AG2B46S170010__Amend_3.pdf

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 23

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

AG-2B46-S-17-0010/000003

Specification 252, item 8, pages 252-4 through 252-6

3. Section J-4 Plans. Delete these plans from the solicitation and replace with the following attached plans dated 3-22-2017:

Plan 2 of 30

Plan 3 of 30

Plan 5 of 30

Plan 21 of 30

Plan 24 of 30

4. Section L, Additional bid Submission

Instructions:

Add 7. Joint Ventures must submit their endorsed Agreement with Bid package.

5. All other terms and conditions of this solicitation remain the same.

Questions and Answers have also been posted.

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

BID SCHEDULE ITEMS SPEC. QUANTITY UNIT

Item No. Work or Material No. Unit Price Amount

1 Mobilization and Demobilization 8 1 LS -$

2 Pollution & Erosion Control 5 1 LS -$

3 Earthfill - Over WCS 252 5,123 CY -$

4 Excavation - Internal Levee Removal 252 367,848 CY -$

5 Water Control Structure - Precast Concrete 5' Dia. X 3' Tall 251 2 EA -$

6 Water Control Structure - Precast Concrete 5' Dia. X 4' Tall 251 2 EA -$

7 Water Control Structure - 4' x 12" Inline 251 10 EA -$

8 Water Control Structure - 5' x 12" Inline 251 3 EA -$

9 12" SDR-35 PVC Pipe 45 1,694 FT -$

10 18" PS-46 PVC Pipe 45 700 FT -$

11 8" SDR-26 PVC Pipe 45 800 FT -$

12 12" Flap Gate 71 4 EA -$

13 18" Flap Gate 71 4 EA -$

14 Seeding and Mulching 6 160.5 AC -$

15 Rock Riprap 3 252 Ton -$

16 Construction Survey 7 1 LS -$

17 Excavation - External Levee Removal 21 248,113 CY -$

18 Perfromance & Payment Bonds n/a 1 LS Total: -$

Concorde Land, LLC WRP Restoration

NRCS-Missouri 2-3 11/2016

7. ITEM OF WORK AND CONSTRUCTION DETAILS

Item of work to be performed in conformance with this specification and the construction details therefore are:

a. Subsidiary Item, Clearing and Grubbing

(1) This item shall consist of site preparation work consisting of clearing and grubbing within working limits.

(2) Within the internal pools all trees, stumps, roots, and root clusters that have a diameter of 1 inch or larger shall be removed to the ground surface.

(3) Location of disposal areas for cleared and grubbed materials shall be in pools as approved by NRCS. Specific locations will be marked or flagged at the site by

NRCS.

(4) Material shall be piled in locations designated by NRCS. Following placement, material shall be burned.

(5) No trees over 9 inch DBH (Diameter at Breast Height) shall be cut/removed from April 1st to October 31st unless approved by NRCS.

(5) No separate payment will be made for this item. Compensation for Clearing and

Grubbing will be included in Bid Items 3, Earthfill – Over WCS, 4, Earthfill – Internal Pools and 17, Excavation – External Levee Removal.

NRCS-Missouri 6-4 11/2016

7. ITEM OF WORK AND CONSTRUCTION DETAILS

Material certifications are required for these items. Item of work to be performed in conformance with this specification and the construction details therefore are:

a. Bid Item 14, Seeding & Mulching

(1) This item shall consist of all work and materials needed to seed and mulch the designated area.

(2) The area to be seeded and mulched shall include:

a) All Internal and External Levees

b) All exposed side slopes with slopes greater than 10:1

c) All Habitat Mounds

d) Other areas designated on drawings or as staked in the field by

NRCS.

(3) Ground agricultural limestone will be applied at a rate of 1000 lbs./acre of effective neutralizing material.

(4) Fertilizer furnishing the following minimum amounts of available plant food per acre shall be applied. Fertilizer shall be applied uniformly over the designated seeding areas.

Dikes, floodways and disturbed areas as determined by Engineer Nitrogen (N) ............................................................... 30 pounds Phosphate (P205) ....................................................... 90 pounds Potash (K20) .............................................................. 90 pounds

(5) A companion crop of spring oats or wheat as approved by Contracting Officer shall be broadcast with fertilizer at a rate of 25 pounds per acre.

(6) Incorporate lime and fertilizer with 2 passes of a harrow followed by 1 pass of a cultipacker. Areas not accessible to field machinery shall be prepared by hand.

All gullies and rills shall be filled and smoothed prior to application of lime and fertilizer.

