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Consult Roadside Development for assistance in determining the need for and the rates and quantities of seeding, fertilizing, and mulching. Roadside Development will provide a letter that lists the required bid items and the notes to be included in Tabulation 100-4A. Quantity is typically estimated by determining the area disturbed from edge of shoulder to 8 feet past the need line.
If the seeding, fertilizing, and mulching items contain less than 1 acre, they will typically be noted as incidental to construction and no bid item for these units will be required in the plan. When this is the case, one or more of the following standard notes is included in the plans:
Standard Note 232-3A (Rural Seeding).
Standard Note 232-3B (Urban Seeding).
Standard Note 232-3C (Native Grass Seeding).
Standard Note 232-7 (Salvage and Removal Projects).
Standard Note 232-11 (Stabilizing Crop Seeding).
See Section 1E-9 for more information regarding these standard notes.
When seeding is a bid item, seed mixtures should not be included in the Estimate Reference Information unless the mixture is different than the mixture provided in Section 2601 of the Standard Specifications.
When projects require Wetland Seeding, the Location and Environment Bureau will assist with presenting the areas in the plans. Designers will calculate the areas.
Permanent erosion control of ditches may require Special Ditch Control, Turf Reinforced Mat (TRM), or rock. Refer to the Permanent Erosion Control Matrix in the Designer Info for Standard Road Plan EC-104 to determine the type of material appropriate for different ditch grades and lengths.
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