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Home My WebLink AboutAddendum 3 - BID - 10144 Power Trail Crossing at Harmony Road Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road ADDENDUM NO. 3 Description of ITB 10144: Power Trail Crossing at Harmony Road ITB DUE DATE: 3:00 PM (Mountain Time) June 2, 2025 To all prospective Bidders under the Invitation to Bid documents described above, the following changes/additions are hereby made and detailed in the following sections of this addendum: EXHIBIT 1 - Questions and Answers EXHIBIT 2 - CTL Thompson Pavement Design Dated August 7, 2023 EXHIBIT 3 - CTL Thompson Ground Water Testing Dated July 13, 2023 EXHIBIT 4 - CTL Thompson Ground Water Testing Dated September 1, 2023 EXHIBIT 5 – Section 00485 Buy America Certification (ALL Bidders must complete and submit this document with their bid) EXHIBIT 6 - SUE Omission Justification Request Dated September 9, 2024 EXHIBIT 7 - FOR Hydraulic Design Report Dated August 28, 2024 EXHIBIT 8 - Plan Sheet Updates EXHIBIT 9 - Earthwork Tabulation (For Information Only) Please contact Adam Hill, Senior Buyer, at 970-221-6777 or adhill@fcgov.com with any questions regarding this addendum. RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT ENCLOSED WITH THE ITB STATING THAT THIS ADDENDUM HAS BEEN RECEIVED. nd Floor 970.221.6775 970.221.6707 fcgov.com/purchasing Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road Exhibit 1 – Questions and Answers 1. Question on the asphalt binder for Section A3. Will the 2” top layer be changed to PG 64-28 from PG 58-28 to match the Overlay Section A1 and A2 to be consist across the entire top lift surface? Response: Yes, the ﬁnal 2” lift of asphalt pavement should all use the same PG 64-28 binder to allow for uniformity and minimize joints. This will be revised in the plans and specs for consistency. 2. Conﬁrm that lagging which is to remain in place does not need to be treated. Response: Timber lagging does not need to be treated. 3. Conﬁrm that structural steel soldier piles do require painting per Section 509, if so conﬁrm two-coat system is required and which portion of soldier pile requires coating, i.e. does portion embedded in concrete need to be coated. What color coating is required if any. Response: Structural steel soldier piles do not require painting. 4. Conﬁrm that headed stud anchors installed on soldier piles do not need to be painted. Response: Headed stud anchors do not need to be painted. 5. Detail C on Sheet Number 91 reference ½” thick min. steel casing which is to be included in cost. Please conﬁrm this casing is temporary for drilled shaft stabilization only if required and that there is no requirement for any permanent casing. Response: Casing shall be permanent. 6. Per Standard Speciﬁcation Section 503.12 please conﬁrm that the soils above the bedrock contribute to the drilled shaft soldier pile wall bearing calculations (passive capacity) and that installation of temporary casing using uncontrolled in-situ slurries is not permitted. Response: Conﬁrmed, uncontrolled in-situ slurries are not permitted. Note that casings as shown are permanent. 7. Please provide bottom of drilled shaft elevation which is to be used for bidding purposes in order to arrive at bid quantities for 30” drilled shaft bid item. Response: Assumed bottom of drilled shaft elevations are included in Exhibit 8 included with this addendum. Note that the quantity for Item 503-00030 for Wall S1 should be 515 LF and the total quantity for this item should be 2,314 LF. 8. Note 1 on Sheet Number 90 states that “DRILLED SHAFTS SHALL EXTEND A MINIMUM OF 24’ BELOW DRILLED SHAFT TOP ELEVATION AND SHALL EXTEND INTO UNWEATHERED BEDROCK A MINIMUM OF 5’ FOR 30” DRILLED SHAFT.” Please provide bedrock elevation to be used for bidding purposes and also how cost and schedule will be adjusted if bedrock is deeper than anticipated. Deeper bedrock will require purchase of added beam length, ﬁeld splicing of soldier piles with full-penetration Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road welds or bolted splices (please provide splice detail), ﬁeld coating of piles if required, etc. This will require signiﬁcant down time in the ﬁeld and indeterminate added costs which cannot be recovered by the bid linear foot price. Response: Bedrock depths are provided in the geotechnical reports included in Addendum 2. 9. Can the shoring system installed in Area 1 within E Harmony Road remain abandoned in place or must it be removed. If removal is required, is it a complete removal or only partial, please specify required removal depth. Response: Shoring can be abandoned with approval from City representative. Portions of the shoring system that will not be in conﬂict with the permanent underpass or associated drainage, may remain in place. Shoring must be removed to a minimum of 2-feet below the ﬁnished roadway surface. 10. CDOT Form submittal - 1413 (Bidder's List) "No Longer Collected with Bid" from the CDOT website. Do we need to submit with our bid as per the Checklist? Response: Yes, submit as stated in the invitation to bid. 11. Sheet S23 - 30" Drilled Shaft Section - Note calls out 1/2" steel casing. Is this Temporary or permanent casing? Response: Casing shall be permanent. 