Once a crumbling asphalt strip inclined to flood, today it is "the greenest street in America": a $15m showcase for cutting-edge ecological technologies such as photocatalytic cement to reduce smog and landscaped shallow troughs known as bioswales, which act as environmentally-friendly drainage, filtering and absorb polluted water.
In this field, the phenomena of seepage flow, drainage with filter layers, liquefaction, and consolidation occur under excitation by stationary and time-dependent external forces.
But a careful mix of the right kinds of plants, dirt, stones and drainage channels would filter the water as it slowly passed through, he said.
Reduction of pore water pressure is often necessary to secure structural safety, and is generally achieved by adopting peripheral filter drainage systems.
To the north, several river drainages acting as filter barriers differentially subdivided co-distributed highland taxa through time.
Different aspects of the process were considered including, mechanisms of drainage of liquids from filters' surfaces for the wettable and nonwettable filters, performance of combined wettable/nonwettable filters and processes of the removal of viscous particles by wettable fibrous media.
And Maryland completed establishing the first 600 miles of buffer forests along stream fronts to filter the drainage into the bay from fertilizer-ridden farms, suburban storm sewers and outdated sewage plants.
This objective is reached by replacing conventional urban drainage pipes with swales, filter strips, wetlands and ponds as collection, storage and treatment systems designed for natural processes.
The side slope to a roadside swale (drainage ditch) constitutes a filter strip that has potential for infiltration of road runoff, thereby serving as a stormwater quantity and quality control mechanism.
Physical measures Cleaning of static and mobile infrastructure, drainage system changes, air filter maintenance and replacement, light and signage alterations, diversions.
At steady state of all the filters, the drainage rate and loading rate were almost the same.
