As described in https://data.cityofchicago.org/stories/s/311-Dataset-Changes-12-11-2018/d7nq-5g7t, the function of this dataset was replaced by https://data.cityofchicago.org/d/v6vf-nfxy. This dataset is historical-only.

All open and completed tree trim requests made to 311 since January 1, 2011. The Department of Streets and Sanitation maintains all trees growing in the public way and performs regular maintenance trimming in response to 311 requests. Crisis trimming is performed on an emergency basis in response to hazardous conditions such as broken or hanging branches. Requests that have been labeled as Duplicates are in the same geographic area and have been entered into 311’s Customer Service Requests (CSR) system at around the same time as a previous request. Duplicate requests are labeled as such in the Status field, as either "Open - Dup" or "Completed - Dup." Data is updated daily.

As described in https://data.cityofchicago.org/stories/s/311-Dataset-Changes-12-11-2018/d7nq-5g7t, the function of this dataset was replaced by https://data.cityofchicago.org/d/v6vf-nfxy. This dataset is historical-only.

All open tree debris removal requests made to 311 and all requests completed since January 1, 2011. Large piles of branches or bushes may be picked up by the Department of Streets and Sanitation.
311 sometimes creates duplicate requests for tree debris removal. When there is an open tree debris request, a duplicate request is created when the exact same address and the exact same service request type are used. Streets and Sanitation responds to the initial request opened and closes the duplicates. A forestry "Clam" is the name of the vehicle the Forestry Bureau deploys to collect tree debris.
Data Owner: Streets and Sanitation (http://www.cityofchicago.org/content/city/en/depts/streets.html).
Time Period: January 1, 2011 to present.
Frequency: Data is updated daily.
Related Applications: 311 Service Request Status Inquiry (https://servicerequest.cityofchicago.org/web_intake_chic/Controller?op=createsrquery2) and
Request Tree Debris Removal (https://servicerequest.cityofchicago.org/web_intake_chic/Controller?op=locform&invSRType=SEL&invSRDesc=Tree%20Debris&locreq=Y).

Note: This filtered view shows only those service requests from the underlying dataset that are not marked as duplicates. -- All open and completed tree trim requests made to 311 since January 1, 2011. The Department of Streets and Sanitation maintains all trees growing in the public way and performs regular maintenance trimming in response to 311 requests. Crisis trimming is performed on an emergency basis in response to hazardous conditions such as broken or hanging branches. Requests that have been labeled as Duplicates are in the same geographic area and have been entered into 311’s Customer Service Requests (CSR) system at around the same time as a previous request. Duplicate requests are labeled as such in the Status field, as either "Open - Dup" or "Completed - Dup." Data is updated daily.

After extreme weather events, the Bureau of Forestry Tree Emergency is deployed to remove plant debris blocking or cluttering the public way. This metric tracks the average number of days the Department of Streets and Sanitation (DSS) takes to complete tree debris removal requests per week. Median days to complete requests as well as total number of requests fulfilled per week are also available by mousing over columns. The Department of Streets & Sanitation responds to emergency tree debris removal requests logged by 311’s Customer Service Requests (CSR) system. The target response time for Tree Debris Removal is 1 day. For more information on open tree debris removal requests, see https://data.cityofchicago.org/d/mab8-y9h3

Note: This filtered view shows only those service requests from the underlying dataset that are not marked as duplicates. -- All open tree debris removal requests made to 311 and all requests completed since January 1, 2011. Large piles of branches or bushes may be picked up by the Department of Streets and Sanitation.
311 sometimes creates duplicate requests for tree debris removal. When there is an open tree debris request, a duplicate request is created when the exact same address and the exact same service request type are used. Streets and Sanitation responds to the initial request opened and closes the duplicates. A forestry "Clam" is the name of the vehicle the Forestry Bureau deploys to collect tree debris.
Data Owner: Streets and Sanitation (http://www.cityofchicago.org/content/city/en/depts/streets.html).
Time Period: January 1, 2011 to present.
Frequency: Data is updated daily.
Related Applications: 311 Service Request Status Inquiry (https://servicerequest.cityofchicago.org/web_intake_chic/Controller?op=createsrquery2) and
Request Tree Debris Removal (https://servicerequest.cityofchicago.org/web_intake_chic/Controller?op=locform&invSRType=SEL&invSRDesc=Tree%20Debris&locreq=Y).