12. Sheet S24 - Typical section - Soldier Pile - Note says Temporary Timber Lagging. Sheet 91 - Partial Elevation - Note says Lagging (Typ.) (Generically Shown) (To Remain In Place) Is timber lagging temporary or permanent? Response: Intent is for timber lagging to remain in place. Call-out on Sheet 91 will be revised. 13. Sheet S15 - The 6" Perf Underdrain (Special) detail states that pipe, geotextile, and ﬁlter material will not be paid for separately but included in the cost of ﬁlter material (class A). It appears the ﬁlter material (class A) bid item only accounts for the 1'-0" layer below the underpass (detail A/S3), and the 6" Perf Underdrain (Special) bid item should include the pipe, geotextile, and ﬁlter material. Is this accurate? Response: These assumptions are correct. Note 3 on the 6" Perforated Underdrain (Special) detail on Sheet S15 will be revised to indicate that this item includes the geotextile, ﬁlter material and the perforated pipe. 14. Project docs indicate a 250 calendar day project duration with a tentative start date of June 16, 2025 resulting in project complete in February 2026. Due to signiﬁcant temperature dependent activities (i.e. asphalt, pavement markings, etc..), is it possible to extend the project duration +/- 60 days to allow for completion in months where temperatures are warm enough of said activities? Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road Response: The contract duration will be revised to the following substantial completion and ﬁnal acceptance milestones. CONTRACT TIMES 1) The Work shall be Substantially Completed by the CONTRACTOR, as evidenced by the issuance of the Certiﬁcate of Substantial Completion (Section 00635), within two hundred ﬁfty (250) calendar days after the date of the Notice to Proceed. a) Scope of work to be delivered by substantial completion includes construction of the box culvert structure and reconstruction of Harmony Road. 2) The Work must be completed by the CONTRACTOR and ready for issuance of the Certiﬁcate of Final Acceptance and Completion (Section 00640) in accordance with Article 14 of the General Conditions within three hundred ﬁfty (350) calendar days after the date of the Notice to Proceed. 3) Liquidated Damages. OWNER and CONTRACTOR recognize that time is of the essence of this Agreement and that OWNER will suffer ﬁnancial loss if the Work is not completed within the times speciﬁed in paragraph 4.1 and 4.2 above, plus any extensions thereof allowed in accordance with Article 12 of the General Conditions. They also recognize the delays, expenses and difficulties involved in proving in a legal preceding the actual loss suffered by OWNER if the Work is not completed on time. Accordingly, instead of requiring any such proof, OWNER and CONTRACTOR agree that as Liquidated Damages for delay (but not as penalty) CONTRACTOR shall pay OWNER the amounts set forth hereafter. 1) Substantial Completion. Eight thousand, eight hundred dollars and zero cents ($8,800.00) for each calendar day or fraction thereof after two hundred ﬁfty (250) calendar days from the Notice to Proceed until the Work is Substantially Complete. 2) Final Payment and Acceptance: Eight thousand, eight hundred dollars and zero cents ($8,800.00) for each calendar day or fraction thereof after three hundred ﬁfty (350) calendar days from the Notice to Proceed until the Work is ready for Final Payment and Acceptance. 15. The phasing plans included within the traffic control drawings only account for box construction and some adjacent roadway work (Harmony RD HCL approximate STA 108+00 to 112+00). The work areas outside of the box phase construction zones are shown to have active detoured traffic ﬂows leaving no space to complete the remaining roadway work. What are the traffic control requirements and phasing expectations for completing the remaining roadway work from STA to 100+00 to 108+00 and STA 112+00 to 114+20 including Innovation Dr. tie-in? Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road Response: For the roadway reconstruction portion of the Harmony Road segment within the Power Trail Underpass project area, the City of Fort Collins Work Area Traffic Control (WATC) guidelines would require the following: • A minimum of two travel lanes in each direction should be maintained at all times during primary construction activities to preserve consistent traffic ﬂow on this major arterial. • During paving operations, a minimum of one travel lane in each direction may be permitted. This reduced conﬁguration should not exceed one week in duration and will require close coordination with Traffic Operations. • Access to all multimodal facilities (including sidewalks, bike lanes, and transit stops) must be maintained or safely detoured in compliance with ADA requirements and City standards. The City also recognizes there may be instances where work areas require more impactful traffic control. These situations will be reviewed on a case-by-case basis and should be minimized to the greatest extent possible. Maintaining traffic ﬂow should remain a primary priority throughout the project. A detailed and phased Traffic Control Plan (TCP) will need to be submitted as part of the WATC permit process for review and approval prior to implementation. 