Drainage and Hydrology Engineering

No. / Phase/Task / Methodology / Deliverables / Reference Manuals /

Independent Tech. Reviews

/ Generic Q.C. Staff Assigned
Procedure / Document
1. / Familiarisation
Design criteria, Establish project requirements / Review RFP/RFQ submission, past reports, work by other agencies, Watershed Reports, Site data / maps available,
Any existing drawings, History of any existing structures, including rehabilitation measures, etc. / Sufficiency of existing information, Requirements for additional Data. / Review Check List / Initials / Project Manager, Engineer
2.1 / Data Collection / Watershed Reports, Flow Estimates, watershed / topographic maps, Site Survey Plans, known Environmental constraints, Federal Navigational requirements, past structural foundation reports, Highway geometric requirements, etc. / Review of past data / information
Request for additional data (if required) / MTO Drainage Management Manual 1997 / Review Check List
Establish sufficiency of data / recommendations / Initials / Project Manager, Engineer, Technicians
2.2 / Field Investigations / Site Specific Engineering and Legal Surveys and Plans. Stream bed Profile, High water / High Ice Marks, Site Conditions and Constraints, Stream bank conditions, Property lines, utility corridors, Field inspection of existing structures upstream / downstream. / Field Surveys and Plans,
Other related survey data / information / MTO Drainage Management Manual 1997
-Occupational Health and Safety Manual / Review Check List. / Initials / Engineer, Technicians
3.1 / Stakeholder Consultation (MTO, other agencies, public, etc.) / Correspondence, meetings,
Referrals (Coservation Authority, MNR, DFO, others) / -Minutes
-Records
-Correspondence
-Approvals / Ensure adequate consultation / approvals obtained / Initials / Project Manager
4.1 / Conceptual design / Assess various options for highway darinage, stormwater management measures, water crossing(s), etc., in keeping with hydrologic / hydraulic considerations, highway / structure horizontal and vertical alignments, traffic safety, cost, property constraints, aesthetics, environmental requirements, other constraints. / Conceptual Layout / - MTO Drainage Management Manual 1997
-Bridge code
- MTO Geometric Design Manual / Check to ensure that options are assessed against requirements. / Initial Activity check list / Engineer, Technician
4.2 / Recommend
Design Alternative(s) / -Evaluate all viable alternatives
-Select preferred alternative
-Prepare documentation. / Drainage / Hydrology Report Report / Documentation
Design criteria
Preliminary Layout / Drawing / - MTO Drainage Management Manual 1997
-Bridge code
- MTO Geometric Design Manual / -Ensure that MTO and external requirements are addressed / met. / -Initials
-Activity Check List / Project Manager, Engineer
Technician
4.3 / Preliminary Design / Develop Preliminary Layout
In keeping with requirements (highway alignment, environmental requirement, aesthetics, property constraints, cost, etc.) / Layout / Drawings / - MTO Drainage Management Manual 1997
-Bridge code
- MTO Geometric Design Manual / Ensure that layout meets requirements / Initials Activity Check List / Engineer, Technician
4.4 / External Agency Approval / Correspondence, meeting / Correspondence, Minutes, Approval documents / Ensure all required approvals obtained / Initials Activity Check List / Project Manager
5.1 / Technical Reports / Calculation Sheets
Drainage Report, Hydrology Report, Drainage / Hydrology Design Report(s)s / - MTO Drainage Management Manual 1997
-Bridge code
- MTO Geometric Design Manual / Check List / Initials Activity Check List / Project manager, Engineer, Technician
Milestone Quality Review No. 1 Audit Memo/Report Review Procedures Memo/Report
& Checklists
6.1 / Detailed Design Assessments / -Detailed Hydrologic / Hydraulic modelling and assessments. Refining drainage structure / water crossing requirements, location, dimensions, shape, elevations, skew, etc. / -Drawings
-Calculations / Analysis sheets / - MTO Drainage Management Manual 1997
-Bridge code
- MTO Geometric Design Manual / Check Design Calculations for accuracy.
Ensure that all requirements are addressed. / Initials
Activity Check List / Design Engineer
6.2 / External Agency Approval / Correspondence, meeting / Correspondence, Minutes, Approval documents / Ensure all required approvals obtained / Initials Activity Check List / Project Manager
Engineer
6.3 / Turn Over for
Inclusion in Highway / Structural Design / RFP/RFQ Requirements / Contract Drawings
Construction Specifications / MTO Directive for design turn over / Check list
Check all RFP/RFQ requirements complete / Activity check list / Project Manager,
Engineer, Technician
Milestone Quality Review No. 2 Audit Memo/Report Review Procedures Memo/Report
& Checklists