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70 40

I-70(E-W)/US 40(E-W) Eastern Duplex
Page 1 of 2 · Ellicott City to New Market

Interstate 70 and US Route 40 join twice. The eastern duplex spans 29.3 miles from West Friendship to Frederick in Howard, Carroll, and Frederick Counties.

Timothy Reichard 12/21/02

Eastbound on I-70/US 40 near the eastern split. Most of I-70 between Frederick and Ellicott City was built by upgrading the US 40 divided highway. Nearing Baltimore, US 40 had too much development to warrant upgrading, and so an I-70 alignment was chose to the north to feed into Baltimore. As a result, the two highways split here and take separate routes into Baltimore.


Timothy Reichard 12/21/02

I-70/US 40 widens to four lanes, with two exiting as US 40 and two staying as I-70.


Timothy Reichard 12/21/02

The I-70/US 40 split. US 40 is a divided highway for most of its remaining eastbound journey to Delaware. To the west, US 40 is mainly a freeway almost to Pennsylvania. I-70 east heads straight toward Baltimore from here to end at a Park & Ride lot at the city line.


Timothy Reichard 9/3/02

US 40 westbound leaving the Baltimore area and Ellicott City. There is little warning that the divided highway is about join a major interstate, I-70.


Timothy Reichard 9/3/02

US 40 narrows to an onramp to I-70. Thus begins the trek to Frederick on I-70/US 40.


Timothy Reichard 1/13/03

The first westbound exit is for MD 32, which is itself a rural freeway several miles to the south.


Timothy Reichard 8/25/02

Exit 76 is the second exit westbound after US 40 joins I-70. MD 97 serves as a bypass around Westminster about 20 miles to the north. MD 97 runs concurrently on that bypass with MD 140, the downgraded child route of US 40.


Timothy Reichard 8/25/02

Reassurance shields westbound.


Timothy Reichard 8/25/02

MD 94 begins at this interchange and heads south to end at the Howard/Montgomery County line, rather than ending at another state route. Right next to I-70/US 40, MD 94 meets old US 40 (now MD 144) at a roundabout.


Timothy Reichard 9/3/02

The north end of MD 94 at I-70/US 40. MD 94 crosses the freeway over an overpass and then ends at the ramps on the other side.


Timothy Reichard 8/25/02

The number 68 is seen in three different contexts along both I-70/US 40 duplexes in Maryland. The first occurrence is as a route number here at the MD 27 exit. MD 27 is one of the main north-south routes in the area.

The next occurrence of the number 68 is between the duplexes with US 40. MD 68 meets I-70 at Exit 18, or about 17 miles from the beginning of I-68. There are plenty of signs at the MD 68 exit that try to make the distinction between I-68 and MD 68.


Timothy Reichard 8/25/02

To continue on this westbound tour of I-70/US 40, see Page 2 · New Market to Frederick


Local Names

70 WestEisenhower Memorial Highway
40 West Frederick Freeway
70 40 DuplexBaltimore National Pike
70 EastInterstate 70
40 EastBaltimore National Pike

Terraserver Imagery

Adjacent Multiplexes


West to Hancock


East to Midvale, DE


West to Frederick



70 40 Duplex Page 2 · New Market to Frederick
70 40 · MDRoads.com
70 40 · Interstate Guide & US Ends
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