Maps

Revised Route Maps | Revised Routes - Detailed Evaluation | Siting Criteria

The location of the proposed transmission line has not been determined. These routes, developed by the Project Advisory Teams (PATs) and revised by Idaho Power’s technical team, will be reviewed during the next series of PAT meetings and subsequent public meetings. The public meetings will be announced on the Public Meetings page once scheduled. If you have any comments on the CAP proposed routes, please contact a PAT member in your area.

Upon completion of the CAP, Idaho Power will resubmit its applications to the BLM and the USFS, and update the ODOE-EFSC, with the proposed and alternate routes. The BLM and the ODOE-EFSC will then proceed with their environmental review processes.

Revised Route Maps

Following a preliminary evaluation, Idaho Power’s technical team revised the initial proposed routes to improve their potential permitability. These revised routes are shown below.

Visit the Map Archive page to view the initial proposed routes (fall 2009) and the preliminary evaluation criteria.

• Revised Routes Overview	• Revised Route 4
• Revised Route 1	• Revised Route 5
• Revised Route 1A	• Revised Route 6
• Revised Route 2
• Revised Route 3

Revised Routes - Detailed Evaluation

Permitting, Constructability, Mitigation Cost | Region Overview | Analysis by Region | Region Maps

Idaho Power’s technical team conducted a detailed analysis of each of the revised routes to further evaluate their potential permitability, constructability and mitigation costs.

The maps below show a summary of the permitting, constructability and mitigation cost analysis for the revised routes.

Please note that analysis is complete but not yet placed in tabular form for the lines interconnecting the regions. This information will be available prior to the next series of PAT meetings in March.

• Revised Routes – Permitting Analysis
• Revised Routes – Constructability Analysis
• Revised Routes – Mitigation Cost Analysis

Idaho Power divided the revised routes into 14 regions for detailed analysis.

• Revised Routes – Region Overview
• Constraints Crossed – Permitting Difficulty: This table shows all of the constraints crossed by the various revised routes and the level of permitting difficulty associated with each constraint.

Each revised route was analyzed based on:

• Permitting difficulty: The relative difficulty of obtaining necessary permits from federal, state and local governments.
• Construction difficulty: The relative difficulty associated with building the line in a given route. Considerations include terrain, road construction, equipment movement and tree removal.
• Mitigation cost: The relative cost associated with mitigation actions required by permitting authorities necessary to permit a route.

As part of the analysis, Idaho Power identified which routes are considered to be the most reasonable for each region. Please note that Idaho Power has not made any recommendations as to an overall proposed route.

Idaho Power also prepared a mileage summary table and data table for each region.

• The mileage summary table identifies the number of miles that have:
• Permitting difficulty (low, moderate, high and exclusion)
• Construction difficulty (low, moderate and high)
• Mitigation costs (low, moderate and high)
• The data table summarizes the number of miles of regulatory and community criteria that apply to the route. (In addition to regulatory criteria, Project Advisory Teams identified community criteria that they wanted considered when determining a route. The “Community Siting Criteria” is described below.)

The analysis results, including the mileage summary table and data table, are shown below for each of the 14 regions. Please note that some regions may be located in more than one PAT area.

North PAT	Grant County PAT
• Boardman	• Blue Mountain
• Morgan – Ione	• Onion Creek
• Pilot Rock	• Southwest Region
• Umatilla National Forest
• West of National Forest Utility Corridor	Harney County PAT
	• Southwest Region
Central PAT
• Blue Mountain	South PAT
• Burnt River	• Burnt River
• Interpretive Center	• Snake River Valley
• Lime	• Southwest Region
• Onion Creek	• West of Vale
• Weatherby

The PATs and the public identified community, natural, cultural and physical resources that should be considered by Idaho Power when siting the transmission line route. Idaho Power reviewed these resources and identified additional siting criteria. The siting criteria shown below were used in the development and analysis of the initial proposed routes.

• Community Siting Criteria - Opportunities and Constraints
• Community and Idaho Power Siting Criteria - Opportunities and Constraints*

*Community-identified resources are highlighted in blue.

This Web site is the joint Boardman to Hemingway Transmission Line Project site. Information contained on this site is approved for posting by Idaho Power. Visit the Idaho Power Web site.