HEHO RFP Q and A 12.09.19_0004.xlsx
XLSX spreadsheet 29 KB Posted
- Solicitation number
- 140P2019R0098
About this file
This pre-solicitation notice describes a forthcoming solicitation for construction services. The National Park Service will issue a solicitation on or around November 4, 2019 seeking proposals to restore and stabilize Hoover Creek at the Herbert Hoover National Historic Site in West Branch, Iowa. Key aspects of the project include channel grading, replacement of the Downey Street Bridge, and construction of an off-line detention basin. Additional elements involve relocating utilities and preserving and reconstructing a historic wall. The project is designed to LEED certification standards. The contract will be a single-award fixed-price agreement. The estimated price range is $5-10 million and period of performance is January 2020 through November 2022. Small businesses, including veteran, disadvantaged, and women-owned small businesses, are encouraged to compete.
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Sheet1 updated 12.09.2019 Question and Answer Spreadsheet
140P2019R0098 HEHO 160186
| Question No. | Question | Response | |
| 1 | Will native plant plugs be installed in the riprap? | Riprap voids filled with native soils will be seeded as follows: Drawing sheets L01/L02 (Landscaping Plan) and C33 (Channel Restoration Typical Sections) state that native grass planting begins at base flow water surface elevations and extends up 5 horizontal feet upslope. Specification section 31 37 00 - Stone Revetment (Riprap) gives requirements for filling soil riprap and requires the final surface to be hand raked to receive planting or seeding. Native grass seeding instructions are provided in specification section 32 92 00 (Seeding, Sodding, and Landscaping). Erosion control blankets shown on drawing sheet C46 will be installed after channel has been graded, seeded, and mulched. | Answered in Amendment No. 2 |
| 2 | Is there a required route for hauling of removed trees? | 01 74 19 (Construction Waste Management and Disposal) paragraph requires land clearing debris including trees to be diverted from a landfill. Chipped debris can be used on site for mulch or erosion control. Paragraph 3.5 of 01 74 19 requires chipping brush, branches, and trees on site. Any material that cannot be used on site will be legally disposed off-site according to the approved Waste Management Plan. Park roads may be used for transport if spillage is minimized and debris cleaned promptly. | Answered in Amendment No. 2 |
| 3 | Can the retaining wall be removed ahead of the allowed time for bridge removal? | The existing Downey Street Bridge is to remain open until September 14, 2020. The special construction requirements in 01 11 00 state "Contractor to install the protective retaining wall, and protect in place the historic wall, prior to commencing Downey Street Bridge demolition." The demolition and reconstruction of the retaining wall can be performed any time if stream flows allow access to the wall and if the following requirements are met: Do not close or obstruct walkways or corridors unless otherwise permitted by the Contracting Officer (01 11 00); Appropriate access and safety measures shall be used (01 13 00); A demolition plan that includes minimizing vibration, is required 30 days prior to commencing work (01 39 95); approval of mock-up panel is required before starting construction of the wall (04 42 03). | Answered in Amendment No. 2 |
| 4 | What are the criteria to qualify as a small business with the National Park Service? | Check SBA.gov size standards website to determine if you qualify and then if you do you can self certify. | Answered in Amendment No. 4 |
| 5 | As for references; How many do you require and how similar do the referenced projects have to be compared to the this one. For example, we have 2 projects to use as a reference that are very similar in size, scope and complexity to this one. The rest of our projects are smaller and have only one similar task such as riprap bank stabilization or sewer and water installation or seeding and tree planting. | In Section "L" of the Solicitation under Factor 2 - Experience addresses the specific experience elements for up to 5 projects. | Answered in Amendment No. 4 |
