Case Study Overview
How Rimkus Delivered Construction Observation for Driveway Asphalt Rehabilitation, Concrete Sidewalk and Stair Works, and Site Grading at an Occupied Residential Housing Property in Kitchener, Ontario
A Rimkus Pavement Engineering engagement delivered construction observation services for a 2020 driveway pavement rehabilitation and concrete works program at a residential housing property in Kitchener, Ontario on behalf of Victoria Park Community Homes. The program addressed end-of-life asphalt across residential unit driveways, concrete sidewalk and stair works, and site grading improvements. Rimkus conducted 3 observation visits during active construction from June 19 through June 29, 2020, reviewed asphalt delivery tickets at the point of placement, and conducted a final walkthrough on July 9, 2020 with the client and contractor to document outstanding deficiencies.
Who this is for: Residential housing providers, non-profit housing corporations, municipal housing authorities, condominium corporations, and property managers planning driveway pavement rehabilitation, concrete sidewalk or stair works, or site grading improvements on occupied residential properties requiring independent construction observation, material verification, and documented construction records for warranty, dispute avoidance, and asset management purposes.
What We Did
- Provided construction observation for a driveway pavement rehabilitation and concrete works program: existing asphalt removal, granular base preparation, HL8 base course and HL3 surface course asphalt placement, concrete sidewalk works, concrete stair and platform removal, and site grading.
- Conducted 3 observation visits during active construction (June 19, June 22, and June 29, 2020) and a final walkthrough on July 9, 2020 with the client, contractor, and Rimkus representative.
- Reviewed asphalt delivery tickets at the point of placement at each asphalt lift to verify material quality and specification compliance, and directed corrective actions for deficiencies identified during construction and at the final walkthrough.
How We Helped
- Identified and directed resolution of granular base moisture deficiency during initial mobilization: the granular base appeared dry and the contractor and client were advised to moisten and compact the granular material before base asphalt placement proceeded, protecting the long-term performance of the rehabilitated pavement.
- Identified contractor damage to a concrete sidewalk during surface course asphalt placement, notified the client at OR3, and documented the deficiency at the final walkthrough with a formal direction for repair, providing Victoria Park Community Homes with a written record of the issue and the contractor’s commitment to resolve it.
- Confirmed asphalt material compliance at each lift through delivery ticket review and verified granular base compaction and grading at both the base and surface course stages before asphalt placement proceeded.
|
SERVICE LINE |
SECTOR |
LOCATION |
ENGAGEMENT LEAD |
|---|---|---|---|
|
Pavement Engineering |
Residential Housing / Non-Profit Housing |
Kitchener, Ontario |
Aravind Perumalsamy, M.Eng., P.Eng., PMP®, LEED GA — Rimkus BES, Canada |
|
4 |
2 |
1 |
3 |
|---|---|---|---|
|
OBSERVATION REPORTS |
ASPHALT LIFTS |
FINAL WALKTHROUGH |
DEFICIENCIES DIRECTED |
What Was the Challenge? Driveway Rehabilitation at an Occupied Residential Housing Property
A residential housing property in Kitchener, Ontario managed by Victoria Park Community Homes required pavement rehabilitation and concrete works across residential unit driveways. The existing asphalt had reached the end of its useful life, concrete sidewalk and stair areas required reconstruction, and site grading improvements were needed to direct drainage toward the city gutter.
The program required independent construction observation to verify that specified materials were placed correctly, that granular base preparation met compaction standards before asphalt was placed, and that any deficiencies identified during construction were formally documented and directed for resolution.
Victoria Park Community Homes retained Rimkus to provide independent construction observation from mobilization through final walkthrough.
“Independent construction observation on a residential driveway rehabilitation program provides the housing provider with documented evidence of material compliance at every lift and a formal record of any deficiencies identified during construction. On this project, 4 observation reports over three weeks gave Victoria Park Community Homes exactly that.” – Aravind Perumalsamy, Practice Leader, Pavement Engineering
Technical Scope: Systems Addressed
The 2020 rehabilitation program addressed the following systems at the residential housing property in Kitchener:
- Asphalt Driveway Rehabilitation: Removal of existing asphalt across residential unit driveways; granular base preparation and grading to drain drainage toward city gutter; HL8 base course asphalt (50 mm depth) placement; HL3 surface course asphalt placement; asphalt delivery ticket review at each lift; granular base compaction and grading verified before asphalt placement.
