Editing National Mall (section)

===Reconstruction and restoration===
From 2010 to 2012, NPS contractors rebuilt the aging Lincoln Memorial Reflecting Pool, which had first been constructed in the early 1920s and whose water had come from the pipes that supply Washington, D.C., with its drinking water. As a result of the project, the pool now receives filtered water from the Tidal Basin through a [[high-density polyethylene]] (HDPE) pipeline.<ref>Multiple sources:
* {{cite web|last=Ruane|first=Michael E.|archive-url=https://web.archive.org/web/20121112094338/http://www.washingtonpost.com/local/shoring-up-support-for-lincoln-reflecting-pool/2011/05/10/AFPUcLkG_story.html|archive-date=2012-11-12|url=https://www.washingtonpost.com/local/shoring-up-support-for-lincoln-reflecting-pool/2011/05/10/AFPUcLkG_story.html|title=Shoring up support for Lincoln reflecting pool|work=Post Local|publisher=[[The Washington Post]]|date=2011-05-10|access-date=2017-02-13|url-status=live}}
* {{cite web|first=Tyler|last=Henning|archive-url=https://web.archive.org/web/20150518095855/http://www.modernpumpingtoday.com/improved-filtration-revitalizes-a-national-treasure/|archive-date=2015-05-18|url=http://www.modernpumpingtoday.com/improved-filtration-revitalizes-a-national-treasure/|title=Improved Filtration Revitalizes a National Treasure|work=Modern Pumping Today|publisher=Highlands Publications, Inc.|date=April 2013|access-date=2017-02-13|url-status=live}}</ref>

The NPS then began a four-year restoration of the portion of the central axis of the Mall that lies between 3rd Street and 14th Street.<ref>{{cite web|archive-url=https://web.archive.org/web/20160402085314/http://nationalmall.org/building/restore-improve/progress/completed-projects/turf-restoration-phase-i|archive-date=2016-04-02|url=http://nationalmall.org/building/restore-improve/progress/completed-projects/turf-restoration-phase-i|title=Turf Restoration - Phase I: Bringing the green back to the Mall|work=Restoration: Progress: Completed Projects|format=video|date=2017-01-26|publisher=Trust for the National Mall|location=Washington, D.C.|access-date=2017-02-14|url-status=dead}}</ref> By 2016, the restoration project had completely replaced the deteriorated and weedy [[turf]] that had previously covered much of that part of the Mall with a new cover containing [[soil]], [[Festuca|fescue (''Festuca'')]] and [[Poa pratensis|Kentucky bluegrass (''Poa pratensis'')]].<ref>Multiple sources:
* {{cite web|archive-url=https://web.archive.org/web/20160714002348/http://dcist.com/2016/05/national_malls_turf_restoration_pro.php|archive-date=2016-07-14 |url=http://dcist.com/2016/05/national_malls_turf_restoration_pro.php|title=Greener Grass: National Mall's Turf Restoration Project Moves On To Final Phase|last=Sadon|first=Rachel|work=News|publisher=dcist.com|date=2016-05-04|access-date=2017-02-13|url-status=live}}
* {{cite web|archive-url=https://web.archive.org/web/20161006214156/https://www.washingtonpost.com/lifestyle/home/once-barely-surviving-the-grass-on-the-mall-gets-a-serious-makeover/2016/09/19/c815b8d2-792b-11e6-ac8e-cf8e0dd91dc7_story.html |archive-date=2016-10-06 |url=https://www.washingtonpost.com/lifestyle/home/once-barely-surviving-the-grass-on-the-mall-gets-a-serious-makeover/2016/09/19/c815b8d2-792b-11e6-ac8e-cf8e0dd91dc7_story.html|title=Once barely surviving, the grass on the Mall gets a serious makeover|last=Higgins|first=Adrian |work=Home & Garden |publisher=[[The Washington Post]]|date=2016-09-20|access-date=2017-02-13|url-status=live}}
* {{cite web|archive-url=https://web.archive.org/web/20150219005015/http://nationalmall.org/turf-phaseii|archive-date=2015-02-19|url=http://nationalmall.org/turf-phaseii |title=Turf Restoration - Phase II: A more sustainable, greener National Mall|work=Restoration: Completed Projects |publisher=Trust for the National Mall|format=video |location=Washington, D.C.|date=2017-02-14|access-date=2017-02-14|url-status=dead}}</ref>
<gallery mode=packed>
File:DC 23 1 (6633835613).jpg|Lincoln Memorial Reflecting Pool before reconstruction (April 2010)
File:DC monument view from Lincoln memorial.jpg|Pool after reconstruction (May 2016)
File:Mall construction 090658.jpg|Axis undergoing restoration (October 2015)
File:National Mall in DC.jpg|Axis after restoration (September 2016)
</gallery>