Amendment 6: Answers to Questions 0006

140P2026R0101 /
Amendment 06/
10.13.2026
Question No.

GRCA 257282, Replace South Rim Wastewater Treatment Plant

Sheet or
Reference

Question

Response

Ref. 25S1020 Process Tanks Structural Lower Level Plan; What size are the (2) columns 10’- The columns are W12x45. Callout provided by markupon drawing 25S1020 (attached to Addendum 3). 0’ North of Line 1?
Ref. 1/25S5001 Moment Connection; The perpendicular beam connections to the column New connection detail and callouts provided for the beam to column web connection. Markups provided on drawings 25S1040 and web are called out as 0512-020. These beams are not erectable due to the presence of the 3/8” 25S5001 (attached to Addendum 3). stiffeners above and below the beam connection. Please advise. Ref. 1/87S1030 “Armor Angles”; What size are the angles? Size and spacing of the headed Use SST L3x3x¼. Markup provided for drawing 87S1030 (attached to Addendum 3). studs?
Ref. 09 90 00 Painting and Coatings; We assume all structural steel is to be shop primed with Steel roof trusses and monorails shall be shop primed with System No. 4 Exposed Metal – Highly Corrosive. All other structural steel System No. 5 Exposed Metal – Mildly Corrosive other than the steel roof trusses which are to shall be shop primed with System No. 5 Exposed Metal – Mildly Corrosive. Refer to Addendum 3. be shop primed with System No. 4 Exposed Metal – Highly Corrosive. Please confirm. Do to large file size, CAD files will be provided after award. Are CAD (electronic) files available for the Water Treatment Plant site grading plans ( original ground topography, final grade, top of pavement etc.)? Are CAD (electronic files) available for the Access Road? Are CAD (electronic) files available for underground pipe and utilities? If so, please provide.
The PDF file of the specifications is "protected" making it difficult to use. Please provide an Yes, Refer to the zip file called "GRCA_Final_Individual_Specs". un-protected version for contractor use.
Regarding the Contractor Laydown Area, please provide location of Contractor Laydown Area (8-acre site). Confirm if the site has crushed aggregate surfacing, fences and gates already installed by others. Is temporary power, water, SS available on the site? 01 50 00 Temp Facilities states Potable water service is available for use. Where is the water There is a potable water line on sheet 07Y1000 that is distinguished with a "W" linetype on the sheet in the Northeast corner of the site.