Allegany County (2)

• MD 639 @ North Entrance to Western Maryland Health System (WMHS)
• MD 639 @ South Entrance to WHMS

Anne Arundel County (9)

• MD 2 @ MD 408/ MD 422
• MD 450 @ Taylor Avenue/Spa Road
• MD 32 @ Airfield Road Interchange (2 roundabouts)
• MD 32 Ramps @ Guilford Rd./National Business Pkwy 
• MD 32 @ Samford Rd. Interchange
• MD 2 @ Friendship Road
• MD 256 @ MD 258
• MD 175 @ MD 677/Sappington Station Rd.

Baltimore County (3)

• MD 45 (York Rd.) @ MD 146 (Dulaney Valley Rd.)/Joppa Rd./Allegheny Ave.
• MD 372 @ Hilltop Road/Entrance to UMBC
• MD 702 @ Hyde Park Road

Caroline County (1)

• MD 307 @ MD 313/MD 318

Calvert County (3)

• MD 765 @ Calvert Beach Rd
• MD 765 @ Southern Connector Blvd.
• MD 760 @ Olivet Beach Rd./Southern Connector Blvd.

Carroll County (6)

• MD 140 @ MD 832/Antrim Boulevard
• MD 88 @ MD 833/Lower Beckleysville Road
• MD 97 @ MD 850 (Old Liberty Road)
• Relocated MD 30 (Hampstead Bypass) at the northern tie-in (MD 30 Business)
• Relocated MD 30 at MD 482
• Relocated MD 30 (Hampstead Bypass) at Phillips Drive/southern tie-in (MD 30 Business)

Cecil County (2)

• MD 213 @ Leeds Road/Elk Mill Road
• MD 273 @ MD 276

Charles County (2)

• MD 5 @ MD 231 (Hughesville By-pass) (2)

Frederick County (12)

• MD 17 @ ‘B’ Street/Maryland Avenue
• MD 17 @ MD 180
• MD 80 @ Sugarloaf Parkway
• US 15 @ MD 464
• MD 80 @ SB I 270 on/off ramp
• MD 355 Relocated (Worthington Blvd.) @ Sugarloaf Pkwy.
• MD 355 Relocated (Worthington Blvd.) @ Sprigg Street
• MD 351 @ Elmer Derr Road
• MD 17 @ US 340 On/Off Ramps
• MD 17 @ Dutchman's Creek Drive/Rosemont Ave.
• MD 17 @ Volunteer Drive
• MD 475 @ (East St.) @ Franklin Street

Harford County (3)

• MD 7 @ Holly Oaks Drive
• MD 165 @ MD 24
• MD 23 @ Commerce Road
  [back]

Howard County (14)

• MD 94 @ MD 144
• MD 94 @ Old Frederick Road
• MD 100 @ MD 103 Interchange (2 roundabouts)
• MD 100 @ Snowden River Parkway Interchange
• MD 100 @ MD 104 Interchange
• US 29 @ MD 216 Interchange (2)
• US 29 @ Hopkins–Gorman Road Interchange
• MD 216 @ Maple Lawn Blvd
• MD 216 @ Old Columbia Pike (Maple Lawn)
• MD 32 @ Burntwoods Rd./Ten Oaks Rd. (2)
• MD 32 @ Pfefferkorn Rd.

Kent County (2)

• US 301 @ MD 291 Interchange (2 Roundabouts)

Montgomery County (1)

• US 29 SB Off Ramp @ Dustin Road
  

Prince George’s County (6)

• US 1 @ 34th Street/Perry Street
• MD 193 @ Oak Grove Rd.
• MD 637 @ Good Hope Ave.
• MD 637 @ Oxon Run Dr.
• I–95 @ Ritchie–Marlboro Road Interchange (2 roundabouts)

Queen Anne's County (3)

• MD 18 @ Castle Marina Road
• US 50 EB on/off ramp @ Thompson Creek Road
• MD 835 (Nesbit Rd.) @ Shoreway Drive

Saint Mary's County (1)

• MD 234 @ MD 238

Washington County (2)

• MD 63 @ MD 58/Cearfoss Pike
• MD 66 @ Mt. Aetna Road

Wicomico County (1)

• MD 513 Division Street