Hydro -Seeding
739.01 DESCRIPTION. Prepare seed beds and sow grass seed utilizing
hydro -seeding equipment and methods in order to establish a turf grass cover to areas designated on the plans or as directed.
739.02 BED PREPARATION. Prepare seed beds in accordance with
717.04 .
739.03 HYDRO -SEEDING GENERA L. Hydro -seeding consists of
mixing and applying seed, commercial fertilizer, lime, polyacrylamide tackifier, and mycorrhizal inoculum with paper or wood fiber and water. Uniformly spread seed and commercial fertilizer over the area at the rates specified in Table 717-1 and Table 718-1. Mix and apply paper or wood fiber with the seed in accordance with the manufacturer’ s recommendations and as approved by the engineer. Fertilizer and lime may be included in the seeding slurry for application during hydro -seeding operations. All of these materials may be included in a single manufacturer’s hydro -seeding system. Use Approved Materials List systems . Determine the application rate for pellet -inoculated seed by using the seed mass exclusive of inoculant materials. Mix the materials with water according to the manufacturer’s specifications. Mix the materials in a tank with a built-in continuous agitation system with sufficient operating capacity to produce a homogeneous mixture, and with a discharge system that will apply the mixture at a continuous and uniform rate. Provide a tank with a minimum capacity of 962 gallons . The engineer may authorize use of equipment of smaller capacity if it is demonstrated that the equipment is capable of performing all operations satisfactorily. A dispersing agent may be added to the mixture provided evidence is furnished showing that the additive will not affect germination. Do not use any material considered detrimental, as determined by the engineer. Do not apply any mixture containing polyacrylamide tackifier during rainy weather, or when soil temperatures are below 41°F, or if the wind speed is above 20 miles per hour . Do not permit pedestrian traffic or equipment to enter areas where hydro -seeding has been applied. Hydro -Seeding
739.01 DESCRIPTION. Prepare seed beds and sow grass seed utilizing
hydro -seeding equipment and methods in order to establish a turf grass cover to areas designated on the plans or as directed.
739.02 BED PREPARATION. Prepare seed beds in accordance with
717.04 .
739.03 HYDRO -SEEDING GENERA L. Hydro -seeding consists of
mixing and applying seed, commercial fertilizer, lime, polyacrylamide tackifier, and mycorrhizal inoculum with paper or wood fiber and water. Uniformly spread seed and commercial fertilizer over the area at the rates specified in Table 717-1 and Table 718-1. Mix and apply paper or wood fiber with the seed in accordance with the manufacturer’ s recommendations and as approved by the engineer. Fertilizer and lime may be included in the seeding slurry for application during hydro -seeding operations. All of these materials may be included in a single manufacturer’s hydro -seeding system. Use Approved Materials List systems . Determine the application rate for pellet -inoculated seed by using the seed mass exclusive of inoculant materials. Mix the materials with water according to the manufacturer’s specifications. Mix the materials in a tank with a built-in continuous agitation system with sufficient operating capacity to produce a homogeneous mixture, and with a discharge system that will apply the mixture at a continuous and uniform rate. Provide a tank with a minimum capacity of 962 gallons . The engineer may authorize use of equipment of smaller capacity if it is demonstrated that the equipment is capable of performing all operations satisfactorily. A dispersing agent may be added to the mixture provided evidence is furnished showing that the additive will not affect germination. Do not use any material considered detrimental, as determined by the engineer. Do not apply any mixture containing polyacrylamide tackifier during rainy weather, or when soil temperatures are below 41°F, or if the wind speed is above 20 miles per hour . Do not permit pedestrian traffic or equipment to enter areas where hydro -seeding has been applied. Hydro -Seeding
739.01 DESCRIPTION. Prepare seed beds and sow grass seed utilizing
hydro -seeding equipment and methods in order to establish a turf grass cover to areas designated on the plans or as directed.
739.02 BED PREPARATION. Prepare seed beds in accordance with
717.04 .
