“Iowa Highway 196”的意思、由来-开放百科全书

Iowa Highway 196 (Iowa 196) was a state highway located in Sac County. Its began east of Lake View at an intersection with U.S. Route 71 (US 71) and Iowa 175 and ended at US 20 northeast of Sac City. Designated in the 1930s, the route always served as a connection between US 71 and US 20.

Route description

Iowa Highway 196 served as a cutoff between US 71 and US 20. It began at an intersection with US 71 and Iowa 175 east of Lake View. The route headed due north for {{convert|7+3/4|mi}} through rural Sac County to US 20 east of Sac City.^[1] Just before the intersection with old US 20, it crossed Cedar Creek, a tributary of the Raccoon River.^[3] It then continued north approximately {{convert|2+1/3|mi}} to an interchange with the new US 20 expressway.^[4] Along US 71 / Iowa 175, Iowa 196 was signed TO US 20, and along US 20, it was signed TO US 71 south. US 71 north was not mentioned because the two routes met near Early.

History

Iowa 196 was designated in 1935 along most of the corridor it used for 80 years. The highway's northern end was in Sac City just over {{convert|1|mi|km|spell=in}} west of where it is today. Around the same time, US 71, which had lain {{convert|1|to|3|mi}} to the west of what is now Iowa 196, was moved farther to the west bypassing Sac City entirely.^[2]^[5] In the early 1950s, the northern end of Iowa 196 was moved east of Sac City, and the routing did not change after that. Prior to the 1950s, Iowa 196 was a gravel road.^[6] It was macadamized in the early 1950s, but was fully paved by 1956.^[7]^[8]

In the early 2010s, US 20 was upgraded to a four-lane expressway north of its former two-lane alignment. Iowa 196 was extended along what was County Road N14 (CR N14) approximately {{convert|2+1/3|mi}} north to an interchange along the new expressway.^[9] In March 2015, the highway was shut down in order to be reconstructed completely. Upon completion of the project, US 71 was rerouted over the new road and Iowa 196 no longer existed.^[10]

Major intersections

References

1. ^¹²{{IowaDOT|2013-06-11|year=2012}}
2. ^¹{{Cite IowaDOT map|accessdate=February 18, 2012|year=1935}}
3. ^{{cite map|publisher=Iowa Department of Transportation|title=Highway and Transportation Map|url=http://www.iowadot.gov/maps//msp/pdf/Sac.pdf|accessdate=February 19, 2012|date=January 1, 2011|series=Sac County|format=PDF}}
4. ^{{Cite IowaDOT map|accessdate=June 11, 2013|year=2013|link=no}}
5. ^{{Cite IowaDOT map|accessdate=February 18, 2012|year=1934|link=no}}
6. ^{{Cite IowaDOT map|accessdate=February 18, 2012|year=1952|link=no}}
7. ^{{Cite IowaDOT map|accessdate=February 19, 2012|year=1953|link=no}}
8. ^{{Cite IowaDOT map|accessdate=February 19, 2012|year=1956|link=no}}
9. ^{{cite web|url=http://www.iowadot.gov/commission/pdf/12-14-2010%20Commission%20Minutes.pdf|title=Iowa Transportation Commission minutes|date=December 10, 2010|publisher=Iowa Department of Transportation|pages=11–12|accessdate=February 18, 2012}}
10. ^{{cite news|last1=Helling|first1=Jesse|title=U.S. 71 reroute to replace Iowa 196|url=http://www.messengernews.net/page/content.detail/id/584806/U-S--71-reroute-to-replace-Iowa-196.html?nav=5010|accessdate=November 28, 2015|work=The Messenger|date=March 14, 2015|location=Fort Dodge, Iowa}}