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CURRENTS VOLUME 17, NUMBER 3 SUMMER 2015

KIDS’ FISHING DERBY RESULT OF MASSIVE STREAM RESTORATIONS Matt Fredmonsky, Project Manager, The Davey Tree Expert Company A Virginia community’s efforts to restore severely eroded streams did more than restore the waterways’ health— the residents inadvertently strengthened their sense of community through the unexpected creation of a kids’ fishing derby. In 2000, members of the Reston Association (representing nearly 60,000 residents of Reston, Virginia) published a white paper, which identified degraded streams across Reston that were in need of restoration. The streams, Snakeden Branch, Colvin Run and The Glade, were actively eroding and contributing to

sedimentation and water quality issues in Reston’s many lakes and ponds. “When Reston was developed in the 1960s it was a planned community,” said Nicki Bellezza, watershed manager for the Reston Association. “So they planned to preserve open spaces, but they didn’t plan for controlling the storm water. All of our outfall pipes lead directly to open areas. The whitepaper explained how run-off from the impervious surfaces in Reston was contributing to stream degradation, which saw our lakes filling in with accumulated sediment and creating an (continued on pg.. 4)

Photo: Before Survery For Scale courtesy of Matt Fredmonsky

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EDITOR’S CORNER This issue of Currents features several articles highlighting recent trends in green infrastructure and low impact development. One article explores advanced rainwater harvesting systems to manage harvesting volume while minimizing wet weather. This system employs automated controls to make adjustments to valves to maximize rainwater harvesting while managing storm runoff peaks by releasing the predicted quantity of stormwater runoff before the storm based on cloud-based weather forecasting. Another article explores the need for public outreach and regulatory framework in order to gain acceptance of the long term implications of adoption of green infrastructure in terms of funding of initial costs and long term maintenance. Green infrastructure has gained acceptance in recent years based in part on a growing track record for successful implementations. Recently, natural disasters such as the historic drought in California have forced green infrastructure and other measures to be implemented in order to conserve water. As covered in news media, Governor Jerry Brown recently signed Executive Order B-29-15 to require water use reductions of 25 percent for potable water use due to the historic reductions in rain and snow over the last four years. Water conservation will be achieved through a number of different means, including green infrastructure. Acceptance of these measures requires public outreach to educate the public on the nature of the problem, why it is important to them, and what they can do to help address the problem. A good example of a public outreach website for water conservation policy, currently being utilized to educate the public on the drought conditions in California and ways they can save water, is “Save Our Water”. This website can be found at http://saveourwater.com. This issue of Currents marks my last as Newsletter Editor. It has been a pleasure to share water resources and environmental stories with you over the last five years. I continue to encourage you to share your announcements and articles for inclusion in issues of Currents, EWRI e-Updates, or inclusion on the web portal EWRI Collaborate. Please check out EWRI Collaborate at http://collaborate.ewrinstitute.org/home when you get a chance – the more active users we have, the more dynamic our portal will be! Please contact me at jweiland@wadetrim.com as well as Veronique Nguyen of ASCE at VNguyen@asce.org with your articles, announcements, and other content you would like to share. We look forward to hearing from you!

TABLE OF CONTENTS Kids’ Fishing Derby Result of Massive Stream Restorations Matt Fredmonsky, Project (pg.1) Advanced Rainwater Harvesting for Urban Stormwater Management (pg.7) Glimpses of the Ancient Hydraulic Civilization of Sri Lanka (pg.8) Implementing Green Infrastructure – Executing for Triple Bottom-line (pg.10) USACE Releases a Report on Screening-Level Assessment of Projects with Respect to Sea Level Change (pg.14)

Connect, Engage & Share with your colleagues through

www.collaborate.ewrinstitute.org

John Weiland Communications Council Chair Follow & Tweet us @ ASCE_EWRI wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015


ADDRESSING SERIOUS FAUX PAS BY SPEAKERS AND VOLUNTEERS Karen C Kabbes, PE, D.WRE, EWRI Past President At this year’s EWRI Congress, we had two very visible situations in less than three days that made some of our attendees very uncomfortable and it wasn’t even related to runoff curve numbers or climate change.

quip to deal with situation right there and then. But alas, that is not a skill set most of us possess while standing on stage, stunned speechless, in front of hundreds of people.

