Civil Engineering Services

Triad/Holmes Associates provides a comprehensive range of civil engineering services in Mammoth Lakes, Bishop, and the Redwood City, CA area. We have extensive experience with commercial, residential, and public works projects.

Our services include:

• Erosion control plans

• Feasibility studies

• Grading design

• Project development and entitlement assistance

• Roadway design

• Site planning and mapping

• Storm water pollution prevention plans (SWPPP)

• QSD/QSP services

• Improvement plans including street and wet utility plans

• Sewage disposal system design