A catch basin at the bottom of a townhouse road may collect runoff from several driveways, visitor parking and a landscaped slope. When it blocks, the water may cross a shared entrance or run toward a garage—not just sit in an unused corner of the lot.
Start with the private road boundary—not an assumption
A grate outside a townhouse is not automatically a municipal drain, and a drain beside a private entrance is not automatically part of the strata's maintenance scope. Review the strata plan, drainage drawings and available maintenance records. Where ownership or a shared connection is unclear, confirm it with the property manager and municipality before commissioning work.
Mark the private basins included in the request separately from public-street drains. Report a blocked municipal drain through the municipality's official reporting channel. This guide covers service planning for private drainage; it is not a legal determination of strata responsibility or an authorization to work on public infrastructure.
Which strata road drains should be checked first?
Prioritize the consequence of a backup, not just how many leaves are visible. On a dry, safely accessible site walk, record:
- The bottom of a sloped internal road: note where water would travel if it bypassed the inlet.
- Shared driveway entrances and garage approaches: identify ponding that could cut off access or move toward a building.
- Visitor parking and pedestrian crossings: record standing water that affects a walking route or obscures pavement condition.
- Tree-lined curb inlets: note leaves, needles, mulch or soil moving from landscaped areas toward the grate.
- Repeat trouble spots: identify drains that remain slow after surface debris is cleared or that back up at the same time.
Use a simple sketch with labels such as CB-01 and CB-02. Keep the same labels in the printable storm drain maintenance record, photos and service request. That lets council members, residents and the service crew discuss the same location without relying on “the drain near the corner.”
Fall leaves: what residents can do, and what needs service
Port Coquitlam's catch basin guidance recommends keeping leaves and other surface debris clear and keeping the path into the drain open. It also notes that many drains discharge to fish-bearing streams. Do not blow leaves, sweep sand or wash dirty water into the drainage system.
Surface care is not a substitute for vacuum catch basin cleaning. A grate can look open while sediment and debris occupy the sump below. Equally, leaves over a grate do not prove the buried pipe is blocked.
Only remove loose surface leaves if the work can be done safely from dry ground, away from moving vehicles. Use a long-handled tool; do not reach into the drain, lift grates, enter a chamber or step into pooled water. Leave heavy debris, damaged covers and below-grate work to an appropriate service crew. Vancouver likewise recommends a long-handled tool rather than hands and warns residents to stay out of traffic.
Before fall rain becomes frequent, arrange an inspection or cleaning request around the property's history and observed condition. Do not wait for every tree to finish dropping leaves if a high-consequence basin already needs attention. Continue safe surface checks after leaf fall and rain; a single cleaning cannot prevent every flood.
Keep resident access and emergency routes in the plan
Townhouse sites can have a single entrance, tight turning areas and little room to stage equipment. Send the actual access constraints before the service window is confirmed. Do not assume every vacuum truck can fit the road, slope or turning area.
- Identify the approach. Provide the best entrance, gate arrangement, narrow sections, slopes, overhead restrictions and turning space. Keep access codes out of public photos and shared notices.
- Agree on the work zone. Ask how much space must be kept free around each basin, vehicle and hose route. Do not reserve a fire lane as a staging area; keep required emergency access clear.
- Notify affected residents. Explain which parking spaces or driveway sections need to be clear, the agreed working window, the onsite contact and any approved alternate route. Do not promise an exact finish time before the scope is confirmed.
- Coordinate other site activity. Account for waste pickup, moving vehicles, deliveries, school travel and landscape crews. Where access cannot safely remain open, settle the access plan with the property manager before starting.
- Record inaccessible drains. If a vehicle or locked area prevents service, mark that drain as not completed rather than treating the entire site as cleaned.
Cleaning, hydro jetting or camera inspection?
The service should match the problem. Avoid asking for every method by default:
Several drains rising together can warrant investigation of a shared downstream restriction or another system condition; it is not a diagnosis by itself. Water below the outlet in a sump-style basin can also be normal. See the guide to water remaining after basin cleaning before assuming any standing water means failed service.
Send a short strata road cleaning request
You do not need to know the pipe layout to start a conversation. Name and phone are enough to start the form. The following optional details help scope the visit:
- Site address, city and the onsite contact who can manage access.
- Approximate basin count and a numbered sketch of the private road or shared driveway.
- The drains that pond first, the last known cleaning date and whether the problem returned after service.
- Safe photos of the grate, surrounding pavement and access approach, without residents' faces, licence plates or private entry codes.
- Gate arrangements, truck access constraints, resident parking controls and preferred service windows.
For multiple buildings or repeated seasonal work, use the planned catch basin maintenance service path. Ask what was completed, what could not be accessed and what needs follow-up; keep those notes with the numbered drain record.
Strata road service across the Lower Mainland
Discuss private strata road and townhouse driveway drainage in Port Coquitlam, Coquitlam, Port Moody, Burnaby, Surrey, Langley and Maple Ridge, along with other listed Lower Mainland service areas. Equipment access, availability and the work scope must be confirmed for the actual site.
Questions strata councils ask
Can we clean the basins while residents are home?
Potentially, if the equipment approach, pedestrian route and resident vehicle access can be managed safely. A single-entry complex may need a different sequence from a site with two entrances. Confirm the arrangement before issuing a resident notice.
Should we wait until all the leaves have fallen?
Not if a basin is already loaded, access is affected or there is a history of water approaching buildings. Discuss the condition now and plan safe surface checks through leaf fall. Set cleaning intervals from the site history rather than a universal calendar date.
Does cleaning guarantee the road will not flood?
No. Pipe damage, downstream restrictions, grading, system capacity and other conditions can still cause flooding. Cleaning addresses material within the agreed scope; repeated symptoms may need further investigation.
What if water is rising across the road now?
Keep people and vehicles out of the affected area and call (778) 312-3314 to discuss the site; response timing is not guaranteed. Do not rely on the online form for active flooding. If there is immediate danger to people, use emergency services. The active-water response guide explains safe first observations.
Local surface-care sources
- City of Port Coquitlam — catch basins, surface debris and waterway protection
- City of Vancouver — safe catch basin surface care
These municipal sources support surface-care and safety guidance, not a determination of private drain ownership or endorsement of this service.
Private strata roads & shared driveways
Plan the cleaning before the low point becomes the problem.
Send the basin count, problem locations and access notes to Lowermainland Catch Basin Service. We can discuss catch basin cleaning and whether private storm-line work needs to be scoped separately.