detention pond advantages and disadvantages

A poorly maintained retention pond is doomed to fail. Click To Tweet They allow stormwater to flow and filter naturally, as opposed to being collected and stored. We guarantee best-in-class USA manufacturing and materials. The advantages of detention basins as stormwater management devices are that they are simple to design and maintain and require less space than some other solutions. They also are unable to improve water quality. Using them for smaller areas can make it a little difficult to provide channels and outlets for water flows. Advantages Disadvantages; Wet Retention Pond: Wet basin or pond maintains a permanent pool of water, in addition to temporarily detaining stormwater Applicable to all site sizes, depending on available space Can achieve high removal rate of pollutants Most cost effective for larger, intensively developed sites. Higher stages in the basin can also attenuate the peak rates of runoff from larger storms for flood and erosion control. Take, for example, the Blue Dog Pond located in Seattle, WA (pictured above). Having plants in the water enhances calm conditions and promotes settlement adsorption by aquatic vegetation biological activity. 652 0 obj <>/Filter/FlateDecode/ID[<4453E88BFA723226789CE6A480944270>]/Index[636 32]/Info 635 0 R/Length 85/Prev 174703/Root 637 0 R/Size 668/Type/XRef/W[1 2 1]>>stream hbbd``b`$Af b$> f)!s-sA$@wLL@#E p1 <> These ponds, however, do not empty water from their holding area unless it crosses a fixed level. Detention basins are created using a slight slope. Stormwater becomes polluted because it flows throughout cities and landscapes collecting pollutants, which it then carries into other waterways. While dry and wet ponds have their own unique benefits, retention ponds often take the cake for their versatility and many benefits to nearby neighborhoods. 15465 Pine Ridge Road They are able to retain and improve water quality, are easy to create, and help form new habitats. hb``f`` ,@`OyM.00>j `&*L;4A4 U.S. Detention basins are normally dry and in certain situations the land may also function as a recreational facility. Keeping up with maintenance can reduce costly repairs in the future. Both retention and detention basins provide a safe way to collect stormwater and release it via underground pipes and evaporation over time. All the water runs out between storms and it usually remains dry. 7 0 obj <> 667 0 obj <>stream removing sediment and debris- Keeping pipes clear of debris and removing sediment ensures proper function. In this case, it makes more sense to have a dry pond because (1) the location probably isnt favorable for a retention pond, and (2) it has a multipurpose use that wouldnt be possible with a retention/wet pond. 3. The construction of a retention pond can range from USD 35,000, to USD 1,000,000 depending on the size and modifications made to the pond. 4 0 obj Detention ponds, for instance, have steep sides and usually arent meant for swimming or recreational activity. Because of human changes to the environment like roads and sidewalks, this runoff cannot always be reabsorbed. West Coast Erosion Control & Disaster Solutions, Comparing the Most Common Erosion Control Barriers. It can also cause issues like flooding, waterway sedimentation, habitat loss, sewer overflow, stream-flow changes, and erosion. Most detention ponds start out fully functional and in perfect harmony with Mother Nature, lack of proper upkeep leads to the area becoming unkempt and overrun with pesky wildlife. Both types have their uses depending on the general climate and topography of the area. It is mandatory to procure user consent prior to running these cookies on your website. Detention basins and retention basins both contain stormwater and release it slowly to prevent flooding, contamination, erosion, and more. Detention basins are an inexpensive solution to stormwater management. Surrounding areas have vegetative buffer that can withstand dry or wet conditions. Fort Myers, FL 33908 Because they are not full of water all of the time, dry detention ponds can also be a great option for drier climates that need to protect themselves from rare but damaging floods. Retention ponds have pros and cons like detention ponds. The retention time promotes pollutant removal through sedimentation and the opportunity for biological uptake mechanisms to reduce nutrient concentrations. Similar to a dam, its a means to contain and hold runoff, allowing water to build up on site. Lightweight, easy to install and robust. endstream endobj 637 0 obj <>/Metadata 44 0 R/PageLabels 632 0 R/PageLayout/OneColumn/Pages 634 0 R/PieceInfo<>>>/StructTreeRoot 84 0 R/Type/Catalog>> endobj 638 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 639 0 obj <>stream A retention basin or pond has a riser and orifice at a higher point and therefore retains a permanent pool of water. Click here to find our list of