This highway is along the main route from Ottawa and Greater Toronto Area to Mont-Tremblant Before the bypass was built in 2008, road conditions were often criticized.

Several pot holes, and cracks in the asphalt made this narrow road a long trip for many drivers.

This section, now bypassing Lac-des-Plages, was opened to traffic in the fall of 2008.

[2] The narrow section northeast of Lac-des-Plages closer to Amherst had many turns and was prone to flooding, resulting in Highway 323 being closed on occasion, especially in springtime.

Work involved significant tree cutting and blasting.