Texas ASLA Conference Awards Book 2023

Page 118

E MISSOURI AVE

W MISSOURI AVE

TREE CONDITION

BULB-OUT HARDSCAPE

Many different factors contribute to the health of a tree, such as irrigation, growing space,

DESCRIPTION Trees are planted within the new bulb-out extension. Depending on the size of the bulbout, the number of trees can range from one to many. A tree grate and permeable pavers are used to provide additional space for seating and/or tables. If existing surface flows are directed towards the bulb-out location, additional stormwater strategies such as a curb inlets can be implemented to capture, use, and store, the stormwater runoff.

maintenance, solar aspect, and species selection. The goal of this diagram and others, is to understand the relationship of these factors to better inform decisions moving

E FRANKLIN AVE

W FRANKLIN AVE

forward. N KANSAS ST

N STANTON ST

N MESA ST

N OREGON ST

N EL PASO ST

N SANTA FE ST

E MAIN ST

W MAIN DR

While an analysis of the irrigation system is outside of this Master Plan’s scope of work, inconsistent irrigation methods and broken equipment were observed during site visits. If the irrigation system is not functioning optimally, it could be a primary reason trees are not thriving. All trees indicated as dead or dying are recommended to be removed as soon as possible. Note: The species indicated in this diagram are

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NR YT

RO S

TC

ILLS

WM

T

AVE

E MILLS AVE

based on the online ArcGIS map created by the City’s arborist Brent Pearson.

Figure 9: Designrulz

WHERE SHOULD THIS BE USED? • New bulb-outs that are adjacent to high pedestrian activity such as cafes, or areas which could benefit from additional seating. GOALS AND BENEFITS • Expanded seating opportunities • May capture and store stormwater runoff • Reduces soil compaction • Increases soil aeration • Promotes deeper root depth CONSTRAINTS • Tree grate maintenance • Possible curb-cut inlet maintenance • Possible under drain requires connection to existing drainage infrastructure

permeable pavement new tree grate Detail NB.2 Figure 10: Iron Smith

LEGEND

N EL PASO

deep root watering system disbursement pipe oil cells capture and store stormwater under drain for possible overflow

COMPONENTS • Deep root watering system • Soil cells • Permeable pavers • Tree grate • Functional irrigation system

Good (85% live crown)

ST

Fair (60% live crown) Poor (35% live crown)

TEXAS AVE 75’

150’

300’

Dead/Dying (10% live crown) Remove

Figure 11: Photo by Alice Webb Analysis

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EL PASO DOWNTOWN TREE PLAN Surroundings PLANNING + ANALYSIS

El Paso sits in one of the regions which will be most affected by climate change in the next decades. An analysis of the state of Texas from 2000-2050 shows a 75% increase in widespread summer droughts, and “Dangerous Heat Days” will increase to 115 days per year. While the City has made large strides in water conservation practices, other climate-combating strategies, such as increasing tree canopy, are needed to increase the City’s resiliency to an ever hotter future. The El Paso Downtown Tree Plan and Design Guidelines will set the stage to respond to our climate challenges and will propel the City of El Paso towards expanding a sustainable, regionally and ecologically appropriate urban forest across its urban downtown core and beyond.

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EL PASO Downtown Tree Plan

optional curb-cut inlet with screen to prevent debris/sediment build-up (actual location will vary)


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