- Concrete Sidewalk Works: Concrete sidewalk construction as part of the site works program; concrete sidewalk damage by contractor identified and directed for repair.
- Concrete Stair and Platform Works: Removal of existing concrete stairs and platforms at residential unit driveways as part of the scope of rehabilitation work; stair support works at unit frontages.
- Site Grading: Grading of driveways and site areas to direct drainage toward city drainage gutters, with grading verified at time of each observation visit.
- Traffic Management: Reflective construction cones, caution tape, and signage maintained throughout construction to block off working areas from vehicle and pedestrian traffic.
Note on Methods and Limitations
Observation reports (OR) are intended to comment only on operations and items that were visible or being undertaken at the time of each site visit. They do not constitute continuous inspection of the work. The contractor remains solely responsible for on-site health and safety, construction techniques, and compliance with all applicable laws and regulations.
The Process: Three Construction Visits and a Final Walkthrough
Rimkus conducted 3 observation visits during active construction from June 19 through June 29, 2020, followed by a final walkthrough on July 9, 2020.
- OR1 (June 19, 2020): Contractor mobilized and commenced removal of existing asphalt from residential unit driveways. Grading work underway. Granular base moisture appeared dry; contractor and client advised to moisten and compact the granular material before base asphalt placement. Contractor directed to arrange third-party geotechnical technician for compaction testing and to schedule asphalt and concrete testing per OPSD standards. Concrete stair and platform removal underway at remaining driveways. Base course asphalt scheduled for June 22, 2020.
- OR2 (June 22, 2020): HL8 base course asphalt (50 mm) placed at residential unit driveways. Granular base found compacted and graded properly to accommodate specified asphalt thickness. Asphalt delivery ticket reviewed at point of placement to verify material quality and specification compliance.
- OR3 (June 29, 2020): HL3 surface course asphalt placed at residential unit driveways. Base asphalt found compacted and graded properly. Asphalt delivery ticket reviewed at point of placement. Concrete sidewalk work completed. Contractor noted to have damaged a section of concrete sidewalk during works; client notified at time of observation.
- Final Walkthrough (July 9, 2020): Contractor, client, and Rimkus representative all attended. Damaged concrete sidewalk confirmed; client directed to require repair from contractor. No air void cracks observed in concrete sidewalks. Tire scuff marks noted in some driveways. Stair support not provided at some unit frontages; contractor acknowledged the deficiency and agreed to resolve within the following days. Contractor committed to rectify all identified deficiencies.
Key Observations and Corrective Directions
|
Observation |
Report |
Direction and Outcome |
|---|---|---|
|
Granular base moisture appeared dry before base asphalt placement |
OR1 (June 19, 2020) |
Contractor and client advised to moisten and compact granular material before base asphalt placement; base granular confirmed compacted and graded properly at OR2 |
|
Geotechnical compaction testing not yet arranged |
OR1 (June 19, 2020) |
Contractor directed to arrange geotechnical technician for compaction testing and to schedule asphalt and concrete testing per OPSD standards |
|
Asphalt delivery ticket review at HL8 base course placement |
OR2 (June 22, 2020) |
Delivery ticket reviewed at point of placement to verify material quality and specification compliance before compaction proceeded |
|
Asphalt delivery ticket review at HL3 surface course placement |
OR3 (June 29, 2020) |
Delivery ticket reviewed at point of placement to verify surface course material quality and specification compliance |
|
Contractor damaged concrete sidewalk during works |
OR3 (June 29, 2020) and Final Walkthrough (July 9, 2020) |
Client notified at OR3; deficiency formally documented at final walkthrough with direction to repair; contractor committed to resolve |
|
Stair support not provided at some residential unit frontages |
Final Walkthrough (July 9, 2020) |
Contractor acknowledged deficiency and agreed to provide stair support within the following days |
|
Tire scuff marks in some driveways |
Final Walkthrough (July 9, 2020) |
Documented at final walkthrough; contractor committed to rectify all identified deficiencies |
The Value Delivered
Granular base deficiency identified and corrected before asphalt placement. Dry granular base moisture was identified at OR1 and the contractor and client were advised to moisten and compact before base asphalt proceeded. Addressing this at the pre-asphalt stage protects long-term pavement performance. At OR2, the base was confirmed properly compacted and graded before the HL8 lift was placed.
