void BuildBridge(uint8 i)
	{
		switch ((TransportType)(this->type >> 15)) {
			case TRANSPORT_RAIL: _last_railbridge_type = this->bridges->Get(i)->index; break;
			case TRANSPORT_ROAD: _last_roadbridge_type = this->bridges->Get(i)->index; break;
			default: break;
		}
		DoCommandP(this->end_tile, this->start_tile, this->type | this->bridges->Get(i)->index | (_bridge_cur_road_subtype << 17),
					CMD_BUILD_BRIDGE | CMD_MSG(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE), CcBuildBridge);
	}