A speaker in our opening session threw in a gratuitous image that could have been from the 1990’s beach show Baywatch. Fortunately, the rest of his presentation wasn’t as out-dated, but it certainly distracted from his message and professional image. Later in the week a presenter at the student luncheon used a joke that may work when he and his wife are out for dinner with some old friends, but was definitely not on the Toastmaster’s list of acceptable greetings. It did not give him the opening he was trying to achieve.

So we ask for your help. Should this happen again, please do not feel that you need to be offended in quiet. Let our ASCE EWRI staff know your concerns and they will treat them with the outmost respect, discretion and professionalism. In the meantime, let this article be a reminder to folks that these actions are never acceptable in our professional organization.

So to all of you that attended our conference and were made to feel uncomfortable at either of these events, we are very sorry. These are not the values we represent and we will do our best to make sure it doesn’t happen again. Our members and presenters generally do not try to offend and do so unintentionally. However, their words and images can yank away the welcome sign, just at a time when our organization is becoming increasingly more diverse and more widely engaging of younger members. Hindsight is great. We wish we had verbally quick witted leaders at both events that could have presented the perfect

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(continued from pg. 1)

Photo: Before courtesy of Matt Fredmonsky

expense associated with frequent dredging. “We have a strong volunteer base and highly educated people who live in Reston,” she said. “Some of those residents were on our environmental advisory committee and also did stream monitoring, and they saw our streams were degrading.” Planning a Solution To address the problem, the natural and cultural resources consulting firm Wetland Studies and Solutions, Incorporated (WSSI), a subsidiary of The Davey Tree Expert Company, partnered with Virginia-based firm The Peterson Companies to establish the Northern Virginia Stream Restoration Bank (NVSRB). Under federal and state law, a property owner or public works agency that needs to impact streams may compensate for these impacts by purchasing credits to satisfy permit requirements. By law, such impacts must be avoided and minimized first. These credits are sold by a

stream mitigation bank located within the same hydrophysiographic province and the same (or adjacent) eight-digit hydrologic unit code. WSSI started planning and developing the NVSRB in 2003. The NVSRB includes over 11 total miles of stream across the three separate watersheds. Snakeden Branch accounts for about 4 miles, The Glad about 4 miles and Colvin Run accounts for about 3.5 miles. The stream restoration design process started on Snakeden Branch, the first watershed, in 2006. “The neat thing about this restoration project is that it includes long, continuous reaches of streams that start at the end of outfalls, where the streams first become open channels, and it extends for several miles to the downstream terminus,” said Scott Petrey, a senior associated engineer at WSSI. “It’s highly beneficial to the watershed when you can restore several miles of continuous stream versus just 1,000 feet or 2,000 feet within the

wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015

middle of a much larger degraded system.” WSSI tackled each watershed individually and divided the streams within each watershed i nto ma na geable reaches that were restored one at a time. “It’s hard to develop one plan set that encompasses about 4 miles of stream restoration, so we started with the hydrologic model to develop the flow rates for the stream,” he said. “We then broke the streams up into reaches that were several thousand feet in length, based on similar flow rates, and restored those sections. Ultimately, Snakeden Branch was broken down into 17 individual reaches and 10 construction plan sets with each plan set needing approval from the United States Army Corps of Engineers (USACE), Virginia Department of Environmental Quality (DEQ), Fairfax County and Reston Association officials before stream construction could start.” The streams within the NVSRB were restored


Photo: 8 Months After courtesy of Matt Fredmonsky using Natural Channel Design (NCD) principles. Through the use of NCD, engineers at WSSI sought to restore the hydraulic and ecological function to Reston’s degraded streams by mimicking, to the maximum extent practicable, the dimension, pattern and profile of a natural, stable stream channel. The connection between the streams and their floodplains was reestablished to allow flow events greater than bankfull (approximately the one-year storm in urban watersheds) to access, spread out and slow in the floodplain. The design process included completely documenting existing conditions to determine the extent of erosion and identify the best restoration solution. Engineers conducted geomorphic studies, surveyed cross sections and created longitudinal profiles to classify the streams and map the slopes prior to design and construction. The design engineers also examined streambed material by taking pebble counts and bar samples. By determining the size of material on the stream bed the engineers could predict the stability of the

