Engineering Marvels: Dams, Tunnels & Big Builds
Concrete canyons, rivers run backward, and tunnels bored through solid rock — the audacious megaprojects that reshaped America, and the workers who built them.
14 narrated stories — read them here, or hear them all in the app.
Hoover Dam
The Dam That Powered the Desert
How Black Canyon engineering helped electrify southern Nevada.
Grand Coulee Dam
The Dam That Rewrote Dry Country
How Grand Coulee rose from argument to transformation.
Fort Peck Dam
A Dam, a Depression, and a River of Workers
How Fort Peck Dam transformed a Montana community during the Depression.
Flaming Gorge Dam
How a Remote Canyon Became Flaming Gorge Dam
A canyon, a river, and the project that reshaped Daggett County.
Fontana Dam
The Dam War Built
A wartime rush for power transformed a mountain valley.
Elephant Butte Dam
The Dam That Rewrote the Rio Grande
How one federal dam reshaped water, farming, and power along the Rio Grande.
Gunnison Tunnel
The Tunnel That Brought a Valley to Life
How a hard-rock tunnel turned scarce water into farmland.
Hawks Nest Tunnel
When a Tunnel Became a National Reckoning
A Fayette County disaster that changed the fight over occupational disease.
Chicago Sanitary and Ship Canal
The Day Chicago Turned Its River Around
How a booming city used engineering to push sewage away from its drinking water.
Fairmount Water Works
How Fairmount Turned Water Into a Civic Spectacle
An engineering marvel built to clean up a growing city.
Lake Washington Ship Canal
When Seattle Moved the Water
A canal that lowered a lake and remade a city.
East Boston Tunnel
The Harbor Crossing That Changed Boston
How a tunnel under the harbor turned a water crossing into a daily routine.
Moses-Saunders Power Dam
When the River Was Remade
A binational dam that powered a region and reshaped lives.
Mackinac Bridge
When the Straits Finally Gave Way
How ferries, politics, and engineering became one long crossing.
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