| 6 | If we can start cutting down trees before the March 31st deadline. Would it be acceptable to cut them all down in all areas before March 31st and then remove the fallen trunks and stumps in the following months? | The trees shall be cut down by March 31, 2020. Removal of the trees (from the National Historic site) shall be accomplished by April 17, 2020, to allow for resumption of normal park operations. Stumps may be removed later, as part of the general clearing of the remaining vegetation within the construction limits. Activities related to the removal of trees and stumps shall be conducted within the designated construction limits and adjacent roadways. A few additional access corridors for tree removal only, may be considered on a case by case by the Contracting Officer. All access corridors shall be protected from damage. Any inadvertent damage shall be promptly repaired/restored. | Answered in Amendment No. 4 |
| 7 | On pages C24 and C25 of the plans, there are several Storm manholes that do not have elevations listed. Is there a table or page that I’m missing with that information? | Proposed Manhole Elevations are as follows: |
Proposed Flowline at FES daylight point - As annotated on Sheets C24/25 Existing Inflow - Match Existing pipe elevation Rim elevations:
Sheet C24:
Sta. 0+49.96, Proposed RIM elevation = 715.11 Sta. 1+86.61, Proposed RIM elevation = 713.14 Sta. 4+84.46, Proposed RIM elevation = 711.05 Sta. 6+08.27, Proposed RIM elevation = 710.87 Sta. 7+29.98, Proposed RIM elevation = 710.50 Sta. 7+69.25, Proposed RIM elevation = 710.84 Sta. 8+08.22, Proposed RIM elevation = 710.30 Sta. 9+02.04, Proposed RIM elevation = 710.64 Sheet C25:
Sta. 13+33.66, Proposed RIM elevation = 709.04 Sta. 15+62.15, Proposed RIM elevation =709.80
Detail 1, Sheet C26:
| Delete text "See Pipe Profiles" from Dimension from top of existing inflow pipe to top of MH lid. | Answered in Amendment No. 4 | ||
| 8 | Also, Section 33 of the specifications states that RCP joints are to conform to ASTM C361 which is a confined o-ring spec. Will you accept single offset profile gaskets conforming to ASTM C443? | Yes; revise Specification 33 40 00 as follows: |
Section 1.2 - A - 2: add g. C443 - Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets
| Section 2.1 - B - : change "ASTM C361" to be "ASTM C361 or ASTM C443." | Answered in Amendment No. 4 | |||
| 9 | The requirements call for a Microsoft Project Gantt Style Schedule to be submitted with the proposal. Is it acceptable to submit a Primavera P6 Gantt Style Schedule? | Yes | Answered in Amendment No. 4 | |
| 10 | Section L requests (3) bound hard copies and (10) electronic copy for Volume I, then (1) hard copy and (1) electronic copy for Volume II. However, the SF-1442 requests (4) copies. Am I supposed to put (4) copies of the SF-1442 in the single copy of Volume II? | Three (3) hardcopies and 1 flash drive with both technical and business are required, for a total of four (4) copies. | Answered in Amendment No. 4 | |
| 11 | Will fillable forms be made available for the documents in RFP Volumes I and II? Specifically the project experience questionnaire, the small business subcontracting plan and past performance questionnaire. | No, fillable forms are not generally provided. The subcontracting plan calculation sheet and the Cost Price Schedule are provided as fillable forms, along with the Price Schedule in the solicitation. | Answered in Amendment No. 4 | |
| 12 | Would it be acceptable to submit a prior reference form in a different template? | Yes | Answered in Amendment No. 4 | |
| 13 | How many copies of the Amendment need to be submitted? | Submit 3 signed copies for each Amendment. Submit with each proposal package and the flash drive. | Answered in Amendment No. 4 | |
| 14 | Does Section K need to be submitted if we are approved in SAM? | No | Answered in Amendment No. 4 | |
