Interstate 393
Encyclopedia
Interstate 393 is a 4 miles (6.4 km) spur extending east from Interstate 93
at Concord
, New Hampshire
, USA
. The primary purpose of the road is to bypass a densely-built commercial strip on Route 9 in the eastern part of Concord. Several times a year, I-393 also serves traffic to events at New Hampshire Motor Speedway in Loudon
. The entire length of I-393 overlaps US 4
and US 202
.
's exit 15 interchange, where US 4
East leaves its concurrency
with I-93 South and the I-393/US 4/US 202
concurrency begins. The four-lane freeway actually begins a short distance west of I-93 at the north end of Concord
's Main Street where US 202 turns east from US 3
. From there the road then intersects Commercial Street just before the exit 15 interchange. Just east of the exit 15 cloverleaf
is I-393's exit 1 to Fort Eddy Road. This exit provides access to the New Hampshire Technical Institute
, which is home to the McAuliffe-Shepard Discovery Center, an air and space science center. I-393 crosses the Merrimack River
and continues east to exit 2, connecting to New Hampshire's State Office Park East and the area known locally as the Concord Heights via East Side Drive (NH 132
). Further east is exit 3, I-393's last, to New Hampshire Route 106
, which runs south past the commercial area around the Steeplegate Mall, and north to New Hampshire Motor Speedway and the Laconia
region. After exit 3, the road turns northward, crossing the Soucook River
. Beyond the bridge, I-393 ends and US 4 and US 202 merge down to a single lane before joining NH 9 and continuing eastward.
Interstate 93
Interstate 93 is an Interstate Highway in the New England section of the United States. Its southern terminus is in Canton, Massachusetts, in the Boston metropolitan area, at Interstate 95; its northern terminus is near St. Johnsbury, Vermont, at Interstate 91...
at Concord
Concord, New Hampshire
The city of Concord is the capital of the state of New Hampshire in the United States. It is also the county seat of Merrimack County. As of the 2010 census, its population was 42,695....
, New Hampshire
New Hampshire
New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...
, USA
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. The primary purpose of the road is to bypass a densely-built commercial strip on Route 9 in the eastern part of Concord. Several times a year, I-393 also serves traffic to events at New Hampshire Motor Speedway in Loudon
Loudon, New Hampshire
Loudon is a town in Merrimack County, New Hampshire, United States. The population was 5,317 at the 2010 census. Loudon is the home of New Hampshire Motor Speedway....
. The entire length of I-393 overlaps US 4
U.S. Route 4
U.S. Route 4 is a long United States highway that runs from East Greenbush, New York, in the west to Portsmouth, New Hampshire, in the east, traversing through Vermont.In New York, US 4 is signed north–south to reflect its alignment in the state...
and US 202
U.S. Route 202
U.S. Route 202 is a highway stretching from Delaware to Maine, also passing through the states of Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, and New Hampshire....
.
Route description
Interstate 393 begins at I-93Interstate 93
Interstate 93 is an Interstate Highway in the New England section of the United States. Its southern terminus is in Canton, Massachusetts, in the Boston metropolitan area, at Interstate 95; its northern terminus is near St. Johnsbury, Vermont, at Interstate 91...
's exit 15 interchange, where US 4
U.S. Route 4
U.S. Route 4 is a long United States highway that runs from East Greenbush, New York, in the west to Portsmouth, New Hampshire, in the east, traversing through Vermont.In New York, US 4 is signed north–south to reflect its alignment in the state...
East leaves its concurrency
Concurrency (road)
A 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...
with I-93 South and the I-393/US 4/US 202
U.S. Route 202
U.S. Route 202 is a highway stretching from Delaware to Maine, also passing through the states of Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, and New Hampshire....
concurrency begins. The four-lane freeway actually begins a short distance west of I-93 at the north end of Concord
Concord, New Hampshire
The city of Concord is the capital of the state of New Hampshire in the United States. It is also the county seat of Merrimack County. As of the 2010 census, its population was 42,695....
's Main Street where US 202 turns east from US 3
U.S. Route 3
U.S. Route 3 is a north–south United States highway that runs from its southern terminus in Cambridge, Massachusetts through New Hampshire to its terminus near Third Connecticut Lake at the Canadian border, where the road continues north as Quebec Route 257.In New Hampshire parts of US 3 are...
