The River Always Wins on the Second Try

John McPhee published *The Control of Nature* in 1989, the same year the Berlin Wall came down, which means two of the twentieth century's most ambitious engineering projects—one ideological, one hydrological—were being examined for structural integrity at roughly the same moment. Only one of them has since collapsed. The other, the Old River Control Structure on the Mississippi, still stands. Barely. McPhee's account of the Army Corps of Engineers' fight to keep the Mississippi from abandoning its current channel and pouring down the Atchafalaya was, at the time of publication, an elegant piece of narrative journalism about stubbornness dressed as infrastructure. Thirty-seven years later it reads like a slow-motion prophecy. Hurricane Katrina in 2005 did not break the Old River structure, but it broke the illusion McPhee was already quietly dismantling: that human engineering could indefinitely hold a negotiating position with a river carrying the drainage of forty percent of the continental United States. The levee failures in New Orleans were not the scenario McPhee described—he was focused on the capture problem upstream—but they were the same species of catastrophe, born of the same institutional confidence. The 2024 and 2025 flood seasons, with their increasingly erratic precipitation patterns driven by climate disruption McPhee never named, have made the Atchafalaya capture scenario not a geological curiosity but an active planning concern for FEMA and the state of Louisiana. He got the physics right. He got the timeline conservative.

What McPhee could not see—what almost no one writing environmental nonfiction in 1989 could see—was the degree to which climate change would accelerate the timetable on every scenario he described. The book treats the river's behavior as a function of geology and hydrology, which it is, but the variable McPhee holds roughly constant is precipitation volume and intensity. That variable has not been constant. The Mississippi River's discharge patterns have shifted measurably since 1989, and the spring flood pulse that the Old River Control Structure was engineered to manage now arrives with less predictability and sometimes greater force. McPhee's blind spot is not ignorance; it is the reasonable assumption of a journalist writing before the IPCC's first assessment report that the boundary conditions of the problem would remain stable. They have not. The book also carries the quiet assumption, common to its era, that the Corps of Engineers is the only relevant actor—that this is a story about federal technocrats versus geology. The politics of Louisiana's coastal erosion, the environmental justice dimensions of who lives behind which levees, the role of oil and gas canal-cutting in accelerating wetland loss—these are absent or peripheral. McPhee was writing a story about hubris and hydrology. The story has since acquired additional characters.

The passage that hits hardest now is McPhee's description of what would happen if the Mississippi succeeded in its capture: Baton Rouge and New Orleans would be left on a tidal estuary, their ports useless, their water intakes sucking salt. In 1989 this read as a dramatic hypothetical. In 2026, with saltwater intrusion already creeping up the lower Mississippi during low-water periods—as it did conspicuously in 2023—it reads as a description of a process already underway, just arriving by a different mechanism than the one McPhee anticipated. The river doesn't need to leave its channel entirely to make his nightmare partially real. It just needs the Gulf to advance. McPhee's prose, always controlled, always a little detached, now carries an unintended chill precisely because of that detachment. He describes catastrophe the way an engineer reads a gauge. The gauge has moved.

Within the broader conversation of the corpus, *The Control of Nature* occupies a peculiar position. It is not an environmentalist text in any activist sense—McPhee does not argue for letting the river go, nor does he condemn the Corps. He simply documents the terms of the contest. This makes it both less didactic and more durable than many of its contemporaries. It shares intellectual DNA with the systems-thinking strain that runs through the corpus's environmental thread, from the Brundtland-era concerns of the late 1980s through to the more explicitly political frameworks of later works. McPhee gave his successors something valuable: a demonstrated method for writing about infrastructure as narrative, about engineering as character study, about geology as plot. The book's influence is less ideological than formal. It taught a generation of writers that you could make a reader care about sediment transport rates.

Given that the Old River Control Structure is now managing flows under hydrological conditions it was not designed for, in a climate regime its builders did not anticipate, while the wetlands that once buffered southern Louisiana continue to disappear at a rate of roughly a football field every hundred minutes—what is the ethical status of maintaining a structure whose failure would be catastrophic but whose success requires us to pretend the river is still the same river it was in 1963?