Interstate 99

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Interstate 99 (abbreviated I-99) is a part of the U.S. Interstate highway system. It is an intrastate only road in Pennsylvania, although the Pennsylvania and New York transportation departments plan to extend the interstate to Painted Post, New York at Interstate 86. Its southern terminus is at Bedford, Pennsylvania at Interstate 76 & Interstate 70 (the Pennsylvania Turnpike) and its northern terminus (as of 2004) is near State College, Pennsylvania at Interstate 80.

Contents 1 Length 2 Major cities along the route 3 Intersections with other Interstates 4 Spur routes 5 Notes 6 External links

Length

Miles	km
58	93	Pennsylvania
58	93	Total

Major cities along the route

• Bedford, Pennsylvania
• Altoona, Pennsylvania
• State College, Pennsylvania

Intersections with other Interstates

• Interstate 70/Interstate 76 at Bedford, Pennsylvania.
• Interstate 80 outside Bellefonte, Pennsylvania.

Spur routes

None

Notes

• I-99 is also known as the (Congressman) Bud Shuster Byway, or as the Appalachian Thruway.

• Interstate 99 intersects Interstate 80 just north of Bellefonte, Pennsylvania. The construction is almost finished, but one section (near Skytop, just west of State College, Pennsylvania) has not yet been completed due to complaints from the Pennsylvania Department of Environmental Protection. Acidic runoff from unearthed pyritic rock is leaking into the groundwater and nearby creeks. Thus, the highway (to become the future I-99) between Skytop and I-80 has been temporarily designated as US 220.

• It appears probable that Interstate 99 will extend north of Interstate 80 in the future, following the US 15 corridor into New York, where it will meet Interstate 86. Signs for "FUTURE Interstate 99" have already been erected along the length of the corridor in New York, and the intersection between US 15 and Interstate 86 is currently being reconstructed to allow a freeway-to-freeway connection. There is also unofficial speculation that Interstate 99 will continue north into Rochester, New York, on what is now Interstate 390

• Interstate 99 may also be extended in the future further south along US 220 to Cumberland, Maryland and Interstate 68.

• The end of I-99 at I-70/I-76 involves a pair of complex intersections and a quarter-mile (400 m) drive on Business Route US 220. This unusual configuration is common at interchanges between the Pennsylvania Turnpike and other freeways, designed to support local businesses.

• During the early years of its existence, traffic on I-99 was very sparse. In addition, there was almost no I-99 signage, with most road signs reading "US 220" instead. However, signage has recently increased and I-99 proponents claim usage will increase as the highway is extended.

• Congressman Bud Shuster wrote the number of I-99 into law with the National Highway Designation Act of 1995, shunning arguments that a three digit number such as I-980 would be more appropriate and would avoid insequential numbering. Several other Interstates, including future Interstate 66 in Kentucky and Interstate 86 in New York, have since had their designations written into law.

• Located east of Interstate 79 and west of Interstate 81, Interstate 99 is the bane of many road enthusiasts who treasure an orderly and sequential numbering system for Interstate highways. According to numbering guidelines, the lowest odd numbers are on the West Coast and the highest numbers are on the East Coast. Several north-south routes, including Interstates 81, 83, 87, 89, 91, 93, 95, and 97, all lie east of Interstate 99.

• For another example of an Interstate route with a non-standard designation, see Interstate 238.

External links

• I-99 / S.R. 6220 Relocation Project
• Future Interstate 99 - North of I-80

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