| CC-0049-16 ADD No. 1 | ADDENDUM No. 1 - Flags & Grave Markers | 01/21/2016 | Closed |
| 15013 ADD No. 1 | ADDENDUM No. 1 - Great Swamp Exhibit Hall at Somerset County Environmental Education Center, 190 Lord Stirling Road, Backing Ridge, NJ | 02/25/2016 | Closed |
| PCC-9017-16 ADD No.1 | ADDENDUM No. 1 - John Deere 4052R Compact Utility Tractor or Equivalent | 01/20/2016 | Closed |
| PCC-0024-19R ADDENDUM NO. 1 | ADDENDUM NO. 1 LEASE GASOLINE POWERED GOLF CARS FOR A THREE-YEAR TERM WITH A TWO ONE-YEAR OPTIONS TO EXTEND FOR THE SOMERSET COUNTY PARK COMMISSION – GOLF DIVISION | 11/07/2019 | Closed |
| 16002 ADD No. 1 | ADDENDUM No. 1 - Maintenance Contract for Repairs to Various Building Structures Located in Somerset County, NJ | 02/24/2016 | Closed |
| CC-0034-15-R ADD No.1 | ADDENDUM No. 1 - Motor Vehicle Preventative Maintenance | 01/14/2016 | Closed |
| CC-0102-16 ADD No.1 | ADDENDUM No. 1 - Open End Contract for Subsurface Utility Investigation | 01/29/2016 | Closed |
| JCC-0019-16 ADD No.1 | ADDENDUM No. 1 - Open End Co-Operative Pricing Bid Janitorial Supplies for County Jail and All County Divisions | 02/03/2016 | Awarded |
| CC-9023-17 Addendum No.1 | Addendum No. 1 2017 Medium Duty Bus with Freightliner or Equivalent Chassis Up To Eight (8) Wheelchair Plus up to Four (4) Ambulatory | 01/31/2017 | Closed |
| 20005 ADDENDUM NO. 1 | ADDENDUM NO. 1 2020 ROAD RESURFACING AND ADA COMPLIANCE PROGRAM, VARIOUS ROUTES, VARIOUS LOCATIONS, SOMERSET COUNTY, NEW JERSEY | 08/25/2020 | Closed |
| 20006 ADDENDUM NO. 1 | ADDENDUM NO. 1 2020 SHARED SERVICES RESURFACING PROGRAM, VARIOUS ROUTES, VARIOUS LOCATIONS, SOMERSET COUNTY, NEW JERSEY | 08/26/2020 | Closed |
| 21002 ADDENDUM NO. 1 | ADDENDUM NO. 1 2021 ROAD RESURFACING AND ADA COMPLIANCE PROGRAM, VARIOUS ROUTES, VARIOUS LOCATIONS, SOMERSET COUNTY, NEW JERSEY | 07/14/2021 | Closed |
| 21003 ADDENDUM NO. 1 | ADDENDUM NO. 1 2021 SHARED SERVICES RESURFACING PROGRAM | 07/13/2021 | Closed |
| 22003 ADDENDUM NO. 1 | ADDENDUM NO. 1 2022 ROAD RESURFACING AND ADA COMPLIANCE PROGRAM, VARIOUS ROUTES, VARIOUS LOCATIONS, SOMERSET COUNTY, NEW JERSEY | 05/17/2023 | Closed |
| CC-9053-22 ADDENDUM NO. 1 | ADDENDUM NO. 1 4 WHEEL DRIVE REFRIGERATED/HEATED FOOD DELIVERY VEHICLE FOR SOMERSET COUNTY DIVISION OF TRANSPORTATION | 01/21/2022 | Closed |
| 19017 ADDENDUM NO. 1 | ADDENDUM NO. 1 AMWELL ROAD RECONSTRUCTION, CR 514, FROM WORTMAN STREET TO ELIZABETH AVENUE, FRANKLIN TOWNSHIP, SOMERSET COUNTY, NEW JERSEY | 01/07/2020 | Closed |
| 20001 ADDENDUM NO. 1 | ADDENDUM NO. 1 ASBESTOS ABATEMENT AND DEMOLITION OF 490 LONG HILL ROAD, ILLSBOROUGH TOWNSHIP, SOMERSET COUNTY, NEW JERSEY | 02/27/2020 | Closed |
| 23006 ADDENDUM NO. 1 | ADDENDUM NO. 1 BOILER REPLACEMENT AT 40 NORTH BRIDGE STREET BUILDING, 40 NORTH BRIDGE STREET, SOMERVILLE, NJ 08876 | 10/26/2023 | Closed |
| 23007 ADDENDUM NO. 1 | ADDENDUM NO. 1 CHILLER REPLACEMENT AT 40 NORTH BRIDGE STREET BUILDING, 40 NORTH BRIDGE STREET, SOMERVILLE, NJ 08876 | 10/05/2023 | Closed |
| CC-0109-22 ADDENDUM NO. 1 | Addendum No. 1 Consumer Electronics Recycling/Disposal Program | 12/02/2021 | Closed |
