RFIs Set 2 W912P725BA012.pdf

RFI #: Question Response

On plan sheet C-10, what are the limits of the asphalt removal? If the LB construction limits are followed, then a sliver of asphalt will remain abutting the sidewalk, is that intended?

Asphalt to be removed within the construction limits. Limits shown are common with parcel boundaries. No sliver of asphalt is expected. See updated sheets in Amendment 4.

In Specification 01 45 00.00 10 Paragraph 3.5.1 please clarify nebulous statement "and sufficient number of additional qualified personnel to ensure safety and Contract compliance." Paragraph 3.5.3 indicates four (4) areas of expertise which must be accounted for in the CQC organization but does not specify whether they can be accomplished by a single qualified individual or must be accomplished by four (4) separate individuals.

With reference to specification section 014500.0010 Para 3.5.1 and 3.5.3, minimum of two individuals are required. One QC Manager and one Health and Safety Engineer. In addition, the contractor shall designate from his team an alternate QC Manager, in case the QC Manager is on leave or not available. Both QC and alternate QC Manger shall posses the qualification and knowledge as per Experience Matrix per Para 3.5.3. Contractor's CQC organization may require additional qualified personnel to meet the CQC requirements.

Specification 01 50 00 Paragraph 3.2.1 states "Provide temporary utilities required for construction. Temporary utilities will include but not be limited to power, water, sewer,..." Please clarify whether the Contractor is required to provide temporary sewer utility or if on-site sanitary facilities will be acceptable.

On-site sanitary facilities is acceptable. See Specification Section 01 50 00 paragraph 3.2.1 in Amendment 4.

Specification 01 50 00 Paragraph 3.5.1 requires "The building must be waterproof, supplied with a heater, have a minimum of two doors, electric lights, a telephone,..."

Please clarify whether the Government requires a physical telephone to be located in the administrative field office.

Phone requirement removed. See updated Specification Section 01 50 00 in Amendment 4.

Specification 01 50 00 Paragraph 3.5.1 requires "The building must be waterproof, supplied with a heater, have a minimum of two doors, electric lights, a telephone,..." Please clarify whether the Government requires a physical telephone to be located in the administrative field office.

Phone requirement removed. See updated Specification Section 01 50 00 in Amendment 4.

Regarding the same Contraction Joint, Detail A on S-04, the note says “HORIZ REINF, IF HORIZ REINF CONT, WATERSTOP AND BOND BREAKER NOT REQUIRED”. There is no elevation view given for this Reinforcement, but I’m presuming you want the Horizontal Rebar to run continuously through the Contraction Joints, and therefore there is no Waterstop nor Bond breaker at the Contraction Joints?

Contraction joints would be a joint constructed after the wall has been constructed or formed during construction and reinforcing steel would be continuous across that joint and a waterstop or bond breaker would not be needed. Construction joints or locations where wall construction might start and stop will require horizontal steel across the joint but will also require a waterstop within the joint. A waterstop is required for expansion joints but reinforcing steel will not cross the expansion joint. If a construction joint coincides with an expansion joint then horizontal steel is not needed but a waterstop and bond breaker is still required. Refer to spec section 03 30 00 for further guidance/requirements.

Requests for Information #2: W912P725BA012 - Pajaro FRM - Reach 6

Same exact question for Detail C on S-04, the Vertical Rebar runs continuously from the footing p into the wall, therefore Waterstop and Bond Breaker is not required, correct?

If there were a contraction joint crossing vertical steel then a waterstop and bond breaker would not be required. Most, if not all joints crossing vertical steel would be a construction joint and would require a waterstop. Refer to spec section 03 30 00 for further guidance/requirements.

Confirm all irrigation work is performed by others prior to starting construction.

Irrigation lines are schedule to be removed by others per specification section 024100 Para 3.1.2.3.

Reference sheet C-07 (p.21), Note 3, we are unable to find Appendix O – Tree Survey in the documents provided. See Amendment 4 for Appendix O - Tree Survey Files.

Sheet C-07 Note 3 states "Tree Survey is included as appendix O of the project design documentation report." Please provide this file for reference. See Amendment 4 for Appendix O - Tree Survey Files.