| 15 | The contract documents call for trees to be cut between October 1 and March 31. At the pre-bid meeting we were told that the approximately 100 trees identified on the plans need to be removed by March 31. Do the trees need to be cut OR cut and removed by March 31? | The trees shall be cut down by March 31, 2020. Removal of the trees (from the National Historic site) shall be accomplished by April 17, 2020, to allow for resumption of normal park operations. Stumps may be removed later, as part of the general clearing of the remaining vegetation within the construction limits. Activities related to the removal of trees and stumps shall be conducted within the designated construction limits and adjacent roadways. A few additional access corridors for tree removal only, may be considered on a case by case by the Contracting Officer. All access corridors shall be protected from damage. Any inadvertent damage shall be promptly repaired/restored. | Answered in Amendment No. 4 | |
| 16 | 1. 01-31-00; 1.8, Environmental Coordination: Can this person perform “other” duties? Is this the same role as specification 01-57-00; 1.4. C: Pollution Prevention and Erosion Control Manager? | One of the responsibilities of the Contractor's Environmental Manager (01 31 00 1.8) is the implementation of the Storm water Pollution Prevention Plan, so the Pollution Prevention and Erosion Control Manager (01 57 23 1.4 C) role may be performed by the same person. This person may perform other duties. | Answered in Amendment No. 4 | |
| 17 | 01-50-00; 2.1.C: Portable Chain Link Fencing & 3.4.F, Site Enclosure Fence, is this the materials required for “construction fence” as labeled and shown on plan sheets C08-C09? | Yes. Public Safety and maintaining construction limits are very important, therefore Portable Chain Link Fencing is required. Please note, the designation "Portable" indicates no digging or poured concrete allowed. Utilize mobile bases only (galvanized with sandbags as necessary, concrete in wheel rim, etc.). | Answered in Amendment No. 4 | |
| 18 | 31-11-60; 3.1.B: If reseeding is needed due to impacted herbicide treatment, will the reseed be paid for? | As noted in 01 27 00, all revegetation work will be included in contract line item 2 and paid at the contract lump sum price. This includes the cost of cover crop seeding and any reseeding due to impact from herbicide application. Note that the seed establishment and mowing specifications in 32 92 00 paragraph 3.5 further discuss management of weeds within the stand of planted species. | Answered in Amendment No. 4 | |
| 19 | 31-11-60A: Is there any requirements for “pest management” ? If so, to what extent and what products? | According to NPS policy, herbicides are considered pesticides and subject to the same review and approval procedures. For this project, pesticide use will be limited to the control of noxious weeds, especially the undesirable plant species listed in paragraph 2.2 of 31-11-60. As discussed in 32 92 00 paragraph 3.5, less than 10 percent of the seeded area shall contain noxious weeds. Preferred herbicide products for weed eradication are discussed in 31 11 60 paragraph 2.1. | Answered in Amendment No. 4 | |
| 20 | Plan sheet C13 Typical 1; Is there any aggregates to be used? If so, does it need to be removed? | No aggregate is intended for use. However, if the contractor encounters "soft spots/pumping" that will impede hauling operations, the contractor may request from the COR permission to place a temporary rock base/mat that will be removed prior to restoration. | Answered in Amendment No. 4 | |
| 21 | Plan sheet C18: in the upper left hand corner of the sheet it shows a “new 12’ pipe rail gate & maintenance access to pond” are there any details on these? | No detail required. The intent is a typical "farm style" pipe rail gate mounted between 2 posts. | Answered in Amendment No. 4 | |
| 22 | On the haul roads “Thompson farm access” and “Downey St”, is there any aggregate surfacing anticipated after use? | Yes. Sheets C14-17 include haul road surfacing requirements. Please refer to hatching and legend on these sheets as well as Spec 32 15 40, 2.1A & 3.2A. | Answered in Amendment No. 4 | |
| 23 | In the soils report by Terracon, they discuss chemical soil stabilizations in both subgrades, and berm fill locations. Is this an item that will be addressed on an as needed basis, as well as compensated if needed? | Chemical soil stabilization is not expected to be required for this project. If chemical stabilization is deemed to be necessary by the Contracting Officer, the scope and price for the work will be addressed in a contract modification. | Answered in Amendment No. 4 | |
