Question: When was the longest U.S. race track for Defunct paved ovals built ?

text: List of auto racing tracks in the United States
Paved ovals -- Defunct paved ovals

This is a list of all auto racing tracks in the United States. The track length stands for the standard, full courses for each track. The major series listed are only series that currently hold a race at the track.
Track Name Location Length Shape/Surface
Altamont Motorsports Park California Tracy 37°44′17″N 121°33′48″W / 37.738039°N 121.563249°W / 37.738039 ; -121.563249 0.50 miles ( 0.80 km ) & 0.25 miles ( 0.40 km )  Closed in 2008
Asheville-Weaverville Speedway North Carolina Asheville 35°44′25″N 82°33′28″W / 35.740382°N 82.557793°W / 35.740382 ; -82.557793 0.333 miles ( 0.536 km ) Oval Closed in 1987
Augusta International Raceway Georgia Augusta 33°21′24″N 82°5′14″W / 33.35667°N 82.08722°W / 33.35667 ; -82.08722 0.50 miles ( 0.80 km ) Oval Closed in 1970
Beltsville Speedway Maryland Laurel 39°02′47″N 76°51′05″W / 39.046319°N 76.851296°W / 39.046319 ; -76.851296 0.50 miles ( 0.80 km ) Oval Closed in 1978
Birmingham International Raceway Alabama Birmingham 33°29′52″N 86°52′17″W / 33.49778°N 86.87139°W / 33.49778 ; -86.87139 0.625 miles ( 1.006 km )  Demolished in 2009
Bremerton Speedway Washington Bremerton 0.90 miles ( 1.45 km ) Oval ( asphalt ) Closed in 1959
Catamount Stadium Vermont Milton 0.36 miles ( 0.58 km ) Oval ( asphalt ) Closed in 1989
Champion Speedway North Carolina Fayetteville 0.333 miles ( 0.536 km ) Oval Closed in 1959
Chicago Motor Speedway Illinois Cicero 41°49′50″N 87°44′55″W / 41.83056°N 87.74861°W / 41.83056 ; -87.74861 1.029 miles ( 1.656 km )  Closed in 2003 Demolished in 2005
Columbia Speedway South Carolina Columbia 33°57′30″N 81°04′40″W / 33.95833°N 81.07778°W / 33.95833 ; -81.07778 0.50 miles ( 0.80 km ) Oval Closed in 1977
Dayton Speedway Ohio Dayton 39°43′27″N 84°15′22″W / 39.72417°N 84.25611°W / 39.72417 ; -84.25611 0.50 miles ( 0.80 km ) Oval Closed in 1982
Dixie Speedway Alabama Birmingham 0.25 miles ( 0.40 km ) Oval Closed in 1983
Dog Track Speedway North Carolina Moyock 36°32′45″N 76°11′33″W / 36.545867°N 76.192524°W / 36.545867 ; -76.192524 0.333 miles ( 0.536 km ) Oval Closed in 1974
Flemington Speedway New Jersey Flemington 40°31′35″N 74°51′10″W / 40.52639°N 74.85278°W / 40.52639 ; -74.85278 0.625 miles ( 1.006 km )  Closed in 2002 Demolished in 2005
Golden Gate Speedway Florida Tampa 28°03′23″N 82°20′29″W / 28.0564067°N 82.3414805°W / 28.0564067 ; -82.3414805 0.333 miles ( 0.536 km ) Oval Closed in 1984
Horace Mann Speedway Massachusetts Franklin 0.50 miles ( 0.80 km ) Oval ( asphalt ) Closed in 1973
I-70 Speedway Missouri Odessa 39°0′38″N 93°52′33″W / 39.01056°N 93.87583°W / 39.01056 ; -93.87583 0.525 miles ( 0.845 km )  Closed in 2008
Islip Speedway New York Islip 40°44′58″N 73°12′41″W / 40.7495°N 73.2115°W / 40.7495 ; -73.2115 0.20 miles ( 0.32 km ) Oval Closed in 1984
Lake Geneva Raceway Wisconsin Lake Geneva 42°34′38″N 88°24′22″W / 42.577354°N 88.406115°W / 42.577354 ; -88.406115 0.333 miles ( 0.536 km ) & 0.25 miles ( 0.40 km ) Oval ( asphalt ) Demolished after 2006 season
Little Egypt Kart Raceway Park Vermont Lyndon 0.20 miles ( 0.32 km ) Oval ( asphalt ) Closed in 2001