Marsh Trail Improvements for Watershed and Natural Resource Protection
2 Documents in Project
Summary
SCH Number
2024030188
Public Agency
California Regional Water Quality Control Board, San Francisco Bay Region 2
(RWQCB)
Document Title
Marsh Trail Improvements for Watershed and Natural Resource Protection
Document Type
NOE - Notice of Exemption
Received
Posted
7/25/2025
Document Description
Project proposes to make improvements to the Marsh Trail in Trione-Annadel State Park to protect water quality and natural resources and improve access for park visitors, staff, and emergency vehicles.
This includes removing an existing cattle guard and pedestrian bridge over Schultz Creek, building two elevated causeways over hardened crossings where water is ponding by excavating within the existing road prism to install 18 inch culverts, adding gravel material around the culverts to stabilize them and cap them with Class 2 road base aggregate, installing a 20 foot long pre-fabricated free span bridge to replace the old one, and restoring project sites to pre-project conditions.
Contact Information
Name
Nicholas Siu-Ming Regent
Agency Name
California Regional Water Quality Control Board, San Francisco Bay Region 2
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Counties
Sonoma
Regions
San Francisco Bay Area
Total Acres
0.0041
Waterways
Schultz Creek
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301 – Class 1 (Existing Facilities), Section 15303 – Class 3 (New Construction or Conversion of Small Structur
Reasons for Exemption
Project consists of the operation, repair, maintenance, or minor
alteration of existing public or private structures, facilities, and topographical features involving negligible or no
expansion of use beyond current levels, and is listed as “Trail or road repairs” in the Department of Parks and
Recreation’s list of exempt activities in accordance with CCR § 15300.4; construction and location of limited
numbers of new, small facilities or structures; and minor public alterations in the condition of land and/or
vegetation which do not involve removal of healthy, mature, scenic trees.