. From there the road then intersects Commercial Street just before the exit 15 interchange. Just east of the exit 15 cloverleaf
Cloverleaf interchange
A cloverleaf interchange is a two-level interchange in which left turns, reverse direction in left-driving regions, are handled by ramp roads...
is I-393's exit 1 to Fort Eddy Road. This exit provides access to the New Hampshire Technical Institute
New Hampshire Technical Institute
NHTI, Concord's Community College is a two-year residential community college located in Concord, New Hampshire. The college is part of the Community College System of New Hampshire and is accredited by the New England Association of Schools and Colleges...
, which is home to the McAuliffe-Shepard Discovery Center, an air and space science center. I-393 crosses the Merrimack River
Merrimack River
The Merrimack River is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into Massachusetts, and then flows northeast until it empties into the Atlantic Ocean at Newburyport...
and continues east to exit 2, connecting to New Hampshire's State Office Park East and the area known locally as the Concord Heights via East Side Drive (NH 132
New Hampshire Route 132
New Hampshire Route 132 is a long north–south highway in Belknap and Merrimack counties in central New Hampshire. NH 132 runs from Concord north to Ashland in the Lakes Region....
). Further east is exit 3, I-393's last, to New Hampshire Route 106
New Hampshire Route 106
New Hampshire Route 106 is a long secondary north–south highway in Merrimack and Belknap counties in central New Hampshire...
, which runs south past the commercial area around the Steeplegate Mall, and north to New Hampshire Motor Speedway and the Laconia
Laconia, New Hampshire
As of the census of 2000, there were 16,411 people, 6,724 households, and 4,168 families residing in the city. The population density was 809.3 people per square mile . There were 8,554 housing units at an average density of 421.8 per square mile...
region. After exit 3, the road turns northward, crossing the Soucook River
Soucook River
The Soucook River is a river located in central New Hampshire in the United States. It is a tributary of the Merrimack River, which flows to the Gulf of Maine....
. Beyond the bridge, I-393 ends and US 4 and US 202 merge down to a single lane before joining NH 9 and continuing eastward.
History
- When I-393 was first completed circa 1979, it ended at an at-grade intersection with NH 9 and NH 106New Hampshire Route 106New Hampshire Route 106 is a long secondary north–south highway in Merrimack and Belknap counties in central New Hampshire...
just west of where exit 3 now stands. Exit 3 and the extension beyond were completed in the late 1980s. - The intersection of Commercial Street and US 202U.S. Route 202U.S. Route 202 is a highway stretching from Delaware to Maine, also passing through the states of Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, and New Hampshire....
used to be a four-way crossing, but in recent years Jersey barrierJersey barrierA Jersey barrier or Jersey wall is a modular concrete barrier employed to separate lanes of traffic. It is designed to both minimize vehicle damage in cases of incidental contact while still preventing crossover in the case of head-on accidents....
s have been installed and a short bypass under US 202 has been constructed to prevent traffic from crossing the freeway, although the traffic lights remain.
Exit list
| Mile | Exit | Destination | Notes |
|---|---|---|---|
| 0.0 | US 202 joins eastbound and leaves westbound Freeway starts 0.2 mile (0.321868 km) earlier as US 202 |
||
| 0.0 | South To — Manchester Manchester, New Hampshire Manchester is the largest city in the U.S. state of New Hampshire, the tenth largest city in New England, and the largest city in northern New England, an area comprising the states of Maine, New Hampshire, and Vermont. It is in Hillsborough County along the banks of the Merrimack River, which... , Lebanon Lebanon, New Hampshire As of the census of 2000, there were 12,568 people, 5,500 households, and 3,178 families residing in the city. The population density was 311.4 people per square mile . There were 5,707 housing units at an average density of 141.4 per square mile... |
||
| 0.0 | US 4 joins eastbound and leaves westbound | ||
| 0.5 | 1 | Ft. Eddy Rd — NH Tech Institute New Hampshire Technical Institute NHTI, Concord's Community College is a two-year residential community college located in Concord, New Hampshire. The college is part of the Community College System of New Hampshire and is accredited by the New England Association of Schools and Colleges... |
|
| 1.4 | 2 | ||
| 3.5 | 3 | ||
| 4.5 (EB) 4.7 (WB) |