100-Year-Old Law Explains Why There Are So Many Trucks on the Highway

A powerful lobby is more in interested in protecting its monopoly than lessening congestion and pollution.

1 minute read

August 11, 2017, 9:00 AM PDT

By James Brasuell @CasualBrasuell


Goods Movement

Miune / Shutterstock

"For many Americans, the experience of driving on a coastal highway like Interstate 5 in California can be a nightmare of dodging massive trucks hauling cargo between US cities," reports Erik Olsen.

According to Olsen, only 2 percent of domestic freight moving among the Lower 48 states moves by sea, despite the fact that about half the population lives near the coast.

The reason so much freight moves on the nation's roadways is the subject of Olsen's article, and credit goes to the Jones Act. The Jones Act, passed shortly after World War I, "preserves a monopoly for US-built, owned and operated ships to transport goods between US ports."

According to Olsen, the law was designed to protect American shipbuilding and "ensure that the US had ample ships to conduct international trade." The law didn't manage to protect the industry, however, and now "there are some 171 privately-owned US flagged ships today. Just 93 of them are Jones Act-eligible."

Thus, the consequences of the Jones Act in 2017 include higher costs for consumer goods as well as more freight on trucks. The latter, according to Olsen, "significantly increasing highways congestion, intensifying air pollution and further degrading the country’s infrastructure."

Olsen provides additional details about the consequences of the Jones Act, and discusses the business interests that have made the law virtually impossible to overturn.

Monday, August 7, 2017 in Quartz

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

Use Code 25for25 at checkout for 25% off an annual plan!

Redlining map of Oakland and Berkeley.

Rethinking Redlining

For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

May 15, 2025 - Alan Mallach

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 14, 2025 - Diana Ionescu

Front of Walmart store with sign.

Walmart Announces Nationwide EV Charging Network

The company plans to install electric car chargers at most of its stores by 2030.

May 7, 2025 - Inc.

Public Market sign over Pike Place Market in Seattle, Washington with pop-up booths on street.

Seattle’s Pike Place Market Leans Into Pedestrian Infrastructure

After decades of debate, the market is testing a car ban in one of its busiest areas and adding walking links to the surrounding neighborhood.

May 15 - Cascade PBS

Yellow and silver light rain train in downtown Long Beach, California.

The World’s Longest Light Rail Line is in… Los Angeles?

In a city not known for its public transit, the 48.5-mile A Line is the longest of its kind on the planet.

May 15 - Secret Los Angeles

Man reaching for young girl sliding down playground slide.

Quantifying Social Infrastructure

New developments have clear rules for ensuring surrounding roads, water, and sewers can handle new users. Why not do the same for community amenities?

May 15 - Happy Cities