stormwater and environmental tools. The construction of a detention pond can range from USD 40,000, to USD 1,000,000 depending on the size and modifications made to the pond. It may not be as aesthetically pleasing as a retention pond. They vary in size depending on the function to settle stormwater particles and reduce peak flows. The exceptions to this are places that have arid climates and a scarcity of water, which is detrimental to the ponds sustainability. Residential: YesCommercial/industrial: YesHigh density: UnlikelyRetrofit: UnlikelyContaminated sites: Yes (with liner)Sites above vulnerable groundwater: Yes (with liner), Performance Peak flow reduction: GoodVolume reduction: PoorWater quality treatment: GoodAmenity potential: GoodEcology potential: Good. Water that accumulates between the forebay and the embankment is released at a slow, controlled rate through the stone riprap to a bigger destination water body. Retention ponds naturally improve water quality and remove pollutants. These ponds are not suitable for arid areas and urban areas, due to the lack of space and water supply. Theyre trusted for emergencies as well as for more permanent stormwater containment solutions. Here are some advantages and disadvantages to each type of pond that can be considered when planning out a site, or looking at the future of a particular area. This category only includes cookies that ensures basic functionalities and security features of the website. From a health standpoint, there is always a concern with standing water. Teach Your Kids to Recycle, Reuse, and Reduce With These Tips, Creative Ways to Repurpose Your Everyday Plastic Bottles, Reasons Why California is Going Through the Worst Drought in History, Save Money And Save The Planet At The Same Time, Are You Recycling Right? Typically, dry detention basins are the least expensive design options among retention and detention practices. Retention ponds . w(:S|yESI.{Ix6v6Y$gdu8YMv_/J _c`hTEg.UFw>dO~':l N\gn5T {-$fy6EUG&sZNa] JIIQn%vV,g"aQk:6lUS(t|z3?v),7Q:8x3Rs?rav[saNmcR;]yx9n !7~TPe]5 All Rights Reserved. 20 0 obj <> Litter/debris removal Inlet/outlet cleaning Vegetation management Sediment monitoring and removal when required. However, there are some key differences between the two that may determine which method you choose to protect your home, property, or business. What are the disadvantages of a retention pond? %2zFPztVOZT?pI!>?>}{ZOE/ Disadvantages. With the rapid rate of urbanization in the modern world, and haphazard construction of buildings without any regard to the environment or nature, flooding is very common even after a spell of moderate rain. But opting out of some of these cookies may have an effect on your browsing experience. The ponds natural processes then work to remove pollutants. endstream endobj startxref The disadvantages of retention ponds include a large land requirement. -Mx-BGT""D4h0D BOToBr M v:]O%W!dR5!Cd6h"0 ;(S#fn@8l.A="ps<2xCDT9]h2 f!@eu8\&eq!C@2G,r9#e5P'+@6pdqC4:5aGO\OOY|:A` =~uA.OONaS='t> *>o{ ":QwONp'KO~OmOo X\"di0'x? Sign up to receive the latest and greatest articles from our site automatically each week (give or take)right to your inbox. Detention basins. Besides enhancing the beauty of the area, these ponds help in stopping erosion. They may look like regular ponds, but if you look a little bit closer, you can usually tell the difference between a retention pond and a regular pond. Advantages and disadvantages Where component can be used Residential: Yes Commercial/industrial: Yes High density: Unlikely . Call for immediate pricing or submit form for 24-hour Quote. Pond depths range from 1.8 to6 m (6 to 20 ft), with 3 m (10 ft) the most typical (theshallow depth systems usually are converted facultativelagoons). However, retention ponds never completely drain or dry. As our cities continue to grow, there is an increasing need to divert water. Detention basins are less expensive to implement. HW6}WbhA lkkJ"h3CbQZrz[W&,e"Y[4OI6OF!a8g8RM0t6]3iFXb:pktF 7b4ys 7z (^6lN4F$4wL.]Oz op]LN\}s2()9W5g-="Ap"a. For this reason, they are often installed in locations with a high rate of rainfall or with topography that is prone to flooding. Product Details, Select a representative below to chat on WhatsApp or send us an email to nick@trapbag.com. Stormwater runoff is rain or snowmelt that accumulates and flows over the landscape. With natural vegetation surrounding the basin to prevent erosion, they can actually look rather picturesque. Does not improve water quality. They only require a shallow excavation and some aggregate fill to install, and they snap together instantly like LEGO blocks. <> Patents 8,734,049, 9,617,698, D792,987, 9,670,624, 10,072,383, 9,909,266, 9,909,264 | US and Foreign Patents Pending | Plants can act as an additional method of flood prevention since their roots soak up excess water and stabilize the ground, preventing erosion. Copyright Help Save Nature & Buzzle.com, Inc. There are three basic classifications, or types, of ponds utilized for wastewater treatment. The biggest difference between the two is that a detention pond will remain dry until a storm occurs, and a retention pond will have a constant pool of water. An orifice at the bottom of the detention pond drains the basin via an underground pipe. Improperly planned large-sized retention ponds can cause significant loss to forest and wetland ecosystems. 