May 15, 2017 To:
Plan Holders for Improvements to the Provo Airport Provo, Utah EDA Project No. 05-01-065625 Provo City Bid No. Provoai20171518
Transmitted herewith is Addendum No. 2 to the Issued for Bid Contract Documents, Specifications and Plans dated April 18, 2017 for Improvements to the Provo Airport. Schedule 1 (EDA) – Apron and Taxilanes 1 & 2 Earthwork, Drainage, Paving and Fencing Schedule 2 (Non-EDA) – Taxilane 3 and Southeast Apron Earthwork and Paving Sincerely, Jviation, Inc.
Kirt J McDaniel, P.E. Project Manager
Addendum No. 2 May 15, 2017 To: Contract Documents, Specifications, and Plans EDA Project No. 05-01-05625 Provo City Bid No. Provoai20171518 Dated: April 18, 2017
ADDENDUM NO. 2 TO CONTRACT DOCUMENTS, SPECIFICATIONS AND PLANS FOR IMPROVEMENTS TO THE PROVO AIRPORT PROVO, UTAH EDA PROJECT NO. 05-01-05625 Provo City Bid No. Provoai20171518
To All Bidders: You are requested to make all changes and/or additions contained in this addendum to the Bidding Documents. Failure to acknowledge this Addendum in Proposal shall result in rejection of bid. Bidders are informed that the above referenced Contract Documents, Specifications and Plans are modified as follows as of May 15, 2017: 1.
SPECIFICATIONS Item P-310 – Replace the Geogrid Property Values with the following table:
GEOGRID PROPERTY VALUES 1
Geogrid Properties
Test Method
Aperture Size
Nominal Dimensions
Rib Thickness
Nominal Dimensions
Type 1 Perpendicular Machine to Machine Direction MD Direction CMD Minimum 0.8 Minimum 0.8 inch inch Maximum 2.0 Maximum 2.0 inch inch Minimum 0.03 Minimum 0.03 inch inch
ASTM D6637 2
Minimum 270 lb/ft
Minimum 380 lb/ft
Minimum 410 lb/ft
Minimum 590 lb/ft
ASTM D 6637
Minimum 530 lb/ft
Minimum 700 lb/ft
Minimum 800 lb/ft
Minimum 1,320 lb/ft
ASTM D 5732
Min. 250,000 mg-cm
NA
Min. 750,000 mg-cm
NA
GRI-GG2
90%
90%
90%
90%
EPA 9090 Immersion Testing
100%
100%
100%
100%
Tensile Strength at 2% Strain Tensile Strength at 5% Strain Flexural Stiffness Junction Efficiency Resistance to Long Term Degradation
Type 2 Perpendicular Machine to Machine Direction MD Direction CMD Minimum 0.8 Minimum 0.8 inch inch Maximum 2.0 Maximum 2.0 inch inch Minimum Minimum 0.05 inch 0.05 inch
Unless indicated otherwise, values shown are minimum average roll values determined in accordance with ASTM D-4759. 1
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Addendum No. 2 May 15, 2017 To: Contract Documents, Specifications, and Plans EDA Project No. 05-01-05625 Provo City Bid No. Provoai20171518 Dated: April 18, 2017
The Junction Strength was removed from the table and the Flexural Rigidity replaced with Flexural Stiffness with ASTM D 5732 as the test method. Justification: The junction strength is no longer a required geogrid property and the flexural rigidity property has been replaced with flexural stiffness and a different test method. The revised Item P-310 Geosynthetic Products specification will be included with the Issued for Construction Contract Documents and Specifications.
** END OF ADDENDUM NO. 2 **
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