Hi Adam,
Here are details for installing trees with root barrier protection. ODOT standards are very vague. Hopefully this provides additional detail.
Also, in regards to traffic control. If you need to bring in equipment to excavate the tree well and need to close the shoulder, a permit will be required by ODOT for the traffic control plan. Here is a link for their standard shoulder closure to submit with the permit.
ftp://ftp.odot.state.or.us/techserv/roadway/web_drawings/traffic/2016_01/tm850.pdf
Thank you,
Jennifer Cline, P.E. | Public Works Director
Licensed in OR, WA
117 N Molalla Ave. | PO Box 248 * |Molalla, OR 97038
O: 503.759.0218 | F: 503.829.3676
From: Nicolas Lennartz [mailto:nlennartz@cityofmolalla.com]
Sent: Wednesday, June 15, 2016 3:46 PM
To: adamsalvetti@yahoo.com
Cc: Jennifer Cline <dpw@cityofmolalla.com>
Subject: Street Tree list
Adam,
I spoke with the PW Director and it sounds like the easiest way to get this done is to have you perform the work if you so wish, no permit required, however a root barrier would be required a to not damage the sidewalk. ODOT won’t need concurrence as there is no infrastructure being changed, and only landscaping.
Here’s our code on street trees:
http://www.qcode.us/codes/molalla/view.php?topic=18-18_08-18_08_040&frames=off
I can get you the specs on the root barrier system, it’s an ODOT standard and it is in our best interest to install one as it will ensure the sidewalk isn’t damaged.
Email me back when you have some trees in mind for the replacement.
Thanks,
Nicolas Lennartz | Community Planner | City of Molalla
O: 503∙759∙0219 | C: 503∙998∙7048
communityplanner at cityofmolalla.com
117 N. Molalla Ave. | Molalla, OR 97038
