Modular trench drain system

A drain system for placement in at least one of a natural surface and pavement area and subjected to an inward pressure associated with at least one of expansion and contraction of the natural surface or pavement area, the drain system comprising:

• a conduit body including a lower wall and first and second opposing sidewalls extending from said lower wall to define a longitudinally-extending channel;
• a cover member connectable to said conduit body and operable between an open position exposing said channel and a closed position covering said channel, said cover member comprising a body including a lower surface that faces into said channel and an upper surface that is coplanar with the contiguous surface of the natural surface or pavement area;
• a coupling device for securing said cover member to said conduit body when said cover member is in said closed position;
• and
• a locking device for providing a locking connection between said cover member and said conduit body when said cover member is in said closed position;
• and
• an alignment mechanism for aligning said cover member with respect to said conduit body, said alignment mechanism including a second coupling device comprising an alignment bar that projects from said lower surface of said cover member and an alignment flange member,
• wherein said alignment bar includes a contact surface adapted to apply a support force to a distal end of said alignment flange member.