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Interstate 99 facts for kids

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Interstate 99 marker

Interstate 99
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Map of southwestern Pennsylvania and vicinity with I-99 highlighted in red
Route information
Maintained by PennDOT
Length 85.6 mi (137.8 km)
Existed November 6, 1998–present
Major junctions
South end I-70 / I-76 / US 220 / Penna Turnpike near Bedford
  PA 56 near Cessna
US 22 near Altoona
US 322 near State College
PA 26 near Pleasant Gap
North end I-80 / US 220 near Bellefonte
Highway system
Main route of the Interstate Highway System
Main • Auxiliary • Business

Roads in Pennsylvania
Interstate • US • State • Legislative

← PA 98 PA 99 →

Interstate 99 is an important highway in the state of Pennsylvania, United States. It is part of the Interstate Highway System, a big network of roads that connect different states. This highway helps people travel from Bedford in the south, all the way north to Bellefonte. The entire route is about 85 miles (137 kilometers) long.


What is Interstate 99?

Interstate 99, often called I-99, is a modern highway designed for fast and safe travel. It was officially established on November 6, 1998. Highways like I-99 are built to high standards. They usually have multiple lanes and no traffic lights. This allows vehicles to move smoothly and quickly.

Where Does I-99 Go?

I-99 starts near Bedford in southern Pennsylvania. Here, it connects with other major roads like Interstate 70 and Interstate 76. As it heads north, it passes through several important towns and areas.

Important Towns Along the Way

  • Altoona: I-99 goes near Altoona, a city known for its railroad history.
  • State College: The highway also passes close to State College. This town is home to Pennsylvania State University, a very large university.
  • Bellefonte: I-99 ends near Bellefonte in central Pennsylvania. Here, it connects with Interstate 80, another major cross-country highway.

Traveling on I-99

Driving on Interstate 99 offers scenic views, especially during autumn when the leaves change colors. The highway helps connect communities and makes it easier for people to visit different parts of Pennsylvania. It's a key route for both local drivers and those traveling longer distances.

Images for kids

  • I-99 N foliage

    I-99 north near Bald Eagle, Pennsylvania in October 2011

  • 2015-12-14 12 41 37 View north along Interstate 99 and U.S. Route 220 at Exit 73 (East U.S. Route 322, Penn State University, State College) in College Township, Pennsylvania

    I-99/US 220 northbound at split with US 322 eastbound in College Township, near State College

  • US 15 south at Presho NY exit

    Looking southward along US 15 (now I-99) from the Smith Road overpass in Presho prior to the road's completion. The highway previously narrowed from four to two lanes in the background

  • Interstate 99 entering New York

    I-99/US 15 entering New York

  • I99SkyTop

    2002 photo of the I-99 excavation, looking south from Julian at the area where acidic rock was exposed on Bald Eagle Mountain

  • 2021-10-27 13 22 04 View north along Interstate 99 and U.S. Route 220 just north of Exit 41 in Antis Township, Blair County, Pennsylvania

    I-99 and US 220 northbound past PA 865 near Bellwood

  • Route 322 WB 2

    2006 photo of the westbound approach to the Mount Nittany Interchange. The blank spots on the overhead signs were reserved for I-99 shields.

  • Future I-99 Corridor

    "Future I-99 Corridor" sign on US 15 southbound north of Williamsport

See also

Kids robot.svg In Spanish: Interestatal 99 para niños

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Interstate 99 Facts for Kids. Kiddle Encyclopedia.