DOT262216-2217-SUB_INVEST_ad1.pdf
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- Attached to
- Subsurface Investigation Services
- Solicitation number
- DOT262216-2217-SUB_INVEST
- Issued by
- Delaware
About this file
This is an Addendum to a Request for Proposals issued by the Delaware Department of Transportation (DelDOT) for subsurface investigation services on a statewide basis. The solicitation seeks proposals from qualified firms to provide subsurface investigation including sample collection, visual examination, documentation, and testing services across Delaware in varied terrain conditions including riverbeds, canals, marshes, and bedrock. DelDOT anticipates awarding up to two Indefinite-Delivery/Indefinite-Quantity agreements with a three-year initial term and two possible one-year extensions. The revised proposal due date, established through Addendum No. 1, is Thursday, September 10, 2026, at 2:00 p.m. local time, with submissions required via the Bonfire Procurement Portal. No formal bidder's conference or mandatory site visit is specified. Questions must be submitted ten business days prior to the proposal due date, with DelDOT responses posted five business days before the deadline.
Pricing is structured on a cost-per-unit-of-work basis under Federal Acquisition Regulations, with payroll burden and overhead calculated on audited direct salary costs only. The maximum agreement value is $3 million per contract over the term. Funding is federal, derived from CFDA #20.205 (Federal Highway Administration), and governed by 2 CFR Part 200 and 23 CFR Part 172. No Disadvantaged Business Enterprise participation goal applies due to current certification suspensions under interim federal rules published by the U.S. Department of Transportation. Evaluation criteria are weighted as follows: Vendor Pricing (40%), Experience of Contractor (20%), Skill and Experience of Employees (20%), Equipment List and Access (10%), and Completeness of Sample Boring Log Forms (10%). Awardees must hold Delaware Well Driller's Licenses and maintain commercial general liability and errors and omissions insurance at $1 million minimum coverage.
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Other files
| File | Type | Posted |
|---|---|---|
| DOT262216-2217-SUB_INVEST_ad3.pdf | ||
| DOT262216-2217-SUB_INVEST_rfp.pdf | ||
| DOT262216-2217-SUB_INVEST_ad2.pdf |
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Text version
S H A N T E A . H A S T I N G S s e c r e t a r y
VIA BONFIRE POSTING
August 26, 2026
Agreement No. 2216-2217F
Federal Aid Project No. Fed CFDA# 20.205
SUBSURFACE INVESTIGATION SERVICES
Ladies and Gentlemen:
Enclosed is Addendum No. 1 for the referenced contract consisting of the following:
1. Revised Due date on bid proposal cover page.
2. Revised Procurement schedule on page 3.
Please note the revisions listed above and attached, and submit a proposal based on this information.
Sincerely, ~signature on file~ Julia Vander Schel Consultant Control Coordinator
(302) 760-2031
Delaware Department of Transportation
REQUEST FOR PROPOSALS
PROFESSIONAL SERVICES
RFP Number: 2216-2217F
SUBSURFACE INVESTIGATION SERVICES
Submission Due Date/Time: Thursday, September 1024, 2026, no later than 2:00 P.M. Local Time Three-year term with two possible one-year extensions
Agreement Type: IDIQ Up to two agreements may be awarded from this solicitation
Funding: Federal; Fed CFDA# 20.205 The anticipated method of payment is cost per unit of work
29 Del.C. §6981, 2 CFR part 200, 23 CFR part 172
DIGITAL ACCESSIBILITY NOTICE
The Delaware Department of Transportation (“DelDOT”) is committed to ensuring that its digital services, content, and documents are accessible to all users and is actively working to comply with applicable federal and state accessibility requirements. DelDOT continues to make improvements over time, with current efforts focused on programs, applications, content, and documents that are actively in use and available to the public.