proposed channels and how big a storm event would be needed to move the material. Traditional surveys also were conducted to locate and identify existing infrastructure, such as the 55 miles of trails, associated bridges, culverts and sewer lines interacting with the watershed. WSSI survey-located, identified and tagged more than 30,000 trees. For construction, WSSI contracted three separate, private earthwork firms specialized in stream restorations. To manage construction, WSSI provided full-time construction oversight that included performing progressive, as-built surveys. Petrey said WSSI’s use of progressive as-built surveys saved time and money. “It allowed us to keep track of what was going on as the stream was under construction and, if problems arose, the contractor could was on site to fix it right away versus having to go

back and fix something after construction was complete,” Petrey said. “A WSSI employee was on site every day during construction to ensure work adhered to the design plans. The design engineer visited the site periodically as another level of quality control to make sure the design was implemented as the engineer envisioned it.” Following construction, each reach was planted with a diverse mix of vegetation native to northern Virginia. Plantings along the stream banks and riparian areas were typically 1-gallon pots, planted at 640 stems per acre. Plantings along the water’s edge were tubelings or livestakes planted at 1 foot on center. Each site was seeded with a native riparian mix that included a variety of flowers, trees, shrubs, sedges and grasses. Construction finished on Snakeden Branch in 2009 and on The Glade in 2010. Colvin Run has been designed and

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about 1 mile has been constructed to date.

an increase in birds, dragonflies and other native insects and wildlife near the streams.

Monitoring the Results To date, WSSI has restored about 8 miles of the approximately 11 miles total identified for restoration as part of the NVSRB. The results are obvious, as some stream beds that eroded as much as 8 feet below the natural bank top and were disconnected from the floodplain have returned to a healthier state. Reconnected with their floodplain, streams that had barren, undercut stream banks are packed with lush, natural vegetation. The streams have returned to a more natural hydraulic cycle, which equates to less erosion. As a result, less sediment flows into the community’s ponds and lakes, so the cost associated with dredging has fallen.

WSSI will monitor the project for 10 years after construction—some of the reaches are already in their sixth growing season. All sites currently being monitored have met or exceeded monitoring requirements. Petrey said the few miles of stream that are yet to be restored will see construction as developers impacting streams buy more credits from the NVSRB. “We’re continually selling stream mitigation credits,” he said. “Once we sell the available credits, we’ll restore another section—thereby generating more credits and revenue to fund the restoration.” A Fishing Derby is Born

“Instead of being in these eroded earthen conduits, where even the largest storm events are contained in the stream channel, the streams now overtop their banks in the bank-full event,” Petrey said. “And that helps to reduce flood-flow velocities, which further reduces stream bank erosion.” Reston residents also have reported seeing

Arguably one of the biggest benefits of the restoration has been the annual Kids’ Fishing Derby, which was held for the fifth time this spring and drew more than 500 registrants— including more than 350 children—in March. The derby is made possible through a partnership between WSSI, the Reston

Association, the Virginia Department of Game and Inland Fisheries (DGIF) and Northern Virginia Trout Unlimited (NVATU). The idea for the derby, which started in 2011, came from Brent Clarke, who was then a volunteer member of the DGIF board of directors and whose daughter lives in Reston with her husband and three sons. “I was actually walking down one of the paths by a restored section of stream one day when I realized it would be an ideal place to hold a fishing event for children because Reston is full of kids, many of whom have never fished before,” Clarke said. The derby partners all agreed and set to f ig u ri ng out t he log ist ics. Snakeden Branch is too shallow and warm to sustain a trout population. Each year WSSI pays for and coordinates the delivery of about 400 trout from a private hatchery. Volunteers from WSSI, Reston DGIF and NVATU stock the stream with a mix of about 300 standard rainbow trout varying from 10 inches to 13 inches in length and 100 breeder trout that weigh 2 pounds to 3 pounds each. DGIF has a pick-up truck with a live well in the bed that is used to transport the fish from the hatchery truck down to the somewhat remote stream. On the day the derby is held, volunteers from all four organizations work to register participants, help children reel in and catch fish and even filet the catches so children and parents can enjoy fresh fish at home later that day.

Photo: 2.5 Years After courtesy of Matt Fredmonsky

wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015

The 2015 derby was the largest yet, Bellezza said. “It gets people out to the stream and gets them interacting with their watershed, which they may not have done if we didn’t offer the derby,” she said. “Sometimes it’s cold, sometimes it’s


rainy, but we still get a lot of people out fishing.” John Odenkirk, a biologist with DGIF, said the Reston derby’s success has been remarkable compared to other fishing derbies held in Virginia.

