2004-284 - Laserfiche WebLink

Home Browse Search

EXHIBIT A SCOPE OF WORK HIGHLAND DRIVE STORM SEWER REPLACEMENT AT IRFWCD B- 10 CANAL .l This project is for the replacement of Two (2 )- 27 x 43" corrugated metal pipes plugged and collapsed during Hurricane Jeanne , with 1 - 48" x 76 " elliptical reinforced concrete pipe . The �.. work associated with this is as followed : 1 . Location - IRFWCD B- 10 Canal under Highland Drive ( Highland Drive south of 215« Street SW ) . 2 . Highland Drive has been , and will remain closed during construction between 13`h Avenue and 21 " Street SW . The roadway , Miami curb , and most of the existing 2-27" x 43 " CMP pipes have been removed and an open ditch exists . dw 3 . An existing metal drainage structure will be required to be removed and replaced with an FDOT J-7 manhole on the east side of Highland Drive . 4 . The proposed storm water improvement is in direct conflict with an existing active 10- inch water main located along Highland Drive , The existing water main shall be 'W abandoned in place , where feasible , and a new ductile iron water main installed that will allow for installation of the storm water improvements . The following is a general overview of the work to be performed . 4a . A 10-inch asbestos cement (AC) water main is conflicting with the proposed construction of the storm drainage pipe and must be lowered. +� 4b . Isolate the existing AC water main on each side of the proposed pipe crossing . Provide temporary water service to existing residential 'homes impacted by the water main shut down . .. 4c . Isolate the section of main to be abandoned / shutdown. Install a line -stop valve on each side of the pipe crossing . Provide thrust restraints to prevent movement of the installed valve . 4d. Remove or abandon in-place the 10 -inch AC pipeline . Only pipe that has been pressure grouted or crushed in-place will be accepted as abandoned. 4e . Install ductile iron water main along with four (4) ductile iron 45 -degree fittings to the Aw proper depth of cover to cross under the storm drain lines . 4f. Install two (2) 10-inch gate valves with valve boxes & cover. A 10 -inch gate valve shall be installed on each side of the pipe crossing . 4g. Install blow off taps and flush the isolated section of water main while introducing liquid "` chlorine (disinfectant) . The use of chlorine tablets is prohibited . 4h . Perform hydrostatic pressure test to 125 -psi minimum for 2-hours . 4i . Perform 2 -day bacteriological testing and analysis pursuant to FDEP . " 4j . All work is to be performed in accordance with Indian River County Utility Services design & construction standards as well as the Florida Department of Environmental Protection (FDEP) . 5 . 48" x 76 " ERCP pipe will be installed , backfilled and roadway constructed ( 10 " shellback base (2 lifts ) and 2" Type S - 1 Asphaltic Concrete ) . Miami curb shall be installed and .. match line and grade of existing Miami curb (approximately 56 LF ) . 6 . All disturbed areas shall be sodded with bahia sod or match existing . 7 . Rubble Rip Rap shall be instil et :; on the west side of the proposed 48 " x 76" ERCP . aw 8 . Guardrail shall be reset on west side of Highland Drive . 9 . All work is to be performed in accordance with FDOT Standard Specifications for Road and Bridge Construction (2004 ) , dr .r do FAEngineeringZapital Projects\Highland Drive Storm Sewer ReplacementWEANNE EMERGENCY CONTRACT 2004.doc 12