918.01 1002 SECTION 918 – LANDSCAPING MA TERIALS
918.01 Grass Seed ................................ ................................ ................. 1002
918.02 Commercial Fertilizer ................................ ............................... 1004
918.03 Ammonium Nitrate ................................ ................................ ... 1005
918.04 Agricultural Limestone ................................ ............................. 1005
918.05 Mulch Material ................................ ................................ .......... 1005
918.06 Inoculants for Legumes ................................ ............................. 1005
918.01 Grass Seed
A.General Provide seed meeting the requirements of the Tennessee Department of Agriculture Chapter 0080 -05-06. The Producer must be on the Department’s Producer List. Pack grass seed in new bags or bags that are sound and not mended. The vendor sh all notify the Department before making shipments to allow the Department to arrange for inspection and testing of stock. The vendor shall furnish the Department a certified laboratory report from a Society of Commercial Seed Technologists accredited commercial seed laboratory or from a State seed laboratory showing the analysis of the seed to be furnished. The report from an accredited commercial seed laboratory shall be signed by a Registered Member of the Society of Commercial Seed Technologists. The D epartment may take samples of the seed to check against the certified laboratory report. Sampling and testing will be in accordance with the requirements of the Tennessee Department of Agriculture. Use commercial grade 10 -10-10 fertilizer or equivalent.
B.Seed Groups When a seed group is used, provide mixtures meeting the requirements specified in Tables 918.01 -1 through 918.01 -5, unless otherwise specified. 918.01 1003 Table 918.01 -1: Group A (February 1 -July 1) Kind of Seed Quantity, Percent by Weight Kentucky 31 Fescue 80 Korean Lespedeza 15 Annual Rye Grass 5 Table 918.01 -2: Group B (June 1 -August 15) Kind of Seed Quantity, Percent by Weight Kentucky 31 Fescue 75 Korean Lespedeza 15 German Millet 10 Table 918.01 -3: Group B1 (April 15 - August 15) Kind of Seed Quantity, Percent by Weight Bermudagrass (hulled) 70 Annual Lespedeza 30 Table 918.01 -4: Group C (August 1 -December 1) Kind of Seed Quantity, Percent by Weight Kentucky 31 Fescue 70 Annual Rye Grass 20 White Clover 10 Table 918.01 -5: Group C1 (February 1 -December 1) Kind of Seed Quantity, Percent by Weight Crown Vetch 25 Kentucky 31 Fescue 70 Annual Rye Grass 5 918.02 1004 Uniformly mix seed when forming Groups. Do not mix Group seed until each type seed that is used to form the Group has been tested separately and meets DOA requirements for purity and germination.
C.Over-Seeding Groups A, B, and C, when sown on slopes 3:1 and steeper, shall be over seeded with Sericea Lespedeza at the rate of 15 pounds per acre. When over-seeding is performed between February 1 and July 1, use Scarified Sericea Lespedeza with an additional 2 pounds per acre of Weeping Lovegrass. Between July 1 and December, use unhulled Sericea Lespedeza. Only use Group C1 when shown on the Plans.
D.Temporary Seeding For temporary seeding, use seed groups and approved varieties as specified in Table 918.01 -6. Table 918.01 -6: Temporary Seeding Seed Group (Season) Kind of Seed Percent by Weight Group D (January 1 – May 1) Annual Rye Grass 33-1/3% Korean Lespedeza 33-1/3% Spring Oats 33-1/3% Group E (May 1 – July 15) Sorghum-Sudan Crosses (1) 100% or German Millet (2) 100% Group F July 15 – January 1 Cereal Rye 66-2/3% Annual Rye Grass 33-1/3%
1.Dekalb Sudan SX11, Lindsey 77F, TN Farmer’s Co-op GHS-1 or GHS-2A.
2.German Millet, GaHi -1
918.02 Commercial Fertilizer
Provide a standard commercial fertilizer containing the specified percentages by weight of nitrogen, phosphoric acid, and potash. 918.03 1005 Furnish the fertilizer in standard containers, with the name, weight, and guaranteed analysis of the contents clearly marked. Ensure that the containers will adequately protect the fertilizer during handling and transporting. All commercial fertilizer shall comply with local, State, and Federal fertilizer laws.
918.03 Ammonium Nitrate
For ammonium nitrate, provide a standard commercial product, conforming to the requirements specified in 918.02 for other commercial fertilizers and having a minimum of 33 -1/2% nitrogen.
918.04 Agricultural Limestone
Provide agricultural limestone meeting the Department of Agriculture Tennessee Liming Materials Act ,
918.05 Mulch Material
Ensure that all hay and straw mulch materials are air dried and reasonably free of noxious weeds and weed seeds or other materials detrimental to plant growth on the highway or on adjacent agricultural lands. Provide hay derived from stalks of ap proved grasses, sedges, or legumes seasoned before baling or loading. Provide straw derived from stalks of rye, oats, wheat, or other approved grain crops. Both hay and straw shall be suitable for spreading with standard mulch blower equipment. Provide an approved tackifier, selected from the Department’s QPL for Erosion Prevention and Sediment Control, to hold mulch in place.
918.06 Inoculants for Legumes
For treating legume seed, provide inoculants composed of standard cultu res of nitrogen -fixing bacteria that are adapted to the particular kind of seed to be treated. Provide the inoculant in convenient containers, of a size sufficient to treat the amount of seed to be planted and that contain labels identifying the specified legume seed to be inoculated and the date period to be used. 919.01 1006 SECTION 919 – PAVEMENT MARKING MATERIAL AND MARKERS
919.01 Thermoplastic Pavement Marking Material ............................... 1006
919.02 Spray Thermoplastic Pavement Marking Material ..................... 1010
919.03 Preformed Plastic Pavement Marking Materials ........................ 1012
919.04 Raised Refle ctive Pavement Markers ................................ ......... 1012
919.05 Snowplowable Reflective Pavement Markers ............................ 1012
919.01 Thermoplastic Pavement Marking Material
Provide material conform ing to AASHTO M 249, with the following additions.
A.Materials Provide retroreflective pavement marking material of an alkyd/maleic based thermoplastic material consisting of homogeneously mixed pigments, filler, resins , and glass beads. Ensure that the pigment, beads, and filler are uniformly dispersed in the resin. The mate rial shall be manufactured from virgin material using no reprocessed components. Ensure that t he material is free from all skins, dirt, and foreign objects , and conforms to the requirements specified in Table 919.01 -1. Table 919.01 -1: Thermoplastic Pavem ent Marking Material Component White Yellow Binder, % minimum 19 19 TiO2 Pigment, % minimum 10 N/A Intermix Glass Beads , % minimum 35 35 Calcium Carbonate/ Fillers, % maximum 36 (1) 46 (1)
1.The amount of Calcium Carbonate and inert fillers shall be as recommended by the manufacturer, provid ed all other specifications are met.
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 1011–1014 of 1,072.