08 - Laserfiche WebLink

backfilled with 2 sack slurry and re-paved. The additional work is being completed under time and material. The estimated cost increase is $12,000. b. South Isolation Valve Tie In. A new isolation valve for the southside of the bridge was scheduled to be installed at the flex tend installation to support the shutdown of the water line. Due to a conflict with a light pole and existing utilizes a new location 35' south of the work had to be selected. When excavating a streetlight power conduit had to be relocated. Additional work for a new excavation, fittings and electrical work is estimated at$13,500. c. Hazardous Pipe Removal. At the new isolation valve tie-in locations, the pipe was found to be ACP instead of the DIP found at the bridge. A specialty hazardous material contractor was brought in to perform the cutting and removal of the ACP pipe. The cost to complete the work is estimated at $9,500. d. North Flex Tend Installation. At the north flex tend installation the existing pipe coming through the bridge back wall has sagged down several inches exceeding the pipe manufactures recommendations at the joint. The pipe will be removed, and a new piece of pipe will be installed back the existing bell in the bridge at Time and Material. Neoprene will be added around the pipe and the backfill grouted as the existing is a rough jack hammered opening. The estimated cost for work is $10,000. e. Restoration. Due to the additional tie-in locations and exploratory digging to find the pipes additional curb and gutter and planting is required. The estimated cost for restoration is $5,000. 10. PCO#10—$5,000 For Bridge 33C-0099. Demo concrete and custom paving seat in SW corner around shallow gas line coming thru the bridge. 11. PCO#11 - $3,000 For Bridge 33C-0099. Remove old concrete kicker at south flex-tend that interferes with the pipe installation. (Non-participating) 12. PCO#12 - $6,500 For Bridge 33C-0099 Replace one K-rail crash attenuator. (Two damaged to-date) 13. PCO#13 - $30,000 For Bridge 33C-0099. Install a leveling course to return the bridge deck to grade. The contract plans identified removal and installation of 2" of asphalt pavement. When removing the pavement, it was found that there was a grade break in the deck and a wedge of asphalt about 11"thick was used to create 2% cross slope in the top pavement surface. The work involves placement of approximately 100 tons of leveling. 14. PCO#14 - $42,500 For bridge 33C-0099. The City of Pleasanton is overlaying Santa Rita Road as part of annual resurfacing program. At the time of bid it was anticipated the work at the bridge would be completed prior to the City's paving project. The paving was pushed to the end of the schedule but due to complications with the water line and adding the additional phase of construction the work on the bridge is not completed. The limits of paving needs to be extended approximately 65' beyond the bridge approach slabs to not interfere with work on the bridge. This will add approximately 170 tons of additional paving 2