Due to the nature and complexity of certain materials, including construction plans, technical drawings, historical documents, maps, and other graphic-intensive files, some documents may not currently be fully digitally accessible or compliant with current accessibility standards. In some cases, these documents are provided for historical, reference, informational, or procurement purposes only.
If you require an accessible version of a document or need assistance accessing any content, please contact DelDOT at (302) 760-2031 or DOT.Profservices@delaware.gov, and reasonable efforts will be made to provide the information in an accessible format upon request. DelDOT appreciates your patience and understanding as accessibility improvements continue to be implemented.
PROJECT INFORMATION
This Request for Proposal (“RFP”) issued by the Delaware Department of Transportation (“DelDOT”) is for the purpose of acquiring Proposals from interested firms (“Firms”) to provide subsurface investigation including obtaining samples, performing visual examination, documentation of observed samples, and testing services as needed.
PROJECT DESCRIPTION
General Description: Location and Work Area Conditions The work shall be performed in locations Statewide and in any terrain. The work may be located within riverbeds, canals, fat clay areas, marshes, bedrock, weathered rock, sandy areas, etc. The anticipated equipment required to perform work under this Agreement may include: barge mounted equipment -
ADDENDUM 1
August 26, 2026 mailto:DOT.Profservices@delaware.gov
QUESTIONS
Questions must be submitted before the due date identified in the Procurement Schedule for this RFP. All inquiries must be submitted in the Q/A section of the project listing in the Bonfire Procurement Portal.
DelDOT’s response to questions will be posted, according to the procurement schedule, under the project listing in Bonfire and to the State of Delaware Bid Solicitation Directory Website:
http://www.bids.delaware.gov/.
Direct contact with State of Delaware employees other than DelDOT’s Contract Administration staff regarding this RFP is expressly prohibited without prior consent. Firms directly contacting State of Delaware employees risk elimination of their proposal from further consideration. Exceptions exist only for organizations currently doing business in the State who require contact in the normal course of doing that business.
DISADVANTAGED BUSINESS ENTERPRISE - TEMPORARY SUSPENSION OF DBE
CONTRACT GOAL
Pursuant to the Interim Final Rule (“IFR”) published by the United States Department of Transportation (“U.S. DOT”) on September 30, 2025, and its immediate impact on the certification status of Disadvantaged Business Enterprises (“DBEs”) previously certified by the Department, no DBE participation goal has been established for this solicitation.
At this time, DelDOT has no currently certified DBEs in its directory. Consequently, it is not possible to establish or enforce a meaningful DBE contract goal for this procurement.
DelDOT is actively conducting the DBE recertification process required by the IFR. Upon completion of recertifications, or in the event of subsequent amendments to the IFR, court orders, or further U.S. DOT guidance that restores or modifies DBE certification capacity, DelDOT reserves the right to establish, reinstate, or revise a DBE participation goal for this solicitation and any resulting contract in accordance with 49 CFR Part 26 and all applicable federal requirements.
Any future establishment, reinstatement, or modification of a DBE goal will be accomplished through a formal amendment to this solicitation or to the resulting contract. Proposers and the selected Consultant will be notified in writing of any such amendment and will be required to comply with the revised DBE provisions.
Until a DBE goal is formally established or reinstated by written amendment, no DBE participation goal applies to this solicitation or the resulting contract, and submission of good-faith efforts documentation is not required.
PROCUREMENT SCHEDULE
Action Item Date Time
Deadline for Questions to ensure response: Ten (10) business days prior to the proposal due date 2:00 P.M. Local Time
Final Response to Questions posted by: Five (5) business days prior to the proposal due date 2:00 P.M. Local Time
Proposals Due no later than:* Thursday, September 1024, 2026 2:00 P.M. Local Time
NOTE: Only asterisk (*) marked date changes will be communicated (via posted Addenda).
ADDENDUM 1
August 26 2026 https://deldot.bonfirehub.com/portal/ http://www.bids.delaware.gov/
File details come from the government source that posted it. Updated .