(7) PLS is pure live seed. Pure live seed percentages in bulk seed is equal to the percent of purity times the percent of germination as shown on the seed tag. Grass variety shall be as specified below or as approved by Contracting Officer. Native Forb Mix shall consist of at least 60% of the native forbs on the Preferred Forbs for Monarchs list (Table 1) with a minimum of 9 species, with annuals and biennials not to exceed 10% of the mix. No single species shall exceed 15% or be less than 1% of the mix. Additionally, a minimum of 3 species blooming in each season (spring, summer, and fall) is required (see Table 2). A minimum of 3% of the mix will be comprised of milkweed seed. Two thirds of this milkweed seed should be common milkweed (Asclepia, syriaca). The remaining third of the milkweed seeds should be swamp milkweed (Asclepias incarnate). Additional forbs and milkweed species may be used from Table 2, depending on availability, site conditions, and

NRCS-Missouri 6-5 11/2016 necessity to meet the requirements of the plantings listed above. Seed shall be furnished in amounts that equal or exceed the following rates per acre:

Pure Live Seed

Species Variety Rate (lbs. per ac.)

Big Bluestem Kaw 8.4

Indiangrass Cheyenne 2.3 Eastern Gamagrass PMK-24 4.8 Switchgrass Kanlow 1.4 Alfalfa 2.3 Native Forb Mix 2.3

Seeding Dates:

March 16 through June 30 November 16 through March 15

(8) Broadcast seed uniformly and cover ⅛ to ¼ inch deep with a cultipacker. Seeding operation shall be performed immediately after seedbed preparation, if seeding dates permit.

(9) At all other times, all operations including mulching and companion crop will be performed except sowing the seed. Seeding will be done with No-till drill at a depth of ⅛ to ¼ inch during the next seeding period as seeding dates permit. No-till drilled rates remain standard. Vegetation shall be killed with a chemical burn down consisting of glyphosate, 2,4-Dichlorophenoxyacetic acid (2,4-D) and surfactant according to manufacture’s label.

(10) Mulch shall be small grain straw relatively free of weed seed. The mulch shall be applied uniformly over the designated area at a rate of 1.5 tons per acre. Anchor mulch with: (1) mulch tacker into the top one [1] inch of soil, or (2) wood cellulose fibertack or a water dispersible mulch tacker following manufacturer's recommendations, or (3) commercial mulch nets or excelsior blankets. Only Option (2) or (3) shall be permitted in areas that are hydro-seeded.

(11) Insofar as practical, all operations shall be performed on the contour.

(12) Payment shall be made by Method 1. This payment will constitute full compensation for the completion of the work.

NRCS-Missouri 6-6 11/2016

NRCS-Missouri 6-7 11/2016

NRCS-Missouri 6-8 11/2016

NRCS-Missouri 6-9 11/2016

NRCS-Missouri 6-10 11/2016

NRCS-Missouri 6-11 11/2016

6-12

NRCS-Missouri 21-5 3/2017

10. ITEMS OF WORK AND CONSTRUCTION DETAILS

Items of work to be performed in conformance with this specification and the construction details therefore are:

a. Bid Item 17 – Excavation – External Levee Removal

1) This item shall consist of excavation of material from existing levees and diversions labeled as external levees on drawings.

2) The final finished surface of the levee shall be to the neat lines as shown on the drawings. The final finished surface shall be such that all points measured for the government checkout survey have an elevation that is within 0.0 feet to +0.2 feet when compared to the neat lines as shown on the drawings; except for the auxiliary spillway crest sections where all points measured shall have an elevation that is to the neat line elevation within 0 to +0.1.

3) Levee shall not be lowered more than elevation shown on drawings.

4) Items subsidiary to this item:

Earthfill – External Levee Removal, Construction Specification 252 Clearing and Grubbing, Construction Specification 2

5) Measurement and payment shall be by Method 2

6) Use of Excavated Material shall be by Method 1.

7) Disposal of waste materials shall be by method 2.

b. Subsidiary Item – Excavation - Existing Pipes and Control Valves

1) This item shall consist of excavation of material from existing levee to remove existing pipe and control valves.

2) No separate payment will be made for this item. Compensation will be included in Bid Item 3, Earthfill - Over WCS.

c. Bid Item #4 – Excavation – Internal Levee Removal

1) This item shall consist of excavation of material from existing levee labeled as internal levees on drawings.

2) Equipment involved in the final grading of the site shall be equipped with and operated by GPS guided automatics.

3) The final finished surface of the excavation shall be to the neat lines as shown on the drawings and as represented by the digital surface provided by the Government in LandXML format. The final finished surface shall be such that 95% of all points measured for the government checkout survey shall have an elevation that is within -0.1 feet to +0.1 feet when compared to the planned digital surface with all points within -0.2 feet to +0.2 feet.

NRCS-Missouri 21-6 3/2017

4) Items subsidiary to this item:

Earthfill – Internal Pools, Construction Specification 252 Clearing and Grubbing, Construction Specification 2

5) Measurement and payment shall be by Method 2

6) Use of Excavated Material shall be by Method 1.

