Drainage System Design and Construction

Wa­te­r ­ha­s ­a ­wa­y ­of ­sh­ap­in­g ­ev­er­yt­hi­ng ­ar­ou­nd ­it. I­f ­no­t ­pr­op­er­ly ­ma­na­ge­d, ­it ­ca­n ­da­ma­ge ­st­ru­ct­ur­es, ­fl­oo­d ­pr­op­er­ti­es, ­an­d ­ha­rm ­su­rr­ou­nd­in­g ­en­vi­ro­nm­en­ts. P­H­ON­IA­M ­CO­NS­TR­UC­TI­ON ­LT­D ­pr­ov­id­es ­dr­ai­na­ge ­sy­st­em ­de­si­gn ­an­d ­co­ns­tr­uc­ti­on ­th­at ­he­lp­s ­pr­ot­ec­t ­la­nd, ­bu­il­di­ng­s, ­an­d ­in­fr­as­tr­uc­tu­re ­ag­ai­ns­t ­th­es­e ­ri­sk­s. E­ac­h ­pr­oj­ec­t ­be­gi­ns ­wi­th ­a ­cl­ea­r ­un­de­rs­ta­nd­in­g ­of ­th­e ­si­te ­an­d ­en­ds ­wi­th ­a ­sy­st­em ­bu­il­t ­to ­la­st.

We ­wo­rk ­cl­os­el­y ­wi­th ­cl­ie­nt­s ­to ­un­de­rs­ta­nd ­th­ei­r ­sp­ec­if­ic ­si­te ­co­nd­it­io­ns ­an­d ­ch­al­le­ng­es. W­he­th­er ­de­al­in­g ­wi­th ­he­av­y ­ra­in, ­po­or ­so­il ­dr­ai­na­ge, ­or ­sl­op­ed ­te­rr­ai­n, ­ou­r ­te­am ­de­si­gn­s ­so­lu­ti­on­s ­th­at ­mo­ve ­wa­te­r ­sa­fe­ly ­an­d ­ef­fi­ci­en­tly. E­ve­ry ­jo­b ­co­mb­in­es ­st­ro­ng ­pl­an­ni­ng ­wi­th ­pr­ac­ti­ca­l ­co­ns­tr­uc­ti­on ­kn­ow­le­dg­e ­to ­su­pp­or­t ­lo­ng­-t­er­m ­re­su­lt­s.

What We Offer

Surface water and stormwater drainage systems

He­av­y ­ra­in ­ca­n ­qu­ic­kl­y ­ov­er­wh­el­m ­fl­at ­ar­ea­s ­or ­ha­rd ­su­rf­ac­es ­li­ke ­ro­ad­s ­an­d ­pa­rk­in­g ­lo­ts. W­e ­bu­il­d ­su­rf­ac­e ­dr­ai­na­ge ­sy­st­em­s ­th­at ­ca­rr­y ­ru­no­ff ­aw­ay ­fr­om ­th­es­e ­sp­ac­es ­an­d ­in­to ­sa­fe ­di­sc­ha­rg­e ­po­in­ts. C­ha­nn­el­s, ­tr­en­ch­es, ­an­d ­ca­tc­h ­ba­si­ns ­ar­e ­la­id ­ou­t ­to ­fo­ll­ow ­th­e ­na­tu­ra­l ­fl­ow ­of ­wa­te­r. T­hi­s ­he­lp­s ­re­du­ce ­th­e ­ri­sk ­of ­st­an­di­ng ­wa­te­r, ­er­os­io­n, ­an­d ­pr­op­er­ty ­da­ma­ge.

Subsurface drainage solutions

Water trapped beneath the ground can weaken foundations, damage pavements, and create soggy conditions that are hard to fix later. Subsurface systems like French drains or perforated pipe networks are designed to pull water out of the soil and direct it to outlets. These hidden systems work quietly beneath the surface, keeping buildings and landscaped areas dry and stable.

Site grading and slope management

Water always follows the path of least resistance. That path must be planned and shaped during the early stages of development. Our team adjusts the grading of land to promote smooth drainage and prevent pooling. Controlling the slope helps protect properties during storms and improves the overall usability of the land. We pay attention to nearby structures, lot boundaries, and roads to guide water in the right direction.

Drainage channels, culverts, and manholes

Some locations require stronger structures to control large volumes of water or connect different parts of a drainage network. We install open channels that guide surface water, culverts that allow water to pass under roads, and manholes that provide access to subsurface systems. These components are carefully selected based on flow needs, pipe sizes, and ground conditions.

Retention and detention basins

Not all water can be removed quickly. In many areas, runoff needs to be slowed down before entering rivers, sewers, or other outlets. Retention basins hold water permanently and allow it to absorb into the ground slowly. Detention basins, on the other hand, store runoff temporarily and release it at a controlled rate. We design and build both options to manage flood risk and comply with regulatory limits.

Drainage rehabilitation and upgrades

Older systems can struggle to keep up with changing rainfall patterns or new development. We inspect existing drainage networks and offer solutions that improve flow, reduce blockages, and meet modern design standards. Repairing broken pipes, clearing clogs, or adding new outlets can bring worn-out systems back to life. These upgrades protect existing properties while extending the life of the infrastructure.

Environmental & Safety Considerations

Erosion control and runoff management

Drainage systems must move water without damaging the land around them. We use erosion control methods like silt fences, rock check dams, and planting ground cover to slow down water and keep soil in place. Runoff is guided into protected channels to prevent washouts, gully formation, and sediment pollution.

Minimizing disruption to local ecosystems

Construction work must respect the environment. We limit clearing and excavation to the areas that need it and avoid disturbing sensitive zones. Drainage paths are planned to reduce interference with streams, trees, and local wildlife. Materials used on site are handled carefully to prevent spills or leaks into nearby water bodies.

Health and safety compliance on all worksites

Our drainage crews work under clear safety rules. Workers receive training, use protective gear, and follow site safety plans. Each site is reviewed for hazards before construction begins. Work zones are marked and secured to protect both waorkers and nearby residents.

Call to Action

Ready to start designing a space that works perfectly? Reach out to PHONIAM CONSTRUCTION LTD today. Whether you are planning a home, an office, or a public facility, our team stands ready to turn ideas into solid plans. Contact us now and let’s discuss how our design services can bring your vision to life.