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PBES Innovative Projects
Epping 13940 |
Location | Mill Street over Lamprey River | State | NH | Completion Date | August 24, 2004 | Contact Person | Peter E. Stamnas, P.E. New Hampshire Department of Transportation Phone: (603) 271-2731 Email: pstamnas@dot.state.nh.us | Description | The 115' single span butted box precast elements were placed on an entirely precast substructure. Nine precast footings pieces were leveled using leveling screws and then grouted in place. Full moment connections were created between wing and abutment stems to precast footings by means of grouted splice sleeves. The connections were cured overnight, , the substructure was backfilled and the butted box beams were placed. The joints between beams were grouted and transversely post-tensioned. Finally, the deck surface was membraned and paved, and rail was placed. It took less than eight days from the time the first precast footing was lifted from the trailer to the time when the bridge was opened to traffic. The contract included a 14 day requirement to open bridge to traffic with an incentive/disincentive of $5,000/day. The contractor received a $30,000 incentive bonus. | Photo |
| Prefabricated Elements | Footings, wings, abutment stems, and beams, substructures | Other Keywords | Precast prestressed box beams, speed of construction,total substructure prefabrication | Advantages | Rapid assembly time may preclude the need for a detour., traffic disruption |
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Contact
Vasant Mistry
Office of Bridge Technology 202-366-4599 E-mail Vasant
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This page last modified on 05/12/08 | |