NPS_Jewel_Cave_Amendment__1_040115.docx

AMENDMENT #0001

TO DOCUMENTS TITLED: Jewel Cave Expand Exhibit Space and Bookstore 11149 US Highway 16 B-12 Custer, South Dakota 57730

DATED: 04/01/2015

The Contract Documents for the above referenced project and the work covered thereby are modified as described herein.

DRAWING REVISIONS:

1. Sheet S001 Structural General Notes Part VII – Special Inspections

a. Revise note to read: “Contractor shall provide testing services in accordance with the International Building Code for the following items:”

2. Sheet S001 Structural General Notes Part II – Foundation

a. A.1 and A.2 of this section are deleted.

3. Sheet S111 Foundation Plan

a. Refer to footing at exterior doors between grid line G and H. Add the following note: “Interface of the new footing and existing wall shall be field verified based on existing construction and final grade elevations. The wall footing and slab reinforcement shall be the same as shown in 1/S301. The bottom of footing shall be 3’-6” below final grade. The slab on grade shall continue past the building shell to form the walkoff stoop. The slab extension beyond the building shall be 3’-0” off grid line 1 and 2’-3” (in lieu of 1’-7”) off grid line 3. Walkoff stoop slab shall slope to drain toward the exterior.”

b. Modify note 11 as follows: “New 3 ½”x11 7/8” 2.0E Redlam LVL or approved equivalent”. Treated LVLs are not required as they are enclosed in the floor soffit.

4. Sheet S121 Roof Framing Plan

a. Add the following note: “All steel beams are sized W12x35.”

5. Sheet A111 Floor Plan: Add the following keyed note:

a. “A13 Provide 5 - 2’x2’ removable sections of floor system. Location of access locations to be coordinated in the field.”

b. Plan Note: Fire retardant wood framing and exterior sheathing is required in Type IIIB exterior wall construction. At Contractor’s discretion, 22 gauge x 3 5/8” galvanized metal framing may be used in lieu of 2x4 wood framing. If metal studs are used, exterior gypsum board may be provided in lieu of plywood.

c. Plan Note: Provide corner guards at all outside corners of new construction. Corner guards are to be 4’-0” high.

6. Sheet A121 Reflected Ceiling Plan: Delete following keyed note:

a. Delete General Note 3

7. Sheet A601 Window Types: Remove quantities from window types. Refer to building elevations for quantities of each window type.

a. No operable windows are provided.

8. Sheet A511 Details

a. Refer to detail A4. Add the following notes to dimensional lumber framing for soffit:

i. “horizontal 2x4 members at 16” o.c.”

ii. “vertical knee walls to run continuous and consist of 2x4 plate and sill with vertical 2x4’s at 24” o.c. Vertical knee walls to be spaced a maximum of 4’-0” on center.

iii. Refer to note 3b above for framing options.

9. Sheet DE111

a. Delete note #5 at existing gift shop. Note #5 shall read “Not Used.”

b. Add the following note: “6. Remove two existing light bollards at covered porch.”

10. Sheet M111

a. Revise General Note #6 to read: “6. Base bid shall provide below slab FRP duct and associated SA grilles. Provide LP gas branch tap from the main to below the expansion floor structure, capped for future. Provide thermostat backbox with blank cover plate and conduit from the back box to below the expansion floor structure for future control wiring.”

b. Add the following General Note #8: “8. Bid Alternate #1 shall provide HVAC Unit RTU-1 and the associated duct work below the expansion floor structure and SA/RA grilles. Provide required LP gas piping and electrical associated with HVAC Unit RTU-1. Provide thermostat and thermostat control wiring.”

11. Sheet E111

a. Delete light fixture A, B, and X at the existing gift shop. No work required. Note #1 shall read “Not Used.”

12. Sheet E311 Light Fixture Schedule

a. Under manufacturer column for all fixtures, delete the phrase “Pre-bid approved equal” and insert the phrase “approved equal”.

SPECIFICATION REVISIONS:

1. Section 015000 Paragraph 3.2, I, 1. Delete requirements for temporary phone lines.

2. Section 015000 Paragraph 2.1 B&C. Orange construction fencing is acceptable.

3. Section 011100 Paragraph 1.7 A. Delete requirements for soils investigation report.

4. Section 061000 Rough Carpentry

a. Modify paragraph 2.6A and B to indicate 5/8” nominal thickness in lieu of ¾”.

5. Section 083113 Access Doors and Frames

a. Delete this section in its entirety.

6. Section 084113 Aluminum-Framed Entrances And Storefronts:

a. Paragraph 1.7A.2: Change special Installer warranty to 2 years in lieu of 10 years.

b. Paragraph 1.7B.2: Change special finish warranty to 5 years in lieu of 10 years.

c. Paragraph 2.1A: Delete requirement for delegated design.

d. Paragraph 2.4C: Aluminum finish to match existing bronze color.

e. Paragraph 2.10A: Provide AA-M12C22A41, Class I, 0.018 mm anodized aluminum finish in lieu of Class II.

7. Section 088000 Glazing:

a. Paragraph 2.8A, Glass Type GL-1:

i. Change glass color to bronze as required to match existing.

ii. Change visible light transmittance to 40% minimum

b. Paragraph 2.8B, Glass Type GL-2:

i. Change glass color to bronze as required to match existing.

ii. Change visible light transmittance to 40% minimum

c. Provide glass type GL-1 where required by code.

Q&A

1. Ref: A3/A321 – Can the NPS provide a detail of how the pre-engineer trusses would connect to the roof structure? Refer to 3/S401 for the connection between the LVL’s and steel roof structure.

2. Ref: A1/A321 & A4/A511 – Can the NPS provide further details/instruction for the construction of the chase under the existing wood deck structure? Wood framing is shown on A4/511. See attached amendment wording for clarification regarding spacing of the wood framing.

3. Ref: Note 18, Sheet S111 – Does the new concrete column (7/S301) receive any finishes or brick? No brick is desired at these 2 locations.

4. Foundation Insulation is not shown on the foundation drawings but is shown on the architectural sheets A321 detail A5. Is foundation insulation required, and if so, where is it to be installed and what are the specifications for it? Foundation insulation is required as shown on Architectural drawings.

5. Is there to be any door security rough-in installed at either of the two exterior doors with this project?

We are not putting in a security system on the doors. The rest of the existing building doesn't have them.

6. Do you have any records of what the existing carpet is that we are trying to match? Existing carpet spec sheet provided as attachment.

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