Biological Resource Monitoring during Construction

Ojai Valley Trail Bridge, Ventura County, California

Project Name: Ojai Valley Trail Bridge, Ventura County, California
Services: Biological Monitoring, CEQA and Permitting
Client: Ventura County General Services Agency

This project consisted of the replacement of the Ojai Valley Trail culvert crossing with a bridge at San Antonio Creek, including removal of the existing culverts and associated fill, construction of the bridge and site restoration. The project site is located at the confluence of San Antonio Creek and the Ventura River, and supports the endangered southern steelhead and threatened California red-legged frog. Padre prepared a Mitigated Negative Declaration for the project, and assisted the client in obtaining regulatory permits for construction. Padre biologists monitored installation of an exclusion fence to keep California red-legged frogs out of the work area, monitored demolition of the existing culverts and construction of the bridge, including a pre-construction survey each morning to detect California red-legged frogs within the work site. In addition, Padre biologists assisted in the installation of a silt curtain within a stream pool on the Ventura River, to isolate steelhead from the work area. The project was successfully completed with no take of listed species.

Padre also prepared the CEQA documentation for the project and assisted the client obtain the necessary permits.

San Simeon Road Bridge Replacement Project, San Simeon,
San Luis Obispo County, California

Project Name: San Simeon Road Bridge Replacement Project, San Simeon, San Luis Obispo County, California
Services: Biological and Environmental Monitoring
Client: San Luis Obispo County Public Works Department

Padre served as on-site biological monitor on behalf of the County Department of Public Works for the San Simeon Road Bridge Replacement Project located in northern San Luis Obispo County. As part of this task, Padre completed a series of reconnaissance-level special-status species surveys which focused upon the following species: California red-legged frog, two-striped garter snake, southwestern pond turtle, Coast Range newt, southwestern pond turtle, and steelhead. Padre completed environmental sensitivity trainings for all on-site personnel. Padre was also responsible for the monitoring of compliance with multiple-agency permit conditions (e.g., USFWS, CDFG, etc.) and reporting to the County through weekly monitoring reports. Padre completed daily monitoring during all project activities which included nesting bird surveys, environmentally sensitive area protection, aquatic resources protection, and periodic inspection of erosion control devices. Padre also conducted species relocation during water diversion activities and inspected the diversion areas daily for stranded wildlife.

Arroyo Simi Channel Improvements Project, Ventura County, California

Project Name: Arroyo Simi Channel Improvements Project, Ventura County, California
Services: Biological Resource Monitoring
Client: Ventura County Watershed Protection District

Padre provided environmental monitoring services during the construction of flood control improvements located between 100 and 500 feet upstream of East Los Posas Road Bridge in Arroyo Santa Rosa. Improvements made during the project included:

  • Removing the existing grade control structure and armorflex;
  • Installing approximately 185 linear feet of concreted rock riprap;
  • Placing two cutoff walls and installing three keys into the north bank;
  • Relocating of an existing equestrian trail; and
  • Application of a native coastal sage scrub seed mix to disturbed areas upon completion of construction.

Padre conducted several pre-construction breeding bird surveys at the site and conducted an environmental sensitivity training session for contractor personnel on subjects relating to protection of special-status species and water quality.

During the construction phase, Padre biologists completed the following monitoring duties at the site.

  • Advising the District (and its contractor) on conditions outlined in each of the project permits and facilitating compliance with each permit condition.
  • Ensuring the contractor had clearly defined the limits of the project.
  • Monitoring for any wildlife species (including special-status species) that may enter the site, and if necessary, informing the District so that California Department of Fish and Game (CDFG) would be notified.
  • Conducting wildlife relocation (for fish, reptiles, amphibians and mammals, when necessary).
  • Photo-documentation of project activities.
  • Completion of daily monitoring sheets.
  • Ensuring that refueling of vehicles occurred away from Arroyo Santa Rosa.
  • Ensuring that the contractor inspect, and if necessary, maintain their vehicles to avoid leaks of fuel, hydraulic fluids, oils or coolants.
  • Ensuring that workers kept the work area clean, disposing of all food-related trash in sealed containers and removing the trash daily.
  • Monitoring weather forecasts and advising the District (and its contractor) of permit requirements to implement BMPs prior to a rainfall event.

Padre biologists also conducted pre- and post-inventories of any native trees within the work area to facilitate the off-site mitigation conducted to compensate for native tree losses. A project completion report documenting the monitoring effort was prepared and submitted to the client.