Auxiliary Lanes

Review Required. Reviews will be conducted to determine the need to provide turn lanes, deceleration lanes and acceleration lanes on the state highway prior to issuing an approach permit. Consideration of auxiliary lanes will meet the following conditions: (7-1-24) 01. Traffic Engineering Study. A traffic engineering study will be made that considers highway operating speed, traffic volumes, projected turning movement volumes, availability of passing opportunities, sight distance, and collision history. (7-1-24) 02. Auxiliary Lanes to Enhance Roadside Business. Auxiliary lanes will not be constructed to enhance a new roadside business, unless the applicant is willing to pay the full cost. (7-1-24) 03. Auxiliary Lanes Required by Planned Development. Auxiliary lanes required as a result of a planned development, will be paid for by the developer. When the need for an auxiliary lane exists prior to an application for a planned development, the developer may not be required to pay for the lane unless such construction precedes the Department’s construction schedule. (7-1-24) IDAHO ADMINISTRATIVE CODE IDAPA 39.03.42 – Highway Right-of-Way Idaho Transportation Department Encroachments on State Rights-of-Way Section 500 Page 18 403. -- 499. (RESERVED)