20170315_AMEND_0002_SPECS.pdf

2 SOL-B-0001

AMEND 0002

The following modifications are being made to SECTION 00 73 05, the SUBMITTAL REGISTER, SECTION 35 20 23, and the DRAWINGS.

SECTION 00 73 05

a. PAGE 4. Delete Page 4 in its entirety, and substitute therefor revised and new Pages 4 and 4a, Amendment 0002, dated March 15, 2017, attached hereto.

SUBMITTAL REGISTER

b. PAGE 4. Delete Submittal Register Page 4 in its entirety, and substitute therefor revised Submittal Register Page 4, Amendment 0002, dated March 15, 2017, attached hereto.

SECTION 35 20 23

c. SECTION 35 20 23 TABLE OF CONTENTS. Delete Section 35 20 23 Table of Contents its entirety, and substitute therefor revised Section 35 20 23 Table of Contents, Amendment 0002, dated March 15, 2017, attached hereto.

d. PAGES 1, 2, and 4. Delete Pages 1, 2, and 4 in their entirety, and substitute therefor revised Pages 1, 2, and 4, Amendment 0002, dated March 15, 2017, attached hereto.

e. ATTACHMENT A. Insert new Attachment A immediately after Section 35 20 23 Page 4, Amendment 0002, dated March 15, 2017, attached hereto.

DRAWINGS (SUPERSEDED)

f. Revised drawings bearing the revision numbers and dates listed below are being issued with this Amendment. Such revised drawings supersede those of the same sheet identification numbers listed in the INDEX OF DRAWINGS included in the set of drawings furnished with Solicitation No.

W912EK-17-B-0001, dated February 22, 2017.

SHEET IDENTIFICATION NO. G-002, Revision Mark 1 dated March 15, 2017.

SHEET IDENTIFICATION NO. C-102, Revision Mark 1 dated March 15, 2017.

SHEET IDENTIFICATION NO. C-103, Revision Mark 1 dated March 15, 2017.

SHEET IDENTIFICATION NO. C-104, Revision Mark 1 dated March 15, 2017.

SHEET IDENTIFICATION NO. C-105, Revision Mark 1 dated March 15, 2017.

SHEET IDENTIFICATION NO. C-301, Revision Mark 1 dated March 15, 2017.

SHEET IDENTIFICATION NO. C-302, Revision Mark 1 dated March 15, 2017.

ATTACHMENTS: Section 00 73 05 Pages 4 and 4a; Submittal Register Page 4;

Section 35 20 23 Table of Contents; Section 35 20 23 Pages 1, 2, and 4; Section 35 20 23 Attachment A; G-002, C-102, C-103, C-104, C-105, C-301, and C-302.

Solicitation No. W912EK-17-B-0001

(d) Hydraulic Data

Water depth over the existing ground varies depending on Illinois and Sangamon River levels.

Daily and historic river gage readings for the Illinois River can be obtained from the U.S. Army Corps of Engineers web site as follows:

1. Go to http://www.rivergages.com

2. In Block "Choose an Option" Select Rock Island District or click on the Rock Island icon on the Map

2. In Block "Choose a Basin" Select Illinois River Basin

3. Scroll to locate Illinois River at Beardstown, IL

4. Review date range, stage or elevation, and choose output format

(plot, tabulate, tabulate yearly)

Daily and historic river gage readings for the Sangamon River can be obtained from the U.S. Army Corps of Engineers web site as follows:

1. Go to http://www.rivergages.com

2. In Block "Choose an Option" Select Rock Island District or click on the Rock Island icon on the Map

2. In Block "Choose a Basin" Select Sangamon River Basin

3. Scroll to locate Sangamon River near Chandlerville, IL

4. Review date range, stage or elevation, and choose output format

(plot, tabulate, tabulate yearly)

Historic river duration curves may be constructed using the data provided in the output. Additional information and support is available upon request.

(e) Additional Survey Data

Additional informational data is for the Contractor's information; the Government is not responsible for any interpretation of, or conclusion drawn from, the data or information by the Contractor.

(f) Soil Borings

These borings are representative of subsurface conditions at their respective locations and for their respective vertical reaches, localized variations of characteristics of the subsurface materials of this region are anticipated and, if encountered, such variations cannot be considered as differing materially within the purview of the Contract Clause DIFFERING SITE CONDITIONS. Groundwater elevations shown on these borings are those encountered at the time when the borings were taken and fluctuate due to factors such as rainfall or river stages.

(g) Environmental Permits

ATTACHMENT A - ILEPA Section 401 Water Quality Certification, ATTACHMENT B - USACE Section 404 Permit, and ATTACHMENT C - IDNR Floodplain Permit are attached at the end of this Section.

(h) Reference Photos

Provided as a separate file, reference photos are to be used for reference only. These photos are the property of the Government and

DOCUMENT 00 73 05 Page 4 AMEND. 0002

15 MAR 2017

are not to be used for any purpose other than that intended by the Contract.

