Vehicle lower portion structure

A vehicle lower portion structure comprising:

• a plurality of cross members extending in a vehicle width direction of a vehicle and disposed spaced apart from each other in a vehicle front-rear direction;
• a toeboard that is disposed forward of a frontmost cross member among the plurality of cross members, and has a shape extending in the vehicle width direction and curved upward toward a vehicle front;
• a reinforcement member affixed in a range in the front-rear direction including a rear end portion of the toeboard to reinforce the toeboard;
• and
• a battery that includes battery cells and a battery housing accommodating the battery cells, and is disposed under the plurality of cross members,
• wherein
• a rear end portion of the reinforcement member is affixed to the frontmost cross member,
• the battery has at least one intermediate frame extending in the front-rear direction within an area that is occupied by the battery housing in plan view, and
• the frontmost cross member is affixed to the intermediate frame.