Lancaster City Tree Inventory: Summary Report - Save It!

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Lancaster City – Tree Inventory and Municipal Street Tree PlanMaintenance DescriptionsCrown cleaning – The selective removal ofdead, dying, diseased, and broken branchesfrom the tree crown.Crown raising – Selective pruning toprovide vertical clearance over roads andsidewalks.Crown restoration – Pruning to improve thestructure and form of trees which have beenstorm damaged or vandalized.Crown thinning – The selective removal oflive branches to allow light and airpenetration or to lighten remaining branchweight.Horticultural train prune – Pruning ofyoung trees (less than 10 years old) to helpestablish good form and structure.Priority reinspect – A more thoroughinspection by an experienced/certifiedarborist should be conducted to investigatepotential health and structural deficiencies.Removal – Trees which should be removedbecause they are dead or in severe decline.Planting – No tree is currently planted andthe site is available to be planted with a newtree based on the site type, size, andcondition. When listed as “Planting site –new” in the common name field, no tree hadbeen previously planted in this location;removal of paving materials (e.g., concrete,bricks) to create a tree pit is likely.Stump removal – An old stump is presentand should be removed prior to replanting.10
Lancaster City – Tree Inventory and Municipal Street Tree PlanLocating Trees and Planting Sites *In addition to geographic coordinates, thelocation of a tree is recorded in reference tothe address of the property to which the treeis adjacent. Thus, trees in the right of waywhich are located along streets to the sideor rear of a property are given a locationbased on the address of that property, ratherthan a location based on the street alongwhich the trees are physically located. Todesignate the relative location of a tree at aparticular address, a cell number is assigned.Following from ACRT’s cell number concept,an imaginary 7x7 cell grid is applied acrossa particular parcel. A number is assigned toeach cell around the perimeter of the grid,starting with 1 in the front left corner andcounting upward to 24, moving in acounterclockwise direction around theperimeter. Cell sizes vary with lot size andthere may be zero, one, or more trees ineach cell. The cell numbers are meant to berelative to the other trees and cell numbers.Occasionally, trees may fall outside thenormal perimeter location, such as treesplanted in medians. For these locations, aset of optional cell numbers, ranging from 25to 31, are used. A numerical street addressis also assigned to these tree sites using theclosest actual street address on either sideof the road.In the example here, there are four trees onthe property perimeter and two trees in themedian. The address for each tree is 805Vine Street. Within the property, three cells(2, 20, and 23) contain one tree each. Twotrees are located in cell 6, thus both treesare assigned 6 as the cell number. Themedian, here labeled “Optional Cells,”contains two trees. Based on the treelocations, these trees would be assigned cellnumbers of 27 and 30.*Adapted from State College Borough, PA MunicipalTree Plan, and originally attributed to ACRT, Inc.11
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Lancaster City Tree Inventory: Summary Report - Save It!

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