Interstate 99 is an
intrastate Interstate Highway located in central
PennsylvaniaThe Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
in the United States. The southern terminus of the route is at exit 146 of the
Pennsylvania TurnpikeThe Pennsylvania Turnpike is a toll highway system operated by the Pennsylvania Turnpike Commission in the Commonwealth of Pennsylvania, United States. The three sections of the turnpike system total . The main section extends from Ohio to New Jersey and is long...
(
I-70Interstate 70 is an Interstate Highway in the United States that runs from Interstate 15 near Cove Fort, Utah, to a Park and Ride near Baltimore, Maryland. It was the first Interstate Highway project in the United States. I-70 approximately traces the path of U.S. Route 40 east of the Rocky...
and
I-76Interstate 76 is an Interstate Highway in the United States, running 435 miles from an interchange with Interstate 71 west of Akron, Ohio, east to Interstate 295 near Camden, New Jersey....
) north of
BedfordBedford is a borough in Bedford County, Pennsylvania, west of the State Capital, Harrisburg. It is the county seat of Bedford County. Bedford was established in the mid-18th century. Population counts follow: 1890, 2,242; 1900, 2,167; 1910, 2,385. The population was 3,141 at the 2000...
, where the road continues south as U.S. Route 220 (US 220). The northern terminus is at I-80 near
BellefonteBellefonte is a borough in Centre County, Pennsylvania, United States. It lies about twelve miles northeast of State College and is part of the State College, Pennsylvania Metropolitan Statistical Area...
. I-99 passes through
Altoona-History:A major railroad town, Altoona was founded by the Pennsylvania Railroad in 1849 as the site for a shop complex. Altoona was incorporated as a borough on February 6, 1854, and as a city under legislation approved on April 3, 1867, and February 8, 1868...
and
State CollegeState College is the largest borough in Centre County in the U.S. state of Pennsylvania. It is the principal city of the State College, Pennsylvania Metropolitan Statistical Area which encompasses all of Centre County. As of the 2010 census, the borough population was 42,034, and roughly double...
–the latter home to
Pennsylvania State UniversityThe Pennsylvania State University, commonly referred to as Penn State or PSU, is a public research university with campuses and facilities throughout the state of Pennsylvania, United States. Founded in 1855, the university has a threefold mission of teaching, research, and public service...
–and is entirely
concurrentA concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...
to US 220. Long-term plans call for I-99 to be extended southward along the US 220 corridor to an interchange with
I-68Interstate 68 is a Interstate highway in the U.S. states of West Virginia and Maryland, connecting in Morgantown to in Hancock. is also Corridor E of the Appalachian Development Highway System. From 1965 until the freeway's construction was completed in 1991, it was designated as...
in
Cumberland, MarylandCumberland is a city in the far western, Appalachian portion of Maryland, United States. It is the county seat of Allegany County, and the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2010 census, the city had a population of 20,859, and the metropolitan area had a...
, and northward along the US 220 and
US 15U.S. Route 15 is a -long United States highway, designated along South Carolina, North Carolina, Virginia, Maryland, Pennsylvania, and New York. The route is signed north–south, from U.S. Route 17 Alternate in Walterboro, South Carolina to Interstate 86 and NY 17 in Painted Post, New York.US...
corridors to an interchange with
I-86Interstate 86 is an Interstate Highway that extends for through northwestern Pennsylvania and southern New York in the United States...
west of
Corning, New YorkCorning is a city in Steuben County, New York, United States, on the Chemung River. The population was 10,842 at the 2000 census. It is named for Erastus Corning, an Albany financier and railroad executive who was an investor in the company that developed the community.- Overview :The city of...
.
Unlike most Interstate Highway numbers, which were assigned by the
American Association of State Highway and Transportation OfficialsAASHTO, the American Association of State Highway and Transportation Officials, is a standards setting body which publishes specifications, test protocols and guidelines which are used in highway design and construction throughout the United States...
(AASHTO) to fit into a grid, I-99's number was written into Section 332 of the National Highway Designation Act of 1995 by
Bud ShusterElmer Greinert "Bud" Shuster is an American politician who represented Pennsylvania in the United States House of Representatives as a Republican from 1973 to 2001. He is best known for his advocacy of transportation projects that critics deride as "pork barrel" spending.-Career:Shuster was born...
