Archive for the ‘Bridge’ Category

Interstate 10 Bridge over Pascagoula River, Moss Point, Mississippi

Interstate 10 Bridge over Pascagoula River, Moss Point, Mississippi

The time sensitive project was awarded to TL Wallace Construction, Inc. as a thirty-one calendar day contract to repair I-10 Bridge with a bid of $5.2 million. The contract called for $100,000 per day in potential damages (each day was divided into four, twenty five thousand dollar increments). The same metric was used as the basis for determining the reward incentive. The first order of business required the removal of two tugs and one barge that were precariously positioned under the bridge before the actual bridge demolition could begin. Next, we had to demolish and remove the existing bridge which was damaged by afore mentioned vessels that were blown into the bridge by Katrina. Due to the fact that normal communications and infrastructure were nonexistent immediately after Katrina, Wallace working directly off the remaining bridge deck as well as crane mounted barges relied on portable generators, pickups as offices and cell phones for communications. All work was scheduled on a continuous 24-hour rotation. Many hard working team members contributed to this high-profile and demanding work and the associated work schedule. It took everyone from the laborer to the home office to pull this off. We then drove 5 bent of piling in the Pascagoula River basin and immediately began pouring caps. After which we erected girders and then used the stay-in-place form system for the bride decks. The six span continuous deck unit was poured in one pour with high early strength concrete. Bridge rail was started within eighteen hours after completing deck pour. The project was complete and ready for traffic forty-eight hours after completing the deck pour. Entire project was completed in twenty-one calendar days, ten days ahead of scheduled completion.

US 90 Bridge over CSX Railroad Overpass

US 90 Bridge over CSX Railroad Overpass

In January 2007, TL Wallace Construction, Inc. began construction on the US 90 Bridge over the CSX Railroad Overpass and the Biloxi Bay. We performed demolition on the existing CSX bridge and completely rebuilt it. The CSX bridge design/construction was complicated  by the severe skew that the railroad intersected US Hwy 90. This problem was resolved by using post-tensioned concrete straddle bent caps that spanned the railroad that required extensive false-work and detailed false-work design in conjunction with steel plate girder bridge stringers. We also constructed 3 spans of each end of the Biloxi Bay Bridges, for a total of 12 spans. In addition, TL Wallace was responsible for all roadway items that included earthwork, drainage, MSE retaining walls, base, paving, curb and gutter, and all traffic control. This design/build project required us to coordinate with the railroad for construction over the tracks and with the Cities of Gulport and Ocean Springs concerning traffic control. TL Wallace Construction, Inc. worked on these project as a subcontractor to a Massman, Kiewit and Taylor Brothers Joint Venture, The project was completed ahead of schedule in December 2007.

Harrison County/US Hwy 90 – Bridge Replacement

Harrison County US Highway 90 Bridge Replacement

These two separate but adjoining contracts in Harrison county, Mississippi were bid and awarded on the same date and worked as a single project. Project consisted of grading, drainage and bridges, Project consisted of eleven bridges including two, three thousand foot long bridges over The Biloxi River.

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