Bernward Joerges, a German professor of sociology, in 1999 carefully examined the saga of the bridges. In an essay, he acknowledged Moses was an “undemocratic scoundrel” and a “structural racist” but argues that all parkways at the time had low bridges.
“How, then, should one understand that Moses built some 200 overpasses so low?” he asked. “U.S. civil engineers with whom I have corresponded regularly produce two simple explanations for the rationality of the low-hanging bridges: that commercial traffic was excluded from the parkways anyway; and that the generally good transport situation on Long Island forbade the very considerable cost of raising the bridges … Moses did nothing different on Long Island from any parks commissioner in the country. … In sum: Moses could hardly have let buses on his parkways, even if he had wanted differently.”
He also believes Caro overstated the reasons Black Americans did not go to Jones Beach.
“The fact remains that Blacks could gain physical access to Long Island beaches via many routes. And yet Jones Beach remained a white strand,” he observed. “Even today, when many more Blacks drive cars, and when no politician tries to exclude them from the beaches, not many poor Blacks seem to gather on Jones Beach. There existed then, and there exist today, many reasons for Black families to go elsewhere.”
Kenneth T. Jackson, a Columbia University historian who has said that generations of his students have failed to confirm episodes in Caro’s book, also says the overpass story is not true.
“Caro is wrong,” he wrote in an email. “Arnold Vollmer, the landscape architect who was in charge of design for the bridges, said the height was due to cost.” He added: “Also, you can still get to Jones Beach by train and bus, as you always could.”
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But more recently, Thomas J. Campanella, a Cornell University historian of city planning, had a change of heart when he measured the height of the bridges on the Southern State Parkway. “I’ve always had doubts about the veracity of the Jim Crow bridge story. There is little question that Moses held patently bigoted views,” he wrote in an article for Bloomberg News in 2017. But then he recorded clearances for 20 bridges, viaducts and overpasses on other parkways built at the time and compared them to measures of the 20 original bridges and overpasses on the Southern State Parkway. It turned out clearances are substantially lower on the Moses parkway.
Many of the most important examples of technologies that have political consequences are those that transcend the simple categories of "intended" and "unintended" altogether. These are instances in which the very process of technical development is so thoroughly biased in a particular direction that it regularly produces results counted as wonderful breakthroughs by some social interests and crushing setbacks by others. In such cases it is neither correct nor insightful to say, "Someone intended to do somebody else harm." Rather, one must say that the technological deck has been stacked long in advance to favor certain social interests, and that some people were bound to receive a better hand than others.
Note that the story about Robert Morris and the bridges is disputed.
Robert Moses and the saga of the racist parkway bridges (Washington Post)
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