| 24 | When can we expect the pre-bid meeting notes, and sign in sheet? | These were included in Amendment #2 which was posted on 11/27/2019. | Answered in Amendment No. 4 | |
| 25 | Due to very slow response from small business solicitations, we request a bid date extension to 12-20-19. | Bid Amendment #3 that was issued on 12/02/2019 changed the question cut-off date to 12/05/2019 and it changed the proposal due date to 12/19/2019. | Answered in Amendment No. 3 | |
| 26 | On Sheet S14 wall No. 1 is shown as a concrete wall setting on Helical piles. However on sheet C28 the same location calls for a sheet pile wall. Please clarify which type of wall is required in this location or if both are required and offset from one another. Please note, vibrations exerted on the historic wall are critical and driving sheet pile in this close of proximity would cause substantial vibration. | The C28 labeling is incorrect, Wall No. 1 is Concrete/Helical Pile per "S" sheets. Edit Sheet C28 Plan view labels as follows: |
Edit "Begin Protective Sheet Pile Wall" to be "Begin Protective Wall - See Structural Sheets"
| Edit "End Protective Sheet Pile Wall" to be "End Protective Wall - See Structural Sheets" | Answered in Amendment No. 4 | |||
| 27 | Per the specifications, it says “03 31 31-14 / 3.5 / C. Utilize an approved self-propelled and mechanically operated bridge finishing machine to properly strike off concrete to the required grade & elevation.” Is this something that will absolutely be necessary & you are going to stick to? | Yes, an approved self propelled mechanically operated finishing machine is required. | Answered in Amendment No. 4 | |
| 28 | We respectfully request Volume 1, factor 4, Past Performance Questionnaire submittal requirements be revised to allow submittal of the PPQ with he proposal. This would prevent problems with completion and submission of the forms in a timely manner. | Request approved. You may submit these with your proposal. | Answered in Amendment No. 4 | |
| 29 | Section 32 92 00, paragraph 3.5, E, 3a: The requirement for native grasses to have a healthy, uniform, close stand with coverage exceeding 80 percent per 10 sq ft and have no bare spots exceeding 5”x5” over the approximately 22 acres designated for planting appears to be unrealistic. We recommend the requirement for no bare spots exceeding 5”x5” be deleted with the 80 percent requirement remaining. | The requirement for no bare spots exceeding 5 in x 5in is hereby deleted. Requirements will remain for 80 percent healthy, uniform stand of native vegetation per 10 SQFT and no more than 10 percent coverage of noxious weeds per 10 SQFT. | Answered in Amendment No. 4 | |
| 30 | Section 32 92 00, paragraph 3.7, C: Please clarify if the two year maintenance requirement begins at the establishment of the initial planting of native grasses or begins anew after replanting (example following flooding of the stream channel and/or basin, requiring reseeding). | Paragraph 3.7A states to begin maintenance of planted areas immediately after each portion is planted and that the warranty period shall be 2 years from the date of sucessful germination. Reseeding/replanting may be required if plantings are impacted by a subsequent flooding event. However, such an event would not reset the two year warranty period. | Answered in Amendment No. 4 | |
| 31 | On page C-25 the pipe is called out as SDR-35, but the note at the bottom calls out for N-12 fittings. Please clarify materials needed. | The proposed pipe is 12” PVC-SDR35. Please change KEY NOTE 1 to read: “All Fittings to be Nyloplast PVC Fittings, or approved equal.” | Answered in Amendment No. 4 | |
| 32 | What unit pricing is to be applied should adjustments to any drilled pier be required (Section 316330-1.1. B and 3.1.D.1.c)? | This project solicitation is on a lump-sum fixed fee basis. If significant adjustments are required by the CO due to field conditions encountered, the adjustments will be covered by a Contract Modification. | Answered in Amendment No. 4 | |
