MD 24 Interchange / Two-Lane ETL Extension
As part of the Maryland Transportation Authority’s (MDTA) $1.1 billion program to relieve congestion and provide more reliable travel times along the I-95 Corridor into Harford County, the MDTA is reconstructing the interchange at I-95 and MD 24 (Vietnam Veterans Memorial Highway) to accommodate the future northbound I-95 Express Toll Lanes (ETL).
The MD 24 interchange reconfiguration requires changes to existing traffic patterns, including the removal or addition of ramps, which will result in new ways drivers access I-95, MD 24, and MD 924. The existing loop ramp from northbound MD 24 to southbound I-95 will be removed and replaced with a new ramp, which traffic will access via a left turn at a new signal-controlled intersection. The existing loop ramp from northbound I-95 to northbound MD 924 will be widened to a two-lane loop ramp for all MD 24 and MD 924 traffic. This traffic will be separated from other northbound MD 24 traffic until it crosses over I-95, at which point the ramp will be split, allowing travelers to go left to continue north on MD 24 or go right to access MD 924. Northbound MD 24 traffic coming from south of the interchange will access MD 924 via a new ramp. Southbound I-95 traffic will continue to access MD 924 via the existing ramp. MD 24 traffic will be directed to the realigned loop ramp. Other ramps will remain with realignment modifications to accommodate the ETL lanes.
The reconstruction will affect the following ramps:
- Northbound I-95 off-ramp to MD 24 (Exit 77A)
- Northbound I-95 off-ramp to MD 924 (Exit 77B)
- Southbound I-95 off-ramp to MD 924 (Exit 77B)
- Southbound I-95 off-ramp to MD 24 (Exit 77A)
- MD 24 on-ramp to northbound I-95
- Northbound MD 24 on-ramp to southbound I-95
- Southbound MD 24 on-ramp to southbound I-95
Project Map
Traffic Advisories
**POSTPONED**
NEW TRAFFIC PATTERN ON SOUTHBOUND I-95 IN HARFORD COUNTY SCHEDULED FOR THE WEEK OF JANUARY 19
Baltimore (January 21, 2026) – Due to weather conditions, the Maryland Transportation Authority postponed implementing the split traffic pattern on southbound I-95 at the MD 24 interchange (Exit 77) and the new traffic pattern on southbound MD 24, originally scheduled to take place the week of January 19.
Extremely low nighttime air and surface temperatures prohibit crews from removing and applying line-striping necessary for the new lane configurations.
Once temperatures allow, southbound I-95 traffic will be split — with one lane to the left and three lanes to the right of barrier walls just south of the MD 24 interchange. In addition, a new traffic pattern will be implemented on southbound MD 24 at the on-ramp to southbound I-95.
The MDTA thanks motorists for their patience and reminds drivers to use caution and slow down when traveling while traveling through work zones.
This project is part of the MDTA’s I-95 Express Toll Lanes (ETL) Northbound Extension Program between MD 43 and north of MD 24 that will help alleviate delays and improve travel along northbound I-95 between Baltimore and Harford counties.
For more information, or to sign up for e-mail notifications, visit mdta.maryland.gov/I95ETLNB/home.html.
NEW TRAFFIC PATTERN ON SOUTHBOUND I-95 IN HARFORD COUNTY BEGINNING THE WEEK OF JANUARY 19
Stay Alert and Slow Down for Safety; Speed Limit Reduced to 55 mph
Baltimore (January 12, 2026) – As part of the Maryland Transportation Authority’s (MDTA) ongoing $1.1 billion program to relieve congestion and improve travel along I-95 between Baltimore and Harford counties, a new traffic pattern will be in effect on southbound I-95 at the MD 24 interchange (Exit 77) beginning the week of January 19, weather permitting, and continuing through fall 2026. Southbound I-95 traffic will be split — with one lane to the left and three lanes to the right of barrier walls just south of the MD 24 interchange. Signs will guide motorists as they approach the traffic split.
The new traffic pattern will allow crews to continue construction of the new bridge over Winters Run as part of the overall reconstruction of the I-95/MD 24 interchange. Motorists are advised to use caution and slow down as crews will be working behind the barrier walls.
The work zone speed limit on southbound I-95 will be reduced to 55 mph. Automated Speed Enforcement is in effect to slow motorists and help improve safety for work crews, drivers, and passengers. Fines for exceeding the posted work zone speed limit range from $60 to $1,000. Flashing lights will be activated in the work zone when workers are present. In addition, a new traffic pattern will be implemented on southbound MD 24 at the on-ramp to southbound I-95, with the two left lanes continuing south on MD 24, and the two right lanes exiting to the on-ramp. The on-ramp will be reduced to one lane prior to entering southbound I-95.
