HomeMy WebLinkAbout2026-03-25 APPLICANT RESPONSES (1)
444 Hospital Way, Suite 527
Pocatello, Idaho 83201
knudsen-eng.com
March 25, 2026
Joel Gray
City of Rexburg
Public Works
SUBJECT: Additional Applicant Response Comments for the University Towne Center
Subdivision Application
Dear Mr. Gray,
In response to your comment regarding the "northbound Mikan left turn movement sight
distance," we have reviewed the intersection design and prepared the following analysis and
proposed solution.
SIGHT DISTANCE ANALYSIS
Using the AASHTO Green Book (Section 9-56, Case F) for a local road with a 25-mph design
speed and a combination truck (WB-67) as the design vehicle, the required intersection sight
distance is calculated at 280 feet.
Our review indicates that if the proposed trees in the planter strip are allowed to mature, they will
obstruct the line of sight, reducing the available sight distance to approximately 145 feet.
The orange cone represents the restricted 145-foot sightline assuming mature tree obstruction, and the
green cone represents the required 280-foot sightline.
City of Rexburg – Public Works
Addtn’l Applicant Response Comments for the University Towne Center Subdivision
Application
March 25, 2026
Page 2
PROPOSED SOLUTION
To ensure the intersection meets the required 280-foot sight distance while maintaining the
current intersection layout, we propose the following modifications to the submitted plans:
Tree Removal/Replacement: Remove the four trees currently designed within the
planter strip (marked in red in the second image below). Replace with planting that have
an obstruction height of less than 3.5 feet.
Planting Restrictions: Stipulate that future plantings in this area need to be less than 3.5
feet and avoid additional signage/structures that could obstruct views within the required
sight distance triangle (the green cone).
Please contact me if you have any questions or require further clarification on this proposed
adjustment.
Sincerely,
KNUDSEN ENGINEERING, LLC
Tyson L Knudsen, PE
Principal Engineer