Why Infrastructure Costs So Much

A new book details what planners already know: cost estimates for major infrastructure projects are usually a farce. Another book foretells just how much new infrastructure will be needed in the coming waves of climate migration.

1 minute read

April 14, 2023, 6:00 AM PDT

By Josh Stephens @jrstephens310


“Bent Flyvbjerg’s ‘iron law of megaprojects’ holds that only 47% of projects finish on-budget; 8.5% finish on-budget and on-time; and 0.5% finish on-budget, on-time, and deliver their intended benefits. Among the most perilous categories: nuclear storage, Olympic Games, dams, and information technology projects. Projects friendly to urban planners, like bus rapid transit, rail, and buildings don’t fare much better.”

“Whether they serve the public sector or private sector, they all have over a 70% chance of cost overruns. And ‘over-budget’ doesn’t mean a dollar or two. In many cases, overages reach 50% or 100% of a project’s original budget.”

“This is why we can't have nice things. Or, rather, this is why we can't have nicer, cheaper, and more timely nice things.”

Displacement, by journalist Jake Bittle, which describes the type of geographic displacement that the early effects of climate change are causing and foretells the dramatic impacts of climate change a few decades from now.”

“The connection between the two books is chilling.... Major projects, and many of them, are going to be required both to mute the effects of climate change in vulnerable places and to accommodate the migrants in resilient places.”

Saturday, April 8, 2023 in California Planning & Development Report

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

July 2, 2025 - Mother Jones

Close-up of park ranger in green jacket and khaki hat looking out at Bryce Canyon National Park red rock formations.

National Parks Layoffs Will Cause Communities to Lose Billions

Thousands of essential park workers were laid off this week, just before the busy spring break season.

February 18, 2025 - National Parks Traveler

Paved walking path next to canal in The Woodlands, Texas with office buildings in background.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50

A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

February 19, 2025 - Greg Flisram

Screenshot of shade map of Buffalo, New York with legend.

Test News Post 1

This is a summary

0 seconds ago - 2TheAdvocate.com

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

18 minutes ago - Mother Jones

test alt text

Test News Headline 46

Test for the image on the front page.

March 5 - Cleantech blog