APRIL 2020

Sunday, April 26, 2020 – Saturday, May 2, 2020
(Phase 2 Activity):
  • Removal of the overhang brackets and bridge sidewalk formwork at pier 8, north bridge.

  • Installation of the pedestrian railing at spans 3, 5, 6 and 7 on the north bridge. 

  • Stripping and removal of the timber work platform at pier 8 on the north and south bridges.

  • Hand chipping the bridge deck at spans 8 - 11 for repair.

  • Shot blasting and cleaning of the existing milled deck slabs in spans 8 - 11.

  • Prepping of the deck for latex modified concrete overlay at spans 8 - 12.  

  • Resetting of existing railing on the north bridge.

  • Placing of latex modified concrete for the proposed bridge decks in spans 8 and 9 on the north bridge.

Sunday, April 19, 2020 – Saturday, April 25, 2020
(Phase 2 Activity):
  • Removal of a total of 8 existing rivets from the top and bottom flanges of the existing floor beams.

  • Drilling for pedestrian railing bolts at spans 8 and 10 on the north bridge.   

  • Installation of the jacking angles at pier 11 on the south bridge, spans 11 and 12.

  • Installation of the screed railing for the finishing machine in spans 1 and 2 on the north bridge.

  • Shot blasting of the existing milled deck surface in spans 1 and 2.

  • Milling span 8 through the east approach north bridge.

  • Loading of materials and equipment off site at spans 8 - 15 in preparation for milling.

  • Stripping and removal of the overhang brackets and sidewalk formwork from the sidewalk closure pours at piers 11 and 12 on the north bridge.

  • Stripping of the timber overhang formwork and brackets from spans 12 and 13 on the north bridge.

  • Hand chipping and removal of the remaining existing overlay along the curb and parapet edge in spans 8 and 9. 

Sunday, April 12, 2020 – Saturday, April 18, 2020
(Phase 2 Activity):
  • Installation of jacking angles at piers 9 and 10, south bridge.

  • Removal of 16 existing rivets in the top and bottom flanges of the existing floor beams for the interior and exterior girders.

  • Setting up screed railing.

  • Pressure washing in spans 4 and 5 for overlay on the north bridge.

  • Curing of sidewalk behind both west and east single face barriers.

  • Median repair on the south bridge.

  • Deck repairs and overlay at span 6, north bridge (overlaid surface was covered with a single layer of clean wet burlap and then later followed by polyethylene plastic).

  • Drilling for historical bridge railing anchor bolts at spans 14 and 15.

  • Grouting blockouts under historical bridge railing anchor plate at spans 12 and 13.

  • Installation of historical bridge railing at span 15 (north bridge) and drilling for proposed 42” pedestrian railing bolts at spans 7 and 8.

  • Prepping span 5 on the north bridge for the upcoming placement of Latex-Modified Concrete overlay.

  • Placement of Latex Modified Concrete overlay at span 5 on the north bridge.

  • Received and stockpiled overhead sign structures at the westbound gore area.

  • Tensioning bolts in the jacking angles at pier 9, south bridge.

  • Repairing of the electrical conduit encountered at pier 12 in the median barrier on the north bridge.

  • Replacement of the electrical cable and ground wire between the existing streetlight junction boxes in spans 11 – 14.

  • Pulling of new ground cable between the junction box in span 14 and and the junction box in span 12.

  • Wiring in median barrier at pier 11 for streetlight repair.

Sunday, April 5, 2020 – Saturday, April 11, 2020
(Phase 2 Activity):
  • Assembling of Bidwell concrete paver, working bridge for concrete overlay and “Dry-Run” of the paver at spans 6 and 7.

  • Removal of existing armored joints at piers 8, 9 and 11.

  • Saw cutting and chipping of identified areas of the existing bridge deck for repair at span 5 and 15.

  • Resetting existing pedestrian railings at spans 11 and 12.

  • Drilling for historical bridge railing at spans 10 – 13.

  • Grouting block out under historical bridge railing anchor plate at spans 9, 10, 12 and 13.

  • Cleaning and loading of materials and equipment out of spans 8 – 15, north bridge.

  • Removal of debris from the deck in preparation of upcoming deck shot blasting operation.

  • Power washing of deck between spans 1 – 7 for future placement of latex-modified concrete overlay.

  • Assembling and installation of metallic forms for single-face barrier wall at the east abutment.

  • Demolition and installation of forms for half face barrier at west abutment.

  • Repair of median cable at pier 12 and removal of solar sensors from lamps along the median light.

  • Relocation of barges from shore to pier 10 and from pier 6 to pier 3. 

  • Prepared sidewalk at the east abutment. 

  • Repairing of the south bridge median barrier.

  • Placement of 1 ¼’ of latex modified concrete overlay on the bridge deck between piers 6 and 7, span 7 on the north bridge on a prepared surface.

  • Cleaning and wetting burlap, removing Bidwell barrier brackets and screed rails from span 7 and installation on span 5 (work performed from 2:00pm – 10:00pm).

  • Assembling and installation of formwork at the bases of the historic railing between spans 13 and 14 for the future placement of grout and light-weight concrete.

Sunday, March 29, 2020 – Saturday, April 4, 2020
(Phase 2 Activity):
  • Chipping of armor joint at pier 12 on the north bridge.

  • String lining and saw cutting of the edge of the strip seal joint (15” each edge from pier 1).

  • Drilling for the historical bridge anchor bolts at the west abutment and span 1, 4, 5, 9 and 10.

  • Forming of the backwall at the west abutment for armored joint.

  • Assembling of the Bidwell concrete paver for the upcoming concrete overlay. 

  • Removal of the existing armored joints from piers 12 on the north bridge.

  • Relocation of the barge at piers 5 – 9.

  • Demolition of the sidewalk pavement at the west abutment.

  • Installation of the metallic forms for the single-face barrier wall at the east abutment.

  • Installation of the forms for the half face barrier at the west abutment. 

STAY IN THE KNOW AND PLAN YOUR COMMUTE! 

Everything you need to know about DDOT I-295 construction projects in Washington DC

© 2020 DDOT