subdrainage

subdrainage

[¦səb′drā·nij]
(civil engineering)
Natural or artificial removal of water from beneath a lined conduit.
References in periodicals archive ?
Tenders are invited for work includes approx 555 lf of 8" perforated pvc drain line; 620 lf of subdrainage trench; 15 ea of 4" sewer service re-connection; 200 lf of 4" pvc sewer service line; 10 ea underground utility mapping; 1 ls site clearing; 10 ea buried utility crossing; 2 ea of 20 ft length fiber rolls; 1 ea sanitary sewer manhole removal; 1 ae sanitary sewer manhole replacement; 25 ea sanitary sewer manhole reconstruction.
pulchra from creeks in the Tallapoosa subdrainage of the Mobile Bay basin (Shealy, 1976).
The failures from the T Equipment effort to include the slices in the waterproofing and the deficient subdrainage system, in particular, have caused water damage and the freeze-and-thaw cycle damage to the concrete structure that requires attention prior to this winter to correct and reverse these conditions," the manager said.
In 2006, Locke led WQE scientists in a new round of CEAP studies in six Beasley Lake subdrainage areas with similar topographies and soil types.
Specifically, the guide includes procedures for evaluating existing pavements and recommendations on rehabilitation treatments, subdrainage, and foundation improvements.
Subdrainage is the control and removal of excess groundwater.
This software program, which has the acronym DEDNM (Digital Elevation Drainage Network Model), automatically extracts a fully connected channel network, with subdrainage boundaries, pathways of surface water flow, and landscape properties of the drainage basin and sub-catchments from digital elevation models.
Each sub-basin management unit is based loosely on subdrainage area boundaries that are each comprised, on average, of 500 acres.
It also offers procedures for evaluating existing pavements and recommendations for rehabilitation treatments, subdrainage, and foundation improvements.
Manufacturers of plastic pipe suitable for subdrainage purposes and as culvert include Aardvark Corp.
Tenders are invited for In general the work consists of construction of nearly 29,000 cubic yards of grading, installation of a subdrainage system, perimeter cast-in-place concrete curb, a cast-in-place retaining wall, perimeter fencing, gated access, pre-cast concrete and masonry piers, water service installation, landscape restoration, general sitework, scoreboard installation, and LED sports lighting upgrades to accommodate 289,700 square feet of synthetic turf (synthetic turf to be furnished and installed by Others).