21 0 obj Eliminate the Need for a Detention Pond with Permeable Pavers. The main difference between a detention basin or retention basin, is the presence or absence of a permanent pool of water, or pond. Treatment is accomplished through the stabilization of organic wastes by aerobic bacteria and algae. Protect Your Community from Flooding with TrapBag. And . The lower stages of an extended detention basin can detain runoff from the stormwater quality design storm for extended periods of time, thereby promoting pollutant removal through sedimentation. Lets take a look at some of the pros and cons of each stormwater containment option. n:'6(l]HJ{6| YaLZ]W[;|D't?zU3%0;?7t&j={'E: n.=\ll|YFn*L}H3. Whether you need to manage the stormwater for a park, parking lot, neighborhood, or housing development, installing TRUEGRID permeable pavers in place of regular asphalt or cement is the most efficient way to do it. These ponds serve as a collection and storage place for stormwater to drain into. The retention time promotes pollutant removal through sedimentation and the opportunity for biological uptake mechanisms to reduce nutrient concentrations. The basic difference between retention and detention ponds are that retention ponds remain full/wet, whereas detention ponds dry out between storms. endstream Based on the advantages and disadvantages listed above, it would seem that a retention pond (wet pond) is more useful than a detention pond (dry pond); however, depending on the goal or particular need of an area, one pond may make more sense than the other. oKz~[_Zn[U/_Z x2}[[oJ.O_[/k^m~|5J~[\%{Z NCh{!@8]{p.9x^AA* yU2)GbD_.GZ d[GO[tZWv/uK^iMn ^4tM4_i_ B[T[oa0k*ov{k}GIW ePRw4aW/L&i rkUd $_L}~NTA~u]oN2 endobj Can become a mosquito breeding ground. To prevent overflowing, they also have a small outlet for water to go out safely. The inlet needs to be not more than 15% higher than the outlet to ensure the correct amount of water flow through the system. This is particularly true when it comes to multipurpose uses. Its a natural means to collect and store stormwater. You also have the option to opt-out of these cookies. endobj jh#zf[HehQ-\Cz_dO).vykjKAfIr`r[oT]}cUu>)svJW=f9gvnf_`8T 3 Er7`zw629)c9Ji`WC ",~?jG3'h0" 9 0 obj They can also be used for recreational activities. Create an eyesore that may decrease property values, Can sometimes be used for recreational purposes, Can decrease water quality and be an eyesore if poorly designed, TrapBag Stormwater Containment Solutions. 1.1 Variations and Alternative Names - Detention ponds - Detention basins - Dry extended detention basins or ponds - Dry ponds 2.0 A DVANTAGES & L IMITATIONS 2.1 Advantages They can be used in smaller areas as compared to dry ponds, i.e., homes with large outdoor areas are suitable. Residential: YesCommercial/industrial: YesHigh density: YesRetrofit: YesContaminated sites: YesSites above vulnerable groundwater: Yes (with liner), Peak flow reduction: GoodVolume reduction: PoorWater quality treatment: MediumAmenity potential: GoodEcology potential: Medium. 2 0 obj What you need to know. In this HelpSaveNature article, we shall look at the differences between these pond types along with their pros and cons. Retentionponds can provide both stormwater attenuation and treatment. <> The stored water will change the water level, and basins should be designed to function in both dry and wet weather.Quantity can also be influenced by the amount of water that can be allowed to infiltrate into the ground if there is no risk to groundwater quality. endobj This detention pond maintenance fact sheet will provide the information and the contacts you need to operate a fully functional detention pond on your property. In most cases, the orifice is part of a metal or concrete structure called a riser. Unfortunately, detention basins often become breeding grounds for mosquitos and detract from property values. They also are unable to improve water quality. . Retention tanks can be made in any space where at least 2-3 acres of space is available. If there is no fence around the detention pond and vegetation isnt regularly culled, youre guaranteed to end up with a closer relationship with Mother Nature than you may have wanted. Other maintenance includes: hbspt.cta._relativeUrls=true;hbspt.cta.load(216551, 'bf87548c-9ed6-4331-9ef4-f16ff41b7f8e', {"useNewLoader":"true","region":"na1"}); Stormwater Basins: How Detention and Retention Ponds Work. Both dry detention and wet detention can be planned in a good