internal drainage

internal drainage

The removal of water (for example, by weep holes) that has penetrated the exterior layers of a composite wall.
References in periodicals archive ?
Workers from Wynne Construction have completed the footings, and this week began on blockwork and internal drainage.
The first patient with Type-IV choledochal cyst underwent anastomosis between the secondary hepatic bile duct and jejunum and the second patient underwent laparoscopic cyst internal drainage.
Various surgical modalities for internal drainage are transgastric and endoscopic cystogastrostomies.
This severe eye inflammation causes changes within the eye that can result in blockage of the eye's internal drainage system.
The proposed scheme was developed in conjunction with advice from the Environment agency and Trent Valley Internal Drainage Board.
It has grown to over 230 members, which include Internal Drainage Boards, the Environment Agency, local authorities and suppliers to the industry.
It will include floodgates, a secant wall providing seepage cutoff, internal stormwater piping and storage, utility modifications and internal drainage area pump stations.
WELSH GOVERNMENT LAND DRAINAGE ACT 1991 THE LOWER WYE AND CALDICOT AND WENTLOOGE INTERNAL DRAINAGE DISTRICTS (ABOLITION) ORDER 2015 Notice is hereby given that Welsh Ministers in exercise of the powers conferred upon them by section 3(5) of the Land Drainage Act 1991, propose to make an Order confirming a Scheme submitted by Natural Resources Wales under section 3(1) and 4(3) of the Act.
In these instances, partial resection, marsupialization or internal drainage may be performed.
We are also pleased to see recognition of the importance of local knowledge and giving greater responsibility to Internal Drainage Boards (IDBs), which are localism in action and a practical solution to flood management.
We also recommend that further advice with respect to flood risk and drainage is sought from the lead local flood authorities and the Caldicot and Wentlooge Levels Internal Drainage Board," NRW said.

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