739.03 HYDRO -SEEDING GENERA L. Hydro -seeding consists of
mixing and applying seed, commercial fertilizer, lime, polyacrylamide tackifier, and mycorrhizal inoculum with paper or wood fiber and water. Uniformly spread seed and commercial fertilizer over the area at the rates specified in Table 717-1 and Table 718-1. Mix and apply paper or wood fiber with the seed in accordance with the manufacturer’ s recommendations and as approved by the engineer. Fertilizer and lime may be included in the seeding slurry for application during hydro -seeding operations. All of these materials may be included in a single manufacturer’s hydro -seeding system. Use Approved Materials List systems . Determine the application rate for pellet -inoculated seed by using the seed mass exclusive of inoculant materials. Mix the materials with water according to the manufacturer’s specifications. Mix the materials in a tank with a built-in continuous agitation system with sufficient operating capacity to produce a homogeneous mixture, and with a discharge system that will apply the mixture at a continuous and uniform rate. Provide a tank with a minimum capacity of 962 gallons . The engineer may authorize use of equipment of smaller capacity if it is demonstrated that the equipment is capable of performing all operations satisfactorily. A dispersing agent may be added to the mixture provided evidence is furnished showing that the additive will not affect germination. Do not use any material considered detrimental, as determined by the engineer. Do not apply any mixture containing polyacrylamide tackifier during rainy weather, or when soil temperatures are below 41°F, or if the wind speed is above 20 miles per hour . Do not permit pedestrian traffic or equipment to enter areas where hydro -seeding has been applied. Prior to planting, the engin eer will contact the Department’ s Roadside Development Coordinator to select the varieties of seed to be used.
739.04 MEASUREMENT. Quantities for hydro -seeding will be
measured by the acre.
739.05 PAYMENT. Payment for hydro -seeding will be made at the
contract unit price per acre and shall include the seed, mulch, tackifier, lime, fertilizer, water and bed preparation as a system and all labor and equipment necessary to complete the work. Payment will be made under: Item No. Pay Item Pay Unit 739-01 Hydro -Seeding Acre Prior to planting, the engin eer will contact the Department’ s Roadside Development Coordinator to select the varieties of seed to be used.
739.04 MEASUREMENT. Quantities for hydro -seeding will be
measured by the acre.
739.05 PAYMENT. Payment for hydro -seeding will be made at the
contract unit price per acre and shall include the seed, mulch, tackifier, lime, fertilizer, water and bed preparation as a system and all labor and equipment necessary to complete the work. Payment will be made under: Item No. Pay Item Pay Unit 739-01 Hydro -Seeding Acre Prior to planting, the engin eer will contact the Department’ s Roadside Development Coordinator to select the varieties of seed to be used.
739.04 MEASUREMENT. Quantities for hydro -seeding will be
measured by the acre.
739.05 PAYMENT. Payment for hydro -seeding will be made at the
contract unit price per acre and shall include the seed, mulch, tackifier, lime, fertilizer, water and bed preparation as a system and all labor and equipment necessary to complete the work. Payment will be made under: Item No. Pay Item Pay Unit 739-01 Hydro -Seeding Acre Section 740 Construction Layout
740.01 DESCRIPTION. This section sets forth requirements for all
construction layouts. Establish lines and grades, take all cross -sections, and stake out the construction work in accordance with these specifications, plan details, and as directed. Construction layout also includes, but is not limited to, the layout of pavement striping and raised pavement markers, setting of line and grade for construction of superelevated curves or other applicable work items, and assisting in the coordination of utility relocation activities to ensure that the placement of relocated facilities will not conflict with required construction.
740.02 CONSTRUCTION REQUIRE MENTS. Establish all lines and
grades and stake out all project work, including sufficient vertical and horizontal control points for utility relocations for use by the Department and others. The project survey control and horizontal alignment are based on the Louisiana State Plane Coordinate System. The construction plans and/or right -of-way map depicts the coordinates and datum of sufficient survey control points to establish or re-establish horizontal control throughout the length of the project. Employ such methods as approved by the project engineer for the location of the project alignment and other necessary survey control points in accordance with currently acceptable surveying standards and practices. When required, the Department will also provide one bench mark on or near the project for vertical control. Verify the values of any intermediate bench marks shown on the plans, by checking against the bench mark established by the Department for vertical control. Employ qualified engineering and surveying personnel experienced in layout and construction of highways and bridges to correctly establish and keep complete and comprehensive records (field books or approved electronic files) of all lines and grades necessary from initial layout to final acceptance. Provide sufficient qualified staff, of at least one employee, on site during utility relocation periods. Provide any necessary survey work to ensure there are no utility conflicts with required construction. Provide daily documentation of utility relocation activities for incorporation into the project diaries.