ADVANCED RAINWATER HARVESTING FOR URBAN STORMWATER MANAGEMENT Marcus Quigley, P.E., D.WRE with OptiRTC, Inc.

“Years ago we used to try to have hunting and fishing events and we would advertise, and almost nobody would show up and we would scratch our heads,” Odenkirk said. “I don’t know if it’s the trout, or the (Reston) community. It’s amazing to me the number of kids that show up and how young they are, and the fact a high percentage have never fished before.”

For more information, contact Scott Petrey, Senior Associate Engineer, Wetland Studies and Solutions, Inc., at 703-679-5600.

Low impact development and green infrastructure initiatives are improving urban water management in cities across the country. Rainwater harvesting, for example, is a sustainable management practice which can reduce runoff to streams and rivers and lower potable water demand; however, stormwater detention requirements must also be met. Typical rainwater harvesting systems are often unable to meet the competing objectives of minimizing wet weather discharge while maximizing harvesting volume where demand is insufficient relative to runoff, or otherwise unreliable. This typically results in the need to construct redundant storage for stormwater control and harvesting. However, recent innovations in Internet-of-Things technologies make it possible to use one tank to meet both objectives. By retrofitting or designing rainwater harvesting systems with an automated drain valve and integrating weather forecast information, engineers are able to optimize existing infrastructure in unique ways. Such systems have been deployed on sites across the country, including EPA headquarters in Washington D.C. These new systems, including one by Boston, MA based OptiRTC, Inc. are being deployed on cloud based platforms that automatically monitor the weather forecast and calculate expected runoff volume from future storms. They then automatically open the discharge valve in advance of the storm and release a predicted volume equal to the potential runoff. As the forecast changes, the systems adjust intelligently. Before the storm begins, the systems close the valve, allowing rain to refill the cistern. The valve remains closed until another rain event is in the forecast, ensuring water is available for reuse. In water quality applications, the system parameters can be adjusted to hold captured water as long as possible, providing the water quality benefits of longer detention periods. This active water management solution is particularly powerful in urban areas where space is not available for more traditional stormwater management practices. The flexibility of intelligent predictive controls is also evident in its adaptive management abilities. Managers are able to monitor, evaluate, and adjust logic parameters of the logic to optimize performance over time, a cost-efficient solution in an industry that is often tied to costly construction projects and design modification. As in the case of advanced rainwater harvesting for stormwater management, technology innovation in the stormwater industry will enable more efficient and adaptive solutions for cleaner water and safer cities.

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G L I M P S ES O F T H E A N C I EN T HYDRAULIC CIVILIZATION OF SRI LANKA A. M. Wasantha Lal, Ph.D., P.E., D.WRE, M.ASCE South Florida Water Management District, West Palm Beach, Florida The ancient hydraulic civilization in Sri Lanka has given us many examples of sustainable and eco-friendly methods of agriculture, water management, land use management, farming, forest management, and sociological practices that are worth studying when looking for better methods for the future. The approaches used in ancient Sri Lanka were comprehensive, and cover not only aspects of conservation and self-reliance, but also sociological and spiritual well-being. The irrigation system in Sri Lanka dates back at least 2500 years. The classic engineering text “Design of Small Dams” published by the US Bureau of Reclamation (USBR), mentions about one of the dams built in Sri Lanka in 504 BC that is 11 miles long 70 ft high. The ancient irrigation system in Sri Lanka flourished with the arrival of the Aryans from the Ganges river valley of India around 540 BC. One of the ancient cities, Anuradhapura was established by Sinhalese King Pandukabhaya (437 BC – 367 BC) who was one of the Aryan descendants, in order to provide drinking and irrigation water to a large population living around the city. Two main ancient kingdoms covered the northern and north central Sri Lanka during the early period of the hydraulic civilization. Anuradhapura kingdom was powerful during the period between 437 BC and 585 AD, and the Sinhalese kings ruled the country from this central city. The capital was moved to the second city Polonnaruwa during the period between 846 AD and 1302 AD because of South Indian invasions. Even today, about 12,000 of the reservoirs built during the period are being used for water supply purposes. About 300 of these reservoirs are considered as large reservoirs. The sustainability of the present population in the North Central

