This study evaluates the Dual Language Program (DLP) implemented at a Title I public school in Baltimore City during the 2019-2020 and 2020-2021 school years. Building on previous research, the DLP's implementation, sustainability, and effects on students' learning outcomes were examined. Utilizing a mixed-methods approach, the study's second phase included participants from the school's mainstream, English-only program (MP), enriching the overall understanding of the school community's perception of the program. Data were collected through surveys, classroom observations, and standardized assessments--the DIBELS and the iReady Diagnostic assessments. Findings showed challenges with curriculum standardization and prevalent misconceptions about bilingualism. Nevertheless, the program's successes were evident in DLP students' enhanced engagement, parental involvement, and community support. Despite the challenges of the COVID-19 pandemic, the DLP demonstrated its capacity for scaleability and sustainability. During the 2020-2021 school year, regardless of virtual learning, DLP students not only maintained but, in the case of Cohort 1, showed greater growth in reading skills compared to MP students, with Cohort 3 DLP students improving to reach statistically similar performance levels to their MP peers. Findings indicate that the DLP has the potential to serve as a sustainable educational program, fostering both dual language proficiency and academic outcomes.