, then-chair of the U.S. House Committee on Transportation and Infrastructure, the bill's sponsor, and the representative of the district through which the highway runs. I-99 violates the AASHTO numbering convention associated with Interstate Highways, since it lies east of
I-79Interstate 79 is an Interstate Highway in the eastern United States, designated from Interstate 77 in Charleston, West Virginia to Pennsylvania Route 5 and Pennsylvania Route 290 in Erie, Pennsylvania...
but west of
I-81Interstate 81 is an Interstate Highway in the eastern part of the United States. Its southern terminus is at Interstate 40 in Dandridge, Tennessee; its northern terminus is on Wellesley Island at the Canadian border, where the Thousand Islands Bridge connects it to Highway 401, the main freeway...
.
Route description
I-99 begins at an indirect interchange with US 220 and the
Pennsylvania TurnpikeThe Pennsylvania Turnpike is a toll highway system operated by the Pennsylvania Turnpike Commission in the Commonwealth of Pennsylvania, United States. The three sections of the turnpike system total . The main section extends from Ohio to New Jersey and is long...
(designated as I-70 and
I-76Interstate 76 is an Interstate Highway in the United States, running 435 miles from an interchange with Interstate 71 west of Akron, Ohio, east to Interstate 295 near Camden, New Jersey....
) north of
BedfordBedford is a borough in Bedford County, Pennsylvania, west of the State Capital, Harrisburg. It is the county seat of Bedford County. Bedford was established in the mid-18th century. Population counts follow: 1890, 2,242; 1900, 2,167; 1910, 2,385. The population was 3,141 at the 2000...
. It begins concurrent with US 220, which continues south from the interchange toward the
MarylandMaryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...
state line as a two-lane highway known as the Appalachian Thruway. The interchange with the Turnpike requires drivers to use a short segment of US 220 Business to access the Turnpike at exit 146. North of the Turnpike junction, the limited-access highway becomes the Bud Shuster Highway as it heads through a rural portion of
Bedford CountyBedford County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 49,762. The county seat is Bedford. It is part of the Altoona, Pennsylvania, Metropolitan Statistical Area.- History :...
. It connects to Pennsylvania Route 56 (PA 56) just west of the
Bedford County AirportBedford County Airport is a public use airport in Bedford County, Pennsylvania, United States. It is owned by the Bedford County Airport Authority and is located four nautical miles north of the central business district of the borough of Bedford, Pennsylvania. It opened in 1994.Although most U.S...
at exit 3 and
PA 869Pennsylvania Route 869 is an east–west state route located in Western Pennsylvania. Its western terminus is at Ragers Hill Road just west of US 219 in St...
at exit 7 before crossing into
Blair County-Significant Topographic Features:*Brush Mountain*Logan Valley*Morrison Cove*Tussey Mountain-Demographics:As of the census of 2000, there were 129,144 people, 51,518 households, and 34,877 families residing in the county. The population density was 246 people per square mile . There were 55,061...
. Here, it meets
PA 164Pennsylvania Route 164 is an long state highway located in Cambria, Blair, Bedford counties in Pennsylvania. The western terminus is at an interchange with US 22 in Munster Township...
north of East Freedom at exit 23 prior to entering the
Altoona-History:A major railroad town, Altoona was founded by the Pennsylvania Railroad in 1849 as the site for a shop complex. Altoona was incorporated as a borough on February 6, 1854, and as a city under legislation approved on April 3, 1867, and February 8, 1868...
area.
In
HollidaysburgHollidaysburg is a borough in Blair County, Pennsylvania, on the Juniata River, south of Altoona. It is the county seat of Blair County. It is part of the Altoona, Pennsylvania, Metropolitan Statistical Area and is one of the communities that comprises the Altoona Urban Area...
, a borough south of the city, I-99 and US 220 connect to US 22 at exit 28, a large modified trumpet interchange. This junction allows travelers to head west towards
EbensburgEbensburg is a borough located in, and is the seat of, Cambria County, Pennsylvania, west of Altoona and surrounded by Cambria Township. It is situated in the Alleghenies about 2025 feet above sea level. Ebensburg is located in a rich bituminous coal region. In the past, saw mills, tanneries,...
,
JohnstownJohnstown is a city in Cambria County, Pennsylvania, United States, west-southwest of Altoona, Pennsylvania and east of Pittsburgh. The population was 20,978 at the 2010 census. It is the principal city of the Johnstown, Pennsylvania, Metropolitan Statistical Area, which includes Cambria County...
