2400 33RD ST CONTRACT AGREEMENT 2016-01-01 MF Import

ATTACHMENT A TO SECTION 01900 REVISIONS TO THE STANDARD PLANS AND SPECIFICATIONS Through and Contraction Jo(nis Standard locations for through joints tor sidewalks are: (a) At street margins produced, and at 30-foot intervals. (h) To separate concrete driveways, stairways, curb ramps and their landings (rom sidewalks. (c) Around the vertical barrel of Eire hydrants, around utility poles and large diameter underground utility cover castings and vaulis, around canopy footings, when located in the sidewalk area. (d) Longitudinally batween concrete walks, curbs, paved planting strips, solid masonry or concrete �valls, building edges, and ihe beginning and ends of ramps where they abut. (e) To match as neariy as possible, the ihrough joints in the adjacent pavement and curb when sidewalk abuts curb. Transverse contraction joinis (dummy ioints; shall be constructed with premolded material 1/2" x 1- 1/2" wide, and set at approximately 15-toot intervals, or as decided by the Resident Engineer. At no time will joint spacing exceed 15 feet. Transverse and longitudinal through jcints as shown in the F'lans shall be 1/2 ii7ch thick premolded non-extruding joint material, cut to a widih equal to the Tull depth of the concrete, plus 112 inch. When installed, they sha�l be placed with top edge tlush wilh the finished surface of the concrete, in a perpendicular plane to the sur(ace and with the botlom edge embedded in the subgrades. All joinis shall be in straight alignment, except where placed in curved locations as required by the Drawings. Curb Ramps Curb ramps Type A, B, C-Modified, and Special shall be installed at locations designated on the drawings or marked in ihe field by ihe Resident Engineer. Where curb ramps are to be conshucted, ihe Contractor shall construct monolithic depressed curb and sidewalk as detailed in the Plans. - Cuib ramps shall be consiructed separately irom the sidewalk to produce a definite break line between ihe ramp and ihe sidewalk. A 3/8-inch non-extruded through joint material shall be installed between the curb and the sidewalk with edging as specitied in Section 8-14.3(3). The triangular shaped sidewing areas shall be brush finished with brushing parallel to the curb face. The adjacent sidewalk "V" groove scoring pattern shall not extend into the curb ramp sidewing areas. The inclined plane of ihe ramp shall have a coarse texiured surface in a diamond pattern as shown in the Plans. The long axis of ihe diamond shaped impression shall be perpendicular to ihe curb line. The 1/2-inch lip at the gutter line, shov;n on the Standard Drawings for curb ramps, has been deleted. Curb ramps shall be ilush with the gulter line. Concrete (or curb ramps shali not be colored, overlayed or topped. Curb ramps shall be considered as beginning at a point flush with lhe pa.ement and terminating at a point flush with the sidewalk landing. The slopino triang�lar shaped sidewings are considered part of the curb ramp. PpVER FG:�NDATIONS Description This work shall consis; of cons�ructing cement concrete foundations for n,;anite and flagstone pavers, in accordance with the detai�s shown in �he Plans. Materials The foundation material consis�s c;f ihe same cement concrete mix as used for sidewalks. PERMANENT SIGNING Description The Contractor shall refer to Arohitectural provisions for additional required signage. Capital Projects Commuter Rail Attachment A to Section 01900 - 30 IFB No. RTA/CP 21-06 � Everett Station Phase 2REVISI�NS TO THE STANDARD PLANS AfJD SPECIFICATIONSAddendum No.4