Drivers are reminded to slow down, use caution while traveling through work zones, plan ahead, and travel off-peak to avoid delays as this critical work continues. This project is part of the MDTA’s I-95 Express Toll Lanes (ETL) Northbound Extension Program between MD 43 and north of MD 24 that will help alleviate delays and improve travel along northbound I-95 between Baltimore and Harford counties. In addition to extending the northbound I-95 ETL, the program will replace several bridges that are more than 50 years old and provide new noise walls for adjacent communities. The I-95 ETL Northbound Extension Program is being constructed in multiple segments. For more information, or to sign up for e-mail notifications, visit mdta.maryland.gov/I95ETLNB/home.html.
Work Zone Speed Camera Enforcement Begins on I-95 at MD 24
Beginning Monday, June 2, 2025, Automated Speed Enforcement (ASE) equipment will be in effect in both directions on I-95 at the MD 24 interchange (Exit 77). This equipment will be used to slow drivers in the work zones currently in place on this stretch of I-95. Advance warning signs are in place prior to the work zone to alert drivers of automated speed enforcement use and a “speed trailer” will be on-site to display drivers’ speeds.
Maryland SafeZones’ goal is to slow drivers and make work zones safer environments for work crews, drivers and passengers. Even when workers are not present, work zones can be dangerous due to uneven pavement, lane shifts, reduced shoulders and other modifications. For more information on the program, visit safezones.maryland.gov.
Additional Project Information
The MD 24 interchange reconfiguration requires changes to existing traffic patterns that include the removal or addition of ramps resulting in new ways drivers will access I-95, MD 24, and MD 924. The existing loop ramp from northbound MD 24 to southbound I-95 will be removed and replaced with a new ramp which traffic will access via a left turn at a new signal-controlled intersection. The existing loop ramp from northbound I-95 to northbound MD 924 will be widened to a two-lane loop ramp for all MD 24 and MD 924 traffic. This traffic will be separated from other northbound MD 24 traffic until it crosses over I-95 at which point the ramp will be split where travelers can go left to continue north to MD 24 or go right to access MD 924. Northbound MD 24 traffic coming from south of the interchange will access MD 924 via a new ramp. Southbound I-95 traffic will continue to access MD 924 via the existing ramp. MD 24 traffic will be directed to the realigned loop ramp. Other ramps will remain with realignment modifications to accommodate the ETL lanes.
Other project highlights include:
- Roadway
- Provide an overlay or reconstruct approximately two miles of northbound I-95 to add two northbound ETLs from south of Old Joppa Road to north of MD 24.
- Reconstruct approximately 0.8 miles of MD 24 from Edgewood Road to MD 924/Tollgate Road.
- Construct a new ETL ramp from northbound I-95 to MD 24.
- Install a new traffic signal at the intersection of MD 24 and the new ETL ramp.
- Structures
- Reconstruct the MD 24 overpass.
- Construct a new ETL ramp structure from I-95 to MD 24.
- Construct a new overpass on the ramp from northbound MD 24 to MD 924.
- Widen Winters Run Bridge to its ultimate configuration for future southbound ETL improvements (not currently funded).
- Build ten retaining walls.
- Install new signage including dynamic message and toll information signage.
- Install new Intelligent Transportation Systems.
- Provide partial interchange lighting at traffic decision points.
- Perform drainage work and stormwater management.
- Provide landscaping.
- Turfgrass/meadow establishment.
- On-site reforestation.
- Tree plantings adjacent to streams for thermal protection.
- Landscaping at stormwater management facilities.
Rendering of Reconstructed MD 24 interchange
Construction Details
Work associated with this project started in the fall of 2024. All I-95 travel lanes and traffic operations on MD 24 will be maintained during peak-traffic periods; however, some travel lanes will be closed during off-peak periods. Drivers should use caution and obey the posted speed limits within the construction zone. Sign up for email alerts about traffic advisories and notices at https://mdta.maryland.gov/I95ETLNB/home.html.
Initial construction work will involve shifting I-95 traffic in both northbound and southbound directions to the outside lanes to permit work to begin in the median areas. The off-ramp from I-95 southbound to MD 24 northbound will be realigned with temporary closures and detours in place. For traffic on MD 24, the on-ramp to I-95 southbound will be realigned with temporary closures and detours in place. All closures will be announced in advance via traffic alerts posted on the website and through social media.
Work is anticipated to be completed by fall of 2027.
Additional Information