Technology & Engineering

The Morris Canal was not the longest canal in the world, but it did have one superlative to its credit—it climbed higher than any other canal ever built.

In its time, it was world famous, visited by tourists and technical people from as far away as Europe and Asia.For nearly 100 years, it crossed the hills of northern New Jersey, accomplishing that feat with 23 lift locks and 23 inclined planes.From Lake Hopatcong, the canal ran westward through the Musconetcong valley to Phillipsburg, on the Delaware River, and eastward through the valleys of the Rockaway and Passaic Rivers to tidewater at Newark and Jersey City—a little over 100 miles horizontally and a total rise and fall of nearly 1,700 feet vertically.The Morris Canal, once an important soldier in the American Industrial Revolution, has been gone for most of the 20th century, but its memory lives on in the many photographs, postcards, and other memorabilia that its unique presence inspired.

Marshall Space Flight Center (MSFC) was carved from the environs of Redstone Arsenal in Huntsville, Alabama, at the height of the Cold War with the former Soviet Union.

Originally, the area was a center for cotton production and large mills, but on the eve of World War II, civic leaders sought a US Army initiative that established Redstone and Huntsville Arsenals for the manufacture and stockpile of small solid-fuel rockets and chemical weapons.After World War II, Operation Paperclip brought scientists and engineers from Germany to pursue missile and rocket development at Redstone Arsenal’s Army Ballistic Missile Agency (ABMA) and eventually the National Aeronautics and Space Administration (NASA). After establishing the civilian NASA on July 29, 1958, Pres. Dwight D.Eisenhower dedicated the George C. Marshall Space Flight Center on September 8, 1960, to the resolute general, statesman, and “builder of peace.” The president concluded, “May this great center be ever worthy of its honored name.” Following the Mercury and Apollo programs of the 1960s and early 1970s, MSFC’s notable achievements continued with Skylab, Apollo-Soyuz Test Project, Space Shuttle, Spacelab, and the space station. Today, Marshall Space Flight Center, NASA’s leading center for propulsion systems and launch vehicles, supports the lunar missions of Project Artemis.

Cindy Donze Manto, a historian, urban planner, and the author of Michoud Assembly Facility and Stennis Space Center, has assembled a compilation of photographic images and maps culled from an array of libraries, museums, private collections, and NASA.

The Hudson River bridges, iconic structures of the New York State Bridge Authority, are the cornerstone of the Mid-Hudson Valley.

Opened in 1924, the Bear Mountain Bridge was the first vehicular crossing of the Hudson River, south of Albany. Twentieth-century growth in the Hudson Valley can be traced to each bridge opening, the result of grassroot efforts by local residents. The Mid-Hudson Bridge, named for the region these bridges span, was designated an “Engineering Epic” following the tipping of the east caisson that delayed construction for a year while engineers and laborers struggled to right that caisson in the waters of the Hudson River. The plan for the Rip Van Winkle Bridge required the creation of the New York State Bridge Authority, when funding was otherwise impossible during the Great Depression. Three more bridges were built connecting remaining areas of the Mid-Hudson region.The last crossing became the “twin spans” of the Newburgh-Beacon Bridge, the New York State Bridge Authority’s most traveled span. In 2010, the New York State Bridge Authority gained ownership of the bridge structure of the Walkway Over the Hudson, a pedestrian walkway built on the old Poughkeepsie Bridge, which opened for trains in 1889.

Kathryn W. Burke, educator, author, and director of Historic Bridges of the Hudson Valley, shares her appreciation and knowledge of these bridges through photograph archives of the New York State Bridge Authority; the Modjeski & Masters, Inc., engineering firm; and the Smithsonian Museum of American History. This is Burke’s second book on the Hudson River bridges.

Seattle is situated in a region of outstanding scenic beauty, but the forested hills and numerous bodies of water that characterize the city were formidable obstacles to connecting its communities as it grew out from the historic center.

Between 1896 and 1930, the city undertook massive landscape regrades, landfills, and waterway cuts to ease movement by land and water.The completion of these efforts allowed for the construction of Seattle’s first permanent steel bridges beginning in 1910.Nine bridges included in this book are listed in the National Register of Historic Places.They include Washington’s oldest steel arch bridge, the 1911 Twelfth Avenue South Bridge; the 1913 Ravenna Park Bridge; all four of the Lake Washington Ship Canal bascules, constructed between 1917 and 1924; and the Depression-era Aurora, Cowen Park, and Schmitz Park bridges.Bridges of Seattle explores the history of the spans that are a quintessential part of the Seattle experience.