way to provide an . The main difference between a detention basin or retention basin, is the presence or absence of a permanent pool of water, or pond. These include aerobic, anaerobic, and facultative ponds. The saltwater naturally forms a vertical salinity gradient also known as a "halocline", in which low-salinity water floats on top of high-salinity water.The layers of salt solutions increase in concentration (and therefore density) with depth. You can either spend the massive upkeep costs to keep your pond in perfect working order, or you can let it slowly degrade into a marshy swamp that brings down the property value of everything around it. Detention ponds are best suited for areas with poorly draining soil. The basins are important for storing and slowing stormwater runoff from nearby areas, especially areas with asphalt or concrete development. endstream A dry pond is typically used in areas with 10 or more acres of land, as any smaller area may have trouble controlling the quality of runoff. Basins should not be built on, but can be used for sports and recreation. Just like detention ponds, retention basins are the perfect breeding ground for mosquitoes. They also release stormwater back into the sewer system at a normal rate, as opposed to flooding the sewers with water that would have normally sunk into the ground. Wet ponds, or retention ponds, are man-made basins which have a permanent pool of water. They also facilitate some settling of particulate pollutants. Fairfax County, Virginia - Stormwater ponds capture, control and filter runoff from roofs, roads and parking lots before it enters our local streams. 9w.OW x2 eM';j OB"#A}zC 3tkIt@v~o? A typical wet detention pond design is shown in Figure 1. Instead, they maintain a certain amount of water, achieved by underground pipes. one pond may be better suited than the other. Also, removing sediment and debris from the pond before it reaches the outlets and beautifying the surrounding banks with grass, shrubs, and other vegetation. The temperature of the water inside the retention pond generally rises by a significant amount. Wet ponds allow incom-ing stormwater runoff to replace pond water. Detention ponds are dry and have a bottom orifice level. Retention ponds are a great way to store and treat stormwater, allowing you to control the quantity and quality of water within it. Remove debris around and in ponds before it reaches the outlets to prevent problems. All of the common detention pond problems can be eliminated while still expertly managing local stormwater with permeable pavers. The construction of a basin is a popular form of stormwater management. Retention ponds should be surrounded by natural vegetation to improve bank stability and improve aesthetic benefits. The grass on the forebay helps prevent erosion from constant inflows of water. In some cases, its even safe to use retention ponds for recreational purposes. 15465 Pine Ridge Road Detention ponds are best suited for areas that are around 5-10 acres in size. So, in conclusion, both ponds will effectively manage stormwater. A well-designed, regularly maintained detention pond should never become gross and putrid, as most . Both types have their uses depending on the general climate and topography of the area. Mosquitos bring disease, and deadly creatures like alligators love to prowl around detention ponds. [1] [2] [3] It is used to manage stormwater runoff, for protection against . The advantages of detention basins include the cost. Stormwater management plays a critical role in protecting our lakes, streams, and rivers from erosion and pollutants from land development. Detention depths may be constrained by system inlet and outlet levels. BX vU&Rlr"`G [ QobPMq"#%%>%Xl,MY,6gr_&MQ9Hl_S$3;p^U WggLgSn.^z8?|/v^8J^@u6^]T^:dj}'*IvRt}=m W2Zs.@$~dFE)RH-M l{ The purpose of stormwater management is to make sure that different facilities are doing their part to protect the environment and prevent nonpoint source pollution. Dry ponds, or detention ponds, are man-made basins which hold water temporarily and are designed to help floating pollutants and particles to settle, while gradually emptying themselves in a controlled flow. Detention ponds can also carry the risk of disease or contamination. <> Maintaining these ponds can cost 7-8 percent of the construction cost annually, which is actually slightly higher than that of retention ponds. 