Precast FT Flumes

Precast FT Flumes are large-sized and shallow-profile U-shaped channels with multiple applications, including storm water drainage, utility ducting, cable management and ICT infrastructure.

Get a Quote

Compliant with Indian standards
Fast to install
Compliant with Indian standards

Multi-application precast channels Large sizes Various cover configurations

What is a Precast FT Flume?

Precast FT Flume supplier in NCR

A precast FT Flume is a wide, shallow U-shaped channel that comes with a larger cross-section than a standard U-drain. It has ribbed walls, designed to provide better structural strength while reducing the unit weight for easier handling.

FT Flume comes in various large sizes and has multiple applications based on how it is installed. With a perforated cover, it is a stormwater drainage channel; with a solid cover, it acts as a protected utility duct for cables, conduits, and service lines; with a cable rack bracket inside, it becomes a cable tray support system. The same product has myriad uses: highway drainage, railway trackside, ICT routing, and underground cable management at prime infra projects in India.

High Flow Capacity

The wide, shallow cross-section handles larger drainage volumes than an equivalent-depth U-drain.

Three Cover Configurations

Standard perforated lid for stormwater inflow, no-hole solid lid for cables, and perforated grating for maximum surface collection.

Ribbed Wall Structure

Waffle rib pattern on the external wall face provides structural stiffness in the large-section unit while reducing concrete volume.

Long-Run Performance

Factory-manufactured to uniform dimensions, FT Flumes maintain hydraulic gradient and alignment across long corridor runs.

Cable & Utility Protection

Protects cables and service lines from mechanical damage, soil loading, and surface intrusion, without the depth and cost of buried conduit.

Standards Compliant

Manufactured in conformance with applicable Indian standards. Specification-ready for highway, railway, and municipal project documents.

Industrial & Institutional Campuses

Factories, logistics parks, hospitals, and large campuses require both yard drainage and below-grade service routing, often on the same project. The FT Flume serves both functions, reducing the number of product types being procured and installed. Industrial yard drainage handles oil-contaminated runoff from paved areas; the same flume section in a different zone houses electrical and control cables serving production equipment.

Highways, Airports & Railways

Wherever large paved surfaces generate high runoff volumes that a standard U-drain cannot handle efficiently: Highway shoulder drainage, airport apron and taxiway perimeter channels, and railway trackside drainage.

Cable, Power & Telecom Infrastructure

Where burial depth is limited or surface access for maintenance is required, a solid covered FT Flume run is the engineering-preferred alternative to conduit burial. Used for ICT duct installation, optical fibre routing, and HT/LT power cable management.

Installation Guide

The trench is excavated to the required depth, allowing for unit height plus PCC bedding. The bed is cast and levelled to the design invert gradient (the longitudinal slope that governs flow velocity and self-cleaning performance). On long highway runs, setting out the gradient accurately from the outset prevents cumulative level error across hundreds of metres of drain.

Cover slabs are placed in the appropriate type (perforated, solid, or grated), as specified. The trench is backfilled and compacted in layers. Cover slabs are set to the finished surface level. For utility runs, the cover slab layout is documented for future maintenance reference; any slab can be lifted individually for cable access, inspection, or repair.

The cover frame is bedded at finished surface level and the appropriate load-rated cover is seated. Backfilling and compaction proceed around the chamber in layers. The surrounding surface is reinstated to match the adjacent finish: block paving, tarmac, or concrete as the project requires.

Multi-application precast channels Large sizes Various cover configurations

Your Next Precast Infrastructure Project Starts Here

Frequently Asked Questions

Both FT Flume and T-25 are precast U-shaped drainage channels, but they differ in cross-sectional form and structural design. The T-25 is engineered for direct heavy vehicular loading and is the standard highway carriageway drain. The FT Flume is a wider, shallower section designed for higher flow volumes at shallower depth, suited to highway shoulders, airport aprons, and applications where depth is limited but flow capacity needs to be large. It also has a ribbed wall structure that the T-25 does not. Where vehicular overrun is a design requirement, the T-25 is specified; where it is not, the FT Flume may offer better hydraulic performance at the required depth.

Yes! This is an established, actively specified application in India. Fitted with a no-hole solid cover, the FT Flume provides a protected, load-bearing surface-level enclosure for power cables, telecom conduit, optical fibre, and ICT infrastructure. It has been used on institutional and national infrastructure projects for exactly this purpose. If your project has surface-routed cable or utility requirements, share the details, and we will confirm the appropriate flume size and cover specification.

Three cover types: standard perforated lid for stormwater drainage applications; no-hole solid lid for cable duct and utility routing; and perforated grating for maximum surface water ingress. All three use the same flume body; cover type is the only variable.

Yes. Open-top FT Flumes or those fitted with grated covers can be used for lined canal sections, irrigation distribution channels, and nala (drain) channelisation where a consistent concrete-lined cross-section is required to reduce seepage and prevent bank erosion.

We manufacture FT Flumes across a range of internal dimensions. Share your hydraulic design and drainage catchment requirements, and our team will confirm the appropriate size for your flow conditions.

We manufacture from various precast plants in Delhi NCR and supply across Northern India, including Haryana, Delhi, Uttar Pradesh, and Rajasthan.