Posted: 10/30/2025

Type of Addition: Addendum 2 QUESTIONS & ANSWERS

Overview: PIGEON POINT DRAINAGE STUDY
RFP 2026-105
ADDENDUM 2: QUESTIONS & ANSWERS


This Addendum No. 2 to RFP 2026-105 is issued by the City of Beaufort Finance Department. Except as modified by this addendum, all areas of the RFP not specifically mentioned in or affected by this addendum, shall remain unchanged.

1. Is a bid bond required for this project? On page 6, there is language about bid bond (10% of bid amount), and we have not in the past had to submit a bond before a proposal has been awarded. Proposals must include a bid bond or company check equal to 10% of the bid amount. Upon contract award, the bonds/checks will be returned to the non-awarded bidders.
2. Are cost proposals to be submitted separately in a sealed envelope and opened after the selection is made based upon qualifications and experience? Yes, respondents must submit Addendum 3-Exhibit A: Cost Form, separately. For hard copy submissions, cost forms must be submitted in a separate sealed envelope. For emailed submissions, cost forms must be sent in a separate email as an attachment.

3. Do the grantors allow for fee-based scoring? There are no grantor requirements that dis-allow fee-based scoring.

4. Are the federal grants still active? I heard that all federal funding has been pulled. The grant funding for this project is still active.
5. Regarding Scope of Services page 7, 1 Survey, is the survey to be on the ground or is this going to be more of an inventory-based GIS survey? The survey will require both a GIS data review and an on-the-ground field survey. While existing GIS resources should be reviewed and utilized where available, most drainage infrastructure within the project area has not yet been fully captured in the Cities or Counties GIS system. Therefore, field verification and detailed data collection will be necessary to accurately identify and document all existing stormwater features and conditions to support the hydraulic and hydrologic modeling effort.

6. Regarding Scope of Services page 7, 2 hydrologic and hydraulic system monitoring, are you looking for real time monitoring or just what's the model producing? The City is requesting hydrologic and hydraulic modeling outputs that reflect the conditions produced by the model. Real-time monitoring is not required for this study. The intent of this task is to analyze and document modeled system performance under existing and future conditions, using simulated rainfall and flow scenarios to identify areas of concern and support the development of recommended improvements.
7. For resiliency, are you looking for 25-, 50- or 100-year flood map? The City requests that the drainage study evaluate multiple storm events to fully assess system performance and resiliency. At a minimum, modeling and mapping should include the 25, 50, and 100-year storm events.

8. Regarding monitoring, it needs to be better defined. We need to know what your monitoring requirements are going to be. The monitoring requirement refers to hydrologic and hydraulic model-based analysis, not the installation of real-time monitoring equipment. The selected consultant will be responsible for using available rainfall, flow, and elevation data—supplemented by field observations where necessary—to calibrate and validate the model. The goal is to ensure that the model accurately represents existing drainage conditions and can reliably predict system performance during various design storm events.

9. Regarding the web application, are you looking for something that is hosted or a GIS layer for the City GIS site? We are looking for a GIS data layer(s) to identify all the infrastructure, as well as the inundation. Geo databased feature class or shaped file.
10. Do you have a web map of the area including watershed boundaries? See Exhibit A. Validation data.

11. Is there a DBE requirement for this project? There is no scoring for BDE. There is no specific Disadvantaged Business Enterprise (DBE) requirement for this project.
12. For reporting, are you looking for a master plan with standard drainage? Yes. The final report should be prepared in the format of a comprehensive drainage master plan. The report should include standard drainage study components such as an inventory of existing conditions, hydrologic and hydraulic modeling results, identification of deficiencies, and recommended improvements with conceptual layouts and cost estimates. The intent is to produce a master plan document that provides the City with a prioritized and implementable capital improvements plan to address current and future drainage and resiliency needs within the Pigeon Point area.

13. Please confirm whether the three reference projects must be the same projects used to demonstrate relevant experience, or if different projects may be provided for references. Experience with different projects is preferred.

14. Would the City consider allowing firms to include project experience completed within the past five (5) years, rather than three (3)? Although experience with similar projects within three years is preferred, projects within five years will be considered.

15. Conduct outfall and system inventory. Level of detail (e.g., pipes 15” dia. and larger, minimum contributing drainage area or another threshold)? All closed-pipe systems (12” in diameter and larger) within the project area, including material type, size, length, slope, and condition. All open-channel systems, such as roadside ditches, swales, outfalls, flow direction, and condition. Drainage structures (inlets, manholes, junction boxes, headwalls, etc.) with rim and inverted elevations, and condition. Outfalls and discharge points to receiving waters and controlling structures.


16. Water Quality Modeling. Targeted pollutants & type of modeling? The City does not require separate or advanced water quality modeling for this study beyond what is necessary to support the hydrologic and hydraulic modeling tasks identified in the Scope of Services. The focus of the study is on drainage capacity, flooding, and resiliency, rather than pollutant load analysis.
a. This clarification is consistent with the City’s response to Question 6, which specifies that real-time or field-based monitoring is not required and that the study will rely on model-based system analysis.


