- Illinois Route 251
Infobox Illinois state route
article_route = 251
length_mi = 135.32
length_round = 2
length_ref = cite web |author=Illinois Technology Transfer Center |url=http://www.dot.state.il.us/gist2/select.html |title=T2 GIS Data |accessdate=2007-11-08 |date=2006]
direction = North-south
cities = Rochelle, Rockford
established = Early 1970sCarlson, Rich. [http://www.n9jig.com/203-up.html Illinois Highways Page: Routes 200 thru end] . Last updated April 15, 2005. Retrieved May 12, 2006.]
prev_route = 250
next_route = 255
next_type = Interstate
Illinois Route 251 is a north-south state road that runs on the former alignment of U.S. Route 51 before Interstate 39 was built in central
Illinois. It runs from U.S. 51 at the border with Wisconsinto I-39 and U.S. 51 south of Kappa. Illinois 251 is convert|135.32|mi|km|2|lk=on long.
Illinois 251 runs parallel to Interstate 39 and U.S. 51 for most of the length of I-39 in Illinois. Like
Illinois Route 351, it can be considered a spur or loop of its parent route, U.S. 51. Illinois 251 terminates about convert|10|mi|km|0|abbr=on north of the southern terminus of I-39.
The road parallels the Rock River through Rockford on the east side.
Illinois Route 2follows the west side of the Rock River.
Illinois 251 was established in 1984 when first segment of I-39 opened between Rockford and Bloomington. In 1992, the final segment of I-39 opened north of Bloomington. The remaining stretch of Former U.S. 51 became Illinois 251.AARoads. [http://www.interstate-guide.com/i-039.html Interstate 39 @ Interstate-Guide.com] .] The initial designation of I-39 was U.S. Route 51 until 1992.
* [http://illi-indi.com/il_EndsPage.php?id=1251§ion=1 Illinois Highway Ends: Illinois Route 251]
Wikimedia Foundation. 2010.