Attachment 0009 - Solicitation Questions - 6-3-25.pdf

Question 1:

Is there any work that will need to be done on the existing sampling wells? I did not notice the linework for these on the plans, and just confirming these will not have to be adjusted.

Response 1:

It is the government's intent not to disturb the exisitng monitoring wells. Special care shall be taken when working in and around the exisitng wells.

Question 2:

In the SOW it states that an EM 385 SSHO will be required by the contractor. Can this individual also serve as the QCM and Superintendent? If the answer to that question is no, can the QCM and Superintendent be the same individual? If that answer is no, are we to assume that we must have three individuals on site, one serving as the Superintendent, one serving as the CQC QCM, and one serving as the EM 385 SSHO.

Response 2:

The QC and the Superintendent needs to be two separate personnel, one of the them may perform as the SSHO.

Question 3: Are the tracks located at the new 60 Inch Storm being removed and replaced by others?

Response 3:

The contractor is allowed to removed and install the storm sewer pipe by there own means and methods. The Arsenal will allow the contractor to open cut under the tracks with the intent for the contractor to backfill and compact in lifts. There will be no additional compensation if the contractor elects to remove the tracks. The tracks must be level when finished.

Question 4:

The ballast and subballast material, can we use local suppliers that match the gradation or do we need Arema approved materials (hardness)? If it is Arema approved, what would be the classification?

Response 4:

The ballast material must meet AREMA approved material specificaitons. The ballast shall be AREMA #5 classification. The subballast shall meet AREMA Standard 4A Gradation.

Question 5:

The specifications and descriptions are a little unclear, is trench backfill required under paved surfaces? (Aggregate backfill from top of bedding around pipe to the bottom of the pavement subbase)?

Response 5: Storm and sanitary sewer trench backfill shall have aggregate backfill from the top of bedding around the pipe to the bottom of the pavement subbase for all locations under paved surfaces. Storm and Sanitary pipes outside of paved surfaces require aggregate backfill from the top of bedding around the pipe to 12 inches above the pipe. After meeting the 12 inches above the pipe the existing trench material may be used to backfill to the surface unless otherwise noted.

Question 6: This contract references SUDAS, does this mean Saturdays if worked would not be considered a working day counted?

Response 6:

This is correct, Working days will not be charged for Saturdays (unless a mandatory six-day work week is specified in the contract documents.

Question 7: In the past, contracts have been put on winter hold with no working days charged due to weather, will this contract have this?

Response 7:

In the past, no work is allowed while on winter hold. Days will be counted unitl all pre-construction submittals have been submitted and approved. At that point the contract can be put on Winter hold unstil the specified release date.

Question 8:

Iowa DOT and IL DOT both have winter hold but work is allowed without days being charged, see screen snip below. Some of the work could be done in the winter (pipe work outside of paved areas).

Repair Beck Avenue - Solicitation Questions 6/3/2025

Response 8: Per SUDAS Section 1.08, a winter hold can be issued. No Contractor work should occur and no working days charged.

Question 9: Pavement Removal is closer 15500 sy than the quantity shown Response 9: Due to a computer error, sheet C.01 quantity table has been updated.

Question 10: 9” PCC Pavement is closer to 7800 sy than the quantity shown Response 10: Due to a computer error, sheet C.01 quantity table has been updated.

Question 11: We have found 1 more sanitary manhole than the quantity shown Response 11: Due to a computer error, sheet C.01 quantity table has been updated.

Question 12: Misc notes on the 12” sanitary show RCP, is RCP allowable for sanitary?

Response 12:

The sanitary pipe lables on sheet SAN.02 should read PVC not RCP. The sanitary pipe installed on the project is either standard PVC or AWWA C900.

Question 13:

The structure count and description listed on the quantities varies from what is shown on the plans, below is what I found:

Response 13: Due to a computer error, sheet C.01 quantity table has been updated.

Question 14:

A couple of suggestions on the following structures that conform with the detail as shown in Sudas SW 404:

Structure 172 – Change to a SW 404 48 Inch x 96 Inch Inside Dimensions Structure 160 – Change to a SW 404 60 Inch x 72 Inch Inside Dimensions – the 36” pipe measures 44 inches, need to add 12 inches beyond each side of the pipe per detail Structure 183 - Change to a SW 404 48 Inch x 96 Inch Inside Dimensions

Response 14: The engineer for the project will allow the suggested substitution.

