Purpose: This study aims to analyze the impact of the W. R. Supratman Road infrastructure development on the local economy in Pasar Sentral Subdistrict, Mimika Regency. The research focuses on assessing its influence on community income, business growth, and the distribution of goods and services.

Research/methodology: A descriptive quantitative approach was employed, using a paired sample t-test to compare economic indicators before and after the road development. Primary data were collected through questionnaires distributed to 30 purposively selected residents and local business actors. Secondary data were obtained from relevant government institutions. Data analysis included descriptive statistics and triangulation through interviews and direct field observations.

Results: The findings reveal that the road development significantly increased average household income by Rp. 683,333, improved business opportunities by 1.72 points, and enhanced the distribution of goods and services by 1.97 points. These results indicate a notable improvement in local economic activities following infrastructure development.

Conclusions: The construction of W. R. Supratman Road has had a positive impact on the economic conditions of the Pasar Sentral community, improving accessibility, fostering business growth, and enhancing community welfare. The improved infrastructure led to increased trade flows and rising property values, contributing to inclusive regional development.

Limitations: The study is limited by its small sample size and short-term scope, which may not fully capture the long-term or broader regional economic impacts of the infrastructure development.

Contribution: This research provides empirical evidence supporting the role of targeted road infrastructure in promoting local economic resilience and inclusive development, offering insights for policymakers in regional planning.