Question: how is Kentucky Route 8 and U.S. Route 23 related?

Context paragraphs:
New Jersey Route 284: Route 284 is a 7.03-mile (11.31 km) state highway in New Jersey, United States, running from Route 23 in Sussex north to the New York state line in Wantage Township.  New York State Route 284 continues north to U.S. Route 6 at Slate Hill, New York.  The route is a connector to Unionville, and intersects with an old alignment of its original designation, Route 84.  Route 284 was first a part of Route 8 in the 1920s, becoming Route 8N in 1927 and Route 84 in 1942 before being assigned Route 284 in 1966.

Kentucky Route 80: Kentucky Route 80 (KY 80) is a 483.55 mi state highway in the southern part of the U.S. state of Kentucky.  The route originates on the state's western border at Columbus in Hickman County, and stretches across the southern portion of the state, terminating southeast of Elkhorn City on the Virginia state line.  It is the longest Kentucky State Highway, though the official distance as listed in route logs is much less due to multiple concurrencies with U.S. Route 68 (US 68) and U.S. Route 23.

Jesse Stuart Memorial Bridge: The Jesse Stuart Memorial Bridge is a viaduct bridge on top of the Greenup Lock and Dam on the Ohio River.  The bridge, named after author and Greenup County, Kentucky native Jesse Stuart, was completed in 1984 and carries Kentucky Route 10 (unsigned) from the AA Highway/U.S. Route 23 intersection to the bridge itself, where it becomes State Route 253 to U.S. Route 52.  The Ohio approach has a ramp to a rest area operated by the Ohio Department of Transportation.  There is also a park on the Kentucky side of the bridge, which is open for fishing and recreation.  This park is operated by the United States Army Corps of Engineers.  Both facilities, and the bridge itself, were briefly closed after the September 11 attacks due to terrorism concerns since they are all part of the Greenup Locks and Dam complex.  They have since reopened; however, access to the observation platforms on both sides of the dam is no longer permitted.

Kentucky Route 8: Kentucky Route 8 is a 114.202 mi east–west state highway divided into two distinct segments across northern Kentucky.  The western terminus of the route is at KY 237 near Francisville.  The eastern terminus is at U.S. Route 23 in South Portsmouth.  The two distinct segments of this route were not meant to be connected together.

U.S. Bicycle Route 8: U.S. Bicycle Route 8 (USBR 8) is the northern most U.S. Numbered Bicycle Route which runs between Fairbanks and the Canada–US border in the state of Alaska.  The route lies entirely within Alaska, and much of it follows the Alaskan Highway.  It has two spur routes, U.S. Bicycle Route 108 and U.S. Bicycle Route 208.  Bike Route 108 starts in Tok and ends in Anchorage.  Bike Route 208 follows the Haines Highway from the Alaska Marine Highway terminal in Haines to the Canada–US border; it is planned to connect to its parent route in Haines Junction, Yukon.  The routes were approved by AASHTO in early May 2011, making them one of the first expansions of the U.S. Bike Route system since 1982.  Bike Route 8 has connections to U.S. Bicycle Route 97 in Fairbanks, U.S. Bicycle Route 95 in Delta Junction, and U.S. Bicycle Route 108 in Tok.  Bike Route 108 connects to U.S. Bicycle Route 95 in Anchorage.

U.S. Route 23: U.S. Route 23 (US 23) is a long north–south U.S. Highway between Jacksonville, Florida, and Mackinaw City, Michigan.  It is an original 1926 route which originally reached only as far south as Portsmouth, Ohio, and has since been extended.

Massachusetts Route 8: Massachusetts Route 8 is a state highway in the U.S. state of Massachusetts.  The highway runs 66.643 mi from the Connecticut state line in Sandisfield, where the highway continues as Connecticut Route 8, north to the Vermont state line in Clarksburg, where the highway continues as Vermont Route 8 and VT 100.  Route 8 serves several towns in eastern and northern Berkshire County.  The highway is the main highway between the cities of Pittsfield and North Adams, where the route intersects Route 9 and Route 2, respectively.  Route 8 also intersects U.S. Route 20 (US 20) in Becket.

Kentucky Route 29: Kentucky Route 29 (KY 29) is an 11.324 mi state highway located entirely within Jessamine County in the U.S. state of Kentucky.  The highway, maintained by the Kentucky Transportation Cabinet, runs north from High Bridge, Kentucky through Wilmore before ending at Nicholasville.  Within Wilmore, KY 29 intersects Kentucky Route 1268 and junctions with Kentucky Route 3433.  The highway acts as the border between Asbury University and Asbury Theological Seminary.  Just north of Wilmore, KY 29 merges with U.S. Route 68 for 0.590 mi before leaving US 68 and turning east heading towards Nicholasville.  KY 29 terminates at Kentucky Route 39 and U.S. Route 27 Business in downtown Nicholasville.

Kentucky Route 2: Kentucky Route 2 is an east–west state highway extending 36.887 miles (59.361 km) across northeast Kentucky.  The western terminus of the route is at U.S. Route 60 in Olive Hill, Carter County.  The eastern terminus is at Kentucky Route 2541 in Greenup, Greenup County a short distance east of U.S. Route 23.

New Jersey Route 23: Route 23 is a state highway in the northern part of New Jersey in the United States.  The route runs 52.63 mi from County Route 506 (Bloomfield Avenue) and County Route 577 (Prospect Avenue) in Verona, Essex County northwest to the border with New York at Montague Township in Sussex County, where the road continues to Port Jervis, New York as Orange County Route 15.  Route 23 heads through Essex and Passaic Counties as a suburban arterial varying from two to four lanes and becomes a six-lane freeway north of a complex interchange with U.S. Route 46 and Interstate 80 in Wayne.  The freeway carries Route 23 north to a concurrency with U.S. Route 202.  Past the freeway portion, the route heads northwest along the border of Morris and Passaic Counties as a four- to six-lane divided highway with a wide median at places, winding through mountainous areas and crossing Interstate 287 in Riverdale.  The route continues northwest through Sussex County as a mostly two-lane, undivided road that passes through farmland and woodland as well as the communities of Franklin, Hamburg, and Sussex before reaching the New York border just south of an interchange with Interstate 84 near High Point State Park.

Supporting paragraphs: Kentucky Route 8 U.S. Route 23
Answer: highway