Route 78 North
North 
East
IL 78 north and IL 92 east overlap for 0.9 miles from 2800th Avenue to 2900th Avenue.
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IL 78/92 part ways at a rural T-intersection in Yorktown township.
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Resuming an eastward course, IL 92 crosses into Bureau County in four miles and intersects IL 40 in 13 miles. Mendota lies 43 miles to the east in La Salle County.
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North
Confirming marker and distance sign for IL 78 north beyond the split with IL 92 east. The Whiteside County seat of Morrison is an 18 mile drive northward.
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The 31.1 mile route of IL 78 in Henry County concludes as the state route crosses into Prophetstown township in Whiteside County.
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Bishop Road leads IL 78 north across agricultural areas of south central Whiteside County.
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Northbound IL 78 at the Prophetstown city line.
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Prophetstown is part of the Illinois Main Street Program. Developed in 1980 by the National Trust for Historic Preservation, the program assists local organizations that revitalize their communities and foster economic development.1
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IL 78 angles northeast along Washington Street from a wye intersection with Bishop Road through the Prophetstown residential street grid.
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Washington Street continues IL 78 north into Downtown Prophetstown.
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IL 78 intersects 3rd Street on the north end of Downtown. 3rd Street leads east to Prophetstown State Park. Outside the city, Star Road (County Road 3) takes over en route to IL 172 south to Tampico in 7.9 miles and to IL 40 in 14 miles.
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IL 78 turns west from Washington Street onto 2nd Street.
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Johnson Drive curves IL 78 northwest from 2nd Street and College Avenue to Grove Street by Prophetstown High School.
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North from Prophetstown, IL 78 continues 11 miles to the county seat of Morrison and 32 miles to Mt. Carroll (U.S. 52).
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IL 78 (Bishop Road) next spans the Rock River on a bridge built in 1994.
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Running along the west side of the Lyndon village line, IL 78 (Bishop Road) meets Commercial Street, the former route of IL 2.
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Commercial Street travels a short distance east from IL 78 to the Lyndon business district. East from the village, old IL 2 resumes along Moline Road toward U.S. 30 near Como.
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IL 78 travels westward along Bishop Road between the Lyndon area and Hamilton Corners.
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A northbound sign for IL 78 lists the distances to Morrison (U.S. 30) and Mt Carroll (IL 40 and IL 64).
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IL 78 turns from Former IL 2 / Bishop Road onto Crosby Road north at Hamilton Corners.
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Old IL 2 (Moline Road) continues southwest seven miles to Erie. IL 2 was decommissioned with the completion of the East-West Tollway (IL 5) in 1974.
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Crosby Road leads IL 78 north from Hamilton Corners to Interstate 88 at Exit 24.
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Advancing to I-88/IL 110 (CKC) along IL 78 (Crosby Road) north at Mohawk Road. Mohawk Road leads east to Lyndon where the closest motorist services to I-88 in western Whiteside County are located.
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I-88/IL 110 (Chicago Kansas City Expressway) is a toll free route east to Exit 44 / U.S. 30.
06/23/22
Signage for Interstate 88 uses Dixon in lieu of Chicago for the eastbound direction. Dixon is 30 miles away from IL 78 along I-88 (Ronald Reagan Memorial Highway).
06/23/22
IL 78 (Crosby Road) spans I-88/IL 110 (CKC) ahead of the westbound entrance ramp to the Quad Cities.
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Motorists bound for East Moline and Interstate 80 depart Crosby Road north for I-88/IL 110 west.
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IL 78 continues north from I-88/IL 110 six miles to Morrison and U.S. 30. The Carroll County seat follows in 27 miles.
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County Road 23 overlays Black Road west from IL 78 (Crosby Road) three miles to the unincorporated community of Fenton.
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Reassurance marker posted north of Black Road and CR 23 west.
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Paralleling Rock Creek, IL 78 (Crosby Road) bends eastward between Wayne and Bunker Hill Roads.
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IL 78 enters the city of Morrison just ahead of French Creek Road and Morrison Industrial Park.
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Crosby Road becomes Portland Avenue through residential areas of south Morrison.
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Clinton Street angles northeast from Winfield Street to overtake Portland Avenue as part of the route for IL 78 through Morrison.
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Clinton Street carries IL 78 two blocks north to Wall Street west.
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Wall Street dog legs IL 78 west two blocks to Cherry Street on the approach to Downtown Morrison.
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IL 78 (Cherry Street) crosses a Union Pacific Railroad line at-grade just north of the turn from Wall Street.
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Cherry Street (IL 78) north at Market Street in the Morrison business district.
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IL 78 intersects Main Street just ahead of the overlap with U.S. 30 (Lincoln Highway) west through Downtown Morrison.
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U.S. 30 (Lincoln Highway) parallels the Union Pacific Railroad corridor east to Agnew and west to Clinton, Iowa. U.S. 30 bee lines east from I-88 at Rock Falls to Aurora and the west Chicago suburbs.
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West North
Lincoln Highway west intersects Genesee Street one block into the U.S. 30/IL 78 concurrency at Morrison.
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U.S. 30/IL 78 advance a half mile northwest from Garden Plain Road to their separation at Carroll Road north.
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U.S. 30 continues west from IL 78 (Carroll Road) toward both Fulton and East Clinton, both of which lie on the east side of the Mississippi River.
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References:
- Illinois Main Street. Illinois.gov.
Photo Credits:
- Alex Nitzman, Bill Gatchel: 03/12/17
- Alex Nitzman: 06/23/22
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Page Updated Saturday December 09, 2023.