Interstate 270 Spur (referred to as I-270Y by the MDSHA) is a 2.10-mile (3.38 km) spur off I-270 that connects I-270 and the Capital Beltway. It carries traffic headed southbound on I-270 to southbound I-495 and from northbound I-495 to northbound I-270, filling in the missing movements not available at the interchange between I-270 and I-495. The road heads north from I-495 as a six-lane freeway with a 55 mph (89 km/h) speed limit. The left lane in each direction serves as a HOV lane in operation between 3:30 and 6:30 PM weekdays in the northbound direction and between 6:00 and 9:00 AM weekdays in the southbound direction. I-270 Spur continues north through wooded suburban areas to an interchange with Democracy Boulevard adjacent to the Westfield Montgomery shopping mall. A short distance later, the road has a southbound exit and northbound entrance for the HOV lanes onto Fernwood Drive. Past here, I-270 Spur merges into northbound I-270 with separate ramps for the travel lanes and the HOV lanes.
Before 1975, when I-270 was called I-70S, this road was called I-270, without the word "Spur".
- Exit list
The entire route is in Bethesda, Montgomery County.
| Mile |
km | Exit | Destinations | Notes |
|---|---|---|---|---|
| 0.00 | 0.00 | I-495 south (Capital Beltway) – Washington, Northern Virginia | Southbound exit and northbound entrance | |
| 1.00 | 1.61 | 1 | Democracy Boulevard | |
| 1.35 | 2.17 | Westlake Terrace/Fernwood Road | Southbound exit and northbound entrance from HOV lanes | |
| 2.10 | 3.38 | I-270 north – Rockville, Frederick | Northbound exit and southbound entrance | |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | ||||
Read more about this topic: Interstate 270 (Maryland)
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