Plant Establishment Clause Samples

Plant Establishment. Plant establishment periods for highway planting performed in conjunction with a roadway construction project must follow the policy described in this section under the heading “Separate Contract Requirement for Highway Planting Work on Roadway Construction Projects.” Plant establishment periods for highway planting performed under a separate contract from a roadway construction project must be three years in length. Plant establishment periods for required mitigation planting may exceed three years when required by a regulatory agency. Exceptions to this policy must receive concurrence from both district maintenance and the district landscape architect and approval from the Headquarters Landscape Architecture Program.

Plant Establishment. The rate at which full site coverage by vegetation is achieved, after completion of the roadwork part of a contract, depends on a combination of factors, including site environmental and soil conditions, mulch application, and water treatment. It also depends on design and maintenance decisions. Design issues include plant species selection, types specified (large or small trees, shrubs, ground cover, etc.), size, and spacing. Maintenance issues include herbicide use and plant care during establishment. WSDOT landscape architects and restoration designers have experimented with design approaches and developed successful plant combinations and communities that respond to varied environmental conditions, requirements, and changing aesthetic preferences. Successful plant establishment depends on appropriate maintenance, with IVM being an important management approach and application tool for selecting and using the most appropriate maintenance methods. The Northwest Region's plant establishment crew is another way in which WSDOT is successfully responding to this critical period in the life cycle of all roadside vegetation. The plant establishment period for large-scale roadway construction contracts is typically three years. Urban roadsides are more stressful environments than typical planting conditions, and plants may be slower to become established. As a result, it may be desirable to have longer plant establishment periods for urban projects. Plant loss, during the establishment period, is typically due to installation of plants outside of the planting window, lack of watering or other care by the contractor, and/or acceptance of plants that were not hardened off, all of which can be controlled by careful observation and acceptance of installation by WSDOT designers. Plants replaced at the end of the three-year plant establishment period are essentially newly planted, i.e., less than fully established, when the project is handed over to WSDOT for maintenance. Projects in which the percentage of replaced plants is high require considerably more work by WSDOT maintenance personnel than do fully established projects and place an undue burden on maintenance resources and budgets. Indeed, all work that disturbs established roadside vegetation, even small-scale work such as installing light poles, utility infrastructure, etc., results in increased work for maintenance, as it converts areas of existing roadsides from relatively low maintenance levels to conditi...

Plant Establishment. Strong plant establishment with effective weed control is a necessary first step to ensure low lifecycle costs for projects. The plant establishment period is typically three years following plant installation. This period is intended to quickly, fully, and densely establish desired plants in a weed-free state on roadsides to minimize the potential for subsequent weed invasion, which is more likely to occur on bare or un-vegetated ground. Roadsides with poorly established vegetation at the end of the establishment period fail to meet WSDOT specifications, and if accepted by WSDOT they will result in extra, unbudgeted work for WSDOT maintenance crews. Transferring roadside projects to maintenance crews in poorly established conditions may result in short-term savings but will increase the likelihood of long-term weed infestation problems.

Plant Establishment. Over the 80 Working Days o The Project Manager will support the project on a limited basis, about 0.5 hours per week, on the average. o The Senior Documentation Specialist will support the project part time, or 20 hours per week, on the average. o The CITY will perform all certified payroll reviews – no Consultant Certified Payroll Specialist is included in this project team. o The Onsite Construction Observer will support the project full time, or 42.5 hours per week, on average. o Design Engineer of Record (Parametrix) support is anticipated as needed for submittal reviews, RFI’s, Change Management, and other tasks as identified in the Scope of Work. It is assumed that budget related to Engineer of Record Construction Support is included under separate contract between Parametrix and the City. Night Work o Night work is not anticipated for this project. Close Out o From Substantial Completion to Final Completion, budget assumes: o 40 hours for Document Specialists over 6 weeks, and o 30 hours for Onsite Construction Observer over 2 weeks during punchlist activities The Consultant shall subcontract with HWA Geosciences for materials testing, the frequency of such tests being performed as required by Contract requirements.

Plant Establishment. Monitor contractor efforts for the plant establishment throughout the project including intermittent inspection of plants and verifying that irrigation systems wor properly and that all plants are established or replaced.

Plant Establishment. 50 Roadside Maintenance and Integrated Vegetation Management (IVM) ............................. 53 WSDOT Organizational Structure/Considerations. ............................................................... 56 Use of State Departments of Corrections (DOC) Crews and Volunteers ............................ 57