CONQUERING CONNEAUT MARSH

THE PITTSBURGH-TO-ERIE SECTION OF INTERSTATE 79 HAD TO GO OVER CONNEAUT MARSH WHICH IS ABOUT A MILE WIDE IN SOME PLACES AND ABOUT 12 MILES LONG FROM EAST TO WEST. PIPE PILE BENTS OR PIERS WERE DESIGNED TO SUPPORT THE TWO-LANE BRIDGES CROSSING THE MARSH. A CHANNEL WAS DREDGED ACROSS THE SWAMP TO ACCOMMODATE FLOATING EQUIPMENT. PILES WERE HELD IN POSITION FOR DRIVING BY TWO FLOATING TEMPLATES WHICH WERE THE ONLY PIECES OF EQUIPMENT THAT HAD TO BE BUILT ESPECIALLY FOR THE PROJECT. WHEN THE PILE DRIVING WAS COMPLETED AT A BENT, THE BEAM ATTACHED TO THE PREVIOUSLY DRIVEN BENT WAS REMOVED, ANGLES THAT HAD BEEN PLACED ACROSS THE SLOTS TO LOCATE INDIVIDUAL PILES WERE RELEASED, AND THE TEMPLATE WAS FLOATED AHEAD TO THE SITE FOR THE NEXT BENT. THE DRIVEN PILES WERE FILLED WITH READY MIXED CONCRETE AND BENT CAPS FILLED. THE CONCRETE BRIDGE DECKS WERE CAST-IN-PLACE ON FIVE CONCRETE GIRDERS WHICH WERE PRESTRESSED OF HOLLOW BOX CONSTRUCTION. COMPLETION OF THE BRIDGES IS SCHEDULED BY MID- 1970.

  • Availability:
  • Supplemental Notes:
    • Vol 39, No 5, PP 43-46, 4 PHOT
  • Authors:
    • Goff, J S
  • Publication Date: 1969-5

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00215242
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 9 1970 12:00AM