CREATE TABLE table_44961 ("Name" TEXT, "Built" TEXT, "Listed" TEXT, "Location" TEXT, "County" TEXT)

Who built the conant creek pegram truss railroad bridge?
SELECT "Built" FROM table_44961 WHERE "Name" = 'conant creek pegram truss railroad bridge'
SELECT "Built" FROM "table_44961" WHERE "Name" = 'conant creek pegram truss railroad bridge'