On-Call Geotechnical Engineering Services

The City of Modesto is seeking up to three qualified firms for on-call geotechnical engineering services supporting capital improvement and infrastructure projects under three-year agreements with two one-year extension options.

City of Modesto > Utilities Department


General
Open
2026-002
Sep 22, 2026 05:00 PM
Aug 17, 2026 03:09 PM
$300,000.00
3 years base + 2 × 1 year options
Request for Quote/Qualifications (RFQ)
Local
Ask AI about this solicitation
Original Solicitation Links
Contact
scastillo@modestogov.com
+12093412916
Description

The City of Modesto Utilities Department is establishing an on-call list of up to three geotechnical engineering firms to support future Capital Improvement Program and other public infrastructure projects. Services will be provided on an as-needed, task-order basis and may include subsurface investigations, soil and materials testing, geotechnical studies and reports, design recommendations, pavement and foundation evaluations, utility and pipeline support, construction observation and testing, seismic and geologic hazard evaluations, peer review, potholing, sludge-depth surveys, groundwater and slope monitoring, emergency response, and related specialty services. Selected firms must demonstrate relevant experience, qualifications, resources, capacity, and responsiveness. Services must be performed under the responsible charge of appropriately licensed California professional engineers. Agreements are expected not to exceed $100,000 per year per consultant, with a maximum not-to-exceed amount of $300,000 per consultant agreement over the initial three-year term.

Classification Codes
NAICS541330Engineering Services
PSCB519Geotechnical Studies
Smart Codes
geotechnical engineeringsoil testing servicespotholing services
Specifications
Service Only
Timeline
Aug 17, 2026-RFQ Posted
Sep 10, 2026-Requests for Clarifications, Corrections, or Modifications Due
Sep 22, 2026-Statement of Qualifications Due
Oct 1, 2026-Committee Review and Consultant Interviews, if Needed
Dec 1, 2026-Council Approval and Notice to Proceed
Requirements
Required
  • Commercial General Liability — $1,000,000.00
  • Automobile Liability — $1,000,000.00
  • Workers' Compensation
  • Employer's Liability — $1,000,000.00
  • Professional Liability — $2,000,000.00
Scored
  • Minimum 5 references
  • Within the last 5 years
  • Client point of contact required for each reference
Location
Local Preference:Local Preference
'Engineering Services' Opportunities
Mechanical, Electrical, and Structural Engineering Services

The Universite du Quebec a Montreal is seeking mechanical, electrical, and structural engineering se...

Due in 9 daysUniversité du Québec à Montréal
On-Demand Professional Engineering Services for Buildings in Bas-Saint-Laurent and Gaspésie–Îles-de-la-Madeleine

The Société québécoise des infrastructures is seeking a single provider for on-demand professional e...

Due in 6 daysQuebec > Société du Centre des congrès de Québec
Comprehensive ITS, Electrical and Traffic Engineering Services

The Maryland Transportation Authority is seeking professional services for comprehensive Intelligent...

Due in about 1 monthMaryland Transportation Authority
Echos-de-la-Foret Elementary School Architecture Services

The Centre de services scolaire de la Cote-du-Sud is seeking professional architectural services for...

Due in 5 daysCentre de services scolaire de la Côte-du-Sud
Structural and Civil Engineering Services for Construction Projects

Sante Quebec Monteregie-Centre is seeking one or two firms to provide structural and building civil ...

Due in 12 daysQuebec > CISSS de la Montérégie-Centre
2027 Special Projects Engineering Services

The Township of Hamilton is seeking qualified engineers or engineering firms to provide professional...

Due in about 1 monthTownship of Hamilton > Division of Budget and Purchasing
Structural Design and Management Support Services Pool

The Utah Department of Transportation is seeking interim submissions for its 2024–2028 pool of struc...

Due in 19 daysState of Utah > Department of Transportation
On-Call Engineering Services

The City of Corvallis is seeking qualifications-based proposals for continuing, on-call professional...