Sri Lanka depends on these ancient irrigation works. Modern irrigation projects such as the Mahaweli project is built around the ancient irrigation works. The modern projects contribute primarily to trans-basin diversions, while the ancient systems were based on self-sufficiency and sustainability. Both reservoirs (tanks) and Buddhist places of worship (Dagobas and Sthupas) were parts of village settlements of ancient Sri Lanka. The Ancient Sinhalese excelled in the construction of both as evident from the ancient ruins which display a variety of architectural forms. The irrigation systems consisted of methods of water storage, conveyance, control, and policy. Out of the three main components of ancient irrigation systems, reservoirs were designed to collect and store water to be used for cultivating two seasons. Some of the earliest include the Abhayawewa in Anuradhapura by King Pandukabhaya during (437 BC- 366 BC) and Tissawawa in Anuradhapura by King Dewanampiyathissa during (307 BC - 267 BC). Two of the largest are the Parakrama Samudraya (135 mcm., 22.1 sq. km..) built by King Parakramabahu (1153 AD- 1186 AD), and Minneriya tank (136 mcm volume, 18.9 sq. km. area) built by King Mahasena, (276 AD-303 AD). Most ancient reservoirs used earth dams. The dam built for the Parakrama Samudra reservoir is 12.3 km long and 15.8 m tall. The dam for the Minneriya reservoir is 2.3 km long and 20.4 m tall. There are hundreds of similar ancient reservoirs spread throughout the country as can be seen even today serving the population of Sri Lanka even after thousands of years. Canals constitute the second most important component of ancient irrigation systems. Giant

wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015

A sluice gate used during the Polonnaruwa period in Sri Lanka (8th to 13th century).


Kala Wewa reservoir built by King Dhatusena in the 5th century. The photo shows the riprap used for bank protection during ancient times.

A statue of King Parakramabahu (1153-1186 AD) built next to Parakrama Samudra (Sea of Parakrama)

canals or “Yodha Elas” have been built in the past to convey water from the reservoirs to major irrigation fields in the dry zone. Minipe canal and Elahera canal are only two of the canals that were built during ancient times to convey water. According to Mahawansa, the ancient chronicle on Sri Lankan history, King Wasabha (67 AD – 111 AD) constructed the canal which includes a diversion structure constructed at Elahera across Amban river (a tributary of Mahaweli river), which starts from the foothills of the town of Matale. This huge canal conveyed water from this point to Minneriya, Giritale, and Kantale reservoirs. The first stretch of this is 20.75 miles long. The Minipe diversion carried water from Mahaweli river to Amban Ganga river. King Dasankeliya (459 AD) constructed this and it irrigated the left bank of Mahaweli River. The low slope and the meandering design of the canal allowed the canal to have a large area to collect a significant volume of water, and deliver to the city of Anuradhapura located far away from the wet zone. Control structures are the third important component of ancient irrigation systems. Engineers in ancient Sri Lanka recognized the value of control structures to deliver the correct amount of water in an irrigation system. Invention of the “Biso-kotuwa” (meaning queen’s enclosure in Sinhalese) in 3rd century BC was key to regulation of the outward flow of water from large reservoirs. A number of

these ancient hydraulic control structures can be seen in the cities of Polonnaruwa, Anuradhapura, and a number of other places. Water policy is the fourth important component of ancient irrigation systems. Traditional methods of water management included consideration of water policy, agricultural management practices, and programs for the community to participate in public infrastructure maintenance. A noteworthy example of water policy statement by King Parakramabahu (1153 AD-1186 AD) states “let not a single drop of water flow to the sea without serving the mankind” which is carved in rock inscriptions near the ancient city of Polonnaruwa and emphasizes the importance of water to sustain large populations in north central Sri Lanka. The signs of the sun and the moon carved out on ancient hydraulic structures emphasize the long term sustainability of the ancient irrigation systems designed under the ruling kings. Many components of the ancient irrigation system of Sri Lanka were abandoned after many south Indian invasions and the European occupations in the 16th century. However, the current irrigation system is based on many visible remnants of the ancient system. Numerous scholars who have studied it, including the early Europeans have been fascinated by its level of sophistication.

