Photographer David Plowden

Photographer David Plowden photographed at his home in Winnetka Oct., 22, 2012. (Armando L. Sanchez, Chicago Tribune / October 23, 2012)

David Plowden's second-floor office in his Winnetka home is not the sanctuary that was his now-shuttered basement darkroom. It is more prone to distractions, but that is just one of the allowances that the celebrated 80-year-old photographer has made to age, health and advancing technology.

He has not been "in the field" this year. "I don't think I will go into the field again, but I'm working on several book projects, so I'm not in any way retired," he says. "I just don't feel compelled to drive thousands of miles around Kansas, Nebraska and Iowa. I loved doing it, but I don't feel there's anything more right now that I feel the need to go out and photograph."

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Plowden's singular contribution to American photography can be gleaned from several titles of his published photograph collections spanning more than half a century: "A Handful of Dust: Disappearing America"; "Requiem for Steam"; and "End of an Era: The Last of the Great Lakes Steamboats."

He would come in at "the 11th hour," he says, to preserve some of America's defining iconic places and engineering marvels while they remained. It started with powerful, ravishing photographs of his first love, steam locomotives, which were disappearing. "A tremendous loss," he says. "And I began to realize that so many other things were changing after the war. The highway system changed the whole culture, and I set out to document all this before it was gone."

"All this" included America's Main Street and small town life, bridges, steel factories and the landscape of America's heartland, which is the subject of an as-yet-untitled book to be published next year. Plowden's photographs of Iowa are being featured in a traveling exhibition in that state. They also can be seen in his latest book, "David Plowden's Iowa."

American ingenuity looms large in the Plowden canon. As a child growing up in New York, he loved steam trains like other kids love dinosaurs.

"I was never interested in model trains," he says with a smile. "I wanted the real thing. Make no little plans, right? Kids love dangerous things, and no machine that I had ever known was as compelling and as awesome. You could see how they worked just by walking up and looking at the wheels and connecting rods."

Pointing to the computer on his desk, which is displaying a database of potential photographs for his next book, he says, "Look at this remarkable machine. You can't see a ... thing. It's in a box. How do you photograph the ingenuity of man? You have to find something that's visual. So many things today are covert."

Bridges hold the same fascination for him. "Virtually all of the old bridges are gone," he remarks ruefully. "I always felt bridges were the summit expression of man's guts and ability to build. When I was a kid in my room in New York, I looked out on the East River, and down on the righthand side was the Queensboro Bridge with the Triborough bridge in the distance. I know they had an enormous influence on me."

Following the 1967 collapse of the Silver Bridge over the Ohio River, in which nearly 50 people died, Plowden realized that America's 19th century and early 20th century bridges were in danger of being replaced. He applied for and received a Guggenheim grant to make a visual record of these engineering marvels. Six years in the making, the resulting book was "Bridges: The Spans of North America," which is in its fourth printing.

That also is the title of an exhibition that will open Jan. 18 at the Milwaukee School of Engineering's Grohmann Museum and run through April 28. The museum also mounted an exhibition of Plowden's railroad photographs last year, which was "perhaps our most successful exhibition to date," said museum director James Kieselburg II. "Not only do we admire David's unparalleled vision, but because our focus is on the art of industry and human achievement, we have a real affinity for his subjects: rural America, steam locomotives, steel mills, bridges and the like."

Plowden in person has an avuncular, Walter Cronkite quality. Indeed, he is in a sense a reporter. He considers himself less an artist than "an instrument," he modestly says. "I'm not trying to interpret things. What I'm trying to do is get to the essence of what storms are like, or a grain elevator."

"His beautiful images capture both the America as it was and the America as it is," observes Jim Mairs, Plowden's longtime editor at publisher W.W. Norton & Co. "In the three decades that I have worked with him, I've never tired of seeing his meticulously made prints of wheat fields, barns, houses, grain elevators, steam engines and ore boats. His documentation of man's stamp on our country over the last half century is a national treasure. His work, like that of Walker Evans, goes a long way toward describing who we are."

Plowden's work suggests that perhaps the biggest part of who we are is the land, our relationship to it and our impact on it. Plowden is selecting photographs that focus on "this great, huge magnificent space that rises up between here and the front rim of the Rockies. All the things I love are huge."

These glorious black and white photographs capture profoundly moving images, at once intimate and panoramic of tilled lands under tumultuous skies, grain silos standing like sentries, and small-town Main Streets that have seen better days.

"I find this part of the country absolutely magnificent," Plowden says. "It is so vast and so marvelous. You get a sense that you really are almost a visitor, and that despite an arsenal of equipment, you can be wiped out in a minute by a tornado. It reminds me a bit of the ocean in that it's an area where weather plays such an important part."

The irresistible lure of the road also figures prominently in these photographs. "I love the idea of a road. It's about the fact that you're free to go," he says, referring to one such photograph taken in South Dakota. "I'm looking down that road and wondering what's over the brow of that hill. Living in an apartment house in the middle of Manhattan, the only way I could see the sky was to peer up, way up above the buildings that surrounded me. The only sunlight we got was reflected off the windows of the north side."

Were Plowden to rest on his laurels, he would have very plush accommodations. His works are in the collections of such institutions as the Art Institute of Chicago, the Smithsonian, the Chicago History Museum and the George Eastman House International Museum of Photography and Film. He was mentored early on by such artists as Walker Evans, Minor White and O. Winston Link. Plowden himself has taught at the Illinois Institute of Technology's Institute of Design, the University of Iowa and Grand Valley State University in Michigan.