| 33 | Will the Contracting Officer (CO) be on-site full-time during the drilled shaft installation to determine and authorize immediate adjustments to a drilled shaft if bearing strata are encountered at different elevations or are judged to be of a different quality (Section 316330-1.1. B)? | The National Park Service will hire a Construction Management Representative (CMR) to be onsite during construction. The project's design firm will also be engaged during the construction period to provide site visits and advising. With adequate planning and notification by the Contractor, the Contractor can expect that in conjunction with the Contractor's Quality Control/materials testing subcontractor, prompt direction from the CO will be given to the Contractor should drilled shaft adjustments be needed. | Answered in Amendment No. 4 | |
| 34 | What does the “G.” represent in Section 316330-1.3.A “Drilled Shaft Installation Plan. G.”? | The "G" designation indicates government approval of the submittal is required. | Answered in Amendment No. 4 | |
| 35 | What does the “G.” represent in Section 316330-1.3.B “Polymer Slurry Manufacturer. G.”? | The "G" designation indicates government approval of the submittal is required. | Answered in Amendment No. 4 | |
| 36 | Should the slurry not have a temperature of 40 DEGF or higher for performing all tests, will slurry be authorized for use when the slurry temperature is less than 40 DEGF (Section 316330-2.1.b.2)? | Slurry will not be authorized when the slurry temperature is less than 40 DEGF. | Answered in Amendment No. 4 | |
| 37 | Specify the reinforcing lap length required above the top of drilled shaft elevation (Section 316330-3.1.A..1.f “The top elevation of the shaft may have a tolerance of + 1 IN or – 3 IN from the plan top of shaft elevation. Ensure sufficient reinforcement bar splice length for splices above the shaft.”)? | The combined length of drilled shafts + bar extension above the top of drilled shafts as detailed on the plans is less than 60-feet. Therefore longitudinal reinforcing steel in the drilled shafts can be supplied within the standard manufactured length of 60-foot long reinforcing bars. Therefore no lap splices are needed or allowed. | Answered in Amendment No. 4 | |
| 38 | Specify the drill shaft reinforcing lap length required (Section 316330-3.1.B.2.i) should the drilled shaft reinforcing steel cage need to be extended to reach the installed bottom of drilled shaft elevation. | See response to Question 37 regarding lap splices.. Note, as per 316330-3.1.H.3 that reinforcing cage shall not be supported on the bottom of the shaft. | Answered in Amendment No. 4 | |
| 39 | Is a demonstration shaft required for this project (Section 316330-3.1.K)? | It is anticipated that the requirement for a Demonstration Shaft will be deleted, once the Contractor has satisfied the provisions under 31 63 30 3.1 K. 6 | Answered in Amendment No. 4 | |
| 40 | Is a test shaft required for this project (Section 316330-3.1.L)? | A test shaft is only required if noted in the contract documents. Contract Documents do not require a test shaft. | Answered in Amendment No. 4 | |
| 41 | Is a Load Cell Test required for this project (Section 316330-3.1.L.1.b, 3.1.B.2.a.6, and 3.1.B.2.n)? | A load cell test is only required if noted in the contract documents. Contract Documents do not require a test shaft. | Answered in Amendment No. 4 | |
| 42 | Is a confirmation boring required in this project when a Test Shaft is not required (Section 316330-3.1.L.1.a.1 and 316330-3.1.B.2.a.4)? | A confirmation boring is only required if a test shaft is required. Since a test shaft is not required in the Contract Documents , a confirmation boring is not required. | Answered in Amendment No. 4 | |
| 43 | Is Cross hole Sonic Log (CSL) Testing required for this project (Section 316330-3.1.J, 3.1.B.2.a.5, and 3.1.b.2.m)? | CSL testing is not shown in the Contract Documents and is therefore not required. | Answered in Amendment No. 4 | |
| 44 | Please verify the requirement and constructability for “groove sidewalls of drilled shaft within the rock socket to produce channels with approximate dimensions of 2 IN deep by 3 IN high at intervals of 1 FT” is required as an integral part of the drilled shaft design (Section 316330-3.1.B.2.o and 3.1.E) {as in the over 25 years of being involved with deep foundations and drilled shaft construction this company has not performed grooving, nor has this company been made aware that any other companies have performed grooving, as we know of no tooling to perform this operation.} | Grooved sidewalls are intended for drilled shafts obtaining all or part of their capacity from side friction. The shafts for this project derive their load completely from end bearing in limestone. Therefore side grooving of the rock socket is not required. | Answered in Amendment No. 4 | |