16. What are the minimum pavement section requirements for the detour pavement? Response: The CDOT 2025 Pavement Design Manual (13.2.8 Detour Pavements) states that the detour pavement thickness at a minimum shall be half the design thickness. Based on the 8" permanent pavement section, detour pavement shall be a minimum of 4-inches thick. Base material shall match the proposed pavement section (14" thick) or match the existing pavement section (Thickness is unknown). 17. Are there any bore logs or other documents that show existing asphalt thickness? Response: See Exhibit 2 for relevant pavement design information. 18. Are there any tabulation of earthwork showing ﬂow of dirt and an earthwork quantity balance for the unclassiﬁed excavation (CIP) bid item? If so, please provide. Response: We have a very basic tabulation of earthwork in our SAQ spreadsheet. See Exhibit 9 included with this addendum. 19. Utility General Note #7 (sheet 23) states all utility relocations and/or utility lowerings within the ROW are required to be backﬁlled with ﬂowﬁll, and detail D-1B showing ﬂowﬁll backﬁll for stormwater within a street has been provided. What utility lines are required to be backﬁlled with ﬂowﬁll? Water? Storm? Response: Per Larimer County Urban Area Street Standards Section 22.2.3 ﬂowable ﬁll is required as utility trench backﬁll in locations underneath existing or proposed pavement unless otherwise directed by Local Entity Engineer. Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road 20. The plans mention a geotechnical investigation report was performed by CTL Thompson. Can this be provided? Response: See addendum #2, Exhibits 2 & 3. 21. Note #2 on sheet 71 states all drainage structures shall be waterproof up to an elevation of 4961. Is this waterprooﬁng incidental to the speciﬁc structures and what material is speciﬁed? Response: Yes, waterprooﬁng is incidental to the speciﬁc structures. No speciﬁc material is required, but shall be submitted for review and approval. 22. The Traffic Control Sections plan sheet 164 shows a Shoring (Area 2) to facilitate manhole installation on phase 2. Is this shoring for the pump station, and can a separate bid item be provided? Response: Yes, that is the intent for this item. A separate item for Shoring (Area 2) will be added for this item and will be shown in in plan view on the Construction Traffic Control Phase 2 plan sheets (Sheet 2 of 3). See Exhibit 8 included with this addendum. 23. Given the substantial amount of groundwater dewatering anticipated for this project, has the City of Fort Collins identiﬁed discharge location(s)? There are limited areas within the site boundaries including limited access to existing storm systems. Will it be acceptable to discharge groundwater into the drainage ditch on the south and north sides of the site as shown in the roadway plans? Response: Groundwater can be expected to be encountered at depths approximately below 15-feet based on readings taken in Exhibit 4. This high groundwater level appears to be seasonal based on the other readings taken throughout the year in Exhibit 4. Groundwater can be discharged into stormwater conveyance and must follow permitting requirements from CDPHE. Please see the following link for CDPHE permitting information. Dewatering General Permit Program | Colorado Department of Public Health and Environment 24. There does not appear to be any information related to the testing or management of groundwater. Are contractors to assume for the purpose of the bid that groundwater encountered during this project is not contaminated and/or require any type of special treatment? Response: Groundwater was tested for gasoline and diesel range petroleum constituents, resulting in less than 0.5 mg/L of each, see Exhibit 3 for further details. This testing does not guarantee additional testing and/or management is not required based on CDPHE permitting requirements. Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road For further information surrounding dewatering and permitting please reach out to Jesse Schlam, Senior Environmental Regulatory Specialist at the City of Fort Collins. 970-218-2932 or jschlam@fcgov.com 25. Sheet LS12, detail four Landscape Boulder (Special) (1-1/2 Ton) (1 Ton) does indicate the type of boulder (i.e. sandstone, granite, color). Please provide this information. Response: As indicated in Section 213 of the Project Speciﬁcations, the landscape boulders are intended to be Colorado Buff Sandstone to match the existing boulders in the median. 