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Interstate 595 Maryland

Routing

Interstate 595 in Maryland is the longest unsigned Interstate highway in the country. The Interstate portion of the freeway follows the U.S. 50-301 freeway between the Interstate 95/495 (Capital Beltway) and Maryland 70 in Annapolis. Interstate 595 does not approach or cross the Severn River or Chesapeake Bay Bridges.

Originally, Interstate 595 was four lanes in length, but major reconstruction in the early 1990s (finished by 1995) saw expansion to six to eight lanes. The highway was to have been signed Interstate 595 upon upgrading, but it was felt that travelers were familiar with the U.S. 50 and 301 designations, and that Interstate 595 was unnecessary. So the designation is kept secret, only visible in paperwork. Interesting enough some signage along the highway still has space allocations for the planned Interstate 595 shields. These spaces are visible where U.S. 50 shields have space allocated to the left on signs.

Highway Guides

History

Originally, the Interstate 68 designation was planned for the U.S. 50-301 freeway between Washington, D.C., and Annapolis, Maryland. However, AASHTO approved the numbering of Interstate 68 along the U.S. 48 corridor in West Virginia and Maryland on June 7, 1989. At the same time, U.S. 48 was decommissioned between the same points. AASHTO renumbered the former proposed Interstate 68 between Washington and Annapolis as Interstate 595.

Routing

State Mileage Cities Junctions
Maryland 19.97 Greater Washington, Annapolis Interstate 95/495, Interstate 97
Source: October 31, 2002 Interstate Route Log and Finders List

Interstate 595 Maryland Annual Average Daily Traffic (AADT)

County From: To: AADT Composite
Prince Georges Exit 7/I-95-495 Capital Beltway Exit 8/MD 704 Martin Luther King Hwy. 105,025
Prince Georges Exit 8/MD 704 Martin Luther King Hwy. Exit 11/MD 197 Bowie 107,825
Prince Georges Exit 11/MD 197 Bowie Exit 13/U.S. 301 S/MD 3 N Robert Crain Hwy. 94,125
Prince Georges/
Anne Arundel 		Exit 13/U.S. 301 south/MD 3 north Robert Crain Highway Exit 16/MD 424 Davidsonville Road 79,880
Anne Arundel Exit 16/MD 424 Davidsonville Road Exit 21/Interstate 97 north 79,375
Anne Arundel Exit 21/Interstate 97 north Exit 22/MD 665 Aris T. Allen Blvd. 159,925
Anne Arundel Exit 22/MD 665 Aris T. Allen Blvd. Exit 23B/MD 450 Crownsville 128,625
Anne Arundel Exit 23B/MD 450 Crownsville Exit 23A/Maryland 2 south Parole 101,725
Anne Arundel Exit 23A/Maryland 2 south Parole Exit 24/MD 70 Rowe Boulevard 130,125
Source: 2002 AADTS Report (Maryland Department of Transportation State Highway Administration - Highway Information Services Division)
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Western Terminus - Interstate 95/495 - Capital Beltway - Glenarden, Maryland
Perspective from U.S. 50 east
Eastbound U.S. 50 at Exit 5, the eastern terminus of Maryland 410, the East-West Highway. Exit 7, located one mile to the east, is the eastbound beginning of Interstate 595 and junction with Interstate 95/495. Photo taken by Andy Field (06/02/03).
U.S. 50 eastbound widens to five lanes, adding two exit-only lanes for Exits 7A/7B - Interstate 95/495. The exit numbers of Interstate 595 continue the U.S. 50 mileposts numbering scheme. It is common practice to use mile based exit numbering for non-Interstate freeways in the state of Maryland. This format can be found on U.S. 29 from Columbia north to Interstate 70 as well. Photo taken by Andy Field (06/02/03).
Interstate 595 begins as Exits 7A/B depart for the Capital Beltway. This is a sprawling interchange that saw redesign in the early 1990s. Note the space allocation on the U.S. 50 pull-through panel. This space was to have held an Interstate 595 shield. Photo taken by Andy Field (06/02/03).
The first eastbound interchange of Interstate 595 is Exit 8 with Maryland 704/Martin Luther King Jr Highway. To the right the Interstate 95/495 ramps from Exit 7 split to their respective directions. Photo taken by Andy Field (06/02/03).
Eastern Terminus - Maryland 70 - Roscoe Rowe Boulevard - Annapolis, Maryland
Perspective from Interstate 595/U.S. 50 east/U.S. 301 north
The Interstate 595 designation applies to U.S. 50 up to the Maryland 70 interchange/Exit 24. This photograph looks at the final mile of the Interstate 595 stretch of the John Hanson Highway/U.S. 50-301. Photo taken by Andy Field (06/02/03).
Interstate 595 silently comes to an end at Exit 24/Maryland 70/Rowe Boulevard. Maryland 70 is a divided arterial serving downtown Annapolis and the State Capital complex. Traffic continuing to the east will meet the Chesapeake Bay Bridge in nine miles. Photo taken by Andy Field (06/02/03).
Closer inspection of the Exit 24 sign bridge on U.S. 50 east/U.S. 301 north. Maryland 2 also follows this stretch of freeway, although omitted on the pull-through panel here. Maryland 2 crosses the Severn River with U.S. 50-301 to Exit 27 where it turns north to Glen Burnie and Baltimore. Photo taken by Tim Reichard (09/08/02).
Perspective from U.S. 50 west/U.S. 301 south
Westbound U.S. 50/southbound U.S. 301/Maryland 2 as they cross the Severn River into the city of Annapolis. Exit 24 of Maryland 70 is one mile to the west. Photo taken by Andy Field (06/02/03).
Now west of the river, U.S. 50-301 and Maryland 2 draw to within one half mile of the western beginning of Interstate 595 and Exit 24 of Maryland 70. Photo taken by Andy Field (06/02/03).
Exit 24B for Rowe Boulevard northbound to Bestgate Road. Maryland 70 sees its northern terminus at this interchange and therefore only is signed for Exit 24A. Photo taken by Andy Field (06/02/03).
Westbound on U.S. 50/U.S. 301 at the Maryland 70 exit. Interstate 595 officially begins at this interchange. Only 18 miles separate this point on the John Hanson Highway with the Capital Beltway (Interstates 95/495). Photo taken by Tim Reichard (09/08/02).
A second view of the westbound beginning of Interstate 595. The hidden Interstate will reach Interstate 97 in just three miles and split with U.S. 301 in 11 miles. Photo taken by Andy Field (06/02/03).

Page Updated March 17, 2006.