| 45 | What is the scouring requirement/definition in Section 316330-3.1.B.2.b and 3.1.B.2.o? | Scouring requirements relate to side grooving of the rock socket. See response to Question 44. | Answered in Amendment No. 4 | |
| 46 | Please verify the requirement and constructability of scouring (Section 316330-3.1.B.2.b and 3.1.B.2.o)? | Scouring requirements relate to side grooving of the rock socket. See response to Question 44. | Answered in Amendment No. 4 | |
| 47 | Verify the requirement to place concrete the same day the drilled shaft excavation is started (Section 316330-3.1.I.1.a) and comment on adjustment to this requirement, as obstructions, extension of design bottom elevation to suitable bearing material, weather conditions, etc. may prevent completing the drilled shaft the same day the drilled shaft is started and placement of drilled shaft concrete in the same day the drilled shaft excavation is started. {In a situation where the drilled shaft cannot be completed the same day in which the drilled shaft was started, the drilled shaft is stabilized overnight and resumed the following day.) | Concrete shall be placed on the same day as the drilled shaft excavation is started as per the Contract Documents. | Answered in Amendment No. 4 | |
| 48 | There is mention of using threaded connections between the extension sections on the helical piers. We are not familiar with that type of connection being used for helicals. Is there a particular manufacturer who does that? Is a bolted hub connection acceptable for the installation? | A bolted hub connection for extension sections of helical anchors is acceptable. | Answered in Amendment No. 4 | |
| 49 | Are there any know obstructions at any drilled shaft location (Section 316330-3.1.D.1.b …”no payment will be made for removing obstructions”)? | The NPS is not aware of obstructions, other than items shown on the plans and any existing obstructions that are visible at the surface. | Answered in Amendment No. 4 | |
| 50 | Can you confirm where the helical piles are located? It appears the only helical piles are on the south side of the bridge, on the east side, just west of the existing limestone retaining wall that is to remain. | The helical piles are for Protection Wall No. 1 as shown on sheet S13. | Answered in Amendment No. 4 | |
| 51 | Can you confirm the location of the limestone retaining wall to remain. | The location of the limestone retaining wall that is to remain is as shown in the Wall No. 2 plan and profile on sheet S13 (station 10+11.18 to station 10+50). | Answered in Amendment No. 4 | |
| 52 | How many weeks of construction will be in vicinity of historic monuments for vibration monitoring/daily crack monitor observations/etc.? | The duration of construction activities requiring vibration monitoring is dependent on the contractor's specific construction activities and schedule. | Answered in Amendment No. 4 | |
| 53 | Does vibration monitoring subcontractor/consultant need preconstruction testing to determine means and methods? | A pre-construction condition survey and plan as identified in specification 01 35 95 is required. Pre-construction testing to determine means and methods may be performed to assist the Contractor in selecting means and methods. | Answered in Amendment No. 4 | |
| 54 | Is the 0.2 inch/second maximum really the limit? This is a very low number, above and beyond industry standard of 2.0 inch/second | The Journal of Preservation technology 46:2-3 2015, Damage Threshold Table 2 indicates that Minor Damage (hairline cracking in masonry) does not typically occur below 4-5 in/sec, and that Minor Damage Never occurs at < 1.0 in/sec. Therefore a revised standard of 2.0 inch/second will apply for this project. | Answered in Amendment No. 4 | |
