Charlotte Street, which it followed to George Street. Highway 7A thus provided a direct route between Highway 28 and Highway 7 south of Peterborough. In May 1938, Highway 7A was extended west to Highway 7 and Highway 12 at Manchester via Bethany and Port Perry. This created a concurrency with Highway 28 and brought the length of the highway to . The new extension was a gravel road between Port Perry and Highway 28, but the section between Port Perry and Blackstock was paved by October 1939. In late 1954, Highway 115 was opened between Highway 35 at Enterprise Hill and Highway 28 south of Springville. As a result, Highway 7A was rerouted concurrently along a short section of the new highway. Several highways were rerouted in 1960, including Highway 7, which was redirected at Fowlers Corners to curve south and meet Highway 28 near Springville; the former route became Highway 7B. During the spring of 2003, Highway 7A was truncated at Highway 115 near Cavan, taking on its current routing. During the late 1950s, spring flooding began to become problematic on both causeways, prompting the Department of Highways to reconstruct them and the approaches. Soil investigations were carried out over the length of the road in mid-1959, and in August 1960 contracts were tendered for construction. The existing causeways were both closed as the adjacent marsh was excavated up to deep. Nearby properties were purchased for the sole purpose of excavating for earth for fill, which was trucked at a continuous rate. Over of organic material was removed from the marsh and of fill placed over several years of construction. As a result of this, the roadbed no longer sinks into the marsh and spring melt no longer poses an issue. Major intersections References Sources Bibliography External links Google Maps: Highway 7A route Highway 7A pictures and information 007A Kawartha Lakes