Early history Southern portion from Brockville as far as Toledo was opened as a wagon trail in 1816 by settlers heading inland to the newly established military town site of Perth via
Rideau Ferry, and thus became known as the Perth Road. Smiths Falls did not begin to develop until the completion of the Rideau Canal in 1832. In 1837, work began to improve the road north from Brockville, though very little was accomplished over the following ten years, until the United Counties of Leeds and Grenville contracted the construction of a
macadamised road from Brockville to Smiths Falls in 1847. This would be completed in 1852 and known as the Victoria Macadamised Road; tolls were collected for approximately a decade. Although numerous realignments straightened and shortened the road over the years, Highway29 would largely come to follow this toll road.
Designation and paving Highway29 was first designated as a provincial route by the Department of Public Highways (DPHO), predecessor to the modern
Ministry of Transportation of Ontario (MTO), in 1927. It was initially split into two separate halves, with a discontinuity between Smiths Falls and Carleton Place; Highway15 provided the only provincial highway connection between the two towns, via Perth. Responsibility was assumed by the DPHO for the upkeep of the southern portion of the road, within the United Counties of Leeds and Grenville, on May11, 1927. The northern portion, within Lanark County and
Carleton County, was assumed on August17, 1927. Until 1934, Highway29 passed into downtown Almonte. That year saw the route redirected along what is now Christian Street along the western edge of the town, much to the chagrin of local residents. On January9, 1936, it was announced that the Franktown Road, connecting Smiths Falls with Carleton Place, would be improved and assumed as a provincial highway. This officially took place on August5, 1936. The highway from Brockville to Arnprior now bore a single number and was long. The majority of Highway29 was a gravel road when it was assumed; by 1927, it was paved through Smiths Falls, between Carleton Place and Almonte, and through Pakenham. In addition, the Franktown Road was paved between Smiths Falls and south of Franktown. Paving operations between Brockville and Smiths Falls commenced in 1929, with the portion between west of Spring Valley and Forthton being completed that year. The Franktown Road was also paved entirely by then, except within its namesake town. Paving north of Brockville to the existing pavement west of Spring Valley was completed in 1930, and between Newbliss and Smiths Falls in 1931. Paving of the segment between Frankville and Newbliss, as well as through Franktown, followed in 1933. The final gap between Brockville and Smiths Falls — from Forthton to Newbliss — was paved in 1934. Limited resources in the
depression years resulted in other highways receiving priority attention, notably Highway15 and Highway17. As a result, the remainder of Highway29 was paved in a piecemeal approach. The northern of the route, near Arnprior, were paved in 1932; a short segment between Almonte and the
Indian River in 1934. The remaining gaps, near Pakenham — a section south to the Indian River, and a section north to the Lanark–Carleton county line — were improved by 1937, completing the paving of the highway. in 1943|alt=Black and white photograph of a narrow, tree-lined paved road
Improvements, concurrencies, and downloading Until the 1950s, Highway29 connected to King Street in downtown Brockville via Perth Avenue. On October9, 1952, Stewart Boulevard was opened, connecting with William Street. A few years later in October 1954, a contract to construct the Brockville Bypass section of Highway401 was awarded. Construction of the
cloverleaf interchange at Highway29 began in 1957. Both the interchange and the eastbound lanes of Highway401 (from west of Brockville to
Prescott) were opened by Minister of Highways,
Frederick Cass, on November13, 1959. The westbound lanes opened 10months later on September16, 1960. Two other highways were signed
concurrently with Highway29 over the course of its existence. In August 1935, the DHO took over the route between Forthton and
Westport as Highway42. It was signed concurrently with Highway29 between Brockville and Forthton at the same time. The department performed a series of renumberings similar to these recommendations following the extension of
Highway 43 on September8, 1961. Highway15 was rerouted between Smiths Falls and Carleton Place to travel concurrently with Highway29; Highway7 was extended along the former routing from Perth to Carleton Place and signed concurrently with Highway15 eastward to Ottawa. Highway29 was significantly reduced in length during the early 1980s, in order to reduce the redundancy of Highway15. Highway29 was truncated at Smiths Falls, while Highway15 was rerouted along the section of Highway29 between Carleton Place and Arnprior. This change was approved by the provincial government in 1983, without consulting local governments; signage changes were made in the spring of 1984. This established the route of Highway29 for the remainder of its existence. As part of a series of budget cuts initiated by premier
Mike Harris under his
Common Sense Revolution platform in 1995, numerous highways which were no longer significant to the provincial network were decommissioned and responsibility for the routes transferred to a lower level of government, a process referred to as
downloading. Highway29 was downloaded in its entirety on January1, 1998, and transferred to the United Counties of Leeds and Grenville. == Major intersections ==