INTERNATIONAL PERSPECTIVE ON WATER RESOURCES AND THE ENVIRONMENT Colombo, Sri Lanka I January 4-6, 2016

If you are interested in topics related to Hydraulic Civilzation, Regional Water FOR ABSTRACTS Resources Case Studies,CALL Rural Water Supply Sanitation, Coastal and Tsunami topics in to Sri Lanka, as well as other developing nations,, be sure to attend the 2016 IPWE Conference in Colombo, Sri Lanka. Registration Opens Soon! CALL FOR ABSTRACTS

ASCE-EWRI invites you to submit abstracts

For more information visit the conference website at

to IPWE 2016. This conference will cover a wide variety of topics on sustainable environmental and water resources

www.ipweconference.org

management. While technical sessions will include topics on developed and developing countries, much of the focus of this conference will be on water resources and the environment in developing countries.

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IMPLEMENTING GREEN INFR ASTRUCTURE – E X E C U T I N G F O R T R I P L E B OT TO M - L I N E Donald D. Carpenter, P.E., Ph.D., LEED AP, Professor and Director, Great Lakes Stormwater Management Institute, & Sanjiv Sinha, P.E., Ph.D., Vice President, Environmental Consulting & Technology, Inc. Communities are struggling with a set of problems concerning stormwater management. Aging systems are rapidly degrading and need costly repairs and/or updates. Regulatory requirements are increasing and are thus impacting the cost of stormwater management. A key question is who should be responsible for paying for those costs – the community or the consumer? Innovative solutions to address these correlated and increasing problems are needed. One such solution used by communities is to replace some traditional grey infrastructure with green infrastructure. Green infrastructure is an approach to water management that protects natural drainage patterns and mimics the sites’ natural hydrologic cycle. A comprehensive green infrastructure program can cleanse stormwater, conserve ecosystem functions, and provide a wide array of social benefits to the community. Green infrastructure solutions can be implemented on differing scales ranging from site-level installations to watershed-level efforts. On the local scale, green infrastructure practices include rain gardens, permeable pavements, green roofs, infiltration planters, trees and tree boxes, and rainwater harvesting systems. At the watershed scale, green infrastructure includes comprehensive planning including the preservation and restoration of natural landscapes such as forests and wetlands. Despite its many benefits, large-scale implementation of green infrastructure is not common in many parts of the country due to many challenges. These challenges include a lack of overarching, community-wide strategy that align with policy frameworks, a lack of regulatory drivers, a lack of upfront capital needed to build green infrastructure, and finally, long-term maintenance issues. Before green

infrastructure is more widely accepted, there needs to be a coherent effort that considers science/engineering, policy, and community engagement. Without sound science and engineering, green infrastructure elements may not adequately address water quality and ecosystem services issues, thus affecting the bottom-line cost benefits. Without effective policy, municipal ordinances and funding will roadblock green infrastructure evolving into mainstream stormwater management. Without community engagement, people will not readily accept integrating green infrastructure into their community fabric as a lifestyle choice. There is an increasing body of literature on the science-backed effectiveness of green infrastructure. While the work is hardly complete, there is a greater understanding about the design, construction, and maintenance of the wide variety of green infrastructure best management practices (BMPs) across the United States. Water resources professionals have the greatest understanding of these principles, and, generally, have the highest comfort levels with integrating green infrastructure elements into BMPs. Early reports produced by national groups, including the U.S. Environmental Protection Agency’s (EPA) Reducing Stormwater Cost through Low Impact Development (LID) Strategies and Practices (EPA 2007), suggest that green infrastructure is less costly in nearly all situations so long as one relies on “triple bottom line benefits,” which are three, interrelated categories of benefits: economic, social, and environmental. Subsequent – and more recent reports – by the Center for Neighborhood Technology (CNT 2010), Metropolitan Milwaukee Sewer District (MMSD 2013), and Water Environment

wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015

Federation (WEF 2014) also suggest triple bottom line benefits for implementing green infrastructure. Finally, a business model framework to address the lack of upfront capital needed to design, build, and monitor green infrastructure projects was put forth by the co-author (Sinha et al 2014). That business model is based upon public-private partnerships, commonly established in transportation sectors across the United States, but new to stormwater management projects. Green infrastructure implementation will not become pervasive without an educational strategy that involves citizens and decision makers alike. Planning and conceptualization are critical for acceptance. Utilizing design meetings to convey what is envisioned – and the number of benefits – can maximize acceptance for green infrastructure retrofits and its incorporation at new developments. For example, a parking lot can be reimagined to include porous pavement and rain gardens (see figure). Conceptual renderings such as this have been used to encourage communities to implement green infrastructure. In summary, engineers are good at estimating costs and computing the volume of runoff retained through these installations, but those are only relevant if green infrastructure practices are actually implemented. Therefore, the social elements of green infrastructure must be included in the process. Implementing green infrastructure is an emotional decision. A community must envision what it wants to look like in 5, 10, or 15 years. Where will the citizenry want to live, work and raise their children? While technical data is an important piece of the infrastructure puzzle that we are not discounting, we encourage water resources professionals to not underestimate


Figure : Clarkston Parking Retro Figure or undervalue the importance of the emotional response to green infrastructure.

The Value of Green Infrastructure, A Guide to Recognizing Its Economic, Environmental and Social Benefits. http://www.americanrivers.org/ wp-content/uploads/2013/09/Valueof-Green-Infrastructure.pdf?388ec0.

References •

U.S. Environmental Protection Agency (2007), Reducing Stormwater Cost through Low Impact Development (LID) Strategies and Practices

Metropolitan Milwaukee Sewerage District (2013) MMSD Regional Green Infrastructure Plan, Green Infrastructure Benefits and Costs.

Center for Neighborhood Technology and American Rivers (CNT 2010)

Water Environment Federation

(WEF 2014) Green Infrastructure Implementation – A Special Report •

S.K. Sinha, J. W. Ridgway, J.E. Edstrom, J. Andersen, P. Mulvaney, M. Quigley, and E. Rothstein (2014) A Business Model Framework for Market-Based Private Financing of Green Infrastructure.

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NATIONAL MUNICIPAL STORMWATER AND GREEN INFRASTRUCTURE AWARDS PROGRAM The National Municipal Stormwater and Green Infrastructure Awards program, has been established to recognize high-performing regulated Municipal Separate Stormwater Sewer Programs (MS4s). The objective of the program is to inspire MS4 program leaders to seek new and innovative ways to meet and exceed regulatory requirements in a manner that is both technically effective as well as financially efficient. Recognition of innovative approaches is also a highlight of this program. The call for applications is now open! ASCE-EWRI has agreed to be a liaison organization and is pleased to inform our members of this program. All submissions will be reviewed by the steering committee and all award winners will be announced and celebrated at WEFTEC this September. There will be 3 winners for each Phase I and Phase II communities in the following categories: • Winner in Program Management • Winner in Innovation, and • Overall Winner with the highest score Phase II Application – Now Open! Due Aug 19 • Apply at http://www.wefnet.org/onlineform/ms4awardsPHASEII/ • Phase I Application – Coming Soon • The application for Phase I MS4s will be available the week of July 20 and will be posted once open. Tips for submitters • Save time by preparing responses in advance - Phase II Application (PDF) • Application must be completed in one sitting. You cannot save and return to this page at a later time. To save time, please have your responses ready to input into the text fields • All questions are required, except for the Innovations Section. For any questions regarding participation in this inaugural recognition program, please send an email to MS4Awards@wef.org.

ORGANIZATIONAL MEMBERS

BECOME AN ORGANIZATIONAL MEMBER TODAY! To become an OM, please contact Gabrielle Dunkley, EWRI Manager (gdunkley@asce.org) or call (703)295-6296

wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015

The Institute for Broadening Participation (IBP) is excited to announce that it is now accepting applications to the Minorities Striving and Pursuing Higher Degrees of Success in GEO REU (MS PHD’S–GEO REU) Professional Development Program! The MS PHD’S–GEO REU will occur December 11-18, 2015 in conjunction with the December 2015 American Geophysical Union (AGU) Fall Meeting. Applicants can apply online at: www.msphds.org/GEOREUapp.aspx Deadline to apply: September 14, 2015! Modeled after IBP’s highly successful Minorities Striving and Pursuing Higher Degrees of Success (MS PHD’S) in Earth System Science Professional Development Program, the MS PHD’S-GEO REU joins the MS PHD’S family as a unique program designed specifically for underrepresented minority (URM) undergraduates who have participated in a recent National Science Foundation Research Experience for Undergraduates (NSF REU) program. Participants in the MS PHD’S–GEO REU program will engage in virtual and on-site professional development, networking, community building and mentoring activities designed to provide enhanced exposure to, interaction with, and increased participation in the geoscience community, as well as assisting participants with transitioning into future geoscience opportunities and successfully pursuing their short and long-term academic and career goals. For questions or additional information regarding the MS PHD’S–GEO REU, please contact pdp@msphds.org.