, and
PittsburghPittsburgh is the second-largest city in the US Commonwealth of Pennsylvania and the county seat of Allegheny County. Regionally, it anchors the largest urban area of Appalachia and the Ohio River Valley, and nationally, it is the 22nd-largest urban area in the United States...
. The freeway continues to Altoona itself, where it indirectly connects to
PA 36Pennsylvania Route 36 is a long state highway located in the U.S. state of Pennsylvania. The southern terminus is at Pennsylvania Route 26 near the Hopewell Township community of Yellow Creek...
via exit 32. Unlike the original routing of US 220 which goes through the city center, I-99 and US 220 mostly bypass it to the east, connecting to the city via streets leading eastward from the downtown district. At the northern edge of Altoona,
PA 764Pennsylvania Route 764 is a north–south state highway in Blair County, of the U.S. state of Pennsylvania. The route is one of many major north–south throughfares in Altoona. South of the city near Duncansville, a suburb and unofficial section of Altoona, it terminates at an interchange...
joins the old alignment of US 220 and parallels I-99 north for 3 miles (5 km) toward
BellwoodBellwood is a borough in Blair County, Pennsylvania, United States. It is part of the Altoona, PA Metropolitan Statistical Area. The population was 2,016 at the 2000 census.-Geography:Bellwood is located at ....
. PA 764 leaves old US 220 about 2 miles (3.2 km) south of Bellwood, however, and terminates at I-99 exit 39. Bellwood itself is served by exit 41, which leads to
PA 865Pennsylvania Route 865 is an long state highway located in Blair, Cambria, and Clearfield counties in Pennsylvania. The southern terminus is at I 99/US 220 in Bellwood. The northern terminus is at PA 53 in Coalport.-Blair County:...
.
The highway veers northeastward from Bellwood to serve the borough of
TyroneTyrone is a borough in Blair County, Pennsylvania, northeast of Altoona, on the Little Juniata River. Tyrone was of considerable commercial importance in the twentieth century. It was an outlet for the Clearfield coal fields, and it was noted for the manufacture of paper products. There were...
, located at the junction of old US 220 and
PA 453Pennsylvania Route 453 is a long state highway located in Huntingdon, Blair, and Clearfield counties in Pennsylvania. The southern terminus is at US 22 in Water Street; the northern terminus is at PA 879 in Curwensville....
. Access to the borough is made by way of exit 48, which serves PA 453. Past Tyrone, I-99 and US 220 head through sparsely populated areas of Blair and
CentreCentre County is a county located in the U.S. state of Pennsylvania. It is part of the State College, Pennsylvania Metropolitan Statistical Area. As of 2010, the population was 153,990....
Counties. For this reason, only three exits exist between Tyrone and
State CollegeState College is the largest borough in Centre County in the U.S. state of Pennsylvania. It is the principal city of the State College, Pennsylvania Metropolitan Statistical Area which encompasses all of Centre County. As of the 2010 census, the borough population was 42,034, and roughly double...
: exit 52, serving
PA 350Pennsylvania Route 350 is an long state highway located in Huntingdon, Blair, and Centre counties in Pennsylvania. The southern terminus is at PA 45 in Franklin Township...
and the small community of
Bald EagleBald Eagle is an unincorporated populated place in Blair County, Pennsylvania, United States. It is located in the Bald Eagle Valley at the foot of the Bald Eagle Mountain ridge, along the Fill Run near its confluence with the headwaters of the Bald Eagle Creek tributary of the Little Juniata River...
, and exits 61 and 62, which connect to US 322 and the borough of
Port MatildaPort Matilda is a borough in Centre County, Pennsylvania, United States. It is part of the State College, Pennsylvania Metropolitan Statistical Area...
. Here, US 322 joins I-99 and US 220 and follows them eastward to the State College area.
At exit 68 (
US 322 BusinessU.S. Route 322 Business is a business loop of U.S. 322 in Centre County, Pennsylvania. Its western terminus is at an interchange with I-99, U.S. 322, and U.S. 220 near State College; its eastern terminus is at U.S. 322 near Boalsburg....
), I-99 merges into the Mount Nittany Expressway, an older, northerly bypass of State College. I-99, US 220, and US 322 follow the expressway to the Mount Nittany Interchange, a directional T interchange located on the northern fringe of the
Pennsylvania State UniversityThe Pennsylvania State University, commonly referred to as Penn State or PSU, is a public research university with campuses and facilities throughout the state of Pennsylvania, United States. Founded in 1855, the university has a threefold mission of teaching, research, and public service...
campus. US 322 continues east through the interchange to follow the Mount Nittany Expressway while I-99 and US 220 split from US 322 and head northeastward toward
Pleasant GapPleasant Gap is a census-designated place in Centre County, Pennsylvania, United States. It is part of the State College, Pennsylvania Metropolitan Statistical Area...