17. Model and design water quality retrofit projects. Green infrastructure and low-impact development post-construction best management practices? Yes. The City encourages the inclusion and evaluation of green infrastructure and low-impact development strategies as part of the recommended drainage and resiliency improvements. While the primary focus of the study is on flooding and capacity issues, the final report should also identify opportunities for water quality enhancement through feasible retrofit concepts. The intent is not to produce final construction design plans, but to identify and conceptually model retrofit opportunities that can be incorporated into the City’s long-term stormwater management and capital improvement planning. These concepts should align with state and federal post-construction BMP guidelines and may serve as candidates for future grant or BRIC funding applications.

18. Provide hydraulic and hydrologic modeling for floodplain and drainage studies? See #12
19. Urban drainage modeling (roadway drainage & nuisance flooding)?See #12
20. Coastal & riverine flood modeling, mapping & FEMA LOMCs? See #12
21. Climate change and sea-level rise modeling? See #32
22. Utilizing GIS within stormwater management program. See #32
23. Level of detail? Content? See #32
24. Software platform, data management, and maintenance protocols? See #32
25. Provide geospatial services related to stormwater management See #32
26. LiDAR & critical infrastructure / building FFE? See #32

27. HRC-LifeSIM modeling to estimate loss of function of critical infrastructure (bridges, power plants, transportation systems, utilities) as well as the population at risk from flooding. Only risk to population from flooding is required.

28. Scope of Services requires a drainage system field investigation and survey. Is there a known count of the number of structures and conveyances? Is there any current GIS data available? Is CCTV required? No, the City does not have a known count of the total number of drainage structures or conveyances within the Pigeon Point project area.
a. Yes, limited GIS data is available and may be provided to the selected consultant for reference. However, much of the existing drainage system has not yet been mapped or verified, and field investigation will be necessary to complete the inventory.
b. Closed-circuit television (CCTV) inspection is not required as part of this study. The City is seeking a condition and connectivity assessment sufficient to support hydrologic and hydraulic modeling. Field crews should collect visual condition observations during survey efforts and identify any areas that may warrant future CCTV inspection under a separate contract or maintenance program.

29. Is the 180 days following NTP inclusive of any potential holidays that are forthcoming? The 180 following the notice to proceed includes holidays. Are there any holiday work restrictions? There are no specific holiday work restrictions. However, contractor must notify and coordinate with the project manager of intended workdays during the holidays. Are there interim milestones or reporting deadlines expected during this period? All milestones and reporting requirements will be agreed upon with the project manager after the contract is awarded.
30. Is the vendor responsible for any potential traffic control needed? The vendor will be responsible for traffic control.
31. Under Goals and Expectations, there's a state participation goal referenced; however, the RFP notes "A specific expectation has not been set for this RFP". Is there a goal anticipated, or will this project be exempt? See question #11.
32. GIS Web Mapping Application Support: What platform does the City currently use? Is the City expecting a fully functional web-based GIS platform or just data layers compatible with an existing system? The city uses ARCGIS online. The city is expecting data layers that are compatible with the existing system.
33. Scope of Services Ambiguity: Task Definitions: The RFP lists seven tasks but provides minimal detail for each. For example:
34. What specific deliverables are expected under “Drainage System Field Investigation and Survey”? See #12.
35. What is the expected duration and methodology for “Hydrologic and Hydraulic System Monitoring”? See #7.
36. What assumptions should be used for “Future Conditions Modelling”? See #7.
37. Are there growth projections or climate scenarios to consider? These items have been addressed in previous responses, specifically Questions 5, 6, 8, and the Resiliency Question. Please refer to those clarifications for details regarding field investigation expectations, monitoring methodology, and future-condition modeling assumptions.

38. SAM Registration: The RFP states “proof of current System for Award Management (SAM) registration upon award.” Is it acceptable to submit proof of registration with the proposal, or is it only required post-award? Proposals may include proof of SAM registration. Registration must be current upon contract award and for the during the project.
All Bidders shall acknowledge receipt and acceptance of this addendum by signing in the space provided in the RFP Signature Page. Bids submitted without this Addendum may be considered non-responsive.

Documents:

• ADDENDUM_2_QUESTIONS_ANSWERS_RFP_2026_105_PIGEON_POINT_DRAINAGE_STUDY.pdf
• ADDENDUM_2_Exhibit_A_RFP_2026_105_PIGEON_POINT_DRAINAGE_STUDY.pdf

Posted: 11/5/2025

Type of Addition: Addendum 4 SUBJECT LINES FOR EMAIL SUBMISSIONS

Overview: This Addendum No. 4 to RFQ 2026-105 is issued by the City of Beaufort Finance Department. Except as modified by this addendum, all areas of the RFQ not specifically mentioned in or affected by this addendum, shall remain unchanged.

Please use the subject lines below for email submissions.

1. E-mail 1 - Subject line: RFQ 2026-105 Pigeon Point Drainage Study Proposal. Including attachment in portable document format (pdf).
2. E-mail 2 - Subject line: RFQ 2026-105 Pigeon Point Drainage Study Cost Form and Bid Bond, Including attachment in portable document format (pdf).
3. E-mail 3 - Subject line: RFQ 2026-105 Pigeon Point Drainage Study Submission Confirmation, without an attachment to advise that the submissions have been made.


All Bidders shall acknowledge receipt and acceptance of this addendum by signing in the space provided in the RFP Signature Page. Bids submitted without this Addendum may be considered non-responsive.

Documents:

• ADDENDUM_4_SUBJECT_LINES_FOR_EMAIL_SUBMISSIONS.pdf