CC_Minutes_2010_1129 - Laserfiche WebLink

Home

Wenck Associates, Inc. 1800 Pioneer Creek Clr. P.O. Box 249 Maple Wain. MN 55359 -0249 Wenck t753) 479 -4200 Fax (783) 479-4242 E-ma®: wenckmp@wenek.com TECHNICAL MEMORANDUM TO: Kent Peterson Bituminous Roadways FROM: Edward Terhaar, P.E. Wenck Associates, Inc. RE: Opinion of Edward Terhaar, P.E. on Traffic Impacts Associated with the Proposed Bituminous Roadways Asphalt Plant in Roseville, MN DATE: October 8, 2010 The traffic information presented in the EAW was reviewed relative to comments received. As shown in the EAW, the proposed project is expected to generate 594 trips per day under standard operations and 674 trips per day under maximum operations. The number of trips generated is based on asphalt production at the plant and is not based on operating hours. The maximum amount of asphalt production at the proposed plant would be 5,000 tons per day while the standard operating conditions would produce 2,500 to 3,000 tons per day. The daily trip estimates account for trucks, employees, and vendors that would access the site during a 24 hour period to meet the production needs of the proposed project. However, the proposed project would not typically operate for a continuous 24 hour period, but would instead operate for 14 hours from 6 am to 8 pm under normal conditions. As a result, the maximum possible traffic impacts potentially created by the proposed project would be the production of the maximum of 5,000 tons of asphalt per day within the normall4 hour work day. This scenario would entail the largest amount of trucks entering and leaving the project site in the shortest potential operational scenario. During the weekday a.m. peak hour, the project is expected to generate 5 employee trips, 47 truck trips, and 4 vendor trips during maximum asphalt production. This equates to 56 trips during the weekday a.m. peak hour. During the weekday p.m. peak hour, the project is expected to generate 5 employee trips, 46 truck trips, and 4 vendor trips. This equates to 55 trips during the weekday p.m. peak hour. As stated within the EAW under the Question 21 heading, a Traffic Impact Study is required if the peak hour traffic generation exceeds 250 trips or if the daily generation exceeds 2,500 trips. As shown above, both the hourly and the daily maximum trip generation numbers are below the identified thresholds and therefore a Traffic Impact Study is not required. N:\TerMiwn0425- Bituminous R1112000 Rose.nlle Minnie datalTrallic Cammenls respdue_10-8- 2010.1CM