Canyon Road

He founded The Oregonian, enlarged Portland's platt, improving the city's streets, and ushered construction of Canyon Road.

[10] Others already invested in the city contributed to help make Portland the prime seaport of the region, including persuading others to join them, removing river obstructions, and importing goods from Asia and beyond.

[11] Coffin gave the contract to a sawmill owned by himself and Simeon Reed, and the first plank was laid on September 27, 1851, leading to a large celebration.

[11] The project remained incomplete for three years until Supreme Court Justice Cyrus Olney required subscribers to pay at least 80% of the pledged amount.

[7] This is the commencement of an era of commercial prosperity which will continue to increase until the iron horse takes the place of the plank road.

Slightly west of Sylvan, an interchange with modern Canyon Road, also known as Oregon Route 8, continues southwest into Beaverton.

[citation needed] A plaque to commemorate the road was placed in the South Park Blocks by the Lang Syne Society in 1991.