WOLF CREEK BRIDGE REPLACEMENT site visit.docx

NOTES FROM PREBID MEETING November 9, 2009

· Reviewed specifications and drawings

· Any required work for which there is not a pay item is subsidiary to the other pay items, for example – warning signs and mobilization.

· Road shall be closed during construction

· Provide tarps or similar to catch debris and paint

· All material specified for removal shall become property of the contractor and shall be removed from Government land.

· Concrete shall have a 28 day strength of 4000 psi

· Concrete curbs shall be poured monolithically with the deck, no joints

· Testing of concrete (slump, air, & compressive strength) is required

· Replace all bearings; new bearings shall be neoprene, laminated elastomeric durometer hardness Grade 2 or higher

· Flat washers, anchor bolts, nuts, & washers shall be stainless steel, ASTM A 276, type 304

· Stud shear connectors shall meet the requirements of AASHTO M 169 (ASTM A 108), Grades C-1010 through C1020 (in accordance with ASTM A 29) & the requirements of supplemental specification 717.05_0804.

· Cover sheet suggests the use of stay-in-place deck form.

· Contract time is 120 days

· Submit bids to EROC in Atlanta by 2:00 p.m. December 7, 2009.

· Concrete reinforcement bars are not galvanized or epoxy coated.

The following items raised questions and will be answered by an additional amendment. The Date for submission of bids is extended to DECEMBER 7, 2009.

Items to be addressed in an amendment:

· Are stay-in-place forms required?

· Gradation of roadway aggregate

· Specify different paint system than that in supplemental specifications

· Provide detail showing how W10x54 beam welded to the bottom of the side beam meets the main girder

· Determination of whether or not the existing paint contains lead.