Loading...
HomeMy WebLinkAbout#52 Demo PlanNG I H 615 Church Street, Lynchburg, Virginia 24504 P. 0. Box P-7000, Lynchburg, Virginia 24505 Tel: (434) 845-0301 Fax: (434) 845-0306 August 13th, 2021 Email: jaaronbullard@ncdot.gov North Carolina Department of Transportation 1629 Hwy 258 South Kinston, NC 28504 Attn: Mr. Jon Aaron Bullard, PE, Resident Engineer RE: Contract ID: C204475 TIP: B-5619 Bridges #52 and #152 over the Neuse River Overflow on SR-1389 Lenoir Co., NC Subject: Bridge Demolition Plan; Bridge 52 Dear Mr. Bullard: BRIDGE 52 The following is the English proposed plan and procedure for dismantling and removing of the existing 9 span bridge structure over the Neuse River. Bridge #52 3 barges are planned in the river for receiving the concrete debris. Each barge is of the size 10'x40' approximately, and care will be taken not to disturb the river bed. Superstructure • Using CAT 320 hydraulic hoe ram, the existing deck and existing parapet will be broken. The concrete debris will be allowed to fall and will be captured in 3 barges that will be positioned to cover a full span at a time. This barge will be brought close to shore for removal and emptying of the debris, before being positioned under the next existing bridge span. The barge may be lined with a container that will be used to collect the fall debris and that can be lifted off the barge with a crane on the shore. The barges will not be dragged along the bottom or shore line. Substructure -All existing Bents • Work Bridge will be installed • Using crane Linkbelt LS 218HII (110 Ton), the cap and steel beams will be lifted out. • All existing piles will be removed completely or to at least one (1) foot below existing ground elevation or to river bed elevation. Substructure -End Bents 1 and 2 • Using hydraulic hoe ram and excavator, remove concrete portion of end bents • All piles will be removed to at least one (1) foot below existing ground elevation • Beam Max Weight Calculation - • Beam - 12" wide 3'-0" Height x SO'Length • At 160 lbs per foot, total weight of each beam: 8000 lbs or 4 Tons The specifications for the 320 excavator and Linkbelt LS 218HII are attached for your reference. All debris will be disposed of in at the English waste site or other approved location(s). Safety is always the first concern to English; as such no worker will be working closer than six feet (6') to an exposed edge higher than five feet (5') above the ground without having proper fall protection. English will also have a full time spotter on the ground to insure no one is in a dangerous location prior to demo work starting. This person will have complete authority to stop all operations if any unsafe work is noticed. Sincerely, W. C. English, Incorporated Ramamoorthy Venkateswaran (Venky) Project Manager Page 2 of 2