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Unofficial Notice of Invitation to Bid (NIB)

Imperial County is seeking bids from qualified and interested contractors for the following project titled, ON-CALL, AS NEEDED, PLAN CHECKING SERVICES, identified under Solicitation ID: -. Work is to be performed near 155 S 11th St, El Centro, CA 92243, USA in Imperial County.

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General Project Description

The Imperial County Department of Public Works (ICDPW) is seeking proposals from qualified professionals to provide on-call plan checking services on an as-needed, intermittent basis. The selected firm(s) will assist the County with various assignments for local, state, or federally funded projects during peak workloads, staffing shortages, or when expedited support is required. The scope includes plan checking for private development projects, street improvements, onsite grading plans, drainage, utility plans (water, sewer, underground), traffic control, construction detours, striping, signing, bridge and retaining wall structures (not under building permit purview), and consistency with planned improvements and County master/specific plans. The work also involves reviewing plan check submittal items and reports such as structural section calculations, hydrology/hydraulic reports, street layout/design, storm water best management practices, water/sewer pressure/capacity calculations, structure calculations, traffic reports/studies, and quantity/cost estimates. Consultants will also be tasked with developing and recommending improvements to existing Engineering Plan Check Criteria and Checklists.

General Bid Items

  • Quantity: -  Unit: Per Each  Work Item: Grading & Drainage Letter Review & Approval
  • Quantity: -  Unit: Per Sheet  Work Item: Grading & Drainage Plans, Parcel size less than or equal to 1 acre
  • Quantity: -  Unit: Per Sheet  Work Item: Grading & Drainage Plans, Parcel size greater than 1 acre but less than or equal to 5 acres
  • Quantity: -  Unit: Per Sheet  Work Item: Grading & Drainage Plans, Parcel size greater than 5 acres but less than or equal to 10 acres
  • Quantity: -  Unit: Per Sheet  Work Item: Grading & Drainage Plans, Parcel size greater than 10 acres but less than or equal to 20 acres
  • Quantity: -  Unit: Per Sheet  Work Item: Grading & Drainage Plans, Parcel size greater than 20 acres but not major subdivision
  • Quantity: -  Unit: Per Sheet  Work Item: Major Subdivisions Mass or Rough Grading Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Major Subdivision Precise or Fine Grading Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Additional per sheet charge on each subsequent plan submittal over three (3) for plan check
  • Quantity: -  Unit: Times Those Shown Above  Work Item: Fast Track performance fees for Grading & Drainage Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Street Improvement Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Sewer Improvement Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Storm Drain Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Potable Water Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Recycled Water Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Traffic Signage & Striping Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Temporary Traffic Control/Detour Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Combined Street & Utility (any/all kinds) Plans
  • Quantity: -  Unit: Per Sheet  Work Item: Additional per sheet charge on each subsequent plan submittal over three (3) for plan check
  • Quantity: -  Unit: Times Those Shown Above  Work Item: Fast Track performance fees for Road, Street & Utility Improvement Plans
  • Quantity: -  Unit: Per Task Order  Work Item: Traffic Studies Review (provisional for lump sum fixed fee cost, for a separate task order)

NAICS Classification

NAICS 541330 – Engineering Services (Providing professional civil engineering services, including plan checking, design review, calculations, and technical support for public works infrastructure such as roads, drainage, utilities, and traffic studies.)

Records and Due Date

This bid opportunity was entered into BidAmerica on November 27, 2025, and was last updated on November 26, 2025. All bids and/or proposals are due on January 19, 2026.

Contractors may log in or create a free BidAmerica account to view full project documents, plans, specifications, addenda, submission requirements, and more project details issued by Imperial County.

Legal Disclaimer

All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Imperial County. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Imperial County prior to bidding.

ON-CALL, AS NEEDED, PLAN CHECKING SERVICES - Bid Opportunity | BidAmerica