Due in 19 daysCity of Corvallis
General Engineering Services

Greensville County and the Greensville County Water and Sewer Authority are seeking two engineering ...

Due in 3 daysGreensville County
San Antonio District PS&E Engineering Services

The Texas Department of Transportation is seeking professional engineering services for PS&E project...

Due in 19 daysState of Texas > Texas Department of Transportation
Consulting Engineering Services

The Village of Tahsis is seeking a qualified consulting engineering firm for a range of engineering ...

Due in 12 daysBritish Columbia > Corporation of the Village of Sayward
Professional Mechanical and Electrical Engineering Services — Lots 1 and 2

Sante Quebec, acting through CISSS de la Monteregie-Centre, is seeking a firm for professional mecha...

Due in 2 daysQuebec > Santé Québec > Montérégie-Centre
Consulting Engineering Services

The Village of Tahsis is seeking a qualified consulting engineering firm to provide a range of engin...

Due in 13 daysBritish Columbia > Village of Tahsis
General Engineering and Technical Services

The City of Rock Island is requesting statements of qualifications from Washington-licensed engineer...

Due in 9 daysCity of Rock Island
On-Call Civil Engineering Services

The Arizona Department of Administration is seeking on-call civil engineering services under solicit...

Due in 13 daysState of Arizona > Department of Administration
On-Call Professional Engineering Consulting Services

The Town of Mount Pleasant is seeking consultants to provide on-call professional engineering servic...

Due in about 1 monthTown of Mount Pleasant > Procurement Division
Wastewater Treatment Facility Building Design and Construction Supervision

The Municipality of Îles-de-la-Madeleine is seeking professional services to prepare plans and speci...

Due in 9 daysMunicipalite des Iles-de-la-Madeleine
Building 3 First-Floor Rehabilitation Design Services

New York State OPWDD's Broome DDSO is requesting quotes for design services and construction documen...

Due in 18 daysNew York > Office for People With Developmental Disabilities > Broome DDSO
North Almond Drive Engineering Services

The City of Simpsonville is requesting qualifications and proposals from professional firms and indi...

Due in 6 daysCity of Simpsonville
Soil and Materials Engineering Services for Hospital Expansion

The Société québécoise des infrastructures is seeking professional soil and materials engineering se...

Due in 23 daysGovernment of Canada > Société québécoise des infrastructures > Direction des services professionnels et des modes alternatifs
Village Engineering Services

The Village of Sugar Grove is seeking qualifications from firms to provide village engineering servi...

Due in 13 daysVillage of Sugar Grove
Continuing Professional Engineering Services

The City of Kissimmee is seeking one or more qualified engineering firms for continuing, as-needed p...

Due in 16 daysCity of Kissimmee > Purchasing Department
Architectural and Engineering Services

The Housing Authority of the City of Camden is seeking architectural and engineering services under ...

Due in 11 daysHousing Authority of the City of Camden
On-Call Electrical Engineering Services

Vallejo Wastewater is requesting proposals for on-call electrical engineering services.

Due in 24 daysVallejo Flood and Wastewater District
Structural and Civil Engineering Services for Research Facility

Université Laval is seeking professional structural and civil engineering services for the design do...

Due in 17 daysUniversité Laval
Opportunities Near Modesto, California
Boat Portage Services

The California Department of Water Resources is seeking three years of boat portage services, includ...

Due in 5 daysCalifornia > Department of Water Resources > Division of Operations and Maintenance
Self-Locking Flare Nuts, NSN 5310-01-051-0826

The Defense Logistics Agency is requesting 3,365 self-locking flare nuts under NSN 5310-01-051-0826 ...

