2016 WORKSHOP LVR Field Trip

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1 2016 WORKSHOP LVR Field Trip ***Note*** Many of the sites on this tour were NOT related to, or funded by, the DGLVR program. They are being shown to encourage discussion about the kinds of projects that are possible within the context of the LVR Program. City of Lancaster s Stormwater Initiative: The City of Lancaster is leading the State and even the Nation in green infrastructure and urban stormwater management. Years ago, they embarked on this journey to increase infiltration and reduce stormwater runoff into their Combined Sewer Overflow and MS4 systems. They have implemented a stormwater fee on impervious surfaces, and use that money along with various other sources to implement their green infrastructure projects. Many of the projects involve urban roads and alleys, and may have potential overlap with the DGLVR program. See their brochure on the next page for additional details. Lancaster DGLVR Involvement in Urban Stormwater: Many Conservation Districts are trying to determine how their LVR program may relate to urban stormwater issues such as MS4s and CSOs. In Lancaster, where they have a progressive urban stormwater infiltration program, the District has started to partner with the City of Lancaster on urban projects. So far, Lancaster CD has only funded portions of each application which they determined dealt directly with the goals and objectives of the Low Volume Road Program, such as granular material, drainage, and piping. In the case of both the Hand and Reynolds road projects above, both $100K DGLVR grant requests eventually resulted in two $28K contracts, with the remaining funding through other sources. The QAB feels this was the best way to deal with urban projects which sometimes can have a higher price tag then rural projects. To-date, this approach is working for the Lancaster QAB. 1. Pinkerton Road, 2015 LVR Project: Two completed rural LVR Project funded by Lancaster Conservation District in 2015 and The entire road runs down the low point in the topography, making dispersal of runoff very difficult. Projects focused on re-grading and stabilizing a grass swale, outlet stabilization and working with landowners to address off right-of-way stormwater. 2. Brandon Park: Not a DGLVR funded project. Multiple practices were implemented within the city park, such as porous pavement on basketball courts, porous rubber & infiltration within playground areas, and roadside rain gardens. 3. Fulton Street: Not a DGLVR funded project. Standard pavement with drop inlets leading to an infiltration bed constructed within the roadway. Stormwater runoff from the street is collected by precast inlets which outlets into a stone infiltration bed under Fulton Street. 4. Lancaster Brewing Company: Not a DGLVR funded project. A host of practices including rain gardens installed within curb bump-outs for traffic calming, porous pavement and infiltration bed within the alley and rooftop capture and re-use brewery tour not included 5. Hand Avenue /Reynolds Avenue: LVR projects funded by Lancaster in Projects focus on capture and infiltration of stormwater runoff. The Lancaster County QAB funded the Reynolds Avenue project at $26,774 and Hand Avenue project at $24,434. These project are scheduled to start later this fall. The group will visit and discuss the proposed plan for one of these roads.

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3 Pinkerton Road Lancaster: 2 LVR Projects There are two projects completed on Pinkerton Road, which is a rural LVR in Rapho Township. The lower portion of the road was completed in 2015 for $24, ($12, grant + $11, in-kind) and involved installation of a grass swale, a cross pipe and endwalls set on an existing culvert and riprap at the swale outlet for energy dissipation prior to discharge to the creek. Dispersal of stormwater was not an option as the road is located within the low point of the topography. The upper portion of the road was completed in 2016 for $20, ($9, grant + $10, in-kind) and addressed off right-of-way from the farm driveway, removed trees and stumps to allow for re-grading of the grass swale to a wider and shallower profile, erosion matting installation and an inlet and new 18 HDPE cross pipe to outlet stormwater into the field. Both projects involved landowner cooperation and off right-of-way work. Problems: Road at the low point collects a lot of drainage Surrounded by ag and commercial impacts Eroded ditches & inadequate drainage structures Before: farm lane runoff impacts road and erodes ditch. Solutions: Since the road runs down the low point of a small valley, drainage dispersal was not an option Water was handled by creating a stable ditch Worked closely with landowners. Trees removed to create swale After: Bottom of hill, grassed swale along road After: farm runoff to roadside swale to new crosspipe Project Benefits: Stablized grass swale to reduce runoff velocity and erosion Stabilized outlet prior to creek (riprap and vegetation) Disconnected runoff from upper portion of road to reduce volume flowing directly to creek

