ACTIVE TRAFFIC ADVISORIES (VIEW ALL):

Accelerated Bridge Construction

  • home
  • Accelerated Bridge Construction
Delaware River Bridge Alert
Hide Map

ABC Project Schedules and Facts

Click on a project to expand for more information.

show

DETOUR: Sept. 6-9, 2019 NE Extension, Milepost A58.88 bridge — I-476, LEHIGH COUNTY

show

DETOUR: Sept. 20-23, 2019 EASTBOUND, Milepost T238.09 bridge — I-76, CUMBERLAND COUNTY

show

DETOUR: Sept. 27-30, 2019 WESTBOUND, Milepost T238.09 bridge — I-76, CUMBERLAND COUNTY

SEPT. 6-9, 2019
NORTHEAST EXTENSION MILEPOST A58.88 BRIDGE REPLACEMENT PROJECT
DETOURS: BOTH DIRECTIONS.

LOCAL-TRAFFIC - BETWEEN LEHIGH VALLEY (EXIT 56) & MAHONING VALLEY (EXIT 74).

THROUGH-TRAFFIC - BETWEEN LEHIGH VALLEY (EXIT 56) & POCONO (EXIT 95).

STATE ROUTE 309 DETOUR: SR 309 will be closed at the Turnpike overpass between Chapmans Road and Snowdrift Road. Motorists will be directed to Route 22 and Route 100.
SEPT. 20-23, 2019
SEPT. 27-30, 2019

EAST-WEST MAINLINE, MILEPOST 238.09 BRIDGE REPLACEMENT PROJECT
DETOUR: EASTBOUND SEPT. 20-23, 2019.

ALL TRAFFIC - BETWEEN GETTYSBURG PIKE (EXIT 236) & HARRISBURG WEST (EXIT 242).

DETOUR: WESTBOUND SEPT. 27-30, 2019.

ALL TRAFFIC - BETWEEN HARRISBURG WEST (EXIT 242) & GETTYSBURG PIKE (EXIT 236).
image of abc project map

Engineers Adopt New Methods to Replace Old Bridges

In the last two decades, the PA Turnpike Commission (PTC) has completed dozens of bridge-replacement projects to ensure the safety and integrity of these critical structures. However, in 2017, construction was completed on two unique bridge-replacement projects, on the Mainline at milepost 20.47, and on the Northeastern Extension at milepost A57.66. They were the first bridges on the 552-mile toll-road system to be replaced using a modern technique called Accelerated Bridge Construction, or ABC.

Accelerated Bridge Construction (ABC)

Accelerated Bridge Construction is an engineering innovation that employs groundbreaking planning, design and construction methods and materials in a safe, cost-effective way to reduce the time it takes compared to traditional bridge-replacement techniques. ABC has been shown to improve work-zone safety for construction workers and the traveling public as well as project delivery time for transportation agencies and bridge builders. ABC also helps reduce impacts associated with traditional bridge projects, including onsite construction time and traffic disruptions.

Easing Traffic Impacts

Replacing a bridge while safely maintaining traffic can be a daunting engineering challenge and a headache for motorists. Traditional bridge-replacement techniques usually involve multiple overnight Turnpike closures, single-lane patterns, cattle chutes and other restrictions over two construction seasons. With ABC, impacts occur over a single long weekend instead of nine to 18 months of intermittent impacts.

In the fall of 2017, the PTC implemented its first ABC 55-hour closure on the east-west Mainline, I-76, between the Beaver Valley Exit (#13) and the Cranberry Exit (#28). The second 55-hour closure was completed on the Northeastern Extension (I-476) between the Lehigh Valley Exit (#56) and the Mahoning Valley Exit (#74).

Accelerated Bridge Construction

Click here to view a time lapse video of the PTC's 2017 Beaver County ABC bridge replacement.

STAYING UPDATED

To report an accident or other emergencies on the PA Turnpike, dial *11 on your mobile phone. To learn more about PA Turnpike conditions or to contact us, use one of these resources:

SOCIAL MEDIA

ON THE PA TURNPIKE

  • Variable & Digital Message Signs
    nearly 100 signs along the Turnpike
  • Highway Advisory Radio
    1640 AM (tune-in near interchanges)

BY PHONE

  • Turnpike Roadway Information Program (toll-free)
    866-976-TRIP (8747)
  • Customer Assistance Center (toll-free)
    800-331-3414 (weekdays, 8:30 a.m. - 4:30 p.m.)

ON THE WEB

close
Back
to
Top
PTCWEB01