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A road connecting Marion to New
Burnside was first marked on Illinois highway maps in 1922. Route 166 was designated along its current route in 1924 as a paved road 9 feet (2.7 m) wide connecting New Burnside and Creal Springs. The route was first marked between Route 13 and Creal Springs on the
313:. The route heads north from New Burnside, passing through rural Johnson County before crossing into Williamson County. In Williamson County, the highway turns west and passes through
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1929 state highway map; at this point, it had not been paved. By 1931, Route 166 was completed to New
Burnside and paved between Route 13 and
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1.000 mi = 1.609 km; 1.000 km = 0.621 mi
557:"Overview map of Route 166 Distances Between Interchanges"
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584:"1922 Map Showing Marked Through Routes in Illinois"
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745:Illinois Highways Page: Routes 161 thru 180
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750:Illinois Highway Ends – Illinois Route 166
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614:. State of Illinois. 1923. p. 267
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16:State highway in southern Illinois, US
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660:"1931 Official Illinois Highway Map"
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321:-controlled intersection with
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273:to its northern terminus at
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289:. It is maintained by the
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692:. Illinois State Library
686:"1934 Illinois Road Map"
666:. Illinois State Library
640:. Illinois State Library
590:. Illinois State Library
527:. 2010. Archived from
489:. 1994. Archived from
301:Route 166 begins at a
740:KML is from Wikidata
309:on the east side of
342:Major intersections
303:3-way intersection
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365:Destinations
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71:1924–present
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562:Google Maps
462:November 8,
323:Illinois 13
238:IL 167
223:IL 165
759:Categories
439:References
423:IL 13
404:Williamson
395:US 45
336:Caneyville
287:Williamson
183:Interstate
156:Williamson
109:IL 13
90:US 45
113:Pittsburg
718:KML file
696:March 7,
670:March 7,
644:March 7,
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568:March 7,
538:March 7,
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352:Location
293:(IDOT).
277:east of
259:Illinois
198:Tollways
148:Counties
142:Illinois
123:Location
559:(Map).
523:(Map).
485:(Map).
408:
374:Johnson
329:History
283:Johnson
152:Johnson
128:Country
68:Existed
349:County
279:Marion
255:IL 166
203:Scenic
60:Length
532:(PDF)
521:(PDF)
494:(PDF)
483:(PDF)
368:Notes
305:with
193:State
138:State
727:help
723:edit
698:2011
672:2011
646:2011
620:2011
596:2011
570:2011
540:2011
502:2011
464:2007
414:23.2
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285:and
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386:0.0
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269:in
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761::
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361:km
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
