Structured Removal

Structured removal is the removal of blocks of infested ash trees throughout the city. The EAB Management Plan presumes that once trees are removed through this program, the stumps will also be removed, and a variety of new trees will be planted.


2020 Structured Removal Schedule

Removals: Forestry will begin removals on January 6th, starting with District 1, and moving through each district in order. Due to the number of removals we are unable to provide estimates on when we will be in a given area.
Stump Removal: Stumps will be removed in 2021 - usually beginning in April, but dependent on weather.
Planting: Replacement trees will be planted in 2022.

Reference the map below to see if your block will be impacted by Structured Removal work in 2020.


Boulevard Ash Tree Map

NEW! - Click on the interactive Boulevard Ash Tree Map below to see where removals are planned, which trees are being treated with insecticides, and where ash trees are located throughout the city.

Map of Boulevard Ash Trees in St. Paul

Parkland Ash Tree Removal

Visit the Parkland Ash Tree Management page for more information.

What is Structured Removal of ash?

The City of Saint Paul has, since 2010, employed the "Structured Removal" of ash in order to strategically reduce the total percentage of ash trees on boulevards and in parks throughout Saint Paul.


How are trees selected for structured removal?

In the past, the focus for structured removal was on areas that were planted in a monoculture of ash trees. Trees that were declining from non-EAB related causes such as drought, salt injury, mechanical injury, and structural defects, were selected for structured removal. In general, ash trees become brittle and drop many branches while reaching maturity and are a common source of complaints from residents. 

Due to the continuing spread of the infestation, and to the growing number of infested trees, structured removal now focuses exclusively on confirmed infested trees. These blocks are identified during routine monitoring for EAB infestations.

Why are you removing live trees?

Once an ash tree becomes infested with EAB, it generally takes 3 to 5 years for the tree to die. By removing these trees before mortality occurs, the city is reducing the number of dead and potentially hazardous ash trees in the city. Also, the removal of these trees becomes much more dangerous when they are dead or nearly so. The safety of the citizens of Saint Paul as well as the crews maintaining the urban forest are a top priority.


Why not save the trees with insecticide treatments?

Forestry treats a portion of the high value ash trees on boulevards and in parks that meet the following criteria:

  • Between 10-20" diameter at breast height (DBH)
  • In good health with no known defects
  • No visible conflicts with utility wires, street lights, or roadway clearance.