W912P722B0002 Request for Information Responses Part II.pdf

DRY CREEK ECOSYSTEM RESTORATION PROJECT – PHASE I

AS OF: 27 April 2022

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P722B0002

The intent of this section is to provide questions & comments received from interested parties on the above solicitation, and our responses to those questions and comments. It is possible that the information below does not reflect 100% of the questions and responses. The questions and comments do not necessarily represent questions received from any particular contractor.

Questions and responses are provided for information only and are not made part of the solicitation. Only a formal amendment (SF30) to the solicitation changes the solicitation.

Changes to any previous responses in this document will be struck-through and new, updated responses will be provided as appropriate

RFI

Spec Section RFI (Question) Responses

1 SF1442

Do you know what the Engineers Estimate is?

All I see is a 'Magnitude between $5M - $10M'

The Engineer’s Estimate will not be disclosed. Please refer to Standard Form 1442 on page 3 of “W912P722B0002 Dry Creek_IFB and Specifications” for the magnitude of the requirement.

The information in the plans and specifications shall be used to make the estimate.

2 Amendment

We can’t get the Dry Creek Phase 1 drawings to cooperate with our estimating software. It needs a password to open. Can you tell me what the password is please?

Please refer to “W912P722B0002 Dry Creek_Amendment 0001”.

Amendment

Section 00 21 00

Is the site visit mandatory for all bidders?

Please refer to FAR 52.236-27 in Section 00 21 00 of “W912P722B0002 Dry Creek_Amendment 0002”. Attendance at the site visit is not mandatory, but is still highly encouraged.

4 Are we allowed to fly a drone around the site to No collect video footage of the project reaches?

Plan Sheet G-02, General Notes, Note 8.

Will topographic survey be redone as the last LIDAR survey was done in 2013/2014?

No. For information on pre-project topography see Plan Sheet G-02, General Notes, Note 8.

Plans

In areas where there is the tag NIC, how do you intend for the split of work on the border of this zone take place?

Work shall progress up to the N.I.C. cloud as shown on the plans.

LWS more than 50% within the N.I.C. cloud shall be considered N.I.C.

Bank Treatment Type 1 shall extend up to the N.I.C. cloud shown on the plans.

Will collaboration with A8 companies be in this scope?

No

7 Plans and Specifications

Are there scheduled and or timed releases of water into Dry Creek during the working calendar days of the project?

The contractor shall follow the plans and the specs to accomplish the work as there are no scheduled or timed significant flood control releases for the proposed environmental work window in 2022 and 2023. However, releases may become necessary if weather conditions drastically change.

Specification

Section 35 44 00 Part 2.5

Are there any specific structural standards or requirements on the steel to be used within the 1’ high crib wall?

The specs are intended to be sufficient for describing the product requirements of the steel threadbar, nuts, and washers. See Spec.

Sec. 35 44 00 Part 2.5 Threadbar and Fasteners.

Specification

Section 31 23 19

How much do you want us to control and keep our work areas dry?

See Spec. Sec. 31 23 19 Dewatering.

Specification Section 01 57 19

Paragraph 3.5.2

What are the turbid limits for the downstream water flow?

See Spec Sec. 01 57 19 Par. 3.5.2, turbidity levels at point of compliance 500ft downstream of in-stream construction cannot exceed 20% above naturally occurring background levels or 20 NTUs, whichever is greater.

11 Plans and Specifications

Access to the road starting on Dry Creek, what have they done, what has county done etc? IE: tree clearing around the entry point.

The contractor shall follow the instructions in the plans and specs for modifications necessary for construction access. No, the County didn’t do any work on the access to the road.

12 Plans

What is the line of sight needed around parts of the jobsite? Will extra trees need to be removed for enhanced visibility? IE:

site access or other areas of viewing.

Trees clearing shall be according to the plans and as approved by the Government Representative.

13 Plans

Are there any known vineyard irrigation lines or vineyards that would be get damaged or removed during our grading activities?

See plans for information

14 Plans Are there specific access areas to the water ways?

See plans for information.

15 Plans

Are there any areas we can pump water to? IE: a silt or sediment pond.

Areas available for construction activities are shown on the plans.

Specification

Section 31 23 00

How is native streambed material defined?

