Question: What U.S. Route runs through Clay Township down to Jacksonville, Florida?

Context paragraphs:
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.

Pennsylvania Route 252: Pennsylvania Route 252 (PA 252) is a north–south route that connects PA 320 in Nether Providence Township at its southern terminus to PA 23 in Valley Forge at its northern terminus.  The route runs through various townships and boroughs in Delaware and Chester, and Montgomery counties, including Nether Providence Township, Media, Upper Providence Township, Marple Township, Newtown Township, Easttown Township, Tredyffrin Township, and Upper Merion Township.  The route intersects many roads including U.S. Route 1 (US 1) north of Media, PA 3 in Newtown Square, US 30 in Paoli, and US 202 in Tredyffrin Township.

Pennsylvania Route 452: Pennsylvania Route 452 (PA 452) is a state highway in Delaware County, Pennsylvania.  The route runs from U.S. Route 13 (US 13) in Marcus Hook north to PA 352 in Lima.  The route runs through suburban areas, passing through Linwood and Aston Township.  PA 452 intersects Interstate 95 (I-95) and US 322 in Upper Chichester Township and US 1 in Lima.  PA 452 was first designated by 1928 between its current termini.  A portion of the route in Aston Township was realigned by 1950.

Maryland Route 2: Maryland Route 2 (MD 2) is the longest state highway in the U.S. state of Maryland.  The 79.24 mi route runs from Solomons Island in Calvert County north to an intersection with U.S. Route 1 (US 1) and US 40 Truck (North Avenue) in Baltimore.  The route runs concurrent with MD 4 through much of Calvert County along a four-lane divided highway known as Solomons Island Road, passing through rural areas as well as the communities of Lusby, Port Republic, Prince Frederick, and Huntingtown.  In Sunderland, MD 2 splits from MD 4 and continues north as two-lane undivided Solomons Island Road into Anne Arundel County, still passing through rural areas.  Upon reaching Annapolis, the route runs concurrent with US 50 and US 301 around the city.  Between Annapolis and Baltimore, MD 2 runs along the Governor Ritchie Highway (also known as the Ritchie Highway), a multilane divided highway that heads through suburban areas, passing through Arnold, Severna Park, Pasadena, Glen Burnie, and Brooklyn Park.  In Baltimore, the route heads north on city streets and passes through the downtown area of the city.

New Jersey Route 34: Route 34 is a state highway in the central part of the U.S. state of New Jersey.  The route runs 26.79 mi from an intersection with Route 35 and Route 70 (the former Brielle Circle) in Wall Township, Monmouth County north to an intersection with U.S. Route 9 (US 9) in Old Bridge Township, Middlesex County.  The route is a four-lane divided highway between its southern terminus and the north end of the Route 33 concurrency in Howell Township; along this stretch, the route intersects the Garden State Parkway and Interstate 195 (I-195)/Route 138 within a short distance of each other.  North of Route 33, Route 34 is an undivided two- to four-lane road that intersects Route 18 in Colts Neck Township and Route 79 in Matawan.  Route 34 passes through mostly suburban areas along its route.

Pennsylvania Route 901: Pennsylvania Route 901 (PA 901) is a 26.4 mi state route located in eastern Pennsylvania.  The western terminus of the route is at PA 61 in the Coal Township hamlet of Ranshaw.  Its eastern terminus is at PA 183 in Cressona.  PA 901 runs northwest-southeast through forested mountains in the Coal Region within Northumberland and Schuylkill counties.  The route runs concurrent with PA 54 between Locust Gap and Merrian in Mount Carmel Township before it leaves Northumberland County for Schuylkill County.  PA 901 has an interchange with Interstate 81 (I-81) and continues southeast to Minersville.  The route runs concurrent with U.S. Route 209 (US 209) to Pottsville before it splits south and continues to PA 183.

U.S. Route 9 in New Jersey: U.S. Route 9 (US 9) is a U.S. highway in the northeast United States, running from Laurel, Delaware north to Champlain, New York.  In New Jersey, the route runs 166.80 mi from the Cape May–Lewes Ferry terminal in North Cape May, Cape May County, where the ferry carries US 9 across the Delaware Bay to Lewes, Delaware, north to the George Washington Bridge in Fort Lee, Bergen County, where the route along with Interstate 95 (I-95) and US 1 continue into New York City.  US 9 is the longest U.S. highway in the state.  From North Cape May north to Toms River in Ocean County, US 9 is mostly a two-lane undivided road that closely parallels the Garden State Parkway and runs near the Jersey Shore.  Along this stretch, it passes through the communities of Rio Grande, Cape May Court House, Somers Point, Pleasantville, Absecon, Tuckerton, Manahawkin, and Beachwood.  In the Toms River area, US 9 runs along the Garden State Parkway for a short distance before heading northwest away from it and the Jersey Shore into Lakewood Township.  Upon entering Monmouth County, the route transitions into a multilane suburban divided highway and continues through Howell Township, Freehold Township, Manalapan Township, Marlboro Township, Old Bridge Township, Sayreville, and South Amboy.  In Woodbridge Township, US 9 merges with US 1 and the two routes continue through northern New Jersey as US 1/9 to the George Washington Bridge.

Clay Local School District: The Clay Local School District (CLSD) is located four miles (6 km) north of the Portsmouth, Ohio, city limits on U.S. Route 23 in Clay Township in Scioto County—which is 85 mi south of Columbus, Ohio; 50 mi west of Huntington, West Virginia; and 100 mi east of Cincinnati, Ohio.  Clay is a rural Ohio public school district serving 600 students in grades pre-K through 12 in Southern Ohio.  With the creation of a high school (Clay Township High School) for the district in 1940, students for the first time were able to graduate from a Clay Local School District building.

U.S. Route 322 in New Jersey: U.S. Route 322 (US 322) is a U.S. highway running from Cleveland, Ohio east to Atlantic City, New Jersey.  The easternmost segment of the route in New Jersey runs 62.64 mi from the Commodore Barry Bridge over the Delaware River in Logan Township, Gloucester County, where it continues southeast to Atlantic Avenue and Pacific Avenue in Atlantic City, Atlantic County.  The portion of the route between the Commodore Barry Bridge and Route 42 is mostly a two-lane undivided road that is concurrently signed with County Route 536, passing through Mullica Hill and Glassboro.  From Williamstown, US 322 follows the Black Horse Pike, a four-lane road, southeast to Atlantic City.  In Hamilton Township, Atlantic County, US 322 forms a concurrency with U.S. Route 40, continuing with that route all the way to Atlantic City.  US 322 intersects several major roads including U.S. Route 130 and Interstate 295 in Logan Township, the New Jersey Turnpike in Woolwich Township, Route 55 in Harrison Township, Route 42 in Williamstown, Route 50 and U.S. Route 40 in Hamilton Township, the Garden State Parkway in Egg Harbor Township, and U.S. Route 9 in Pleasantville.

New Jersey Route 173: Route 173 is a state highway in New Jersey, United States that is a designation for an old section of U.S. Route 22.  The route runs 14.62 mi from Interstate 78 and U.S. Route 22 in Greenwich Township, Warren County to County Route 626 (Beaver Avenue) in Clinton Township, Hunterdon County, just east of an interchange with Route 31.  Route 173 parallels Interstate 78 and U.S. Route 22 for its entire length through rural areas of Warren and Hunterdon Counties, passing through the towns of Bloomsbury and Clinton along the way.  At one point just to the west of Clinton, Route 173 runs concurrent with Interstate 78 and U.S. Route 22.

Supporting paragraphs: Clay Local School District U.S. Route 23
Answer: U.S. Route 23