Asphalt material compliance verified at the point of placement. Asphalt delivery tickets were reviewed at both the HL8 base course and HL3 surface course placements, verifying material quality before compaction made rejection impractical. Victoria Park Community Homes received documented evidence of material compliance at each lift.
Contractor damage to concrete sidewalk formally documented and directed for repair. Damage to a concrete sidewalk caused by the contractor was identified at OR3 and documented at the final walkthrough with a formal direction to repair. The final walkthrough, attended by the contractor, client, and Rimkus, produced a written record of the damage, the direction given, and the contractor’s commitment to resolve it.
Final walkthrough produced a comprehensive deficiency record. The final walkthrough on July 9, 2020 brought together the contractor, client, and Rimkus to review outstanding items before demobilization. Four deficiencies were documented: damaged sidewalk, tire scuff marks, missing stair support, and no air void cracks in concrete. Each was recorded with a direction and the contractor’s commitment to resolve, giving Victoria Park Community Homes a formal closeout record independent of the contractor’s own account.
Why Rimkus Built Environment Solutions
Residential driveway pavement rehabilitation requires construction observation that catches base preparation issues before asphalt is placed, verifies materials at the point of delivery, and provides the housing provider with a formal record of any contractor deficiencies before demobilization. Rimkus Pavement Engineering provides independent observation, material verification, and formal deficiency documentation for residential housing programs of all scales across Canada.
Rimkus Pavement Engineering serves residential housing providers, non-profit housing corporations, municipal housing authorities, condominium corporations, property managers, and institutional asset managers requiring technical consulting for driveway and parking lot pavement rehabilitation, condition assessments, design and specification, construction observation, and material verification across residential and commercial properties throughout Canada.
Key Takeaways for Residential Housing Providers and Property Managers
What Every Residential Housing Provider Should Know About Driveway Rehabilitation Programs
- Granular base moisture must be verified before asphalt is placed. Dry granular base material that is not moistened and compacted before asphalt placement can lead to premature pavement failure. Independent observation at the pre-asphalt stage catches this before it is concealed.
- Reviewing asphalt delivery tickets at the point of placement is a simple but essential quality assurance step. The ticket confirms mix design, plant of origin, temperature, and quantity: all verifiable at delivery and impractical to assess after compaction.
- Contractor damage to adjacent concrete works during asphalt placement is a documented risk on driveway rehabilitation programs. Independent observation provides the housing provider with a formal record of when the damage occurred and a written direction for repair, preventing disputes at project closeout.
- A final walkthrough attended by the contractor, client, and independent consultant is the most effective mechanism for identifying and formally documenting outstanding deficiencies before the contractor demobilizes. Verbal commitments made on site are worth little without a written record.
- For occupied residential housing, even small-scale pavement programs affect daily resident life. Independent observation documents contractor adherence to working area controls and traffic management at each visit.
Related Services
- Pavement Engineering
- Driveway and Parking Lot Rehabilitation
- Construction Observation
- Pavement Condition Assessments
- Design, Specifications, and Tender Management
Frequently Asked Questions
Connect with Our Expert
Aravind Perumalsamy, M.Eng., P.Eng., PMP®, LEED GA
Practice Leader, Pavement Engineering
+1 647 231 1244
[email protected]
View Aravind’s Expert Profile
Aravind holds a Master of Engineering in Civil Engineering from Carleton University and a Project Management Professional (PMP) designation from PMI. His expertise covers pavement observation, geotechnical investigation, drainage assessment, cost estimation, tender analysis, and award recommendation, with contributions to large-scale highway construction, condominium development, and parking lot pavement programs.
This case study is intended to provide general information and insights into prevailing industry practices. It is not intended to constitute, and should not be relied upon as, legal, technical, or professional advice. The content does not replace consultation with a qualified expert or professional regarding the specific facts and circumstances of any particular matter.