Guidelines - City of Oklahoma City

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Preservation Standards AND Guidelines August 1, 2012 2.7.10: Install a drip irrigation system in landscape beds to conserve water better than hand or irrigation watering. Don‘t use potable water to run irrigation systems. 2.7.11: A properly designed, installed, and maintained irrigation system conserves water usage better than hand watering. Set the irrigation controller to run the system during early morning hours to decrease evaporation and risk of biological growth on building materials. 2.7.12: Install an irrigation shut-off device that detects rain and freezing conditions. Prevent the irrigation system from watering when not needed. Adjust spray nozzles to deliver water only to planted areas that need it and restrict wasteful run-off on driveways and walkways. 2.7.13: Thoughtful maintenance of lawn areas will also help conserve water usage. Do not mow grass too short. Close-cut grass dries out and wilts, therefore requiring more watering. 2.7.14: Select grass types that are drought-resistant. Some drought-tolerant grasses include native Buffalo grass, Tall Fescue and Bermuda. 2.7.15: An alternative to turf in yards is drought-tolerant landscaping. Alternatives for lawn areas can include any combination of hardy, low-growing ground-covers (clover, ivy, mondo grass, thyme, sedum), juniper shrubs, yucca, ornamental grasses, butterfly gardens, water-permeable paths of pea gravel, water gardens, wildflowers, and decorative rocks. Evergreens along this privacy fence will eventually grow into a sound and privacy buffer possibly providing shade and a wind screen (left). Well planned irrigation systems can regulate water efficiency (right). Eliminating the need for turf, large decorative rocks are used as accents. Native trees are preserved, providing shade across the entire back yard including the back building face (left). Water features using solar powered re-circulating pumps reduce the amount of turf in this back yard. Turf reduction through landscape design may include things like pathways, water features, permeable paving, patios, mulch beds, and borders (right). Oklahoma City Historic Districts 56
Preservation Standards AND Guidelines August 1, 2012 Evergreens are a type of shade tree that provide effective year-round protection from direct sun (1441 NW 35th Street). Shade trees should be carefully sited to provide protection from the sun and not be so overwhelming as to obscure views of a building‟s front facade. The house at 221 NW 26th Street illustrates an effective balance between these approaches. Oklahoma City Historic Districts 57
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OKLAHOMA CITY HISTORIC PRESERVATION
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Oklahoma City Historic Preservation
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Guidelines - City of Oklahoma City

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