NASTT NO-DIG 2015 - Reline White Paper TA-T6-03

SR 0006 CULVERT REHAB –

CLARKS SUMMIT, PA

USING ALUMINUM TUNNEL

LINER PLATE

NASTT’s 2015 No-Dig Show

Clarks Summit, PA - SR 0006

July 2013 – Slope & Structure

movement

February 2012 – South Structure

South Structure – Exposed Backfill


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.


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


The Solution: STV realized the benefits and

recommended the aluminum tunnel liner pipe

lining alternative.








Aluminum Tunnel Liner Plate – 2

Flange










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

http://www.nastt.org/

Engineering

NASTT NO-DIG 2015 - Reline White Paper TA-T6-03