Rail

SEPTA honored for high-speed line repair project

Posted on February 27, 2013

Southeastern Pennsylvania Transportation Authority (SEPTA) and HNTB Corp. received a 2013 Diamond Award Certificate from the American Council of Engineering Companies of Pennsylvania (ACEC/PA) for the Norristown High Speed Line (NHSL) Emergency Slope Repair Project.

The ACEC/PA Excellence Awards program honors the engineering achievements of ACEC/PA members and their clients. SEPTA and HNTB received their award at a gala held in Hershey, Pa., earlier this month.

SEPTA and HNTB were recognized for their work on the area along the NHSL between Roberts Road and Garrett Hill Stations that shifted as a result of the Philadelphia region being deluged with almost 30 inches of rain during a 45-day period in August and September 2011. In this section of the NHSL, a layer of saturated soil lost its strength, resulting in about 150 feet of the 40-foot tall embankment supporting the tracks to drop vertically and push out the side of the slope. The inbound track in this area dropped approximately 12 inches and moved horizontally by about 16 inches.

SEPTA retained HNTB to inspect and survey the entire slope before performing a subsurface investigation at the affected area. After performing soil borings, HNTB installed inclinometer casings — steel tubes that allow for the lowering of a probe to a depth of 65-feet below the ground surface to measure movement in the embankment — at the top and toe of the slope. A daily track and embankment monitoring program was also instituted.

HNTB designed the permanent slope repair and provided construction support throughout the project. Because of the location of the slope failure, a temporary access road had to be built before the project commenced.

Thirty-three days after the slope failed, design was completed and a construction contract for the permanent repairs was awarded. The site repairs included protecting adjacent properties and stream from erosion and runoff; constructing a 245-foot-long post and plank retaining wall to support the new embankment; removing portions of the saturated soil from the slope; installing drainage features to allow water to infiltrate out of the slope; rebuilding the slope at a less steep, more stable angle; and planting native grasses to protect the surface of the new embankment from erosion. Construction was completed in March 2012.

FEMA awarded SEPTA $2,943,479 for the project. To view photos and for more details about the project, click here.

"Receiving this award along with our partner, HNTB, recognizes our collaborative efforts in an emergency situation," said SEPTA GM Joseph M. Casey. "Thousands of our customers use the Norristown High Speed Line every day and our work with HNTB established a plan that allowed us to maintain service while the repairs were being made."

View comments or post a comment on this story. (0 Comments)

More News

Report calls for new, expanded rail systems in Dallas-Fort Worth area

The projected cost of two of the new rail lines suggested would be about $3 billion, according to the Mobility 2045 report.

Study could help riders find right place to stand in before train arrives

Passengers stood in the best possible position on the platform when they received continuous, mostly visual information.

BART to add new ride quality monitoring tool

Incorporating cutting edge GPS and accelerometer sensors with an intuitive easy-to-use control software interface, dFuzion Inc.'s rMetrix effectively and efficiently assesses ride quality, comfort, and safety.

Wabtec, GE Transportation to merge

Union is expected to drive the advancement and implementation of technology solutions to improve safety, efficiency, and productivity for the transportation industry.

L.A. Metro marks Regional Connector milestone

The rail line, which is now 50% complete, is expected to serve 88,000 riders daily.

See More News

Post a Comment

Post Comment

Comments (0)

More From The World's Largest Fleet Publisher

Automotive Fleet

The Car and truck fleet and leasing management magazine

Business Fleet

managing 10-50 company vehicles

Fleet Financials

Executive vehicle management

Government Fleet

managing public sector vehicles & equipment

TruckingInfo.com

THE COMMERCIAL TRUCK INDUSTRY’S MOST IN-DEPTH INFORMATION SOURCE

Work Truck Magazine

The number 1 resource for vocational truck fleets

Schoolbus Fleet

Serving school transportation professionals in the U.S. and Canada

LCT Magazine

Global Resource For Limousine and Bus Transportation

Please sign in or register to .    Close