https://en.wikipedia.org/wiki/Interstate_49 Construction of I-49 began in 1981 between Opelousas and the small town of Washington.[9][10] This segment joined the portion running concurrent with US 167, an existing limited-access highway, and was completed by 1983.[10][11] By the following year, virtually all remaining rural portions of the route were under construction,[11][12] and 95% of this mileage was…
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