Detroit was incorporated in 1815, and the initial roadway to connect Detroit north to Pontiac along the Saginaw Trail was started in 1817; this was a corduroy road built by laying down logs and filling in the gaps with clay or sand. The territorial legislature authorized a survey of the roadway to Pontiac on December 7, 1818, and the route was approved by Governor Lewis Cass on December 15, 1819, the first to be done in the future state. The Michigan Legislature authorized the construction of a private plank road with tolls to connect Detroit with Pontiac in 1848. By the next year, and oak planks were laid along the road between the two communities. Tolls were for vehicles and for a herd of cattle. Tolls along some segments of Woodward Avenue remained in place as late as 1908.