#LESNERBRIDGE update from Project Manager: “Demolition of all the superstructure of the old bridges has been completed and most of the substructure (footings and pile foundations) of the old bridges have been removed.”

Update from email:

Structural Scholars/Bridge Aficionados/Bored Readers Who Will Read This:

Just in case you are short on reading material for a Monday, and you’re asking yourself: “How can I be enlightened about the Lesner Bridge and the progress that we have been promised?” Rest your souls, for I present to you a quick update from Wojo the Kingfish of Bridges. You’ll be quite pleased to learn about the progress that is being made due to the diligent efforts of the crews and Kingfish and his trusty communications chump.
As always, we appreciate your questions and e-mails, so please don’t hesitate to contact us. We are regularly updating information on our WEB page at: http://www.vbgov.com/lesner-bridge. You can also follow us on Twitter at: @lesnerbridge.
If you know of someone who would like to be added to our update list, please have them get in touch with me at this e-mail address and I will be glad to add them. Please feel free to pass this along to others.
Thanks again for all of your interest and patience throughout this project. So . . . stay safe, look out for each other, and put the phone down while you’re driving.

*************************************************

Folks:
Since the movement of the gantry crane into position for the construction of the new eastbound Lesner Bridge last month, much progress has been made on the project.

Demolition of all the superstructure of the old bridges has been completed and most of the substructure (footings and pile foundations) of the old bridges have been removed. Work is continuing in the federal channel of the Lynnhaven Inlet to cut and remove the large submerged footings of the old bridges (old piers 14 and 15) located on either side of this channel and is expected to be completed by 8/15/2017.

Old Bridge Main Span Bridge Footing (Pier 14 WB) Loaded on Barge – NOTE the 12-inch cutoff piles

Old Bridge Main Span Bridge Footings (Piers 14 EB /WB and 15 WB) Loaded on Barge

The final placement of concrete for the backwall of Abutment A (west side of the bridge by the Lynnhaven Boat Ramps) was completed on July 21st and the first span (of 10) of the new eastbound bridge was completed on July 24th, 2017. The drilled shaft foundations, footings, and columns for bridges piers 1, 2, and 3 (of 9) have also been completed. Last week the contractor completed the foundation and footing for pier column 4 and plans and completed the column for this pier last Friday. Work is also continuing on the MSE (mechanically stabilized earth) walls located on both the eastern and western bridge approaches.

MSE Wall at the Scenic Overlook at Abutment A near the Lynnhaven Boat Ramps

We anticipate that only 1 or 2 more barge loads of bridge demolition structures remain to be delivered to Cabbage Patch Reef. For those of you that are interested, MAP Environmental has put together a great drone video of the placement of the old bridge materials into Cabbage Patch Reef.

Drilled shaft foundations continue to be installed for the foundation at pier column 5. Concrete placement for these shafts are being performed from the eastbound outside lane on the new bridge between the hours of 2:00 AM and 5:00 AM. The next anticipated lane closures for this concrete placement is on Wednesday and Thursday August 16th and 17th and on Wednesday and Thursday August 23rd and 24th.

In summary, the following work has been completed since our last project update in June:

· The two temporary steel girders have been removed from across Shore Drive and the western end of the new WB Lesner Bridge;

· Approximately 95% of the old Lesner Bridges have been demolished;

· The backwall at Abutment A has been completed;

· Span 1 of 10 for the new EB bridge has been completed and the gantry crane launched to Span #2;

· The footing for Pier #4 has been completed and the steel reinforcing for the pier column has been installed;

· MSE Wall #2 (near the Lynnhaven Boat Ramps) and Wall #3 (Scenic Overlook) have been constructed;

· 8 of the 10 drilled shafts for Pier #5 have been installed;

AMI, Inc. in Portsmouth, continues to build the superstructure of the new Lesner Bridge. A total of 162 of the 168 segments have been cast for the new eastbound bridge. It is expected that all bridge segments for the eastbound bridge will be cast by September 2017.

Aerial view of the bridge segment casting yard located at Atlantic Metrocast, Inc. in Portsmouth, VA (note the number of completed segments being stored for Lesner Bridge)


Over the next two weeks, the bridge contractor will:

· Complete Bridge Demolition with the removal of the eastern bridge abutments and remaining in-water concrete piles;

· Complete drilled shaft foundations at Pier #5;

· Mobilize material and equipment to Pier #6;

· Fill the western bridge approach to rough grade;

· Complete the construction of Span #2 and launch the gantry crane to Span #3;

· Complete Pier Column #4;

· Begin excavation for the leveling pad of the new MSE wall along the south side of Shore Drive between the new bridge and Vista Circle (in front of Lesner Inn);

· Begin installation of the steel “H” piles for the new bridge fender system on the south side of the new EB Lesner Bridge;

That’s it for now. Please drive safely!

-Chris

Christopher J. Wojtowicz, PE
Project Manager
City of Virginia Beach
Department of Public Works
Engineering Division
2405 Courthouse Drive
Virginia Beach, VA 23456-9031
Office: (757) 385-5785
Fax: (757) 385-5668
Email: cwojtowi@vbgov.com

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