"drainage along" is correct and usable in written English.
You can use it when you want to refer to a drainage system that is along a certain route, as in, "A network of drainage along the canal helps keep the water level from rising."
The influx of humans had a detrimental effect on the plants and animals of the region when melaleuca trees (Melaleuca quinquenervia) were introduced to help with drainage, along with Australian pines brought in by developers as windbreaks.
"After the flood in 1979, drainage along Main Street was improved.
The plan would involve overhauling the highway drainage along Straight Creek and Black Gore Creek, two 10-mile-long segments 75 miles west of Denver.
Scarp parallel east west drainage along with linear lakes characterises the emerging thrust front.
The river, besides irrigation and aquaculture, is used as the municipal wastewater drainage along with industrial discharges from ~ 1500 industries and factories.
(D) Conventional fluoroscopic nephrostogram confirms free drainage along the collecting system and into the bladder (arrows) Open image in new window Fig. 8 CEUS imaging with ultrasound contrast placed within a Chiba needle.
Further south, the Colorado River basin borders on the Rio Grande drainage, which along with the Mississippi flows to the Gulf of Mexico, as well as a series of endorheic (closed) drainage basins in southwestern New Mexico and extreme southeastern Arizona.
West Indian manatees (Trichechus manatus) are greatly reduced and now exist only in certain drainages along the west coast of Florida.
They have taken gamma radiation readings all over Baghdad, and drawn water, sediment and vegetation samples from drainage basins along the Tigris and the Euphrates, rivers along whose banks many of Iraq's 22 million people, and much of its industry, are clustered.
The berm, they say, ended just above their property, blocking the natural drainage flow along the hill and channeling water toward their home.
Mr. Apicella said that in September, tropical storm Floyd exposed some storm drainage problems along the riverfront, and that was one of several reasons that his company reconsidered its plans.