4 Overview YOUR WATER. YOUR MONEY. YOUR CITY. The City of Lancaster encompasses 7.34 square miles and includes 241 acres of publicly-owned park land and playgrounds; 135 miles of streets of which 27 miles are classified as alleys, and over 860 acres of buildings, according to the GIS analysis performed for the 2011 Green Infrastructure Plan (GI Plan). As is with many urban town centers, the City is heavily paved with structures, roadways, parking lots, sidewalks and other impervious areas. Approximately 2,079 acres of the City is impervious, including 649 acres of parking lots and 518 acres of roadways. Runoff from impervious areas are conveyed via the City's municipal separate storm sewer system (MS4) or the City's combined sewer system (CSS). Approximately 45% of the City drains to the CSS through the City's sewer collection system, which is comprised of the following: 87 miles of Combined Sewer Lines 60 miles of Sanitary Sewer Lines 6 miles of Sewer Force Mains 2,900 Sewer Manholes 2,120 Combined Sewer Catch Basins 5 CSO Diversion Chambers and Outfall Structures During heavy rain events, combined flows are conveyed to the AWWTF and sometimes exceed the treatment plant's volume capacity, and a small portion of that combined flow is discharged through CSO outfalls to the Conestoga River. The City of Lancaster is implementing methods to proactively solve the challenges created by the CSS with green infrastructure techniques applicable to the older areas of the City and surrounding suburban area as well. A summary of the City's green infrastructure implementation is shown in the table below. Green infrastructure implementation is accomplished with integrated planning to achieve multiple benefits by incorporating stormwater management features into infrastructure renvewal projects along with improved aesthetics, increased urban tree canopy, reduction of urban heat island impacts, and other community improvements - all key to transforming the City into a sustainable healthycommunity. City Funded Gllmplementation (constructed projects through 2014, projects In design for , projection for ) 70 u60..!!. " "' ti '0'20.. Q cumulative# of City Constructed Gl Projects $12,000,000 $10,000,000 $8,000,000 $8,000,000 $4,000,000 - cumulative Captured (ac) $2,ooo,ooo --cumulative Cost($) $ Page 1

5 Tour Sites 1 - Brandon Park This 7.4-acre public park has a variety of BMP's, including porous parking and basketball courts, bioretention areas, rain gardens, swales, and tree canopy. The project was completed in 2012 and is located in the Engleside CSO sewershed. Nltrogren (TN) 3,892,000 gal 1,5271bsjyr lbsjyr bs/yr 181,000ft2 2 -E. Fulton St. The street was reconstructed to include 3 subsurface infiltration beds with a standard asphalt surface that captures all roadway runoff. Inlets were replaced and outfitted with a debris filter, with overflow going into the CSS. The infiltration bed is piped to the combined system, which will happen only in large, prolonged storm event. 675,000 gal 340 lbs/yr 2.50 lbs/yr lbs/yr 35,000 ft2 3 - N. Plum/E. Walnut Be Alley 45 NE Once a dangerous intersection prone to flooding, Plum and Walnut is now the winner of Best Urban BMP in the Bay award. Completed in 2013 and located in the North sewershed, the project includes onstreet parking made of permea- pie pavers, a patio area, rain gardens, and a cistern. The adja-cent alley was improved in ,760,000 gal lbs/yr 5.141bsjyr lbsjyr 91,000 ft2 4 - Hand Ave/Reynolds Ave./ Alley 156 These two small streets and one alley primarily provide access to garages and off-street parking in residential neighborhoods. Construction will begin in the fall 2016 and consist of infiltration beds beneath standard asphalt surfaces. 1,310,000 gal 660 lbsjyr 4.90 lbsjyr lbs/yr 68,200 ft2