The California Department of Fish and Wildlife has executed Lake and Streambed Alteration Agreement number 1600-2018-0523-R1, pursuant to Section 1602 of the Fish and Game Code to California Northern Railroad Company.
The project is limited to scour protection replacement and pier protection around the base of seven piers of the railroad crossing on Thomes Greek. Four of the piers will have sheet piles installed 6" away from the pier face surrounding the pier, and will be backfilled with concrete grout. These will also have the "nose", or the upstream facing
side of the pier, covered in grouted rip-rap. The other three piers will have grouted rip-rap installed around the perimeter of the pier without the addition of the sheet pile and extra grout.
The work authorized by this Agreement is limited to activities associated with repairing and maintaining seven piers supporting a railroad bridge over Thomes Creek in Tehama County. Construction will involve excavating the streambed around the damaged piers and protecting them from further scour with a combination of concrete grout and rip-rap. There will be no expansion of the existing use as a result of this project. The project will have no significant effect on the environment.