Skip to main content Skip to footer

Notice: We’re performing scheduled updates to our Laserfiche system on Friday, June 5, 2026. During this time, Laserfiche services will be temporarily unavailable. We appreciate your patience and encourage you to check back on Monday when access is restored. If you need immediate assistance, please contact us at [email protected].

Standard Notes, Submittal Standards, Checklists & Process Requirements

All electronic survey information submitted to the City of Meridian shall be delivered in NAD 83 Idaho State Plane west zone coordinates modified to the Ada County Local GIS Coordinates (Horizontal), and NAVD 88 (vertical), also known as SRID 102459. Both Horizontal and Vertical information must be accounted for.

Standard Notes

  1. All construction work shall be done in accordance with the current version of the Idaho Standards for Public Works Construction (ISPWC), the City of Meridian Supplemental Specifications to the ISPWC (and any addenda), Meridian Design Standards, the requirements of the Ada County Highway District (ACHD), and/or the requirements of the Idaho Transportation Department (ITD). The more stringent of any of these standards shall be the controlling standards or specifications.
  2. The Contractor shall have a copy of the latest City of Meridian Supplemental Specifications to the ISPWC and Drawings on site or readily accessible at all times during construction (available on the website). Failure to have access to a current copy of the City of Meridian Supplemental Specifications to the ISPWC on-site could be grounds for a stop-work order until the situation is resolved.
  3. The Contractor shall have plans stamped “Approved for Construction” by the City of Meridian on site at all times.
  4. All Contractors, Subcontractors, and Utility Contractors shall attend a pre-construction conference prior to start of work.
  5. Contractors shall notify the appropriate agency when materials are on site or inspection of the work is required. No work may begin on any project without twenty-four (24) hour prior notice.
  6. Contactor shall notify the Public Works Inspector 48 hours prior to the required testing. The Contractor may not open or close water valves.
  7. All material furnished on, or for, the project must meet the minimum requirements of the approving agencies. At the request of the approving agency or the Design Engineer, Contractors shall furnish proof that all materials installed on this project meet the specification requirements set forth in General Construction Note No. 1.
  8. Work subject to approval by any governmental agency must be approved prior to:
    1. backfilling trenches for pipe
    2. placing of aggregate base
    3. placing of concrete
    4. placing of asphalt paving
  9. Inspection, approval, and final acceptance of all water and sewer construction shall be by the City of Meridian Public Works Department, and their decision shall be final. Such inspections shall not relieve the contractor from the responsibility of performing the work in an acceptable manner in accordance with the approved construction plans and the standards identified in general note 1.
  10. Any deviation from the approved plans and specifications must have the applicable agency’s approval in writing prior to construction.
  11. Prior to beginning installation of streetlights, the electrical contractor shall obtain an Electrical Permit from the Building Division of the Meridian Public Works Department. Any deviation in street light locations from the approved plans must be approved in writing by the City Engineer.

  1. Construction of the water system shall conform to the standards in the Idaho Rules for Public Drinking Water Systems (IDAPA 58.01.08) as well as the standards and specifications referred to in General Construction Note No. 1.
  2. The horizontal separation of potable water mains and non-potable water mains (sanitary sewer, storm drain, and irrigation) shall be a minimum of ten (10) feet. Where it is necessary for a potable water main and non-potable water main to cross with less than eighteen (18) inches of vertical separation, the crossing shall be constructed in accordance with Section 542.07 of the Idaho Rules for Public Drinking Water Systems (IDAPA 58.01.08) and Section 430.02 of the Wastewater Rules (IDAPA 58.01.16).
  3. The horizontal separation of non-potable services and potable water services or potable water mains shall be a minimum of six (6) feet.
  4. Place water service lines in a two (2) inch diameter pipe sleeve wherever the service line crosses a storm water treatment facility (i.e., seepage beds, drainage swales).
  5. The Contractor shall be responsible for providing continuous water service to all existing water users affected by construction. If water service must be interrupted, the contractor shall coordinate with the Public Works Inspector.
  6. Trench dewatering may be required to complete construction activities. Contractor is required to obtain necessary permits and approvals prior to starting dewatering.

