King County, with members of the Regional Operations and Maintenance Program (ROADMAP) and Herrera Environmental Consultants and used the information from the field evaluation, literature review, and input from ROADMAP members to develop a ditch maintenance matrix, field guide, and fact sheets to improve maintenance, operations, and design.
For field staff performing ditch maintenance:
For administrative or office staff overseeing and providing direction for stormwater operations, maintenance, and/or stormwater capital projects:
The project team also prepared a set of GIS and field data collection tools to support a roadside ditch inventory and assessment. These tools include: