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I-76 Grading & Bridge Reconstruction, MP 67.6 to 74.6

ALCM, LLC (ALCM) construction management staff is playing a vital role in completing the $91.3 million Roadway and Bridge Reconstruction of I-76 MP 67.6 to 74.6. This contract provides for the full depth reconstruction a widening to six lanes approximately 7 miles of I-76 in Westmoreland County.

Key Project Statistics:

  • 800,000 CY of Class 1 Excavation
  • 110,000 CYS of under cut excavation and backfill with Class B Rock
  • 600,000 SYS of full depth Bituminous Pavement
  • 64,000 LF of Drainage Pipe
  • 22,000 LF of Drill Shaft Foundations
  • 9,000 LF of 20 ft high Sound Wall
  • 8,000 LF of 20 ft high (average) Soldier Pile Retaining Wall
  • Reconstruction of 8 box culverts
  • Replacement of a two span, 224 foot long, PS I beam bridge
  • Demolition of two mainline bridges

I-76 Grading & Bridge Reconstruction, MP 67.6 to 74.6 photo

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  • ClientPennsylvania Turnpike Commission
  • LocationNew Stanton, PA
  • Value$18,701,309
    Major recommendations by ALCM that expedited schedule and reduced costs:
    • Modify the construction sequence of 8 soldier pile retaining walls saving approximately $160,000 for the Commission.
    • Performing certain preliminary and temporary roadway widening work using 24/7 weekend operations in lieu of evening week-day work saving over $200,000 in temporary barrier costs.
    • Elimination of a jack and bore pipe and installing the pipe by trenching, saving $54,000.
    • Proposing an alter design for monotube sign foundations saving $50,000.

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