The City of Lancaster, in cooperation with the Lancaster County Conservancy and the Lancaster County Conservation District will be offering a two-hour workshop for contractors to discuss the City’s green infrastructure program and the role small stormwater projects have in helping meet regulatory requirements.
During this workshop, the City will provide an overview of the stormwater management program and review recent updates to the City Stormwater Management Ordinance and Small Stormwater Project Permit Application.
The slides from the presentation can be found here
Attendees will learn how the stormwater permitting process works, review an application from a City property and learn the step-by-step process to obtaining your permits quickly and efficiently.
Note: Although the City cannot endorse specific contractors attendees to this workshop will be added to a workshop attendance list that may be provided to property owners upon request.
Green Infrastructure Implementation and Small Stormwater Project Permitting
Program 8:30am – 10:30am
Tuesday, March 3, 2015
Lancaster City Hall
120 North Duke Street, Lancaster, PA
(Snow date Wednesday March 4)
Reservations are requested for this FREE workshop.
Upgrades completed this past fall at Mulberry Art Studios parking lot, accessed from West King Street, will allow infiltration of approximately 150,000 gallons of stormwater off of adjoining buildings, as well as sheet flow from the parking lot.
For more information on other Commercial properties click here.
A number of Curbside gardens have popped up surrounding other green infrastructure projects throughout Lancaster City. They often extend from the curb or intersection, serving to both capture stormwater, while also slowing traffic and making these areas safer for pedestrians.
Impact of water drops on the surface of granular particles
Abstract: When a granular material is impacted by a sphere, its surface deforms like a liquid yet it preserves a circular crater like a solid. Although the mechanism of granular impact cratering by solid spheres is well understood, our knowledge on granular impact cratering by liquid drops is still very limited. Using high-speed photography, we investigate liquid-drop impact dynamics on granular media. Surprisingly, we find that granular impact cratering by liquid drops follows the same energy scaling as that of asteroid impact cratering. Inspired by this similarity, we develop a simple model that quantitatively describes the observed crater morphologies. Our study sheds light on the mechanisms governing raindrop impacts on granular surfaces and reveals an interesting analogy between familiar phenomena of raining and catastrophic asteroid strikes.
Trees Ordinance, Chapter 273 of the Code of the City of Lancaster
The City of Lancaster tree ordinance acknowledges the urban forest as a necessary part of the City’s infrastructure. This green infrastructure provides numerous crucial ecosystem services to the city including environmental (stormwater management, carbon sequestration and urban wildlife habitat), social (human health, healing, and quality of life), and economic (increased property values, increased business activity and decreased energy use). However, the increased creation of urban land over time, coupled with the challenges in adequately maintaining the urban forest and tree canopy has created the need to further protect and conserve this valuable City resource.
Tree Manual: Regulations and Standards for Arborculture Work
The regulations of this Tree Manual are intended to reduce tree canopy loss and implement urban forest management improvements through requirements for the planting and transplanting of trees, the care and maintenance of existing trees, tree protection, and the preservation of trees within the City of Lancaster.
This Tree Manual is supplemental to Chapter 273, Trees, of the Code of the City of Lancaster and establishes minimum standards for the design of landscapes so as to improve the community aesthetically, economically and environmentally.
Most City homes boarder an alley way and a majority of those are Common Alleys where each property owner shares ownership and responsibility for the upkeep and maintenance. It’s with this in mind that the City has piloted a project to work with property owners to help with upgrades to their alleys while also increasing capacity to capture stormwater. The Brewery Alley is located along E Walnut Street. Construction was completed in the fall of 2014 and it is estimated that the alley will capture nearly 150,000 gallons annually.
To learn more about similar projects click here.
For more information on green streets and alleys click here (PDF).
The Snavely and Dosch property runs along Water Street and Linear Park. With a particular focus on addressing rain water run-off from commercial properties along Linear Park work was recently completed that includes several bio-retention (rain gardens), bio-swales, and an infiltration trench (stone basin underneath the parking lot) that will help capture approximately 675,000 gallons annually.
For more information on other commercial projects click here.
The City of Lancaster hosted our first Adopt-A-Rain Garden event Saturday morning, October 25 at Brandon Park with volunteers from the Junior League of Lancaster. For more information about how you can get involved contact us here.
A Stormwater Planter is typically a wooden planter that captures, filters, and temporarily stores runoff diverted from a downspout. Some of the captured runoff is removed by plants and the remaining water is filtered through soil media and stored at the planter’s base.
Many residences in the city have downspouts tied directly into the City’s combined storm / sewer system and therefore contribute to combined sewer overflows that pollute our local waterways. Retrofitting residences with Stormwater Planters can reduce local flooding and protect water quality by capturing, treating and storing runoff before it leaves the property. They also provide low maintenance aesthetically-pleasing “green space” in urbanized areas.