Area Sidewalks Damaged by Tree Roots to be Repaired with Flexipave

About a week ago, I was notified that the District of Columbia’s Urban Forestry Administration (UFA) will soon begin work to repair sidewalks that have been damaged by street trees at locations citywide. According to their notification, this work will be completed using a new sidewalk material, a flexible porous paving, which is commonly called flexipave. The citywide locations have all been identified by a UFA Urban Forester or Ward Arborist and were selected based on the damage to the sidewalk and the necessity of using alternate materials to preserve street trees.

The UFA further explained that “Flexipave is designed to reduce the damage to sidewalks by tree roots, and to provide the additional environmental benefits of allowing rainwater to infiltrate into the tree space. It is an environmentally friendly alternative to traditional materials for a number of reasons. The material is made from recycled tires and stone aggregate; it is mixed with a urethane adhesive and poured on site to create a paving material that is 100% porous. This permeability allows stormwater to infiltrate into the groundwater, and because the installation is low impact and the material flexible, it is well suited for tree preservation, since it will not break or buckle due to the growth of tree roots beneath it.”

In looking at the map of Advisory Neighborhood Commission 1A, I was able to identify 6 locations where this work will be done — 1 on the 600 b/o Princeton Place; 3 on the 700 b/o Lamont Street;  1 on the 1100 b/o Park Road; and 1 on the 1400 b/o Irving Street. The map below shows these locations with the red darts. You can also click on the map to navigate throughout all of Washington to see all the locations where work will occur.

Flexipaver map(Click on map to go to navigable map of flexipaver locations)

Explore posts in the same categories: Streets and Trees

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One Comment on “Area Sidewalks Damaged by Tree Roots to be Repaired with Flexipave”


  1. […] On November 12th, I posted that DDOT’s Urban Forestry Administration was planning to repair sidewalks that have been damaged by street trees at locations citywide with Flexipave. Flexipave is designed to reduce the damage to sidewalks by tree roots, and to provide the additional environmental benefits of allowing rainwater to infiltrate into the tree space. […]


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