7) Disposal of waste materials shall be by method 2.

d. Subsidiary Item – Foundation Stripping and Preparation

(1) This item shall consist of stripping all vegetation from the foundation of all berms, floodways, internal pools and spoil berms to the dimensions and depths as shown on the drawings. Removal of non-woody vegetation within the internal pools may be performed by burning, mowing or disking the area prior to fill placement. Adequacy of vegetation removal shall be at the discretion of the government representative. Burning may be performed at any time of the year in compliance with local laws and regulations.

(2) All channel banks and sharp breaks within the foundations shall be sloped to no steeper than 1.5:1.

(3) No separate payment will be made for this item. Compensation will be included in payment for the corresponding Excavation bid item.

NRCS-Missouri 252-4 3/2017

8. ITEM OF WORK AND CONSTRUCTION DETAILS

Item of work to be performed in conformance with this specification and the construction details therefore are:

a. Bid Item 3 – Earthfill – Over Water Control Structures (WCS)

(1) This item shall consist of placement of the earthfill placed in external levees at water control structure or as backfill where pipes and valves are to be removed.

(2) Every effort shall be made to utilize earthfill materials within the uppermost 1’ (topsoil) of borrows areas and foundation preparation areas for the final topsoiling of all earthfill levees.

(3) The final finished surface of the earthfill shall be to the neat lines as shown on the drawings. The final finished surface shall be such that all points measured for the government checkout survey have an elevation that is within 0.0 to +0.5 feet.

(4) Placement and compaction shall be as listed on the drawings and as further described below:

(i) Earthfill placement will be brought up in approximately horizontal layers not to exceed 8 inches in thickness before compaction. Each layer shall be spread and processed.

(ii) Each layer shall be compacted by two (2) passes of the earth moving equipment, except that low ground pressure dozers and tractors cannot be used alone to obtain compaction.

(iii) The moisture content of the fill at the time of compaction shall be such that when kneaded in the hand, the fill material will form a ball which does not readily separate. Water shall be added to the fill when needed. Uniform moisture distribution shall be obtained by disking or other methods approved by the government. The maximum moisture content is when conditions are too wet for efficient use of the hauling and compaction equipment. No additional payment will be made for the addition of water when needed.

(5) Items subsidiary to this item:

(i) Clearing and Grubbing, Construction Specification 2

(ii) Excavation – Existing Pipes and Control Valves, Construction

Specification 21

(6) Payment shall be made as described in Section 7, Method 4.

b. Subsidiary Item – Earthfill – Internal Pools

(1) This item shall consist of placement of the earthfill in internal pools as shown in drawings.

NRCS-Missouri 252-5 3/2017

(2) Equipment involved in the final grading of the site shall be equipped with and operated by GPS guided automatics.

(3) The final finished surface of the earthfill shall be to the neat lines as shown on the drawings and as represented by the digital surface provided by the Government in LandXML format. The final finished surface shall be such that 95% of all points measured for the government checkout survey shall have an elevation that is within -0.1 feet to +0.1 feet when compared to the planned digital surface with all points within -0.2 feet to +0.2 feet.

(4) Placement and compaction shall be as listed on the drawings and as further described below:

(i) Earthfill placement will be brought up in approximately horizontal layers not to exceed 8 inches in thickness before compaction. Each layer shall be spread and processed.

(ii) The moisture content of the fill at the time of compaction shall be such that when kneaded in the hand, the fill material will form a ball which does not readily separate. Water shall be added to the fill when needed. Uniform moisture distribution shall be obtained by disking or other methods approved by the government. The maximum moisture content is when conditions are too wet for efficient use of the hauling and compaction equipment. No additional payment will be made for the addition of water when needed.

(5) No separate payment will be made for this item. Compensation will be included in Bid Item 4, Excavation – Internal Levee Removal.

c. Subsidiary Item – Earthfill – External Levee Removal

(1) This item shall consist of placement of the earthfill removed from external levees as shown in drawings.

(2) Placement and compaction shall be as listed on the drawings and as further described below:

(i) Earthfill placement will be brought up in approximately horizontal layers not to exceed 8 inches in thickness before compaction. Each layer shall be spread and processed.

(ii) Each layer shall be compacted by two (2) passes of the earth moving equipment, except that low ground pressure dozers and tractors cannot be used alone to obtain compaction.

(iii) The moisture content of the fill at the time of compaction shall be such that when kneaded in the hand, the fill material will form a ball which does not readily separate. Water shall be added to the fill when needed. Uniform moisture distribution shall be obtained by disking or other methods approved by the government. The maximum moisture content is when conditions are too wet for efficient use of

NRCS-Missouri 252-6 3/2017 the hauling and compaction equipment. No additional payment will be made for the addition of water when needed.

(3) No separate payment will be made for this item. Compensation will be included in Bid Item 17, Excavation – External Levee Removal.