22 0 obj A retention pond looks like a regular pond, but plays an important role in controlling stormwater runoff. QuantityPonds can be designed to control flow rates by storing floodwater and releasing it slowly once the risk of flooding has passed (also known as a balancing pond). They collect the water and slowly release it at a controlled flow to avoid flooding and erosion of soil from the surrounding area. They often require less space than wet retention basins. Areas with higher populations require more rigorous stormwater management because pollution is higher. The minimum detention time of a pond is 45 days. By capturing and retaining stormwater runoff, wet retention ponds control stormwater quantity and quality. Dry ponds are not very attractive; hence, they may decrease the value of the property. <>/Font<>>>/MediaBox[0 0 612 792]>> Inlets, outlets & control structures overview, National Standards for Sustainable Drainage, Flexible infrastructure/climate change adaptation, Good removal capability of urban pollutants, Can be used where groundwater is vulnerable, if lined, High potential ecological, aesthetic and amenity benefits, Anaerobic conditions can occur without regular inflow, Land take may limit use in high density sites, May not be suitable for steep sites, due to requirement for high embankments, Colonisation by invasive species could increase maintenance. Schematic of a basic extended detention baisn . 18 0 obj Retention basins are safer than detention ponds because they actually improve the quality of the water they collect. Copyright 2023 Airlite Plastics Company & TRUEGRID Pavers. Ft#sqD|)qr vDu Stormwater Management: Retention and Detention Ponds, Pennsylvania Facility Management Services. Figure 2. A detention pond can cost less to implement than a retention pond because they are generally smaller (even if the range for depth is larger) Disadvantages A detention pond still. Retention ponds are fed by underground pipes, which allows high quantities of water to fill the pond. When stormwater runoff cant absorb into the ground because impervious surfaces like sidewalks and roads block absorption, it must continue to flow. Retention ponds are typically built in areas with natural vegetation and are filled through underground pipes that connect storm drains to the pond. Now that you have learned about the major differences between detention and retention ponds, you can take an appropriate decision as to which one you would like to construct, and this can be made better by making it a community project, by building one for your entire locality. Fort Myers, FL 33908 These include drowning, exposure to contaminants, and a higher amount of mosquitos which can cause increased disease. m}~pPeh'/H+:Z~PO{izUG[4@'a5uIUWI{r AwOU[XkotJ^JDB]$% pP2A=-__T[5O :-fS0'[t!(!AD#AySAuJv;$YL1d|iqvl p.E~0W Specifically, they allow part of your land to be set aside for drainage purposes to protect your home and surrounding areas from water damage. An example of typical detention ponds in Malaysia from MSMA are highlighted in Figure 3. A stormwater detention basin is an area that has been excavated so that during storms, excess water can be held. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Mapping Inequality: Redlining in New Deal America. Perceived health & safety risks may result in fencing and isolation of the pond. But before constructing a detention or retention pond, you must understand the difference between the two flood control ponds. This leads to a smelly, greenish-brown pond that can easily flood into nearby areas. <>/Type/XObject/Subtype/Image/ColorSpace/DeviceGray/Name/im1/Width 1926/BitsPerComponent 1/Length 2956/Height 2190/Filter/CCITTFaxDecode>>stream Unlike detention dry ponds, retention ponds do not release water at a controlled rate through stone riprap. The disadvantages of detention basins include their large space requirement. The system allows for large amounts of water to enter the pond, and the outlet lets out small amounts of water as needed to maintain the desired water level. Advantages & disadvantages Where component can be used Residential: Yes Commercial/industrial: Yes High density: Unlikely Retrofit: Unlikely Contaminated sites: Yes (with liner) Vegetation acts as a natural filter that can improve water quality. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603. Extended detention basins are designed for complete evacuation of runoff and normally remain dry between storm events. (. There are two types of ponds that are commonly used to control storm water and floods after heavy rains - retention ponds and detention ponds. Inlets, outlets & control structures overview, National Standards for Sustainable Drainage, Flexible infrastructure/climate change adaptation. Retention basin in Pinnau, Schleswig-Holstein, Germany. Unfortunately, the people responsible for having detention ponds installed usually dont have access to the kind of experts needed to keep them in top shape. After its contaminated, it can enter our waterways. Extended detention basins are designed for complete evacuation of runoff and normally remain dry between storm events. (njstormwater.org), TrapBags can form a containment pool or large pond in a short time. Copyright 2023 Wessler Engineering. In Fairfax County, the construction of stormwater ponds became a requirement for new development in the 1980s. However, basins can also be mixed, including both a permanently wet area for wildlife or treatment of the runoff and an area that is usually dry to cater for flood attenuation. <>stream The setup also has to be checked for accumulation and blockage by sediment or debris. Extended detention basins are used to address both the stormwater runoff quantity and quality impacts of land development. Instead of having a pleasant pond to look at year-round, a detention basin drains and dries over time, creating an eyesore in the process. To fix this problem, many cities have opted to build stormwater basins areas that collect water during rain events to better manage stormwater runoff. 