, which I-99 connects to via exit 81 and
PA 26Pennsylvania Route 26 is a highway in the south-central area of Pennsylvania. Its northern terminus is at Pennsylvania Route 150 northwest of Howard, Pennsylvania; its southern terminus is at the Maryland state line near Barnes Gap in Union Township...
. At this point, PA 26 joins the freeway and follows it to
BellefonteBellefonte is a borough in Centre County, Pennsylvania, United States. It lies about twelve miles northeast of State College and is part of the State College, Pennsylvania Metropolitan Statistical Area...
, served by exit 83 and
PA 550Pennsylvania Route 550 is a 36 mile long state highway in Pennsylvania. The southern terminus of the route is at Pennsylvania Route 45 Truck and Pennsylvania Route 453 east of Tyrone...
. I-99 ends about 2.5 miles (4 km) later at an interchange with I-80, where PA 26 continues north and US 220 joins I-80 east.
Origins
Corridor O of the
Appalachian Development Highway SystemThe Appalachian Development Highway System is part of the Appalachian Regional Commission in the United States. See: .-History:...
was assigned in 1925, running from
Cumberland, MarylandCumberland is a city in the far western, Appalachian portion of Maryland, United States. It is the county seat of Allegany County, and the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2010 census, the city had a population of 20,859, and the metropolitan area had a...
(Corridor E, now
I-68Interstate 68 is a Interstate highway in the U.S. states of West Virginia and Maryland, connecting in Morgantown to in Hancock. is also Corridor E of the Appalachian Development Highway System. From 1965 until the freeway's construction was completed in 1991, it was designated as...
) to Bellefonte (I-80) along
US 220U.S. Route 220 is a long U.S. Route in the eastern United States.US 220 is a spur route of U.S. Route 20 but at present, the two routes do not intersect nor do they connect via other spurs of US 20. The former U. S. Route 120, which was signed in Pennsylvania between 1926 and 1967, intersected...
. The portion in
PennsylvaniaThe Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
, from
BedfordBedford is a borough in Bedford County, Pennsylvania, west of the State Capital, Harrisburg. It is the county seat of Bedford County. Bedford was established in the mid-18th century. Population counts follow: 1890, 2,242; 1900, 2,167; 1910, 2,385. The population was 3,141 at the 2000...
north to
Bald EagleBald Eagle is an unincorporated populated place in Blair County, Pennsylvania, United States. It is located in the Bald Eagle Valley at the foot of the Bald Eagle Mountain ridge, along the Fill Run near its confluence with the headwaters of the Bald Eagle Creek tributary of the Little Juniata River...
, was upgraded to a freeway in stages from the 1960s to the 1990s. The first section, from US 30 in Bedford to
PA 56Pennsylvania Route 56 is a major long state highway located in central Pennsylvania. Its western terminus is at the eastern approach to the C.L. Schmitt Bridge in New Kensington. Its eastern terminus is U.S. Route 30 west of Bedford.- Route description :...
near Cessna, opened in the latter half of the 1960s. Two more sections—from PA 56 north to modern exit 15 in
Blair County-Significant Topographic Features:*Brush Mountain*Logan Valley*Morrison Cove*Tussey Mountain-Demographics:As of the census of 2000, there were 129,144 people, 51,518 households, and 34,877 families residing in the county. The population density was 246 people per square mile . There were 55,061...
and from Charlottsville (exit 45) to Bald Eagle—were completed in the 1970s. The portion between exit 15 and
Altoona-History:A major railroad town, Altoona was founded by the Pennsylvania Railroad in 1849 as the site for a shop complex. Altoona was incorporated as a borough on February 6, 1854, and as a city under legislation approved on April 3, 1867, and February 8, 1868...
(exit 33) was finished in the 1980s while the segment between modern exits 33 and 45 was opened by 1997.
In 1991, the
Intermodal Surface Transportation Efficiency ActThe Intermodal Surface Transportation Efficiency Act of 1991 is a United States federal law that posed a major change to transportation planning and policy, as the first U.S. federal legislation on the subject in the post-Interstate Highway System era...