DOCUMENT 00 73 05 Page AMEND. 0002

15 MAR 2017

SUBMITTAL FORM,Jan 96 PREVIOUS EDITION IS OBSOLETE PAGE 4 OF 4 PAGES

Hager Slough Special Drainage District PL84-99

33 46 16 SD-04 Samples 2.2Filter Fabric 2.1Pipe for Subdrains

SD-07 Certificates 2.2Filter Fabric 2.1Pipe for Subdrains

35 20 23 SD-01 Preconstruction Submittals GECDNFlood Contingency Plan

SD-02 Shop Drawings 3.2.4.2Pipeline

SUBMITTAL REGISTER

CONTRACT NO.

TITLE AND LOCATION CONTRACTOR

CONTRACTOR:

SCHEDULE DATES

CONTRACTOR

ACTION

APPROVING AUTHORITY

A C T I V I T Y

N O

T R A N S M I T T A L

N O

S P E C

S E C T

DESCRIPTION

ITEM SUBMITTED

P A R A G R A P H

C L A S S I F I C A T I O N

G O V T

O R

A E

R E V W

R SUBMIT

APPROVAL

NEEDED

BY

MATERIAL

NEEDED

BY

A C T I O N

C O D E

DATE

OF

ACTION

DATE FWD

TO APPR

AUTH/

DATE RCD

FROM

CONTR

DATE FWD

TO OTHER

REVIEWER

DATE RCD

FROM OTH

REVIEWER

A C T I O N

C O D E

DATE

OF

ACTION

MAILED

TO

CONTR/

DATE RCD

FRM APPR

AUTH REMARKS

(a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) (q) (r)

AMEND. 0002

15 MAR 2017

SECTION TABLE OF CONTENTS

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 20 23

DREDGING

PART 1 GENERAL

1.1 DEFINITION

1.2 SUBMITTALS

1.3 MATERIAL TO BE REMOVED

1.3.1 Hard Material

1.4 ARTIFICIAL OBSTRUCTIONS

1.5 QUANTITY OF MATERIAL

1.6 SIDE SLOPES

1.7 PERMIT

1.8 ENVIRONMENTAL PROTECTION REQUIREMENTS

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 INSPECTION

3.2 CONDUCT OF DREDGING WORK

3.2.1 Lights

3.2.2 Ranges, Gages, and Lines

3.2.3 Plant

3.2.4 Placement of Excavated Material

3.2.4.1 Placement in Indicated Fill Areas

3.2.4.2 Pipeline

3.2.5 Navigation Warnings

3.2.6 Method of Communication

3.2.7 Salvaged Material

3.2.8 Safety of Structures

3.2.9 Plant Set Up

3.2.10 Plant Removal

3.2.11 Dredge Size

ATTACHMENTS:

ATTACHMENT A - Sample Flood Contingency Plan

-- End of Section Table of Contents --

SECTION TABLE OF CONTENTS 35 20 23 Page 1

15 MAR 2017

SECTION 35 20 23

DREDGING

PART 1 GENERAL

1.1 DEFINITION

Hard material is defined as material requiring the use of special equipment for economical removal, and includes boulders or fragments too large to be removed in one piece by the dredge.

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Flood Contingency Plan; G ECDN

SD-02 Shop Drawings

Pipeline

Indicate pipeline location and installation details. Submit drawings of surveys during progress of work by soundings or sweepings.

1.3 MATERIAL TO BE REMOVED

The material to be removed is sand.

1.3.1 Hard Material

The removal of hard material is not included. Should the Government direct in writing that hard material be removed, the work shall be performed and an adjustment in the contract price or time for completion, or both, will be made in accordance with "FAR 52.236-2, Differing Site Conditions." If hard material is to be removed, blasting will not be permitted.

1.4 ARTIFICIAL OBSTRUCTIONS

Except as indicated, the Government has no knowledge of cables, pipes, or other artificial obstructions or of any wrecks, wreckage, or other material that would necessitate the use of explosives or the employment of additional equipment for economical removal. If actual conditions differ from those stated or shown, or both, an adjustment in contract price or time for completion, or both, will be made in accordance with "FAR 52.236-2, Differing Site Conditions."

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1.5 QUANTITY OF MATERIAL

The total estimated amount of material to be removed from within the specified limits, including side slopes, but excluding overdepths, is 80,000 cubic yards. The estimated quantity for bidding purposes and for application of the "FAR 52.212-11, Variation in Estimated Quantity" shall be 80,000 cubic yards, which is the total quantity, including overdepth.

The quantities listed are estimates only. Within the limits of available funds, complete the work specified whether the quantities involved are greater or less than those estimated.

1.6 SIDE SLOPES

Dredging on side slopes shall follow, as closely as practicable, the lines indicated or specified. A one foot allowance will be made for dredging beyond the indicated or specified side slopes, except as provided herein.