Due in 5 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA AVIATION (ASC COMMODITIES DIVISION)
Safety Relief Valves

The Defense Logistics Agency is requesting a quote for three safety relief valves, NSN 4820-01-277-9...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)
Safety Relief Valves

The Defense Logistics Agency is requesting 25 safety relief valves under NSN 4820-01-625-2953 for de...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)
Shaft, Bolt, Breech Assemblies

The Defense Logistics Agency is seeking quotes for 762 shaft, bolt, breech assemblies under a Servic...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLY CHAIN)
Hazardous Spill Clean-Up Kits

The Defense Logistics Agency is requesting quotes for 185 hazardous spill clean-up kits under a tota...

Due in 4 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA AVIATION (ASC SUPPLIER OPER AE AND AF DIV)
Mossdale Tract Area Urban Flood Risk Reduction Project

The San Joaquin Area Flood Control Agency is seeking a contractor for the Mossdale Tract Area Urban ...

San Joaquin Area Flood Control Agency
Electrohydraulic Drive Units

The Defense Logistics Agency is requesting a quote for 24 electrohydraulic drive units, NSN 1005-01-...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LSO COMBAT VEHICLES AND ARMAMENT)
Southwest Pipeline Pool 5 Replacement Project

The Oakdale Irrigation District is seeking a contractor to replace approximately 1,646 linear feet o...

Oakdale Irrigation District
Direct-Current Motors

The Defense Logistics Agency is requesting electronic quotes for eight direct-current motors under N...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME SUPPLY CHAIN)
Gate Valves, NSN 4820-01-270-4247

The Defense Logistics Agency is requesting a quote for two gate valves, NSN 4820-01-270-4247, for de...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)
400-Bed Emergency Shelter Operations

The City of Modesto and County of Stanislaus are seeking qualified organizations to operate a 400-be...

Due in 13 daysCity of Modesto > Community and Economic Development Department
Regulating Valves, NSN 4820-01-311-0992

The Defense Logistics Agency is requesting 27 regulating valves under NSN 4820-01-311-0992 for deliv...

Due in 2 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (FLUID HANDLING DIVISION)
Air Ejector Assemblies

The Defense Logistics Agency is requesting two air ejector assemblies under a total small business s...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME SUPPLY CHAIN)
Fire-Extinguishing Foam Liquid Procurement

The Defense Logistics Agency is seeking three containers of fire-extinguishing foam liquid, NSN 4210...

Due in 6 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [CLASS IV])
Metal Plates, NSN 9515-01-350-5319

The Defense Logistics Agency is requesting four metal plates under NSN 9515-01-350-5319 for delivery...

Due in 2 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [METALS])
Independent Audit Services (Rescinded)

Modesto City Schools is seeking independent audit services, but RFP 19-4699 has been rescinded.

Modesto City Schools
Air-Conditioning Filter Elements

The Defense Logistics Agency is requesting 55 filter elements for air-conditioning equipment under N...

Due in 2 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [LGTNG II])
Flow-Control Valves, NSN 4820-01-503-1685

The Defense Logistics Agency is requesting 12 flow-control valves identified by NSN 4820-01-503-1685...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)
Seal Assembly, Shaft, SP

The Defense Logistics Agency is requesting two seal assembly, shaft, SP units under NSN 4320-01-290-...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME SUPPLY CHAIN)
Seal Replacement Parts Kits

The Defense Logistics Agency is requesting three parts kits for seal replacement under NSN 5330-01-5...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLIER OPNS VEHICLE SPT)
Piston, Gun Gas Cylinder Units

The Defense Logistics Agency is requesting a quote for 114 piston, gun gas cylinder units under NSN ...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLY CHAIN)
State Route 120 Roadway Excavation, Asphalt, and Lighting Modifications

The California Department of Transportation is seeking bids for roadway excavation, hot-mix asphalt ...

Due in 11 daysCalifornia > Department of Transportation
Servo-Synchro Test Sets

The Defense Logistics Agency is requesting 30 TEST SET, SERVO-SYNCHRO units under a total small busi...

Due in 9 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME SUPPLY CHAIN)