Table:
text: List of bridges on the National Register of Historic Places in Arizona
List of bridges on the National Register of Historic Places in Arizona
List of bridges on the National Register of Historic Places in Arizona
Name_ Built Listed Location_ County
Cienega Bridge 1921 1988-09-30 Vail Pima
Cordova Avenue Bridge 1921 1989-03-31 Miami Gila
Corduroy Creek Bridge 1937 1988-09-30 Show Low Navajo
Dead Indian Canyon Bridge 1933 1988-09-30 Desert View Coconino
Dead Indian Canyon Bridge 1934 1988-09-30 Desert View Coconino
Devil`s Canyon Bridge 1921, 1922 1988-09-30 Superior Pinal
Douglas Underpass 1936 1988-09-30 Douglas Cochise
Fish Creek Bridge 1923 1988-09-30 Tortilla Flat Maricopa
Fossil Creek Bridge 1924, 1925 1988-09-30 Camp Verde Gila , Yavapai
Fourth Avenue Underpass 1916 1988-09-30 Tucson Pima
Gila Bend Overpass 1934 1988-09-30 Gila Bend Maricopa
Gila River Bridge 1918 1988-09-30 Clifton Greenlee
Gillespie Dam Highway Bridge 1926, 1927 1981-05-05 Gila Bend Maricopa

Question: From the list of bridges on the Arizona National Register of Historic Places, what year was the Gila Bend Overpass built?