1.7 PERMIT

The Contractor shall comply with conditions and requirements of the Corps of Engineers Permit and other State or Federal permits. The Contracting Officer will secure the permit for dredging and placement of material as indicated. Permits are attached to Section 00 73 05 SPECIAL CONTRACT

REQUIREMENTS.

1.8 ENVIRONMENTAL PROTECTION REQUIREMENTS

Provide and maintain during the life of the contract, environmental protective measures. Also, provide environmental protective measures required to correct conditions, such as oil spills or debris, that occur during the dredging operations. Comply with Federal, State, and local regulations pertaining to water, air, and noise pollution.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.1 INSPECTION

Inspect the work, keep records of work performed, and ensure that gages, targets, ranges, and other markers are in place and usable for the intended purpose. Furnish, at the request of the Contracting Officer, boats, boatmen, laborers, and materials necessary for inspecting, supervising, and surveying the work. When required, provide transportation for the Contracting Officer and inspectors to and from the disposal area and between the dredging plant and adjacent points on shore.

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3.2.7 Salvaged Material

Anchors, chains, firearms, and other articles of value, which are brought to the surface during dredging operations, shall remain or become the property of the Government and shall be deposited on shore at a convenient location near the site of the work, as directed.

3.2.8 Safety of Structures

The prosecution of work shall ensure the stability of levees and other structures lying on or adjacent to the site of the work, insofar as structures may be jeopardized by dredging operations. Repair damage resulting from dredging operations, insofar as such damage may be caused by variation in locations or depth of dredging, or both, from that indicated or permitted under the contract.

3.2.9 Plant Set Up

There is no access to this site from the Illinois River. The Contractor may access the site from the Clear Lake or Chandlerville boat ramps as indicated, or by using a crane to lift the dredge over the levee at the project site or at Clear Lake boat ramp. Verify all access requirements.

The levee may be altered with written consent from Clear Lake or Hager Slough Levee Districts if all alterations are above the ordinary high water line. A flood contingency plan to shore up any levee alterations during a flood shall be submitted and approved by USACE and the levee district prior to any alteration being performed. ATTACHMENT A - Sample Flood Contingency Plan is located at the end of this Section.

3.2.10 Plant Removal

Upon completion of the work, promptly remove plant, including ranges, buoys, piles, and other markers or obstructions.

3.2.11 Dredge Size

Dredge shall be of adequate size to dredge all required materials in one construction season (1 July to October 31, inclusive) working 24 hours a day, 7 days a week, without causing damage to the existing levee.

-- End of Section --

SECTION 35 20 23 Page 4 AMEND. 0002

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Sample Flood Contingency Plan

Executive Summary

The city of XXXX has developed the plan to mitigate risk of flooding while it permanent flood protection is breached during the demolition of the XXXX. The city plans to use sand filled hesco baskets for construction of the temporary wall.

Complete to date:

The engineering and design Awarding of construction contract to complete construction.

Procurement of temporary Flood Wall Material (HESCO baskets) and

Demonstration of temporary floodwall construction.

Schedule Summary

Existing Floodwall start demolition xxx mar 2009 Construction of New Floodwall Duration XXX 2009 New Flood wall Completed XXXX 2009

Action Plan The City Has Developed and Action Plan to assemble a temporary Flood wall in the event of a flood.

Due to forecasting and the nature of upper Mississippi River, the city has more than a few days notice prior to a flood event. The City monitors current and predicted water levels via xxx. Mr. XXX will be responsible for monitoring on a Daily basis. His/her contact information is XXX. As a redundancy Mr. XXX will perform the same duties to ensure that the city can take action at anytime. The city also has a good working relationship with the district which will enhance understanding of water levels. The City will use in house crews to complete the temporary flood wall construction. The City has a crew of XXX people with xxxx construction equipment. This crew is more than capable of completing the temporary wall in XXX days. The hesco barriers are located at City facilities. Sand bags, plastic and material are on hand in the event they are needed. The sand is locally available.

The city has established Action levels in which construction of the Temporary flood wall will be initiated.

When River levels or forecasted water levels are predicted to reach elevation XXX action level one will be initiated. The action will commence the construction of xxx Rows of Hesco Barriers. It estimated that this will take about xxx days. The will provide a level of protection to elevation XXX, an xxxx year event .

Level 2 action levels if required.

ATTACHMENT A TO SECTION 35 20 23

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While water is against the hesco barriers the perforce of the temporary flood wall be monitored by the City Engineer for performance and treatment of any issue that arise.

The wall be monitored continuously and while water are against the barriers. The manufacture of the temporary floodwall has been and will continue to proved technical advice. He will be made available in the event a flood water against the temporary wall.

Hydraulic summary

The 100 year flood level is xxx this places xxx feet of water on the temporary flood wall.

The top of the permanent protection is about a 200 year event. Current NWS prediction estimates that the likely hood of water requiring the installation of the temporary flood wall is about 15%. Historically floods have taken place in April through October which coincides with the regions construction season.

ATTACHMENT A TO SECTION 35 20 23

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