Interstate 99, Interstate highway in central Pennsylvania, United States.
Interstate 99 is a major highway in central Pennsylvania that runs through mountainous terrain, linking Bedford County with Centre County and connecting several communities along the way. The route includes multiple exits, rest areas, and service facilities positioned throughout its length.
Construction of this interstate began in 1969, with the initial section opening between Bedford Springs and Exit 3. The completion of the full route represented a major infrastructure achievement for central Pennsylvania.
This route serves as a main link to Pennsylvania State University in State College, where thousands of students and staff depend on it for travel each year. The road has shaped how people access this major educational center in the region.
This route offers direct access to major cities including Altoona and State College, making travel through the region straightforward. Travelers should be prepared for hilly terrain and changing weather conditions, particularly during winter months.
This highway received its number through special legislation rather than following the standard numbering system for interstate highways. This makes it a notable exception in the American road network.
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