decades of effort by its chief promoter, Joseph Bigelow. Bigelow witnessed the business opportunity that the Scugog Bridge opened up, and wished to construct a second structure towards Blackstock, opening the Port Perry markets to the fertile agricultural land of Cartwright Township. He first approached the Ontario County council in 1872 with his proposal, but was refused the funding. The council agreed to set up a committee, through which Bigelow sought out investors. In 1882, the Lake Scugog Marsh Lands Drainage Company, which had purchased the marshlands south of the proposed causeway, approached Bigelow with an offer to build his causeway as part of their plans to drain the marsh. They required a small investment in order to proceed with the work, but council ultimately refused even this, forcing the company to sell off its lands. Undeterred, Bigelow continued to accrue funds from other level of government and surrounding townships. By 1889, he had enough to begin work. Unlike the Scugog Bridge, Bigelow ensured that his structure would be permanent from the beginning and constructed a majority of the causeway by removing the top layer of peat from the marsh, piling logs in lengthwise approximately a metre deep and covering the exposed surface with the same depth of earth. By early 1891, the causeway was completed, and shortly thereafter trees were planted along both sides. The combined route quickly grew to be the main east–west transportation corridor in the area. However, due to the soft soils and clay on which the causeway was built, it sank at a continuous rate and still required maintenance to keep it above water during the spring thaw. In 1928, both causeways were reinforced, widened and heightened in response to growing automobile usage. King's Highway On November29, 1933, the Department of Highways assumed Lansdowne Street in Peterborough as Highway 7A, providing an alternate route south of downtown. At that point in time, Highway 7 entered Peterborough by following Lindsay Street east from Fowlers Corners to Chemong Road and curving southeast. It followed Chemong Road to Reid Street, which it then followed south. The route proceeded west along McDonnel Street and south along George Street to Lansdowne Street, which it followed east out of Peterborough. Highway 28 entered Peterborough from the west along Lansdowne Street, curving north at what is now Ford Street. It followed this onto what is now Clonsilla Avenue, and curved east onto