CHAMPAIGN — Ameren Transmission has outlined several potential route corridors it may use for a high-voltage transmission line connecting its Sidney and Rising substations.
All the potential corridors run west from Sidney to points along or west of Interstate 57, then north to the Rising substation northwest of Champaign.
Maps displayed at an open house Tuesday at the Hilton Garden Inn showed:
— The east-west leg might follow a corridor along County Road 900 N or one lying midway between county roads 600 N and 700 N. The former would put the line on the north side of Philo; the latter would put it on the south side.
— The north-south leg might follow a corridor along County Road 700 E (Rising Road); one along County Road 600 E; or one midway between county roads 400 E and 500 E. The first two would put the line to the east of Bondville; the third would put it on Bondville's west side.
Each corridor is about 2,000 feet wide, so there's a lot of leeway for determining the eventual route.
Ameren Transmission spokesman Leigh Morris said after public feedback on the potential corridors is received, routes will be proposed and be shown to the public at an open house in Champaign in early October.
Ameren will likely identify at least one "primary" route and at least one "alternative" route.
The line is part of the Illinois Rivers transmission project, which will include a 345,000-volt line extending from Palmyra, Mo., to west of Terre Haute, Ind. That line would run through Quincy, Meredosia, Pawnee, Pana, Mount Zion and Kansas, Ill.
The line between Rising and Sidney, estimated to be about 28 miles long, is separate from that but also carries 345,000 volts.
The section of the Missouri-to-Indiana line east of Mount Zion would likely extend through Moultrie, Coles, Edgar and Clark counties, according to Ameren Transmission maps.
The northernmost of those potential route corridors would run along the southern borders of Piatt and Douglas counties.
Ameren Transmission expects to file a case seeking approval from the Illinois Commerce Commission in November, with a final order expected no later than July 2013.
More information is at http://www.ilriverstransmission.com .