| 55 | The specification references the contractor determining the “safe” vibration limit. Can “safe” be defined by others for all contractors to assume as basis of bid? | Prospective Contractors may be planning to use specific construction means & methods. These means & methods shall not cause vibrations that damage existing Park resources. | Answered in Amendment No. 4 | |
| 56 | Is it possible to drill an adjacent shaft the day after pouring if we have a 50% strength break prior to beginning rather than waiting a full 24 hours before drilling an adjacent shaft. |
Longshore, Jason James: Longshore, Jason James:
| See Section 316330- 3.1.D.1.f for requirements of shaft excavation in proximity to an adjacent shaft. | Answered in Amendment No. 4 | |||
| 57 | Is it acceptable to use a cleanout “muck” bucket to clean out a slurry shaft rather than an airlift. | Final cleaning of the bottom of the shaft shall be cleaned by an air lift as per Section 316330-3.1.F.4 | Answered in Amendment No. 4 | |
| 58 | Please clarify the amount of needed articulating concrete block. | Change the Section B label on sheet C18 to read:“INTAKE WEIR | ||
| 780 +/- SY TOTAL (INCLUDING TOE-IN,); 655 +/- SY EXPOSED SURFACE ARTICULATING CONCRETE BLOCK” | Answered in Amendment No. 4 | |||
| 59 | 01-50-00; Temporary Facilities: Can a temporary electrical power source be utilized from an existing light pole or similar? | Temporary power is probably available via the local utility, Alliant Energy. | ||
| Temporary potable water and sewer is probably available via the City of West Branch. | Answered in Amendment No. 4 | |||
| 60 | 1. 31-10-00; Site Clearing: 3.2.C.3.a Confirm that “clearing & grubbing” materials can be disposed within the “berms” . | As stated in the specification, Select woody debris (stumps, roots, branches) may be permitted to be placed in Berm (non-structural) fill areas at the CO's discretion. This is likely to be permitted by the CO if a detailed, reasonable request is made by the Contractor, that ensures that the particle size/volume of the debris is reasonable reduced (e.g. by grinding, chipping, etc), and that the resulting debris is reasonably spread and mixed with the excavated soils being placed in the berm. | Answered in Amendment No. 4 | |
| 61 | 1. 01-32-16; Construction Schedule: 2.1.B.9.c, If the contractor does not plan on doing any work until later in the season, is mobilization and field office necessary between February and March? Also, if there is NO work being done onsite, is any project management, environmental management, etc. required to be onsite? | Mobilization and a field office is not required for the tree cutting and tree removal (see the Construction Schedule Milestones and Time-restricted Activities table dated 12/09/2019 described in the Q&A #62 below). Onsite project management, environmental management, etc are not required when no construction activities are occurring. Also note that once infrastructure construction is complete and punch list items are resolved, a field office will no longer be required (during revegetation and associated maintenance periods). Weekly progress meetings would also cease after infrastructure construction is complete and punch list items are resolved. | Answered in Amendment No. 4 | |
| 62 | Please clarify the various project milestones and time-restricted activities for this project, especially considering the new proposal due date. | Please see the attached Construction Schedule Milestones and Time-restricted Activities table dated 12/09/2019. This table supersedes and replaces the Milestones indicated in the original specification section 01 32 16 2.1 B. 9. The time-restricted activities and dates in the table are mandatory, and are in addition to the dates/timing identified in Specification 01 11 00 1.8 and identified elsewhere in the specifications. | Answered in Amendment No. 4 | |
| 63 | The spec section 31 32 19-Geotextiles, Paragraph 3.2 Subsection D discusses Type I and Type II Geotextile seams. Which Seam Type is required on this project as we do not see it called out in the plans for which type of Seam is required in each instance. | Geotextile seams may be Type II (sewn or heat tack overlapped), unless specifically designated as Type I (sewn) in the Contract Documents. | Answered in Amendment No. 4 |
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