26. Sheet 24, Fort Collins General Note #7 states it is the responsibility of the contractor to relocate all existing utilities that conﬂict with the proposed improvements shown on these plans. It is atypical for a contractor to relocate privately owned utilities, or City owned utilities unless speciﬁcally called out in the plans. Please conﬁrm that this note only applies to utilities that are speciﬁcally called out as to be relocated by contractor and tabulated within the bid schedule. Response: Correct, this note only applies to utilities that are speciﬁcally called out as to be relocated by Contractor and have been tabulated within the bid schedule. See the Project Speciﬁcations Exhibit B – Utilities section for additional information. 27. Existing, abandoned utility lines appear to be in conﬂict with excavation and improvement limits including an abandoned telephone line as shown in the utility plans. Is the contractor to remove any abandoned lines that conﬂict with excavation or protect in place? If to be removed, please provide a line item to clarify where these items are to be bid. Response: A quantity for the removal of abandoned Asbestos Concrete pipe is included in the current quantities. The abandoned portion of the relocated Xcel gas line shall be removed by utility owner with coordination. All other abandoned utilities within the excavation are incidental to excavation line items. 28. Please conﬁrm all utilities shown in the utility plans to be relocated by others includes demolition of the existing lines and the installation of the new lines. Are we to assume all utilities to be removed/relocated by others will occur prior to construction (unless speciﬁcally stated otherwise)? Response: Yes, please refer to the Project Special Provisions, page 96 for speciﬁcs surrounding Utility relocations and coordination. At this time, the Xcel Energy 6-inch gas line identiﬁed on the Utility plans has been relocated. The Fort Collins Loveland Water District Water line is to be relocated by the contractor and the Lumen ﬁber lines will be relocated by Lumen contractors while the southern portion of the underpass is being constructed and the roadway is shifted under traffic control conditions. 29. The utility plans call for the existing ﬁber & telephone lines to be relocated into roadway during construction (by others). A note also calls for the contractor to support the relocated utility during construction as required by the utility owner. Please provide Addendum # 3 10144 ITB Power Trail Crossing at Harmony Road additional information as to when this will occur during construction. For example, is the intent for the lines to be relocated while the full depth roadway is demolished? If so, what is the relocation schedule related to start date and duration? Response: Correct, the intent of this note is for the contractor to coordinate schedule of this relocation while the full depth roadway is demolished and traffic is shifted. Schedule will depend on general contractor phasing and schedule. 30. The nearest hydrant for construction water appears to be at the corner of Harmony and Innovation Drive (near Grainger). Will this hydrant be available for construction use/water? If not, please verify if the City has located a hydrant intended for construction use. Response: Yes, there is also a hydrant located at approximately (40.523116, - 105.046866). Either hydrant is available for construction use. Please contact Jack Wallace in the City of Fort Collins Water Meter Division at 970-221-6234 or jwallace@fcgov.com for more information regarding temporary hydrant meters. 31. Given the shortened holiday week and quick timeframe to bid this project, can the due date please be extended 1-2 weeks? Response: The bid opening has been extended to June 2, 2025 at 3:00 PM MST. 32. Sheet number 71, longitudinal section, keynote 1 depicts an existing duct bank with a 6’ dimension to the back of the Wall S2. Multiple plan sheets call for protecting the duct bank in place. Can a detail be provided of the existing duct bank related to dimensions, any bedding/backﬁll, etc.? Actual excavation limits will be closer to the duct bank than depicted by the 6’ dimension and it is difficult to determine the existing condition/limits based on the provided information. Response: This 6-foot dimension was obtained from hydrovac trenching along the duct bank to establish the approximate edge of the duct bank. The required offset from the duct bank is intended to allow for excavation of the duct bank if needed in the future by the City Light and Power. Supervised excavation in this 6-foot area can occur during construction. It will be the contractors responsibility to protect the duct bank during construction. See Exhibits 6 and 8 for additional information. 33. For dewatering what is the point of discharge for the pumped water? Response: Pumped water can be discharged into City stormwater conveyance pending CDPHE permit. 34. How is the over excavation going to be paid? Response: Any over excavation will be incidental to other excavation line items. 35. Regarding Item 206-01781 for Shoring, what exactly is the Engineer calling for here, is it only related to the pipe excavations? Response: Shoring (Area 1) as shown on Sheets 164, 166 & 169 will be utilized to facilitate phased construction of the underpass while maintaining traffic.