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URL: http://www.asce.org/ pe_environmental_review/

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USACE RELEASES A REPORT ON SCREENING-LEVEL ASSESSMENT OF PROJECTS WITH RESPECT TO SEA LEVEL CHANGE ALEXANDRIA, VIRGINIA. The U.S. Army Corps of Engineers (USACE) has released Screening-Level Assessment of Projects with Respect to Sea Level Change. The report is the first in a series of progressively more detailed screening assessments and detailed assessments of the most vulnerable projects and those with the highest consequences. The screening level assessments were completed using the Comprehensive Evaluation with Respect to Sea Level (CESL) web tool and relies on information developed by other agencies, including the Federal Emergency Management Agency (FEMA), National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS). Climate change is among the major challenges of the 21st century facing USACE, and can impact all areas of missions and operations. USACE climate preparedness and resilience policies require USACE to integrate climate change adaptation planning and actions into USACE missions, operations, programs, and projects, using the best available and actionable climate science and climate change information at the appropriate level of analysis, and to consider climate change impacts when undertaking long-term planning, setting priorities, and making decisions. USACE has been a leader in collaborating with other agencies to integrate and translate climate science into actionable information for decision makers, developing technical guidance to address climate change impacts and adaptation, and developing tools to support adaptation decision-making. This report demonstrates USACE leadership through completion of a nationwide screening-level assessment of the vulnerability of existing USACE projects to the effects of changing sea levels. This report contains a description of the development of CESL, including district staff feedback; the process used to collect the initial vulnerability assessment (IVA) data; and the results of the screening and development of the next steps. The level of participation from USACE districts supports improved professional and technical

wwww.asce.org/ewri • EWRI Currents Volume 17 Number 3 Summer 2015

competence at the district level with respect to sea level change. This is an important factor in mainstreaming climate change adaptation as called for in USACE climate preparedness and resilience policies. About one-third of the 1431 projects potentially impacted by sea level examined in the study were identified as being vulnerable to changing sea levels now or in the future. The vulnerable projects were ranked and sorted by priority for more detailed examination in later studies. About 100 projects were classified as having high or very high vulnerability. The results of this screening level analysis are providing a foundation for USACE to continue a program of progressively more detailed screening assessments before embarking on detailed assessments of the most vulnerable projects and those with the highest consequences. The CESL tool used in USACE screeninglevel analyses can be made available to others who wish to perform similar coastal vulnerability assessments. This technical transfer has already begun, with the transfer of the technology to Army staff for Installations, Environment, and Energy in 2015-2016. Other users are encouraged to work with the contractors to evaluate the necessary modifications to suit their own particular purposes. By developing, testing, and making this toolkit available to others, USACE is well-aligned with the recommendations of the White House State, Local, and Tribal Leaders Task Force released in November 2014.

FOR MORE INFORMATION, VISIT WWW.IWR.USACE.ARMY.MIL.


Image : Creativecommons.org cc licensed ( BY SA ) flickr photo by David Prasad: https://www.flickr.com/photos/33671002@N00/10846190065

Example results from the Sea Level Change Calculator showing projected sea level changes when the NOAA GEV-computed 100yr return level water elevations are added to the USACE Low rate sea level curve. Also shown are the FEMA Base Flood Elevation. (Photo by USACE)

Chart shows the Comprehensive Evaluation of Projects with Respect to Sea Level Change (CESL) Status Dashboard for April 9, 2014. Figure 3 is a Tableau Dashboard showing the USACE North Atlantic Division’s Initial Vulnerability Assessment (IVA) priority level and example of the pop-up window with a link to a particular project. (Photo by USACE)

Repor t cover for Screening- Level Assessment of Projects with Respect to Sea Level Change. (Photo by USACE) 15


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EWRI Currents is written and published by the EWRI Communications Council, part of Membership Services. For membership opportunities, contact John Weiland at jweiland@wadetrim.com Editor: John Weiland (636) 399-2588 jweiland@wadetrim.com

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