0 The minimum detention time of a pond is 45 days . Runoff from each rain event is detained and treated in the pond until it is displaced by runoff from the next storm. between the two that may determine which method you choose to protect your home, property, or business. What are the disadvantages of an open water system? In a natural environment, rainwater is absorbed by vegetation and soil, allowing only a small amount of rainwater to run off the surface of the ground and into lakes, streams, and rivers. Regular checking for erosion, and damage to the slopes and outlet devices has to be checked. Negative water quality impacts if not properly designed. The disadvantages of detention basins include their large space requirement. On smaller sites, it is difficult to control water quality and other options may be more appropriate. The stored water will change the water level, and ponds should be designed to function in both dry and wet weather. https://www3.epa.gov/npdes/pubs/industrial_swppp_guide.pdf, https://info.wesslerengineering.com/blog/stormwater-basins-detention-retention-ponds, https://www.cleanwateraction.org/features/stormwater-pollution, https://www.delawareriverkeeper.org/sites/default/files/resources/PressReleases/Safety%20Detention%20Basins%20Annotated%20Biblio.pdf, http://www.ucdenver.edu/faculty-staff/jguo/Documents/papers/(SP6)SAFETY%20OF%20DETENTION%20AND%20RETENTION%20PONDS.pdf, https://www.njstormwater.org/pdf/tech_manl_6_4_extended_detention_basins.pdf. endobj Order Now An extended detention basin is a detention basin built to hold stormwater runoff for up to 48 hours. Detention ponds are best suited for areas that are around 5-10 acres in size. Potential for negative water quality if not designed right. But, depending on the size, location, city ordinances in place, aesthetics, multipurpose uses, neighborhood concerns, etc. endobj 2 Aerobic Ponds contain dissolved oxygen (DO) throughout the entire depth of the pond all the time. The most common way of managing storm water is creating man-made storm water basins. A lot of land is required to design an effective retention basinand the risks of designing an ineffective one can be severe. Can detract from property value, whereas retention ponds may add value. Because detention ponds are designed to hold water temporarily, they have an opening, or orifice-like drain, at the bottom of the pond. In order to prevent these hazards from causing a negative impact, detention ponds must be well maintained and built properly. Retention ponds are designed to hold a huge volume of water at one time and then release it gradually into outlets. Detention ponds are artificially created ponds near parks, neighborhoods, housing developments, and other areas with a lot of impermeable pavement. Lets take a look at some of the pros and cons of each stormwater containment option. Both have to deal with aeration of the water being treated, but in ponds, oxygen is transferred directly into the water across the surface area without the need for any equipment. Best Management Practices and Shoreline Protection Methods. VV/Fd@ Contact They can also negatively impact water quality if they are designed poorly. However, there are some. Common Detention Pond Problems. Poorly designed retention ponds can actually decrease the quality of the water they collect. Unfortunately, detention basins often become breeding grounds for mosquitos and detract from property values. W&+I4@aI\'@ This is land that could have been used for additional parking, homes, or any other purpose. AmenityBasins offer many opportunities for the landscape designer. While the detention pond may require some additional upkeep due to it having both wet and dry stages, maintenance is fairly easy for both systems. Dry detention ponds use only a very gentle slope and often have plant life surrounding them to provide extra protection. Stormwaterrunoffoverwhelms city sewers and can damage nearby streams and rivers through erosion. n7GPex%qT/{e8O [/DB) ]o}l Y#(l%NnfOY=T\)0f49V+?!=GUm1 O_ They are surrounded by natural vegetation which helps prevent erosion. Call or email and our engineers or customer team will be happy to help. Basins are designed to collect water and release it slowly enough to avoid floods and erosion. 636 0 obj <> endobj

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