Official presentation of the Clarks Summit PA Reline paper submitted by Contech Engineered Solutions to the North American Society for Trenchless Technology's No-Dig 2015 show. Here is the link to the complete case study - http://www.conteches.com/knowledge-center/case-studies/case-study-details/articleid/1342/.

1. SR 0006 CULVERT REHAB –
CLARKS SUMMIT, PA
USING ALUMINUM TUNNEL
LINER PLATE
NASTT’s 2015 No-Dig Show

2. Clarks Summit, PA - SR 0006

3. July 2013 – Slope & Structure
movement

4. February 2012 – South Structure

5. South Structure – Exposed Backfill

6. Clarks Summit, PA - SR 0006
Design Development: STV studied a full range of solutions.
Considerations included:
• Safety of the public and contractors
• Traffic would need to be maintained on either side of the roadway.
Any replacement alternatives would requires two stages, under each
side of the highway.
• Constructability
• Disturbance of the pipes, causing a collapse
• Hydraulics
• Duration of construction. The pipes were now a separate rush
project.
• Cost. The full range of solutions came with a range of costs with a
few million dollars spread.

7. Clarks Summit, PA - SR 0006
Some of the alternatives included:
• Replace with new CMP’s
• Replace with a box culvert
• Replace with a precast arch
• Replace with a bridge including an option to remove
embankment to the top of the pipes and constructing the
bridge over the pipes. The pipes would be removed after
the first half of the bridge was constructed.
• Steel liner
• Aluminum liner

8. Clarks Summit, PA - SR 0006
The Solution: STV realized the benefits and
recommended the aluminum tunnel liner pipe
lining alternative.

9. Clarks Summit, PA - SR 0006

10. Clarks Summit, PA - SR 0006

11. Clarks Summit, PA - SR 0006

12. Clarks Summit, PA - SR 0006

13. Clarks Summit, PA - SR 0006

14. Clarks Summit, PA - SR 0006

15. Clarks Summit, PA - SR 0006

16. Aluminum Tunnel Liner Plate – 2
Flange

17. Clarks Summit, PA - SR 0006

18. Clarks Summit, PA - SR 0006

19. Clarks Summit, PA - SR 0006

20. Clarks Summit, PA - SR 0006

21. Clarks Summit, PA - SR 0006

22. Clarks Summit, PA - SR 0006

23. Clarks Summit, PA - SR 0006

24. Clarks Summit, PA - SR 0006

25. Clarks Summit, PA - SR 0006

26. Costs
• Design Estimate: $ 1,121,267
• Low Bidder’s Original Contract: $ 1,195,014
• Final Contract: $ 1,184,826
Copyright 2015 by the North American Society for Trenchless Technology.
Original paper distributed at NASTT’s 2015 No-Dig Show. All rights reserved.
Used with permission.
www.nastt.org