J.24 Thurman Amendment for changes to specifications and drawings 20180731.pdf

Thurman Amendment 0002 for changes to specifications & drawings and additional attachments Changes to specifications:

1. 01.11.00 paragraph 1.5.B.5 (p. 38/434) – “flexible base” has been replaced with “Aggregate Road Surfacing”

2. 01.11.00 p. 2 paragraph 1.5.B. (p. 38/434) - Added subparagraph 8. “Construction of reinforced concrete inlet flumes”

3. 01.11.00 para. 3.4 - added subparagraph D. – “Contractor shall coordinate with mitigation contractor. Sediment removal of vegetated islands shall be in coordination with the mitigation contractor. Mitigation of the islands will be done by mitigation contractor during December 2018 – January 15, 2019. Contractor will have to work around these areas if necessary during this time frame.”

4. 32.15.00 Paragraph 3.5.B – removed “with a compliance confirmed spreader”

5. 32.32.13 paragraph 2.2.C. – revised adding “with an AOS of 70 Sieve maximum” to the end of paragraph.

Changes to drawings

1. Page 10 reference to “flexbase paved area” replaced with “Aggregate Road Surfacing”

2. Page 13 reference to “flexbase paved area” replaced with “Aggregate Road surfacing”

3. Page 23 Weep Hole Notes revised

4. Sheet 24 – Corrected proper capitalization and reference in note 8. For SP-66(04): American

Concrete Institute (ACI) Detailing Manual-2004."

5. Sheet 26 Section A - #5 bars revised to #6 bars, to be spaced at 8” each face

6. Sheet 28 Note 3 revised to:

Removal of the vegetated islands will be in coordination with the Mitigation contractor.

Sediment removal of the islands timing will occur so that the mitigation contractor can perform necessary Mitigation during December – January 15th. Contractor will have to work around these areas if necessary during this time frame.

7. Sheet 28 notes 3.1, 3.2, and 3.3 deleted

8. Revised drawings bar scales and graphic scales throughout

9. Revised detail numbers and letters throughout

Additional Attachments:

1. Figures 3. And 4. Of Mitigation Statement of Work

Revisions to Amendment 0001 page 3 of 4

1. On page 28 of the project plans, specifically the Sediment Removal Notes – Note 3; describes handling existing vegetation on the vegetated islands within the river channel. This note discusses the removal and transplanting of willows and cottonwoods. There is not a specification section for this activity. Is the Contractor responsible for completing the transplanting of vegetation (i.e. willows and cottonwoods, etc.)? If so, how is this work measured (quantified)? How will this work be paid for? Please provide clarification.

Note 3 has been revised. Notes 3.1, 3.2, and 3.3 have been deleted.

2. Regarding Specification - Aggregate Road Surfacing, Section 32.15.00 - Part 3.5 Installation, Paragraph B – “Place the material on the prepared subgrade or subbase in layers of uniform thickness with a compliance confirmed spreader.” Can you please provide additional information on what would be considered a “compliance confirmed spreader”?

Specification Section will be revised. There is no requirement for a specific type of spreader.

4. Similar to the above described question – There is not a CLIN for the Galvanized Steel Angle. Is this an oversight, or should this be considered as incidental to CLIN 004 Concrete End Walls?

This item is incidental to CLIN 004 Concrete End Walls.

6. The unit for CLINs 002 and 006 show a unit of “CD”. Not sure of this unit. Should this be Cubic Yards or “CY”?

Unit to be changed to CY via amendment.