409.21 Bituminous Driveway 409.21.1 General - The existing bituminous driveway shall be removed to the limits indicated and to a depth of eight (8) inches and the material so removed and disposed of by the applicant. Pavement - The bituminous pavement replacement shall be as follows: 409.21.2.1 Sub-base - Three (3) inches compacted depth of 2A aggregate (crushed gravel or crushed stone). Base - Four (4) inches in compacted depth of ID-2 binder. Wearing Surface - One (1) inch in compacted depth of FJ-1 bituminous wearing course. 409.21.2 409.21.2.2 409.21.2.3 409.21.3 Joint Between New and Old Bituminous Driveway - The joint between the old and new bituminous driveway shall be neatly sawn and then sealed with the same bituminous material as used in sealing the gutter and shall be twelve (12) inches in width with an overlap of the old driveway of six (6) inches. 409.22 Bituminous Seal Coat 409.22.1 Method of Application – The bituminous seal coat shall be applied in accordance with Section 470 of the PENN DOT Form 408, Latest Edition. Aggregate shall be crushed stone, crushed gravel or slag. When Seal Coat is Required - The bituminous seal coat shall be applied where it is required to protect the existing concrete base from further deterioration after the existing bituminous surface has been removed. The bituminous seal coat shall be applied as soon after the existing concrete base has dried sufficiently for seal coat application. The seal coat is also to prevent destruction of the base by vehicles traveling over said base. 409.22.2 409.23 Minor Casting Adjustments - Minor casting adjustments (2 ½ inches or less up or down) shall be made so that all castings conform to the finished grade of the street. The raising and lowering of castings shall be done by adding to or deleting a portion of the masonry work. The base disturbed or removed shall be replaced with the type of pavement in which the casting is located. XVI – Appendix 6 (63)