Map of Routes to the Holland Tunnel. / The Holland Tunnel Twin Tubes Map of Routes Description of Tunnel Toll Rates Traffic Regulations.

Very good. Light wear along original fold lines. Verso repair to a fold separation. Very slight loss at a few fold intersections. Text and map of the Holland Tunnel on verso. Size 15.25 x 17.25 Inches. This is Rand McNally's c. 1927 map of New York City, produced to highlight the opening of the Holland Tunnel, the first direct automobile crossing of the Hudson River, and one of the great engineering marvels of its time. A Closer Look This map covers New York City and parts of Westchester County, New Jersey, and Long Island. Highways and other major roads are traced, with airports, parks, bridges, and neighborhoods identified. The Holland Tunnel is highlighted in red near center, while distances to the tunnel are recorded as red 'x's at highway and major road interchanges. A legend and inset map displaying the wider metropolitan area appear at bottom-left. Text on the verso describes the design and construction of the tunnel, toll rates, and regulations. This information is both informative and historically significant; for instance, the text states that the granite roadway was designed to accommodate 1900 vehicles per hour, though the demands placed on it soon exceeded these numbers, and today, the tunnel handles nearly double this number (largely due to increased night usage). The verso also includes a cross-section schematic of the tubes on the title panel, along with a plan and profile of the tunnel. Overcoming Engineering Challenges Engineers in the early 20th century gained substantial expertise in tunnel construction in and around New York City through projects such as the Long Island Railroad, the Pennsylvania Railroad, and the Hudson and Manhattan Railroad (now part of the PATH system), which involved boring tunnels beneath both the Hudson and East Rivers. Their success provided impetus to early discussions of similar infrastructure for vehicular use. Explorations of a 'Hudson River Vehicular Tunnel' began as early as 1906 - remarkably prescient given the paucity of automobiles at that date. Planners were motivated by the inconvenience of relying on ferries for both passenger vehicles and freight. In addition to the usual wrangling over where to place the tunnel and how to fund its construction, designing a tunnel for automobiles presented other novel problems, in particular how to handle potentially deadly vehicular exhaust. Construction began on April 1, 1922. The tunnel was designed by Clifford Milburn Holland (1883 - 1924), who served as chief engineer on the project from 1919. Holland had prior experience designing tunnels under the East River for the subway. Holland's greatest challenge was ventilating carbon monoxide exhausted from automobiles, an issue he resolved with dozens of blowers and exhaust fans along with four massive ventilation shafts designed to be inconspicuous with exteriors resembling contemporary office buildings. At the same time, massive amounts of fresh air are blown into the tunnel so that the air fully circulates every minute and a half. Holland worked so feverishly on the tunnel project that he suffered a nervous breakdown in 1924 and died shortly thereafter from a heart attack. In the wake of Holland's death, the tunnel project was renamed in his honor. His successor as chief engineer, Milton H. Freeman (1871 - 1925), also died after only four months on the job; a square near the tunnel's Manhattan entrance was named in his honor, Freeman Plaza. These tragedies left the Norwegian-born Ole Singstad (1882 - 1969) as chief engineer at the tunnel's opening. Singstad went on to design the Lincoln Tunnel, Brooklyn-Battery Tunnel, and Queens-Midtown Tunnel. Although the tunnel was opened some three years behind schedule and significantly over budget, it proved a popular and essential part of the infrastructure of New York City. Publication History and Census This map was designed by Rand McNally for the New York State Bridge and Tunnel Commission and the New Jersey Holland Tunnel Commission. It.…