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View Enquiry: BE 2019-2011-065


Contract Details
Contract Number
2019-2011
Region
Central
Tender Owner
MTO Capital
Location
Part A - Highway 401 Westbound Core And Collector From Neilson Road to Warden Avenue Part B - Neilson Road, W-N/S and E-N/S Ramps
Highway
401
Length
5.36
QMS Declaration
Yes
Option A or B bidding
No
Contract Description
Grading, Drainage, Granular Base, Hot Mix Paving, Noise Barrier, Electrical, ATMS and Structures
Tender Instructions
Contract Dates
Tender Advertise
28-Mar-2019
Tender Opening
20-Jun-2019 at 03:00:00 PM
TRF Submission Opening
23-May-2019
TRF Submission Closing
14-Jun-2019 at 12:00:00 PM

Enquiry Details
Enquiry Date
10-Jun-2019 at 11:03:54 AM
Type
Other
Subject
NU Girders - Concrete Strength
Enquiry
Will the Ministry please clarify the need for 50 MPa min concrete strength at transfer for all NU girders? Please see Note 8 that defines this strength at transfer, as well as Note 7 which qualifies the class of concrete for precast girders as 50 MPa as well. Typically on these beams you would see 36-37 MPa at transfer, occasionally you would see transfer strength around 40-42 MPa.

Response Details
Response Status
Completed
Response Date
14-Jun-2019 at 04:53:59 PM
Response
The minimum concrete strength at transfer shall be 35MPa for the NU girders at Birchmount and Midland. The drawing notes have been revised. Please refer to Addendum #4 drawings.