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View Enquiry: BE 2014-2002-057


Contract Details
Contract Number
2014-2002
Region
Central
Tender Owner
MTO Capital
Location
N\A
Highway
401
Length
0
QMS Declaration
Yes
Option A or B bidding
No
Contract Description
DESIGN BUILD - Structural Bridge Replacement
Tender Instructions
EXPRESSION of INTEREST must be received electronically as prescribed in the Expression of Interest document by 1:30:00 P.M. local time on: August 19, 2014.
Contract Dates
Tender Advertise
16-Jul-2014
Tender Opening
11-Dec-2014 at 01:30:00 PM
TRF Submission Opening
13-Nov-2014
TRF Submission Closing
05-Dec-2014 at 12:00:00 PM

Enquiry Details
Enquiry Date
25-Nov-2014 at 08:41:00 AM
Type
Other
Subject
Median Crossover for 16 Mile Creek Detour Staging
Enquiry
The construction staging recommended in the Preliminary Design Report (PDR) by AECOM has Stage 3 EB detour crossing the existing Hwy 401 median at a super-elevated portion of the highway near 16+300. In order to comply with the Geometric Design Standards for Ontario Highways the maximum algebraic difference in cross fall for this design speed is 4% (Table D4-3) on the median crossover. It is not possible to comply with this requirement given the median crossover location recommended in the PDR. The location of the crossover needs relocated east to where Hwy 401 is tangent – a distance of several hundreds of meters. Please provide an extension of time so the full scope of this change can be assessed and accounted for in this bid submission. After a high level review of this change it is noted that this will add significant grading and asphalt and may impact 2 existing concrete culverts. Time is also required to confirm how the extended detour will match into the detour planned for the replacement of the Appleby structure and how best to coordinate the construction of the 3 structures given the close proximity of the detour routes.

Response Details
Response Status
Completed
Response Date
28-Nov-2014 at 02:35:15 PM
Response
Asphalt padding would be required to provide the median crossover in the location recommended in the PDR. Alternate staging configurations will also be accepted provided that they comply with the RFP requirements. The RFP Closing has been extended to December 11, 2014. See RFP Addendum #3.