…Investigate the mix % to make sure the fines aren’t outside the limits.

See Spec. Sec. 31 23 00 Excavation and Fill, Part 2.1 Materials.

17 Plans and Specifications

What is Interfluves’ oversight on install of the LWS? Will one engineer/monitor be present at time on install or will multiple monitors be available so we may install multiple LWS?

Government will provide appropriate Quality Assurance oversight as dictated by the Contractor’s schedule and as needed per the plans and specifications.

Specification Section 01 57 19

Paragraph 1.8

Do we need to take out any permits to cross the bridges?

See Spec. Sec. 01 57 19 Par. 1.8, contractor is required to obtain any licenses and permits required for completing the work.

Specification

Section 00 21 00 and

00 72 00

I have a question regarding the bid guarantee requirement on page 10. May a subcontractor provide the guarantee for the prime?

Per FAR 52.228-1, the bidder shall furnish a bid guarantee. The bidder’s name on the SF 1442 must match the name on the bond.

20 What is the insurance requirements of the Response to be provided at a later date.

project? I could not find in the Specs documents.

Is there any intention towards phasing on this project or milestones as in year 1 and year 2?

No. Contractor shall submit their sequence with the submittal of the schedule.

And where are the options in the phasing?

Contractor shall submit their sequence with the submittal of the schedule depending on whether option is exercised or not.

22 Specifications

What is the quantity of logs that are already secured in the stockpile?

Rootwads? Snags?

The contractor shall use the plans to determine how much snags and rootwads are needed and the government will provide all Snags and Rootward needed for the project. The government has provided the stockpiled location map with the specification package.

Is there a Geotechnical engineer report completed on this project and or available for our review?

Yes. See attachment.

Specification Sections 01 50 00 and 31 11 00

Per the distributed stop list and section drawings of stop 3b and area 10A3, are there structures, debris, and farming equipment to remove here? It appeared these aforementioned items were in the way of our access to the site.

Site access shall be per section 01 50 00 and the Construction Site Plan as approved by the Government Representative. The contractor shall refer to Section 31 11 00 for work related to Clearing.

Plans

Is there a designated disposal area for chips and mulch?

Areas available for construction activities are shown on the plans.

Specifications Section 31 11 00

Will they need to be removed from all work areas?

See Specifications Section 31 11 00

Can we negotiate with property owners to stockpile on their sites?

Yes.

26 Specifications

Will any water source be available from the vineyards to use for construction and dust control?

No, the contractor shall come with a plan to supply the water for the dust control. Please see the Specification for the Dust Control Plan submittal.

27 Specifications

Per sheet C-17 Note 3 , Optional Bridge. Can you provide a more definitive detail as to what type of bridge and length of bridge would be required?

No. Contractor must comply with applicable permits per the Specification.

28 Plan Sheets 24, 47, & 48

I couldn’t find grading plans for the bank repair work shown on sheet 23 (C-21). Please direct me or provide.

See section views on Sheets 24, 47, & 48 for Main Channel Bank Treatment Sta. 544+00 to 547+00 and 526+00 to 527+00 grading lines.

29 Specification Section 14

On sheet 23, At Bank Treatment Sta. 526+00 to 527+50, detail 3/51 is called out for the bank

Section 14 on Sheet 24 shows a Type 3 rock toe, but partially obscured by also showing the High Bank Pool LWS. The “At Pool Version of the Type 3 Bank Treatment (3/51)” shall be constructed at the toe of the bank in addition to the High Bank Pool LWS (2/60)

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P722B0002

treatment. This detail does not agree with section 14/24 which is called out thru the same portion of the bank. (Specifically the toe of the bank). Please clarify.

30 Plans

Please provide an elevation for the top of the Rock Toe at detail 3/51.

The top elevation of the Rock Toe in Bank Treatment Type 3 shall be the local OLW elevation. This is shown on correctly on the Typical Section – Bank Treatment Type 2 in the plans.

In order to allow time for review of specifications and quantifying all aspects of this project into one Base Bid item and one Option Item; will the government consider extending the bid date by two weeks?

Response to be provided at a later date.

Will the government consider providing CADD files to assist with quantity takeoff development?

Response to be provided at a later date.