(ISTEA) was signed into law. It included a number of High Priority Corridors, one of which—Corridor 9—ran along US 220 from Bedford to
WilliamsportWilliamsport is a city in and the county seat of Lycoming County, Pennsylvania in the United States. In 2009, the population was estimated at 29,304...
, and then north on
US 15U.S. Route 15 is a -long United States highway, designated along South Carolina, North Carolina, Virginia, Maryland, Pennsylvania, and New York. The route is signed north–south, from U.S. Route 17 Alternate in Walterboro, South Carolina to Interstate 86 and NY 17 in Painted Post, New York.US...
to
Corning, New YorkCorning is a city in Steuben County, New York, United States, on the Chemung River. The population was 10,842 at the 2000 census. It is named for Erastus Corning, an Albany financier and railroad executive who was an investor in the company that developed the community.- Overview :The city of...
. The National Highway Designation Act of 1995 amended ISTEA; among these amendments were that "the portion of the route referred to in subsection (c)(9) [Corridor 9] is designated as Interstate Route I-99." This was the first Interstate Highway number to be written into law rather than to be assigned by
AASHTOAASHTO, the American Association of State Highway and Transportation Officials, is a standards setting body which publishes specifications, test protocols and guidelines which are used in highway design and construction throughout the United States...
. The number was specificated by Representative
Bud ShusterElmer Greinert "Bud" Shuster is an American politician who represented Pennsylvania in the United States House of Representatives as a Republican from 1973 to 2001. He is best known for his advocacy of transportation projects that critics deride as "pork barrel" spending.-Career:Shuster was born...
, who said that the standard spur numbering was not "catchy"; instead, I-99 was named after a street car, No. 99, that took people from Shuster's hometown of
GlassportGlassport is a borough in Allegheny County, Pennsylvania, United States, approximately south of Pittsburgh and the confluence of the Monongahela and Allegheny rivers where they form the Ohio River...
to
McKeesportMcKeesport is a city in Allegheny County, Pennsylvania, in the United States; it is located at the confluence of the Monongahela and Youghiogheny rivers and is part of the Pittsburgh Metro Area. The population was 19,731 at the 2010 census...
. I-99 violates the AASHTO numbering convention associated with Interstate Highways, since it lies east of
I-79Interstate 79 is an Interstate Highway in the eastern United States, designated from Interstate 77 in Charleston, West Virginia to Pennsylvania Route 5 and Pennsylvania Route 290 in Erie, Pennsylvania...
but west of
I-81Interstate 81 is an Interstate Highway in the eastern part of the United States. Its southern terminus is at Interstate 40 in Dandridge, Tennessee; its northern terminus is on Wellesley Island at the Canadian border, where the Thousand Islands Bridge connects it to Highway 401, the main freeway...
.
Designation and Bald Eagle Ridge
On November 6, 1998, AASHTO formally approved the I-99 designation, which initially extended 51.2 miles (82.4 km) from the
Pennsylvania TurnpikeThe Pennsylvania Turnpike is a toll highway system operated by the Pennsylvania Turnpike Commission in the Commonwealth of Pennsylvania, United States. The three sections of the turnpike system total . The main section extends from Ohio to New Jersey and is long...
in Bedford to
PA 350Pennsylvania Route 350 is an long state highway located in Huntingdon, Blair, and Centre counties in Pennsylvania. The southern terminus is at PA 45 in Franklin Township...
in Bald Eagle. In 2002, plans were set in motion to extend I-99 northeast from Bald Eagle to
State CollegeState College is the largest borough in Centre County in the U.S. state of Pennsylvania. It is the principal city of the State College, Pennsylvania Metropolitan Statistical Area which encompasses all of Centre County. As of the 2010 census, the borough population was 42,034, and roughly double...
via
Port MatildaPort Matilda is a borough in Centre County, Pennsylvania, United States. It is part of the State College, Pennsylvania Metropolitan Statistical Area...
. The extension was fraught with issues, however. The proposed alignment for the highway north to Port Matilda proved to be controversial: while environmentalists called for I-99 to be constructed in the valley below Bald Eagle Ridge, the
Pennsylvania Department of TransportationThe Pennsylvania Department of Transportation oversees transportation issues in the Commonwealth of Pennsylvania. The administrator of PennDOT is the Pennsylvania Secretary of Transportation, currently Barry Schoch Presently, PennDOT supports over of state roads and highways, about 25,000...