Sheet G-03 Note 14 states "IN ADDITION, CONTRACTOR SHALL BE RESPONSIBLE FOR

REQUESTING ALL UNDERGROUND UTILITIES THAT MAY POSSIBLY CONFLICT WITH THE

ABOVE OR BELOW GROUND IMPROVEMENTSWITHIN THE PERMANENT FLOOD

CONTROL EASEMENT OR DAMAGED BY CONSTRUCTION TRAFFIC IN THE FIELD TO BE

REMOVED AND RELOCATED." Please confirm whether the Government has initiated any coordination efforts with utility owners for the identification, removal, or relocation of potentially impacted utilities within the permanent flood control easement.

Note 14 on Sheet G-03 directs the contractor to notify the COR prior to any unexpected utilities that will be need to be removed and relocated.

Due to the delay in scheduling the site visit, we respectfully request an extension of the question period.

The bid was extended in Amendment 0003. New bid due date is August 20, 2025 at 1 PM PST. Bid Opening will now be August 20, 2025 at 2 pm PST.

On plan sheet C-45, please clarify discrepancy in riprap and fence embedment details.

Rock Slope Protection Schedule details embedment of riprap to be 2ft, detail 5-Levee Toe Drainage details fence embedment at 2.5ft. Clarify if embedment depth for where riprap and fence are combined to be 2ft or 2.5ft.

The chain link on the rip rap or water side of the channel is embedded 2 feet as outlined on detail 1 on Sheet C-45 and details 1 and 2 on Sheet C-46. The chain link is embedded 2.5 feet on the landside as outlined on detail 5 on Sheet C-45.

On plan sheets C-45 and C-67, please clarify discrepancy in riprap thickness. Detail 1 on sheet C-45 shows thickness "T" to include the 9" of bedding stone where detail 1 on sheet C-67 shows thickness "T" to exclude 9" of bedding stone. Confirm if the Class III riprap is to be 2ft thick or 2.75ft thick on top of the 9" of bedding stone.

The total thickness of rock “T” as shown on detail 1 on Sheet C-45 and details 1 and 2 on Sheet C-46 includes the 9 inches of bedding stone. The slope thickness, T, in the Rock Slope Protection Schedule on Sheet C-45 includes the 9 inches of bedding stone with the remaining thickness being 24 inches of Class III RSP for a total thickness "T" of 2.75'.

Will Contractors be allowed to pull water from the creek for construction use?

Contractor is not authorized or permitted to withdraw water from the creek for construction use.

Can details and or images be provided of the outfall structure to be removed at station

LB89+00

No

69 Do any of the 24" CIDHs need Gamma Gamma Logging tests or CSL tests? No

The specs call for PDA testing for the sheet piles. Can the test piles be used as production piles?

PDA and test pile requirements have been removed as part of Amendment 4. See update Spec Section 31 41 16.

Is the contractor responsible for piles of vegetation and debris on the site that are from the structure, pipe, and appurtenance removals by owners? How is a quantity going to be determined to be fair and equal to all bidding contractors?

Yes, Contractor is responsible. See specification section 02 41 00 and section 35 41 00 for requirements on removal of existing features from others work.

Piles of vegetation and debris on the site are appurtenances that are from the removal/demolition of buildings, structures and pipe by others. Bidders are responsible for quantity takeoffs that are not explicitly furnished by the Government.

Sheet C-14 notes an existing building to be removed and disposed at LB85+00. It appears this work has already been done. Should this be changed to reflect current conditions?

Contractor is responsible to remove and dispose (R&D) the remains of the existing building as noted on Sheet C-14. In addition, see response to RFI 13.

There are no haul routes shown for the right bank access. Please provide intermediate haul routes available for right bank construction. See updated sheets in Amendment 4. Sheet C-03 and C-05 were updated.

Please provide the typical section from STA LB91+35 to LB92+85 on sheet C-29.

The grading within this stationing range is the same as for the levee without the need for the inspection trench. A section through this area is provided on Sheet C-66 at Station LB92+00.

Per Amendment 0002 released on July 22, 2025, adding Schedule C and Schedule D to the solicitation and the Pre-award Survey per the original solicitation, please confirm if the Pre-award Survey and the newly added Schedule C and Schedule D forms are required with the bid submission or if the Pre-Award Survey along with Schedule C and D are intended to be post bid documents if required by the contracting officer and are for informational purposes during the bidding period.

