State Route 10, 100 and 200 in Maryland

By | October 18, 2022

State Route 10 in Maryland

Get started Brooklyn Park
End pasadena
Length 7 mi
Length 12 km
→ Ellicott City

Mountain Road

Baltimore-Annapolis Boulevard

Furnace Branch Road

Ordnance Road

→ Baltimore Beltway

State Route 10 or SR-10 is a state route in the U.S. state of Maryland. The highway connects several suburbs south of the city of Baltimore with the Interstate 695 beltway. The route is 12 kilometers long.

  • ElectronicsMatter: State facts of Maryland, covering history, geography, demography, economics, politics, and administrative division of Maryland.

Travel directions

The highway is called the Arundel Expressway and begins at the interchange with SR-100, a tangential connection south of Baltimore. The highway runs 2×3 lanes north through the suburb of Glen Burnie, which has a population of 39,000. SR-10 ends at Brooklyn Park on Interstate 695, Baltimore ‘s beltway.


The highway was proposed in the mid-1950s as a highway between Baltimore and Annapolis to relieve State Route 2. In November 1970, the first section opened, which runs along State Route 100. In December 1972, the northernmost section opened for a mile south of I-695. In October 1977, this section was extended south to Furnace Branch Road and to Baltimore-Annapolis Boulevard in March 1978, completing four miles of State Route 10 as a freeway.

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In 1981 it was decided not to build the highway further to Annapolis for the time being. However, in the 1980s, work began on building the missing link to State Route 100. In October 1988, 4 miles again opened to State Route 100. The short exit from State Route 100 to State Route 2 opened to traffic in March 1991.

Traffic intensities

Traffic volumes on SR-10 are quite stable at 52,000 vehicles in 2×3 lanes. This does not cause congestion.

State Route 100 in Maryland

Get started columbia
End pasadena
Length 22 mi
Length 36 km
0 → Washington1A Long Gate Parkway

1B Executive Park Drive

1C Center Park Drive

2 Waterloo Road

3 Snowden River Parkway

4 Meadowridge Road

5 → Washington / Baltimore

6 Washington Boulevard

7 Dorsey MARC Station

8 Coca-Cola Drive

9 → Washington / Baltimore

10 Arundel Mills Boulevard

11 Telegraph Road

13 → Baltimore / Annapolis

14 Quarterfield Road

15 Oakwood Road

16 → Baltimore / Pasadena

19 Catherine Avenue

20 Edwin Raynor Boulevard

State Route 100 or SR-100 is a state route in the U.S. state of Maryland. The highway forms an east-west connection south of the city of Baltimore. The highway is 36 kilometers long.

Travel directions

State Route 100 near Baltimore-Washington Airport.

In Ellicot City, SR-100 branches off from US 29, which connects the highway with Interstate 70. The highway then has 2×3 lanes and winds through the suburban area southwest of Baltimore. At Elkridge one crosses Interstate 95, the highway from Washington to Baltimore. Not far after that you cross the SR-295, the parkway between the two cities. The highway then has 2×2 lanes and passes south of the airport and crosses Interstate 97 at South Gate, the highway from the state capital Annapolis to Baltimore. Then one crosses the SR-10, a short highway to Baltimore ‘s beltway. A few miles after that, the SR-100 ends in the suburb of Pasadena.


The easternmost section of the freeway was constructed first, the section from I-97 to Jacobsville being completed in the late 1970s. The section between I-95 and I-97 was constructed in 1993-1994. The westernmost section between US 29 and I-95 opened to traffic in November 1998.

Traffic intensities

The SR-100 is not very busy according to capacity with 85,000 to 94,000 vehicles in 2×3 lanes. This slowly descends to Pasadena.

State Route 200 in Maryland

SR 200
Get started Gaithersburg
End Laurel
Length 20 mi
Length 31 km





→ Washington / Baltimore

Konterra Drive


The State Route 200, also known as the Intercounty Connector or ICC is a state route and toll road in the U.S. state of Maryland. The highway forms an east-west route north of Washington, connecting Interstate 370 in Gaithersburg with Interstate 95 and US 1. The highway is 31 kilometers long.

Travel directions

The ICC begins as an extension of Interstate 370, a short branch of Interstate 270, the highway from Washington to Frederick. The highway winds through northern Washington’s suburban area, connecting with several of the city’s radial highways, including US 29. The highway intersects Interstate 95 at Laurel and then ends at US 1.


As early as the 1970s, it was anticipated that a second ring road from Washington DC would be necessary, due to the strong suburbanization and the pressure on the then 10-year-old Capital Beltway. The Intercounty Connector is not formally part of a second ring road, but it does run more or less over the planned route from the 1970s.

Construction of the highway began in November 2007. The work is divided into 5 contracts, A through E. On February 23, 2011, the first section (contract A) was opened between I-370 and State Route 97 for 12 kilometers. This segment cost $478 million. On November 22, 2011, the second phase opened for 17 kilometers from SR-97 to I-95. Then, on November 11, 2014, the remaining 2.5 kilometers from I-95 to US 1 opened in Laurel.

Opening history

From Unpleasant Length Opening
Rossmoor 12 km 23-02-2011
Rossmoor 17 km 11/22/2011
US 1 (Laurel) 2 km 10-11-2014


The ICC has a fully electronic toll system with E-ZPass. The toll costs are variable and for the first part of 12 kilometers they are $0.60 at night and $1.45 in rush hour. Users without E-ZPass will have the bill sent home with an additional administration fee of $3.

State Route 200 in Maryland