SCH Number 2020070177

Project Info

Title

State Route 1/84 Structures and Scour Mitigation Project

Description

The California Department of Transportation (Caltrans) District 4 proposes to protect the Pilarcitos Creek Bridges on State Route 1, post mile 28.92, and the San Gregorio Creek Bridge on State Route 84, post mile 7.55. The bridges will be protected from scour by placing partially grouted rock slope protection (RSP). At the Pilarcitos Creek Bridges, an existing log jam will be removed and partially grouted RSP will be placed around piers of the northbound and southbound bridges and will replace the earth stream bank, and slope, between Pilarcitos Creek and the northern abutments of both bridges. The existing public trail along the north bank of Pilarcitos Creek will be removed during construction and replaced in kind at project completion. At the San Gregorio Creek Bridge, partially grouted RSP will be placed under the west end of the bridge along the slope between Pier 2 and Abutment 1 to restore the slope to a ratio no steeper than 1.5 horizontal to 1.0 vertical; and to construct a key around Pier 2 that will be filled with partially grouted RSP to protect the pier from erosion.

4 documents in project