County of Alameda

Tree Trimmer-Climber (#9550)

Bargaining Unit: BTC - Crafts and Trades (002)
$48.67-$48.67 Hourly / $3,893.60-$3,893.60 BiWeekly /
$8,436.13-$8,436.13 Monthly / $101,233.60-$101,233.60 Yearly

Under general supervision, to perform tree care services: climb and trim trees; fell and buck trees; clean up work area; maintain a safe work zone; and to perform other phases of tree work, as needed; and to perform other work when required.


This classification of Tree Trimmer-Climber is located in the Maintenance and Operations Department of the Public Works Agency and reports to the Crew Leader and/or Field Maintenance Supervisor. Incumbents of this position are responsible for performing a variety of tasks necessary for tree care, which include but are not limited to tree trimming, tree removals, and debris removal, and have lead responsibility over a crew that may include Laborers, Heavy Truck Drivers, Heavy Equipment Operators, and/or Crane Operators 

NOTE: The following are the duties performed by employees in this classification.  However, employees may perform other related duties at an equivalent level.  Each individual in the classification does not necessarily perform all duties listed.

  1. Climbs trees with the aid of ropes, adjustable safety belts, and any other rigging necessary to perform the duties safely.
  2. Trims or removes excess, dead, or diseased limbs and branches using hand or power tools; lowers cut limbs using ropes, slings, lines, pulleys, cranes, and other necessary tools that will ensure all safety measures are met until limbs reach the landing zone slings and lines.
  3. Leads a crew to trim or remove trees and discarded brush; assists in removing trimmings, chipping brush, and loading downed tree boles onto a truck.
  4. Uses hand and power tools to cut brush along roadsides, creek banks, fence lines, and other areas of responsibility.
  5. Drives and operates a boom truck and operates power equipment from the extended bucket of the boom truck.
  6. Assigns work to the crew and fills out daily timesheets.



The equivalent of two (2) years of full-time experience in the classification of Laborer or an equivalent or higher classification working on tree crews or performing various types of work associated with trees in the Alameda County classified service.  

The equivalent of two (2) years of full-time professional experience in tree trimming, caring for trees, and tree climbing.


Possess and maintain a valid California Motor Vehicle Class B Driver’s License. Candidates must submit evidence from the DMV showing current status of their license at the time of application and must have a clean driving record for the previous three-year period.

Working Conditions:

  • Tree Trimmer-Climbers are subject to 24-hour call-out.
  • Tree Trimmer-Climbers are subject to work in all weather conditions.
  • Tree Trimmer-Climbers are subject to work in all noise levels and high-traffic areas.
  • Tree Trimmer-Climbers are subject to work near overhead utilities.
NOTE: The Civil Service Commission may modify the above Minimum Qualifications in the announcement of an examination.

NOTE: The level and scope of the following knowledge and abilities are related to duties listed under the “Examples of Duties” section of this specification.

Knowledge of:

  • Methods, materials, tools, and equipment used in performing tree care services that include but is not limited to trimming and removing trees.
  • Proper maintenance of tree care tools and equipment.
  • Safety procedures and practices associated with tree care services.
  • Traffic control and safety.
  • ISA pruning, trimming, and removal methods.
  • Load forces of rigging components and situational awareness of such operations.
  • Techniques used in tree-related crane work.
  • Knots used in tree care, i.e., running bowline, cow hitch, clove hitch, etc.

Ability to:

  • Work at a considerable height above the ground.
  • Climb trees using ropes, climbing gear, and rigging with skill and confidence.
  • Use and maintain tree-trimming tools and equipment with skill and safety.
  • Operate and use a hydraulic boom truck.
  • Deal and respond effectively with the public’s requests and concerns.
  • Lead a crew of appropriate size to accomplish tasks.
  • Follow oral and written instructions.
  • Communicate effectively orally and in writing; write clear and concise reports. Fills out daily timesheets capturing the type of work and location, as well as recording crew members and equipment hours.
  • Use good judgment in decision-making.
  • Use cranes safely and skillfully for tree removals.

JGS:lfm Revised: 3/3/81
CSC Date:  3/16/81
Retyped: 10/85
Retyped: 6/16/86
Old doc:  0892h
New doc:  9550.doc
RC:pf  Revised 5/27/03
CSC Date:  7/9/03
RC:pf  Revise 9/26/05
CSC Date:   11/9/2005
MH:po Revised 10/5/07
CSC Date:    1/30/2008
MH:cs  Revised 2/3/15
CSC Date:  5/27/15
IL: saa Revised 08/31/2023
CSC Date:10/04/2023


Alameda County offers a comprehensive and competitive benefits package that affords wide-ranging health care options to meet the different needs of a diverse workforce and their families. We also sponsor many different employee discount, fitness and health screening programs focused on overall well being.  These benefits include but are not limited to*:

For your Health & Well-Being

  • Medical – HMO & PPO Plans
  • Dental – HMO & PPO Plans
  • Vision or Vision Reimbursement
  • Share the Savings
  • Basic Life Insurance 
  • Supplemental Life Insurance (with optional dependent coverage for eligible employees) 
  • County Allowance Credit
  • Flexible Spending Accounts - Health FSA, Dependent Care and Adoption Assistance
  • Short-Term Disability Insurance
  • Long-Term Disability Insurance
  • Voluntary Benefits - Accident Insurance, Critical Illness, Hospital Indemnity and Legal Services
  • Employee Assistance Program

For your Financial Future

  • Retirement Plan - (Defined Benefit Pension Plan)
  • Deferred Compensation Plan (457 Plan or Roth Plan)

For your Work/Life Balance

  • 12 paid holidays
  • Floating Holidays
  • Vacation and sick leave accrual
  • Vacation purchase program
  • Catastrophic Sick Leave
  • Group Auto/Home Insurance
  • Pet Insurance
  • Commuter Benefits Program
  • Guaranteed Ride Home
  • Employee Wellness Program (e.g. At Work Fitness, Incentive Based Programs, Gym Membership Discounts)
  • Employee Discount Program (e.g. theme parks, cell phone, etc.)
  • Child Care Resources
  • 1st United Services Credit Union 

*Eligibility is determined by Alameda County and offerings may vary by collective bargaining agreement.  This provides a brief summary of the benefits offered and can be subject to change.


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