Presentation on theme: "Village of Alden Stormwater Pictorial view. Here is a view of rainfall and notice how the water carry’s away from the center of the road to the sides."— Presentation transcript:
Village of Alden Stormwater Pictorial view
Here is a view of rainfall and notice how the water carry’s away from the center of the road to the sides
Here is another view where the "crown" or center of the road has pitched the water towards the curbs.
In this view you can see how the water has collected in the gutter away from the road crown.
Here you can see water flowing to you in the gutter
In this street there is no gutters or curbing so water flows down the shoulders.
At certain points water falls into collection points which we call DI's.
DI's are also found in low points of yards
On some streets water runs from the DI to a main trunk line that runs along the street. This manhole cover is directly over the main and is opened for inspection and cleanout.
This is a view of DI's that has not been installed as of yet. These units are precast concrete and come in different sizes. The indents on the sides allow for piping to be installed.
This is a view of the inside of a DI.
This is a look of a DI that has the grate open. Note the water pouring in the top. The two smaller pipes on the sides is bringing in water from under drainage under the streets. The bigger pipe is taking water away to the main.
This DI is made from block and bricks. The pipes are set so that any debris that comes in will settle to the bottom of the DI allowing the water to flow out.
Some of the piping is made from galvanized steel.
The more modern piping is ADS pipe, which is rigid and non corrosive.
This ADS pipe is more flexible and is used for under drainage.
The main line has dumped into this area we call a retention pond. The purpose is to collect runoff and release slowly to control flooding.
You can see the flow of water from upper left to the lower right in the early stages of this retention pond.
This retention pond has collected water to keep away from these apartment buildings.
This is another view of the same pond.
Here we see a main line emptying into a creek.
Here you see two outfalls dumping into the creek. They are flowing over rip rap stone to prevent erosion of the creek bank.
This outfall is coming through the side of a bridge abutment.
This is a creek flowing under a sidewalk and road bridge.
This shows a ditch joining a creek.
Under drainage flowing into drainage ditch.
Two ditches joining together before entering a roadway culvert.
Drainage ditch from Willow Woods, Meadow, and Homecourt subdivisions heading towards Ellicott Creek.
Ellicott Creek just below flood stage.
Ellicott Creek behind WW treatment plant.
Brush and yard waste should not be placed in gutters, along curbs, or in the streets.
The brush and yard wastes should be placed on the yard side of the gutters, curbs and streets.
Notice the ponding behind this pile of yard waste.
The yard waste placed in this gutter has backed up the water to flow into this yard and also is causing partial blockage of the DI grate.
The arrows point out the water blocked up behind this yard waste pile.
Water blocked behind this yard waste pile.
This is a wad of roots pulled out of a outfall into a retention pond. The roots came from a tree that a homeowner planted near the drainage system.
This gives you perspective on how large the root blockage was.
This was a blockage in Ellicott creek caused by a tree falling over.
The tree blockage caught any debris flowing down the creek and created a huge dam. There is approximately an 18" difference of the height of the water on both sides of this dam.
This is the same area after DPW workers cleared out the dam that was on village property.
This is some of the debris that was cut up and hauled out of the creek from the dam.
More debris removed from the dam.
Drainage ditch that was cleared out of overgrowth along side of Willowwoods park.