Repair and rebuild railroad track. Physical duties will require frequent walking over extended areas with uneven footing; flexibility sufficient for track maintenance tasks such as flexing to pick up tie plates; balance sufficient to walk on ballast; standing for more than half of each work day with periodic breaks; lift/carry and push/pull equipment and other objects weighing 25 lbs. (frequently), 50 lbs. (occasionally), and 75 lbs. (infrequently); occasional climbing on ladders; bending, stooping, and kneeling; good eye-hand coordination; and bilateral dexterity.