Pre award survey and Schedules C & D will be requested by the contracting officer post-bid if the contractor has not worked with USACE San Francisco in the last year.

There are several ditches that appear to intersect with the Corralitos Creek. For Example, at STA LB25+562.96 and STA LB52+13.41, etc.. 1) What kind of Ditches are these? 2) Are they for irrigation, Drainage, or something else? The ditches are of various kinds all of which are for carrying water flow.

There are several ditches that appear to intersect with the Corralitos Creek. For Example, at STA LB25+562.96 and STA LB52+13.41. Will these ditches have water flowing in them during the project?

2) Will the contractor need to Bypass this water?

3) How much water will be flowing?

4) What periods of time (Seasons, Months or Date Ranges, etc.), will this water flow occur?

The ditches may have water flowing in them during construction. The contractor will need to by pass this water.

Some volume of water will continue to flowing throughout the construction of the project.

Contractor shall anticipate and plan for the presence of water in the ditches at all time.

Specification Section 33 40 00 Part 3.6.1 discusses Manholes and Inlets. The Plans do not appear to call for the Installation of Manholes and Inlets. Can you please confirm that Manholes and Inlets will not be required for this project?

The project will include gate well structures shown on Sheet C-39, C-42, C-02, and elsewhere. No manholes or inlets are to be installed.

Specification Section 33 40 00 Part 3.1.1 states to Excavate the Trenches without any over-excavation. Would Over-excavation for Benching or Sloping of the Trench Walls be acceptable?

Overexcavation is not accepted.

For Storm Drain 6, There is a callout for 9" of Bedding Stone to be placed at the Waterside Outfall, however the Profile View shows the bedding stone to be thicker than 9". Can you please confirm the thickness of bedding stone that will need to be placed at this location?

Bedding stone is 9" thick. Sheet C-42 has been updated. See Amendment 4.

On plan page C-43, please confirm if SDL-7 is to follow the standard pipe and trench bedding detail. Plan view does not show a callout or hashing similar to previous drainage sheets.

Yes. See detail 3 on C-67.

Can materials generated from on-site excavations which do not meet the requirements for select fill be used to backfill on-site borrow areas?

Yes, materials generated from on-site excavations which do not meet the requirements for select fill may be used to backfill on-site borrow areas.

The geotechnical report was issued on 7/22. We were told during the on site meeting that questions could only be asked until 7/25. 3 days is not adequate time to fully review this document and ask relevant questions. Are you planning on extending the bid date so that we have time to adequately review that report ??

The bid is extended in Amendment 0003. New bid due date is August 20, 2025 at 1 PM PST. Bid Opening will now be August 20, 2025 at 2 pm PST.

Spec Section – 01 20 00 Paragraph 1.6 Single Job Pay Items – the title and description of the item listed in 1.6.1 does not match the description shown for CLIN 0001 in the IFB.

Please clarify what costs are to be included in CLIN 0001.

Bid schedule was updated in Amendment 0003.

DWG 21-28, Sheets C-07 to C-14: Note 3 refers to Appendix O of the Project Design Reports. Can you please provide this report? See Amendment 4 for Appendix O - Tree Survey Files.

Please confirm if the Certificate of Current Cost or Pricing Data is to be submitted in the bid, or submitted post-bid.

In accordance with FAR 15.403-1 (c )(1)adequate price competition, CCPD is not required. The Contracting Officer will request CCPD if necessary post bid.

Will exiting and entering off of Holahan Rd be required to be flagged? That road has an unbelievable amount of traffic on it at times. I did not see any language concerning flagging while trucking.

Please refer to Spec Section 01 50 00 par. 3.3 for Traffic Control Plan requirements.

I wanted to ask whether the use of shotcrete is permitted for the construction of the proposed floodwalls on the Pajaro River Reach 6 project.

The use of shotcrete for the construction of flood walls is not permitted.

I am seeking clarification regarding the Period of Performance and Delivery Schedule outlined in the solicitation.

Section 00 73 00 Delivery schedule (Line items 0001–0006 ) mentions a September 1, 2025, to February 28, 2026, timeframe, but also references a 791-calendar-day performance period starting from the Notice to Proceed receipt.

The period of performance will be 791 calendar days from the issuance of Notice to Proceed.

See Amendment 4 for revised solicitation section 00 73 00 removing Sep 2025 - Feb 2026 delivery schedule.