Small Diameter High Pressure Water Main Replacement Replacement Project, Northshore Utility District, King County, WA #C2106

$2,500,000 to $3,000,000

Plans
Specs

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Builders Exchange of Washington, Inc. Subs and Suppliers

Owner:
Northshore Utility District
6830 NE 185th Street
Kenmore, WA 98028
425-398-4400
Fax: 425-398-4430
https://www.nud.net/permits-construction/rfp-posts-list/

Contact: Sardar Muntasir
smuntasir@nud.net

Issued by:
www.bxwa.com

Description:
The project consists of the following work:

Schedule A – 190/35 Water Main Replacement
Schedule A consists of the installation of approximately 18 linear feet of 8" restrained joint ductile iron water main, 280 linear feet of 6” restrained joint ductile iron water main, the replacement of seven (7) 1” water services, one (1) 2” blowoff assembly, appurtenances, and one connection to the existing system. Existing 2” water main and appurtenances shall be abandoned in place. Restoration includes trench patching, asphalt grind and overlay, and curb replacement.

Schedule B – 190/60 Water Main Replacement
Schedule B consists of the installation of approximately 350 linear feet of 6” restrained joint ductile iron water main, the replacement of eleven (11) 1” water services, one (1) 2” blowoff and air-vac assembly, appurtenances, and one connection to the existing system. Existing 2” water main and appurtenances shall be abandoned in place. Restoration includes trench patching, asphalt grind and overlay, and curb and concrete replacement. In addition, all sewer manhole castings in the overlay area will be replaced.

Schedule C – 198/64 Water Main Replacement
Schedule C consists of the installation of approximately 260 linear feet of 6” restrained joint ductile iron water main, the replacement of seven (7) 1” water services, one (1) 2” blowoff assembly, appurtenances, and one connection to the existing system. Water main is replaced primarily within a private utility and access easement. Existing 2” water main and appurtenances shall be abandoned in place. Restoration includes trench patching, asphalt grind and overlay. In addition, all sewer manhole castings in the overlay area will be replaced.

Schedule D – 145/104 Water Main Replacement
Schedule D consists of the installation of approximately 360 linear feet of 6” restrained joint ductile iron water main, the replacement of nineteen (19) 1” water services, three (3) 2” blowoff assemblies, appurtenances, and three connections to the existing system. Existing 2” water main and appurtenances shall be abandoned in place. Restoration includes trench patching, asphalt grind and overlay, curb and concrete replacement. In addition, all sewer manhole castings in the overlay area will be replaced.

Schedule E – Juanita/88 Water Main Replacement
Schedule E consists of the installation of approximately 190 linear feet of 6” restrained joint ductile iron water main, the replacement of six (6) 1” water services, one (1) 2” blowoff assembly, one (1) fire hydrant assembly, appurtenances, and one connection to the existing system. Existing 2” water main and appurtenances shall be abandoned in place. Restoration includes trench patching, asphalt grind and overlay.

Schedule F – 120/80 Water Main Replacement
Schedule F consists of the installation of approximately 475 linear feet of 8” restrained joint ductile iron water main, 365 linear feet of 6” restrained joint ductile iron water main, the replacement of twenty-four (24) 1” water services, three (3) 2” blowoff assemblies, one (1) fire hydrant assembly, appurtenances, and one (1) connection to the existing system. Existing 2” water main and appurtenances shall be abandoned in place. Restoration includes trench patching and curb and concrete replacement. In addition, all sewer manhole castings in the overlay area will be replaced.

Schedule G – 124/106 Water Main Replacement
Schedule G consists of the installation of approximately 675 linear feet of 8” restrained joint ductile iron water main, 105 linear feet of 6” restrained joint ductile iron water main, the replacement of sixteen (16) 1” water services, one (1) 2” blowoff assembly, one (1) fire hydrant assembly, appurtenances, and three (3) connection to the existing system. Existing AC water main and appurtenances shall be abandoned in place to the extent feasible. Restoration includes trench patching, asphalt grind and overlay, and curb and concrete replacement. In addition, all sewer manhole castings in overlay area will be replaced and three (3) ADA ramps will be installed.

Order of work and Restrictions:
- Schedule F – 120/80 Water Main Replacement shall be started first and completed before work can begin on another schedule, unless the Contractor has sufficient resources to adequately staff and complete multiple schedules of work simultaneously.
- Schedule A – 190/35 Water Main Replacement shall begin after October 1, 2025 and be completed by February 28, 2026.
- For the remaining schedules of work, the Contractor may choose order of work.
- Each schedule of work must be completed and restored to the satisfaction of the District before the Contractor will be allowed to commence work on the subsequent schedules.