Published by department of transportation
-3.03–20-3.07 RESERVED 20-4 PLANT ESTABLISHMENT WORK 20-4.01 GENERAL
Download 6.74 Mb.
|
- Navigate this page:
- 20-4.01C(2) Notification
- 20-4.01D Quality Assurance
- 20-4.02 MATERIALS 20-4.02A General Reserved 20-4.02B Fertilizers Fertilizer must comply with section 20-3.01B(4). 20-4.03 CONSTRUCTION
- 20-4.03B Plant Growth Control
- 20-4.03D Weed Control Control weeds under section 20-1.03C(3). 20-4.03E Plant Staking
20-3.03–20-3.07 RESERVED20-4 PLANT ESTABLISHMENT WORK 20-4.01 GENERAL20-4.01A SummarySection 20-4 includes specifications for performing plant establishment work. Plant establishment consists of caring for the plants, including: 1. Controlling plant growth 2. Fertilizing 3. Controlling rodents, insects, and weeds 4. Replacing damaged plants 5. Watering 6. Operating irrigation system 7. Repairing new irrigation system
If any component of the electric automatic irrigation system is operated manually, the day will not be credited as a plant establishment working day unless the manual operation is authorized. Working days on which you fail to adequately perform plant establishment work are not credited as plant establishment working days.
20-4.01B DefinitionsType 1 plant establishment: Plant establishment period with the number of working days specified for plant establishment starting after all work has been completed, except for plant establishment work, and other bid items specified to be performed until Contract acceptance. Type 2 plant establishment: Plant establishment period with the number of working days specified for plant establishment starting after all planting work has been completed, except for plant establishment work, and other bid items specified to be performed until Contract acceptance. The Department will not accept the Contract unless the plant establishment work has been satisfactorily performed for at least the number of working days specified for plant establishment. If maintenance and protection relief is granted for a portion of the work, Type 2 plant establishment period for that portion is the time between completion of all planting work, except for plant establishment work, and the granting of maintenance and protection relief. The Department will not grant relief unless the plant establishment work in the completed portion of the work has been satisfactorily performed for at least the number of working days specified for the plant establishment period. 20-4.01C Submittals20-4.01C(1) GeneralSubmit seasonal watering schedules for use during the plant establishment period within 10 days after the start of the plant establishment period. Remote irrigation control system watering schedule must use the remote irrigation control system software program. Submit updated watering schedules within 5 business days after any changes have been made to the authorized schedules. Submit a revised watering schedule for each irrigation controller at least 30 days before completion of the plant establishment period.
Notify the Engineer at least 5 business days before applying each application of fertilizer. 20-4.01D Quality AssuranceProvide training by a qualified person on the use and adjustment of the installed irrigation controllers no more than 30 days before completion of the plant establishment period. Perform a final inspection of the plant establishment work in the presence of the Engineer 20 to 30 days before Contract acceptance. 20-4.02 MATERIALS20-4.02A GeneralReserved 20-4.02B FertilizersFertilizer must comply with section 20-3.01B(4). 20-4.03 CONSTRUCTION20-4.03A GeneralDispose of surplus earth accumulated in roadside clearing and planting areas. Remove the tops of foliage protectors if plants become restricted. Remove foliage protectors, including support stakes, within 30 days before the completion of the plant establishment period. Keep plant basin walls well formed. Clean new wye strainers and existing wye strainers that are a part of the new irrigation system annually until the completion of the plant establishment period. The last cleaning must be done within 15 days before the completion of the plant establishment period. Remove, clean, and reinstall new filters and existing filters that are a part of the new irrigation system annually until the completion of the plant establishment period. The last cleaning must be done within 15 days before the completion of the plant establishment period. 20-4.03B Plant Growth ControlTrim and mow turf areas as specified for sod in section 20-3.02C(3)(e). Dispose of trimmed and mowed material. If irregular or uneven areas appear within turf areas, restore to a smooth and even appearance. Reseed turf seed areas. Prune plants planted as part of the Contract as authorized. Remove plant growth that extends within 2 feet of sidewalks, curbs, dikes, shoulders, walls or fences. Remove new and existing ground cover from within the plant basins, including basin walls, turf areas, and planting areas within edging. Vines adjacent to walls and fences must be kept staked and tied. Train vines on fences and walls or through cored holes in walls. 20-4.03C FertilizingApply fertilizer to the plants as described and water into the soil after each application. Apply fertilizer with a mechanical spreader, whenever possible. 20-4.03D Weed ControlControl weeds under section 20-1.03C(3). 20-4.03E Plant StakingReplace plant stakes that are inadequate to support plants with larger stakes. Remove plant stakes when the Engineer determines they are no longer needed. 20-4.03F Replacement PlantsReplacement plants must comply with section 20-3.01C(4). Replacement of plants up to and including the 125th plant establishment working day must be with a plant of the same size as originally specified. Plants of a larger container size than those originally specified for replacement plants may be used during the first 125 working days of the plant establishment period. Plants replaced after the 125th plant establishment working day must be the size shown in the following table:
Other replacement plants must be the same size as originally specified. Replacement ground cover plants must have the spacing shown in the following table:
20-4.03G WateringOperate the electric automatic irrigation systems in the automatic mode unless otherwise authorized. Water plants utilizing the remote irrigation control system software program unless authorized. Implement the watering schedule at least 10 days before completion of the plant establishment period.
Directory: esc esc -> Biblical Eschatology Presentation by: D. Paul Beck May 4, 2016 Ground Rules esc -> Mikael Håfstrӧm Screenplay by Miles Chapman and Arnell Jesko esc -> Escort affinity Program for Audi Club Members esc -> Preliminary entry form pistol esc -> Application form esc -> Request from Asian and Pacific Training Centre for Information and esc -> Constitution of the engineering student council university of maryland esc -> Subdisciplines of Earth Science Geology; study of the earth Download 6.74 Mb. Share with your friends:
| ||||||||||||||||||||||||||||||||||||||