Tinkham Road

One of the conditions of the toll road company was to improve the wagon road and reduce the 17 crossings of the Snoqualmie River between Fifteen Mile and the Summit. in 1883, when the toll company took over, a new wagon road was constructed from the Fifteen Mile Crossing to the next crossing of the river at the mouth of Rockdale Creek. In 1893, the County took over the highway and it became County Road No. 353.

In 1907, the highway was going through major improvement for the newly designated State Highway No. 7, the precursor to the Sunset Highway. This section of road was realigned and widened and the fords over the creek were improved.

In 1915 when the Sunset Highway was completed, this section of highway was bypassed. Today this section of road is called Tinkham Road in honor of Lt. Tinkham who crossed the pass in 1853. The road is still a public road and can be driven from end to end in the summer as the snow closes the road in the winter.