Harringay Drainage Works Anglia Civils Framework

Description of the works (Scope):

BPH Rail & Civil Engineering was awarded Harringay Drainage renewals, catch pit repairs and culvert works as part of the year 4 Anglia Civils framework.

The works were undertaken in 2 x 27 hour possessions within weekends 1 and 2. The works completed over 6 shifts over the two weekends.

The scope of this rail project required BPH Rail to be involved with the client from the planning stage, which involved site visits and planning meetings, right through to handover. The railway drainage works involved loading out materials, cat scanning and surveys, cable and asset protection, excavation, pipe and catchpit installation and backfilling.

The scope of works was to replace all pipes within the 6ft, tie into existing catch pits and repair damaged catch pits. The total meterage was 90m, including 1 x cross drain tying into existing outfall culvert.

Part of the works was to de-vegetate the existing culvert, excavate and re-shape drainage ditches and install a new permeable ditch liner including new GRP covers fixed onto the culvert headwall.

New 6-foot pipe run installed along with new GRP Catch pit.

On this railway project BPH Rail supplied plant, labour and safety rescue equipment with supervision and a highly skilled work force throughout the weekend.

The client Colas Rail supplied the OTP and Engineers for this project. Each team was fully briefed about the importance of exclusion zones, trench and edge protection and only engaged with the installation works once the on-track plant and trains were fully stood down.

Railway drainage culverts are critical structures that allow water to pass under railway tracks. They prevent water accumulation, which could otherwise weaken the track’s foundation, cause erosion, or lead to track deformation, thereby ensuring the stability and safety of the railway infrastructure.

The existing outfall culvert at this location was severely overgrown, blocked with damaged internal pipe.

BPH Rail utilised a small 3-ton 360 excavator to re-shape the ditch, clear debris, and set new levels for the water flow.

All works were completed on time with no delays or snagging items reported.