Applicants must develop and submit the following plans and work schedule to the District Adopt-A-Highway Coordinator along with their Adopt-A-Highway Encroachment Permit Application. Applications will not be processed until these documents are received and approved. All costs incurred for adoption activities, including materials, equipment rental, and labor charges are the sole responsibility of the adopter. It is strongly recommended that adopters consult with a Caltrans Landscape Architect or Landscape Specialist before preparing the following documents. If available, Caltrans may provide base plans of the proposed adoption area for reference purposes.
1. Planting Plan(s)
Prospective adopters must provide a plan (or map) that illustrates the location of the site within the highway right of way. If the proposed location requires further clarification, a written description should be included. The plan must show where the trees or shrubs are to be planted. The plan must list the quantity and species of the trees or shrubs. The plan must comply with the following guidelines:
Proposed Plant Quantity and Species
2. Irrigation Plan (Optional)
If Caltrans irrigation facilities are to be used, they must be included on the planting plan or on a separate drawing. Installation (or modification) of irrigation systems by adopters is not permitted.
3. Work Plan
Your work plan must describe how the following planting and maintenance operations will be accomplished. Any assistance to be provided by Caltrans (i.e., mowing or disposal of debris) must be included in the work plan.
A list of any Caltrans-owned underground facilities, such as irrigation and electrical installations, will be supplied by Caltrans. It is the adopter’s responsibility to contact the Underground Service Alert (USA) at 1-800-227-2600 for identification of underground lines that are not owned by Caltrans. USA must be called at least two full working days prior to breaking ground. If underground lines are found, you must call the Adopt-A-Highway representative listed on your Encroachment Permit before proceeding.
Use of Herbicides: If your work plan includes the use of herbicides, please request a copy of the Working With Contractors or the Caltrans Licensing Requirements for Adopt-A-Highway Volunteers Using Herbicides from your District Adopt-A-Highway Coordinator before proceeding. Only Caltrans-approved herbicides may be used on the State right of way.
Use of Motorized Equipment: It is recommended that only Adopt-A-Highway service contractors be permitted to use motorized equipment to perform adoption tasks. However, at the discretion of Districts, volunteers who routinely perform landscape maintenance tasks in a professional capacity, may be permitted to use motorized equipment.
Use of Contractors: If your group intends to hire an Adopt-A-Highway service contractor to perform any portion of your adoption work, please obtain a copy of the Working With Contractors
handout from your District Adopt-A-Highway Coordinator before proceeding.
4. Work Schedule for Tree and Shrub Planting and Maintenance Activities
A proposed, five-year work schedule must be submitted along with the plans. The schedule must give dates for all of the activities mentioned in your work plan. Usually, the best time to plant is after the first rain, in the Fall or Winter, so that the plants can become established during the rainy season. Local weather conditions will determine the best planting dates and watering frequencies.
Statewide guidelines require that you provide weed control a minimum of two times a year. How-
ever, you may be required to work more often if necessary to keep the area in a neat and clean
condition. Plan to control weeds before they reach six inches in height or before they produce seeds. In order to avoid accidentally starting a fire, do not plan to use power equipment for weed control during periods when weeds and brush are dry.
Sample items to include in your work schedule:
Note: Changes to work schedules once a permit has been issued must be approved by the District Adopt-A-Highway Coordinator.
5. Requirements for Renewing Tree and Shrub Planting Adoptions
Near the end of the permit period, your adoption site will be reviewed by a District Maintenance
field representative and either a District Landscape Architect or a District Landscape Specialist. If changes in adoption requirements are recommended (i.e. replacement of dead plants with a different species), the District Adopt-A-Highway Coordinator will communicate these to you.
Groups who wish to submit an application for another five-year permit period must provide a new or amended planting plan and/or work plan to reflect any changes. If there are no changes, copies of existing plans may be submitted along with the application.
Whether or not there have been any changes in the adoption requirements, all groups who reapply must provide a revised work schedule for the new permit period.
Once all plants can survive without supplemental watering provided by the adopter, the adoption will be considered complete. Groups with completed tree and shrub planting adoptions may be offered the opportunity to convert to a vegetation control adoption when the current permit period expires. Vegetation control adopters must remove weeds from the entire, three-acre site, not just around the plants. Adopt-A-Highway courtesy signs will be removed from sites that are not converted to vegetation control adoptions.