Question 15:

Last thing I have noticed which is spelled out in the solicitation but wanted everyone to be aware. During our takeoff of the project, we have came up with quantities that differ from what is listed on the plans. The quantities listed are for information only, this project is lump sum and what is shown on the plans would be included in the bid.

Response 15:

Sheet C.01 should be treated as a reference only. The project is bid as a lump sum project and the contractor's bid should account for all work detailed in the plan sheets. The contractor is responsible for providing their on quantity take off for the project and making a bid based on their take off and not the reference of sheet C.01.

Question 16: Please confirm friction testing will be required.

Response 16: No, friction testing will not be required.

Question 17: Please confirm CLIN 2 of the pricing schedule is only for rock excavation.

Response 17: CLIN 0002 is a Time and Material CLIN and should be priced as a unit price per cubic yard. This is specific to rock excavation only.

Question 17: Please confirm we are to follow the SUDAS 2024 specs for this project.

Response 17: See sheet A.01

Question 18: Are we to reinstall existing traffic signs or provide and install new signs?

Response 18: There is a Sign Schedule on C:12 of plans

Question 19: What are the dimensions of the smoke hut?

Response 19: Size of bus stop shelter used by municipalities.

Question 20: Where does the smoke hut need to be stored prior to reinstallation?

Response 20: That will be determnined at a later date, but will be in close proximity

Question 21: Is the contractor responsible for ground water testing?

Response 21: No DPW will collect up to samples fo rLab testing at the beginning of trenching activities. See CONTAM.01 drawing for more information

Question 22: Is the contractor required to provide an updated MEC survey or will one be provided?

Response 22: See CONTAM.01 drawing for more information

Question 23: Do the Superintendent, SSHO and QC Manager need to be 3 separate individuals?

Response 23: See Responce to Question # 2

Question 24:

Can the period of performance be extended after award once the material/equipment lead times are confirmed due to current market conditions for the equipment for this project?

Response 24: The Government will address each situation as it occurs to determine if extending the completion date is necessary.

Question 25: Please provide the site visit registration information.

Response 25: Site Visit information has beed added to this amendment.

Question 26: Is there a bulk water fill i.e. a hydrant or water source we can pump from for grading operations in close proximity?

Response 26: Yes there is a central fill point on island.

Question 27: Does this project require phasing?

Response 27: Yes

Question 28: Please provide lay down/staging area for construction.

Response 28: Dependent on completion of current project and will be decided prior to start of work once contractor has submitted a.

Question 29: Can we shut down roadway access or do we need to maintain one lane for travel?

Response 29: Road can be shut down

Question 30: What are the limitations for construction intervals?

Response 30: The contractor shall submit a work/phasing plan for approval prior to construction.

Question 31: Is there an anticipated start date?

Response 31: Please see paragraph #9 of the solicitation.

Question 32: What is the reinforcing required at the 6" PCC? The drawings only call out the spacing for the wire, not the gauge.

Response 32: 4 Guage

Question 33: What is the reinforcing required at the 9" PCC?

Response 33: Refer to SUDAS Figure 7010.101

Question 34: What is the reinforcing required at the 8" PCC?

Response 34: Refer to SUDAS Figure 7010.101

Question 35: Is this reinforcing required to be epoxy coated?

Response 35: Yes

Question 36: Are there any irrigation requirements?

Response 36: No irrigation requirements, but contractor is responsible for watering newly planted grass and trees until required growth is reached.

Question 37:

In reference to railroad ballast typical detail - Are we to supply and install ballast beneath the existing railroad ties? If not, what are the limits for ballast placement?

Response 37: Yes

Question 38: Is there a train schedule available?

Response 38: No

Question 39: Is this project tax exempt?

Response 39: Yes

Question 40: Are there any permitting requirements? If so, what are they?

Response 40:

Yes; A Stormwater Pollution Prevention Permit (NPDES) will be required and an IEPA Construction Approval Permit for Sanitary Sewer will also be required.

Question 41: Is there a preferred location for the concrete washout?

Response 41: Contractor must provide their own washout and have removed when project is complete.

Question 42: Please confirm the unit of measure listed for painted pavement markings "STA" in the estimated quantity page C.01.

Response 42: STA is in reference to STATION and is based on 100 lf.

Question 43: Can general pics of the work areas be provided?

Response 43: Specific areas would need to be specified. We don't provide photos of the entire work site.

Question 44: Does a plumber need to be used to place pipe or oversee the placement?

Response 44: not for storm or sanitary sewer per the specifications