led, execution-focused analysis and translates engineering practice into commercial and investment insights on construction practice, materials, equipment, technology, and long-term infrastructure performance in Africa and emerging markets.

Construction Workers' Suicide Rates 8 Critical Causes and Proven Prevention Strategies
Articles Construction Workforce Safety, Mental Health, & Human Performance

Construction Workers’ Suicide Rates: 8 Critical Causes and Proven Prevention Strategies

Construction Workers’ Suicide Rates: 8 Critical Causes and Proven Prevention Strategies Construction workers’ suicide rates rank among the highest of any profession globally, with male workers in the United States dying by suicide at a rate 75% above the general male population. In 2022, an estimated 6,000 construction workers died by suicide, six times the […]

Construction Workers’ Suicide Rates: 8 Critical Causes and Proven Prevention Strategies Read More »

create a featured article image depiciting How to Choose the Right Contract Strategy EPC vs PPP vs Design-Build Explained
Articles Civil Engineering & Construction Practices

How to Choose the Right Contract Strategy: EPC vs PPP vs Design-Build Explained

How to Choose the Right Contract Strategy: EPC vs PPP vs Design-Build Explained Choosing the right contract strategy is one of the most consequential decisions an infrastructure owner makes before construction begins. The selected model (EPC, Design-Bid-Build, Design-Build, or PPP) determines how risk is shared, how financing is structured, and how long-term asset performance is

How to Choose the Right Contract Strategy: EPC vs PPP vs Design-Build Explained Read More »

Megaproject Lessons Learned 3 Verified Case Studies That Expose What Separates Success from Failure
Articles Civil Engineering & Construction Practices

Megaproject Lessons Learned: 3 Verified Case Studies That Expose What Separates Success from Failure

Megaproject Lessons Learned: 3 Verified Case Studies That Expose What Separates Success from Failure The Panama Canal expansion delivered. Crossrail lost 3.5 years and GBP 4 billion. The Boston Big Dig became the most documented cost collapse in US infrastructure history. Three programmes, three continents, and a combined capital value exceeding USD 38 billion. The

Megaproject Lessons Learned: 3 Verified Case Studies That Expose What Separates Success from Failure Read More »

EPC vs Design-Bid-Build vs PPP 7 Powerful Differences Every Infrastructure Leader Must Know
Articles Civil Engineering & Construction Practices

EPC vs Design-Bid-Build vs PPP: 7 Powerful Differences Every Infrastructure Leader Must Know

EPC vs Design-Bid-Build vs PPP: 7 Powerful Differences Every Infrastructure Leader Must Know The EPC vs Design-Bid-Build vs PPP decision is one of the most consequential choices in infrastructure procurement. Each model distributes risk, cost, and control differently, and selecting the wrong construction contract model for a given project can trigger delays, disputes, and fiscal

EPC vs Design-Bid-Build vs PPP: 7 Powerful Differences Every Infrastructure Leader Must Know Read More »

Managing Mega Construction Projects 10 Proven Strategies to Overcome Critical Challenges
Articles Civil Engineering & Construction Practices

Managing Mega Construction Projects: 10 Proven Strategies to Overcome Critical Challenges

Managing Mega Construction Projects: 10 Proven Strategies to Overcome Critical Challenges Managing mega construction projects is one of the most demanding disciplines in modern infrastructure delivery. These are capital programmes valued at $1 billion or more, built across compressed timelines, complex geographies, and shifting political landscapes; yet the organisations that master their execution consistently turn

Managing Mega Construction Projects: 10 Proven Strategies to Overcome Critical Challenges Read More »

What Is FEED in Construction? 5 Critical Insights Driving Mega Project Success
Articles Civil Engineering & Construction Practices

What Is FEED in Construction? 5 Critical Insights Driving Mega Project Success

What Is FEED in Construction? 5 Critical Insights Driving Mega Project Success Front-End Engineering Design (FEED) is the foundational planning phase in mega construction projects, during which the technical scope, cost estimates, and risk frameworks are defined with sufficient precision to support a Final Investment Decision (FID). Executed after feasibility studies and before full EPC

What Is FEED in Construction? 5 Critical Insights Driving Mega Project Success Read More »

Common Delays in African Construction Projects 9 Costly Setbacks and Proven Ways to Avoid Them
Articles Civil Engineering & Construction Practices

Common Delays in African Construction Projects: 9 Costly Setbacks and Proven Ways to Avoid Them

Common Delays in African Construction Projects: 9 Costly Setbacks and Proven Ways to Avoid Them Common delays in African construction projects cost governments and investors billions every year, pushing completion dates back by years and eroding investor confidence across the continent. From Nairobi to Lagos and Addis Ababa to Dakar, the same structural setbacks recur

Common Delays in African Construction Projects: 9 Costly Setbacks and Proven Ways to Avoid Them Read More »

Construction Risk Management: 10 Crucial Facts You Must Know to Avoid Costly Project Failures
Articles Civil Engineering & Construction Practices

Construction Risk Management: 10 Crucial Facts You Must Know to Avoid Costly Project Failures

Construction Risk Management: 10 Crucial Facts You Must Know to Avoid Costly Project Failures Construction risk management is the structured process of identifying, assessing, and controlling threats that could derail a project’s schedule, budget, safety record, or structural integrity. Across nearly 1,500 global projects reviewed, the average cost overrun was 27%; more than 15% exceeded

Construction Risk Management: 10 Crucial Facts You Must Know to Avoid Costly Project Failures Read More »

Infrastructure Lifecycle Costs 5 Critical Reasons Traditional Procurement Models Fail to Optimise Value
Articles Civil Engineering & Construction Practices

Infrastructure Lifecycle Costs: 5 Critical Reasons Traditional Procurement Models Fail to Optimise Value

Infrastructure Lifecycle Costs: 5 Critical Reasons Traditional Procurement Models Fail to Optimise Value Infrastructure lifecycle costs encompass all financial obligations an asset incurs from initial planning through decommissioning, including capital construction, operations, maintenance, rehabilitation, and disposal. Across roads, bridges, energy networks, water systems, and mass transit systems, these cumulative costs routinely reach three to four

Infrastructure Lifecycle Costs: 5 Critical Reasons Traditional Procurement Models Fail to Optimise Value Read More »

Contract Types Explained: 5 Essential Models from FIDIC to Design-Build for Successful Project Delivery
Articles Civil Engineering & Construction Practices

Contract Types Explained: 5 Essential Models from FIDIC to Design-Build for Successful Project Delivery

Contract Types Explained: 5 Essential Models from FIDIC to Design-Build for Successful Project Delivery Contract types explained: every infrastructure project begins with a contractual framework that determines who assumes financial risk, how scope changes are managed, and whether a delayed handover triggers penalties or negotiations. The five primary construction contract types: Lump Sum, Cost-Plus, Time

Contract Types Explained: 5 Essential Models from FIDIC to Design-Build for Successful Project Delivery Read More »

Scroll to Top