Question: Who built the Conant Creek Pegram Truss Railroad Bridge?
SQL: SELECT "Built" FROM "2-17239214-1" WHERE "Name" = 'Conant Creek Pegram Truss Railroad Bridge';

Question: Where is the historic place that was built in 1910?
SQL: SELECT "Location" FROM "2-17239214-1" WHERE "Built" = '1910';

Question: What is the list date of the historic place that was built 1896, 1914?
SQL: SELECT "Listed" FROM "2-17239214-1" WHERE "Built" = '1896, 1914';

Question: When was the historic place listed that's in Canyon county?
SQL: SELECT "Listed" FROM "2-17239214-1" WHERE "County" = 'Canyon';