  1. Construction of the sewer system shall conform to the standards in the Wastewater Rules (IDAPA 58.01.16) as well as the standards and specifications referred to in General Construction Note No. 1.
  2. The horizontal separation of potable water mains and non-potable water mains (sanitary sewer, storm drain, and irrigation) shall be a minimum of ten (10) feet. Where it is necessary for a potable water main and non-potable water main to cross with less than eighteen (18) inches of vertical separation, the crossing shall be constructed in accordance with Section 542.07 of the Idaho Rules for Public Drinking Water Systems (IDAPA 58.01.08) and Section 430.02 of the Wastewater Rules (IDAPA 58.01.16).
  3. The horizontal separation of non-potable services and potable water services or potable water mains shall be a minimum of six (6) feet. 
  4. Place sewer service lines in a six (6) inch diameter water class pipe sleeve wherever the service line crosses a storm water treatment facility (i.e., seepage beds, drainage swales).
  5. Contractor to provide positive drainage away from manhole lids.
  6. Trench dewatering may be required to complete construction activities. Contractor is required to obtain necessary permits and approvals prior to starting dewatering.

  1. All Contractors working within the public road right-of-way are required to secure a right-of-way construction permit from ACHD or ITD at least twenty-four (24) hours prior to any construction.
  2. ACHD or ITD will inspect all work within the public rights-of-way to include utility trenches above the pipe zone.

  1. The pressurized irrigation system must be built to the standards of the irrigation district in which it is being constructed.
  2. Install a reduced-pressure backflow preventer in any connection between the potable water system and the pressure irrigation system. The device must be approved by the Idaho Department of Environmental Quality (DEQ) and the City of Meridian Water Department.

For Commercial Subdivisions or Commercial projects that have Public Reuse Main or Services.

  1. For any drainage facilities within a public right-of-way, ACHD or ITD shall be responsible for inspection. For any private drainage facilities, the project engineer or architect shall be responsible for inspection and certification of drainage facilities; however, any roof drainage and piping to the drainage facilities will be inspected by the Meridian plumbing official under the appropriate permit.

  1. Contractor shall enter relevant information from all equipment with asset equipment ID numbers into the asset management spreadsheet provided by the City.
    Information to be entered includes asset ID number, manufacturer name, model number, serial number, manufactured date, installed date, cost, and additional information specific to the equipment type as described on the spreadsheet.
  2. It is the Contractor's responsibility to ensure that the spreadsheet is filled out completely and accurately.  It is the Contractor's responsibility to ensure that required asset management information is collected prior to installation; the type and nature of installation could limit or prevent collecting such information.
  3. If equipment is added to the project not previously assigned an asset equipment ID number on the design plans, then it is the Contractor's responsibility to identify such equipment and ensure that it is assigned an ID number in coordination with the City and entered into the spreadsheet.
  4. The completed spreadsheet must be submitted with Contractor's application requesting payment on that specific equipment.  Payment will not be made until the asset management spreadsheet is received and verified to be correct by the City Project Manager.
  5. Contractor to meet with Asset Management on-site when all assets have been installed. Asset Management will label and verify with Contractor all assets were installed per plan.
  6. All work and materials required to complete the asset management requirements shall be considered incidental to the project, and no separate payment shall be made by the City.

  1. All street light construction shall be done in accordance with the current version of the ISPWC, the Meridian Supplemental Specifications to the ISPWC, and the National Electric Code.
  2. A street lighting electrical permit shall be opened prior to starting work. Use the online Citizen Portalto open a permit and request inspections.
  3. Installation will require inspections for the concrete base reinforcing, bedding, backfill, and for the pole and associated wiring.
  4. Street light bases shall be located 10’ min. from trees, 5’ min. from fire hydrants, and 2’ min. from water meters.
  5. Keep accurate notes of conduit, junction box locations. Attach a redlined as-built drawing of this plan sheet to the street lighting electrical permit, or submit a hard copy to the Meridian Public Works Department prior to requesting final inspection.
  6. Contact the City Transportation and Utility Coordinator 208-898–5500 for questions regarding Utility Conflicts, or to access locked meter pedestals.

QR Code

The City of Meridian requires this QR Code on all project plans. The QR Code leads to the City of Meridian's Specifications and Standards page