(PennDOT) and valley residents favored a routing that took the freeway above the valley and along the side of the ridge. Farther north, the widening of Skytop, the mountain cut that US 322 uses to traverse Bald Eagle Ridge, resulted in the exposure of acidic
pyriteThe mineral pyrite, or iron pyrite, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale-to-normal, brass-yellow hue have earned it the nickname fool's gold because of its resemblance to gold...
rock in 2003.
Work on the segment ceased one year later as PennDOT attempted to stop the flow of acidic runoff from the site. The state remedied the situation by removing 1000000 cubic yards (764,554.9 m³) of pyrite and replacing it with a mix of
limestoneLimestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
and fill, a process that took two years and cost $83 million. With the environmental issues settled, construction resumed on the portion of the freeway south of Skytop Mountain. The section from Bald Eagle to Port Matilda was opened to traffic on December 17, 2007, while the remaining section between Port Matilda and the west end of the Mount Nittany Expressway near State College was completely opened on November 17, 2008. In all, the Bald Eagle – State College section of I-99 cost $631 million to construct.
I-99 was extended northeastward to meet I-80 northeast of
BellefonteBellefonte is a borough in Centre County, Pennsylvania, United States. It lies about twelve miles northeast of State College and is part of the State College, Pennsylvania Metropolitan Statistical Area...
following the completion of the Bald Eagle – State College segment. The connection was made by way of the pre-existing Mount Nittany Expressway and another, unnamed limited-access highway connecting the State College bypass to the Bellefonte area. The portion of the latter highway north of the
PA 26Pennsylvania Route 26 is a highway in the south-central area of Pennsylvania. Its northern terminus is at Pennsylvania Route 150 northwest of Howard, Pennsylvania; its southern terminus is at the Maryland state line near Barnes Gap in Union Township...
interchange was originally built in the 1970s as a
two-lane freewayA two-lane expressway is an expressway with only one lane in each direction, and usually no median barrier. It may be built that way because of constraints, or may be intended for expansion once traffic volumes rise. The term super two is often used by roadgeeks for this type of road, but traffic...
connecting
Pleasant GapPleasant Gap is a census-designated place in Centre County, Pennsylvania, United States. It is part of the State College, Pennsylvania Metropolitan Statistical Area...
to I-80. At the time, it was designated solely as PA 26. It was widened to four lanes in 1997. The piece connecting the PA 26 freeway to the Mount Nittany Expressway was completed in 2002. US 220 was rerouted via US 322 and the new road, and the old alignment of US 220 north of US 322 was designated US 220 Alternate on May 30, 2003.
Future
Long-term plans for I-99 call for the freeway to be extended northeastward along US 220 from
BellefonteBellefonte is a borough in Centre County, Pennsylvania, United States. It lies about twelve miles northeast of State College and is part of the State College, Pennsylvania Metropolitan Statistical Area...
to
WilliamsportWilliamsport is a city in and the county seat of Lycoming County, Pennsylvania in the United States. In 2009, the population was estimated at 29,304...
and northward along
US 15U.S. Route 15 is a -long United States highway, designated along South Carolina, North Carolina, Virginia, Maryland, Pennsylvania, and New York. The route is signed north–south, from U.S. Route 17 Alternate in Walterboro, South Carolina to Interstate 86 and NY 17 in Painted Post, New York.US...
from Williamsport to
I-86Interstate 86 is an Interstate Highway that extends for through northwestern Pennsylvania and southern New York in the United States...
in
Corning, New YorkCorning is a city in Steuben County, New York, United States, on the Chemung River. The population was 10,842 at the 2000 census. It is named for Erastus Corning, an Albany financier and railroad executive who was an investor in the company that developed the community.- Overview :The city of...
. Signs have been placed along the present US 220 and US 15 between Bellefonte and Corning—much of which are built to
Interstate Highway standardsStandards for Interstate Highways in the United States are defined by the American Association of State Highway and Transportation Officials in the publication A Policy on Design Standards - Interstate System...
—marking the route as the "Future I-99 Corridor". The entirety of US 15 north of Williamsport is a limited-access highway save for a 4.5 miles (7.2 km) segment in
New YorkNew York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...
between
LindleyLindley is a town in southern Steuben County, New York, United States. The population was 1,913 at the 2000 census. The town was named after the early settler Eleazer Lindsley.The town is situated south of the city of Corning.-Geography:...
and Presho. Construction on the missing piece is underway and is expected to be completed in 2012.
Exit list
External links