The Brooklyn community of Gowanus, centered around the Gowanus Canal, is largely made up of historic architecture directly related to the water route. Located between Park Slope and Carroll Gardens, it is considered part of Brooklyn’s industrial waterfront. The canal itself is 2.5 miles long, 100 feet wide, and stretches from Gowanus Bay in New York Harbor to Douglass Street. Unlike other industrial areas of the city, Gowanus was never densely built up, and much open space remains today. The structures that surround the canal are generally six stories or fewer, lending a low-scale, 19th-century character. This area continues to be mixed-use manufacturing with peripheral residential enclaves. Before the Gowanus Canal, there was Gowanus Creek. By 1840, industry was growing in Brooklyn, and the creek was enlarged and straightened for barge access to New York Harbor. New York State officially approved plans for the completion of the Gowanus Canal in 1866. The canal became the center of industrial growth in Brooklyn, and by 1880 there were 31 firms operating in different industries such as lumber, coal, hay, grain, oil and building materials along the canal. A decade later these industries expanded to include gas and electric utilities, which required coal and coke. Industrial development spurred residential housing surrounding the canal basin for canal workers. The Gowanus Canal was most heavily used between 1900 and 1930. As industry and traffic increased, so did pollution. A flush tunnel was incorporated into the canal in 1911 in efforts to mitigate the heavy pollution caused by industry. Regardless, after World War I the Gowanus was the busiest—and most polluted—canal in the United States. The canal’s peak was in the 1920s, with an annual rate of 25,000 vessels per year serving more than 50 different manufacturers. After World War II, use of the Gowanus Canal significantly declined. A drop-off in housing development after the war decreased the demand for building materials, a major industry of the canal, and the declining use of coal as an energy source also adversely affected business. Further, the completion of the Gowanus Expressway in 1964 replaced water transportation. As a result, active waterway sites at Gowanus decreased by 50% during this time period. In its day, the Gowanus Canal was the center of industrial growth in Brooklyn and remains a spectacular piece of commercial infrastructure. It was the main reason that Brooklyn transformed from farmland to an industrial giant in the latter half of the 19th and early 20th centuries. Today the main canal remains completely intact, and over two-thirds of its walls are timber, dating to its initial construction. The design and materials of this waterway are remarkable, surviving examples of 19th-century engineering and construction. Additionally, remnants of industry dot the banks of the water, with much vernacular workers’ housing surviving as well. Historically one of New York’s most contaminated waterways, the Gowanus Canal area was designated as a Superfund Site in 2010. To protect the historic character of the neighborhood, the local community is currently working to place the Gowanus Canal Corridor on the National Register of Historic Places so that its urban industrial character is preserved.

Carroll Street Bridge, 1960. Opened in 1889, the Carroll Street Bridge is a rare retractable crossing, one of two in New York City and three (as of 2013) still in service in the United States. It opens diagonally, with its span slowly pulled into a reserved pocket on the Gowanus Canal’s western bank. Bridge openings are now a rare event, but were once quite common. According to the New York Times: “As recently as the 1990s, the canal was a major waterway for paint factories, oil depots, sand and gravel suppliers, and warehouses alongside it, and the Carroll Street Bridge had to be opened 500 to 700 times a year.”

By Benjamin Serby The leafy Brooklyn neighborhood of Carroll Gardens is nestled between Degraw Street (or Sackett, depending on your source) to the north and Hamilton Avenue to the south, bounded to the east by either Hoyt or Bond Street (again, answers may vary) and Hicks Street to the west. It’s just a small slice of the borough’s “brownstone belt,” but it packs a wallop, as any pizza enthusiast will tell you. With its deep front lawns, stoop-sitters, and tiny pasticcerias, Carroll Gardens is a unique corner of the city, to be sure — but, in many respects, its past and present tell us much about New York City as a whole. Read the Gotham Center blog post that inspired the walk here.

The Carroll Street Bridge crosses over the Gowanus Canal between Bond and Nevins Street and resides near the border between the Brooklyn neighborhoods of Gowanus and Carroll Gardens. Of the 794 bridges and tunnels currently operating under the purview of the New York City Department of Transportation, it is the least-used bridge in the city. Despite this, the Carroll Street Bridge is actually a New York City historic landmark. It is one of only three remaining retractable bridges operating in the United States! It is also the only wooden bridge in NYC used for cars! (More bridge fun facts: one of the other two retractable bridges also resides in NYC, the Borden Avenue Bridge in Hunters Point, Queens). By the 1860s, the Gowanus Canal was becoming a central hub of modern-day industrial activity for the city of Brooklyn. To advance this industrialization, the city built six bridges to cross the canal. One of them was the original and non-retractable Carroll Street Bridge, an old wooden swing bridge, which closed in 1887 due to fears of its imminent collapse. In 1888, Brooklyn Mayor Alfred Chapin and the Brooklyn Common Council announced their plans for a replacement bridge. One request by local landowners for the new design was a retractable span that could slide into the shore to allow an easier passage for boats (the canal was narrower at Carroll Street). The city approved this design and construction began that same year. The new Carroll Street Bridge opened in 1889 at the cost of $29,600 to build and was designed by the Department of City Works engineers Robert Van Buren and George Ingram. Since then, there have been only slight alterations to the structure. One necessary modification came in 1908 when the bridge’s steam motors were replaced by electric motors. Despite being closed twice in the 1970s, as well as an incident in the mid-1980s that resulted in the bridge being stuck in the open position for several years, the Carroll Street Bridge is a resilient little piece of architecture. In 1987, the New York City Landmarks Preservation Commission designated the bridge an official city landmark.

The Carroll Street Bridge crosses over the Gowanus Canal between Bond and Nevins Street and resides near the border between the Brooklyn neighborhoods of Gowanus and Carroll Gardens. Of the 794 bridges and tunnels currently operating under the purview of the New York City Department of Transportation, it is the least-used bridge in the city.