Specifications include, but are not limited to: Project work includes the removal of existing wall, wall backfill and alley pavement. Construction of new block wall, backfill and alley pavement. It is recommended that Contractors become familiar with existing site conditions prior to bidding.; 1. THIS ITEM SHALL INCLUDE ALL LABOR, EQUIPMENT, AND MATERIAL NECESSARY TO CONSTRUCT GRAVITY RETAINING WALL AS IDENTIFIED ON THE PLANS, CONSISTING OF CONCRETE MODULAR BLOCKS TO THE LINES AND GRADES SHOWN ON THE CONSTRUCTION PLANS. THIS SHALL INCLUDE CONSTRUCTION OF THE CONCRETE BASE LEVELING PAD, INSTALLATION OF THE BLOCKS, GRANULAR BACKFILL, GEOTEXTILE FABRIC, 4" DRAIN TILE, MISC. DRAIN RECONNECTS & WALL PENETRATIONS.; 2. THE CONCRETE MODULAR BLOCK WALL SYSTEM SHALL MEET THE FOLLOWING REQUIREMENTS: 3. CONCRETE BLOCK: 4,000 PSI 28 DAY COMPRESSIVE STRENGTH, 4.5 TO 7.5 PERCENT ENTRAINED AIR BY VOLUME. WEIGHING 145 LBS/CF.; 4. TEXTURE AND COLOR: LEDGESTONE TEXTURE STAINED TO MATCH EXISTING LIMESTONE WALL TO BE APPROVED BY OWNER PRIOR TO PLACING ORDER; 5. THE RETAINING WALL SHALL BE CONSTRUCTED IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS. INSTALLER OF WALL SYSTEM SHALL HAVE HAD PREVIOUS EXPERIENCE WITH THIS TYPE OF WALL CONSTRUCTION.; 6. WALL SHALL BE DESIGNED AND CONSTRUCTED PER SUDAS 9071. THIS REQUIRES THE CONTRACTOR TO SUPPLY A STAMPED DESIGNED PER SECTIONS 1.03-B AND 1.07-A. IN THE EVENT A MANUFACTURE RECOMMENDATION CONTRADICTS SUDAS SPECIFICATIONS USE SUDAS SPECIFICATION; 7. FREESTANDING STRAIGHT TOP BLOCKS SHALL HAVE A TEXTURED SURFACE ON TOP OF BLOCK.; 8. BLOCKS SHALL BE FREE OF STAINS, DEFECTS, CRACKS, AND/OR CHIPS; 9. THE CONTRACTOR SHALL EXCAVATE TO THE LINES SHOWN ON THE PLANS BEING CAREFUL NOT TO DISTURB EMBANKMENT MATERIALS BEYOND LIMITS NEEDED. OVER EXCAVATION SHALL NOT BE PAID FOR, AND REPLACEMENT WITH COMPACTED FILL AND/OR WALL SYSTEM COMPONENTS WILL BE REQUIRED AT CONTRACTOR EXPENSE. THE COST OF EXCAVATION BEHIND THE RETAINING WALL SHALL BE INCIDENTAL TO THIS PAY ITEM. THE CONTRACTOR IS RESPONSIBLE FOR DETERMINING ANY TEMPORARY SHORING REQUIRED TO MAINTAIN EXCAVATION AND/OR PROTECT ADJACENT PROPERTY AND UTILITIES.; 10. THE BASE LEVELING PAD SHALL BE CONSTRUCTED ACCORDING TO MANUFACTURER'S RECOMMENDATIONS AND SHALL BE A MINIMUM THICKNESS OF 1 FOOT OF UNREINFORCED CONCRETE WITH A MIN. 1,500 PSI 28 DAY COMPRESSIVE STRENGTH.