CONSTRUCTION

SOUTH SIDE OF THE NEW BRIDGE

• March 2024: Southwest MSE wall construction continues and pile driving to start at B25.
• 3/19/24: Spans 22-24 closure placed.
• 3/7/24: First decks placed for spans 22-24. 
• 2/24/24: Set girders in spans 22-25 and start deck work with first deck placement for spans 22-24 scheduled for first week of March.
• 1/17/24: Drive pile bents 21-24 completed and continue to place bent caps 21-24. Started setting girders in late January. Continuing Tex-Cote of substructure and superstructure.
• 12/20/23: Phase 2 traffic switch, with LA 23 southbound rerouted to elevated new bridge.
• 12/15/23: Approach and barrier construction completed.
• 12/13/23: Barrier slipforming completed.
• 12/4/23: South approach milling completed and paving completed.
• November – December 2023: Approach construction and barrier slipforming continues. South approach milling and paving scheduled for week of 11/27/23.
• 11/10/23: Barrier slipforming started.
• 10/14/23: Approach span placed.
• 9/22-23/23: Deck placements for spans 22-26.
• 8/24/23: Girder erection completed.
• 7/21/23: Spans 22-26 PC panel erection and tie-in deck construction started and continues.
• 7/12/23: Setting northbound tie in girders for spans 22-26 started.
• 5/1/23: Deck placement spans 15-16.
• 4/26/23: Pile driving on south side bents 22-25 started.
• 3/4/23: Deck placement spans 17-19.
• 2/25/23: First deck placement, spans 15-21. Setting overhangs began after Labor Day.
• 7/12/22 – 8/19/22: Span 15 through span 21 girders set at spans 26 through 24.
• 5/1/22: Spans 15-16 deck placement.
• 4/26/22: Pile driving on south side bents 22-25 started with bent 24. 
• 3/4/22: Spans 17-19 deck placed.
• 2/25/22: First deck placement. Spans 20-21 completed. 

 

NORTH SIDE OF THE NEW BRIDGE

• March 2024: Set girders in span 2. Working on deck placement for spans 2-3. Northwest MSE wall construction continues and prepping for pile driving at B1 to start.
• 2/21/24: Started deck work with first deck placement of Phase 2 at spans 4-5 completed.
• February 2024: Set girders in spans 4 and 3. Additional work continues at closure pour for spans 4-5 and deck span 3.
• 1/12/24: Started setting girders at bent 5. Tex-Cote of substructure and superstructure continues.
• January 2024: Continue to drive pile bents 2-5 and place caps.
• 12/20/23: Phase 2 traffic switch occurred with LA 23 southbound rerouted to elevated new bridge.
• 12/15/23: Approach and barrier construction completed.
• 12/6/23: North approach milling completed and paving completed.
• 11/14/23: Deck placement at north approach completed.
• 11/1/23: Deck placement at spans 4-5 completed.
• 10/20-21/23: Deck placement at spans 1-3 completed.
• 9/28/23: Girder erection completed.
• 8/7/23: Substructure construction started with bent 5.
•  7/24/23: Pile driving for bents 5-1 started and continues.
• 1/9/23: Deck construction started. 
• 4/10/23: Spans 8-9 placed. 
• 3/30/23: First deck pour (spans 6-7) completed.
• 9/19/22 – 11/4/22: Spans 11-6 girders set,  followed by precast panel installation. Diaphragm and shear key construction continues.

 

WORK IN THE GIWW

• March 2024: Continue painting structural steel during day and night shifts.
• February 2024: Painting structural steel began during day and night shifts.
• January 2024: Painting structural steel to begin during night time lane closures with Tex-Cote of piers 1 and 2 to follow.
• 12/13/23: Barrier slipforming on the main span completed.
• 11/2/23: Barrier slipforming started.
• November – December 2023: Ongoing preparation for painting.
• 5/15/23: Decking started. First main span deck placement completed 6/28/23 and last main span deck placement completed 8/2/23. Barrier rail construction on going.
• 2/24/23: First pair of structural steel girders erected.  Last pair erected 4/19/23. Installation of diaphragms and final bolt up continuing. 
• 11/22/22: Removing cofferdam sheets finished. Template was removed 11/28/22. Column construction started 11/28/22.  P2 Columns placed 12/7/22. P2 Cap placed 1/6/23. Placing P2 risers 1/26/23.

 

ALGIERS OUTFALL CANAL BRIDGE

• Ongoing: Crack repairs and punch list.
• 5/1/23: East barrier placed. Crack repairs and punch list ongoing.
• 4/25/23: Wick drains for the north MSE walls were completed and MSE wall installation followed.
• 4/13/2023: Traffic shift to Phase 1C occurred. Excavation, subbase and base work is ongoing for Phase 1C east of LA 23.
• 4/4/23: Phase 1B pavement began and continues as LA 23 Spur Track is removed. Paving after Spur Track removal.
• 3/20/23: Deck placements started.
• 6/9/22: Cap construction began on the south side and has moved to the north side. Decks have been completed.  Approach work and barriers finished up in November.

 

LA 23 ROADWAY NORTH OF THE GIWW & ENGINEERS ROAD

• March 2024: Northwest MSE wall construction continues. Engineers Road drainage continues while Engineers Road right turn construction continues.
• 2/21/24: NW MSE wall Phase A installation completed.
• 2/6/24: Drainage at LA 23/Engineers Road intersection completed.
• 2/5/24: Wick drains completed.
• January 2024: Construction of MSE wall and new Engineers Rd. right turn to LA 23 southbound continues.
• 12/20/23: Phase 2 traffic switch occurred with LA 23 southbound rerouted to elevated new bridge.
• 12/13/23: Approach construction and barrier slipforming completed.
• 12/6/23: North approach milling complete and paving completed.
• 12/5/23: Engineers Road grading and milling complete, paving completed including intersections at West X Street and West W Street/Cazalard Road and newly constructed business driveways in these areas.
• December 2023 – January 2024: Drainage work along west side of Engineers Road continues. 
• November 2023: Approach work continues near LA 23-Engineers Road. intersection. Engineers Road widening along south side continues – intersections at West X Street and West W Street/Cazalard Road affected.
• Widening along west side of Engineers Road continues in November.
• 11/20/23: Preparations for Phase 2 in construction servitudes started.
• 11/2/23: North deck spans 4-5 placement made with no lane closures. Stripping forms and north approach work continues.
• October 2023: Engineers Road drainage work to start on south side.
• 10/27 – 10/28/23 or 11/3 – 11/4/2023: LA 23 southbound 7 p.m. Friday – 12 p.m. closures for north deck spans 4-5 placement. Two-way traffic on the bridge during this time.
• 10/20-10/21/23: LA 23 southbound 7 p.m. Friday – 12 p.m. closures for north deck spans 1-3 placement. Two-way traffic on the bridge during this time.
• 9/29/23: Engineers Road traffic switch to north side.
• 9/28/23: Engineers Road drainage and curb and gutter work with asphalt paving during night shift completed.
• 9/27/23: NNE MSE wall started.
• 9/26/23: Phase 1C Mod 2/Phase 1D Mod small lane shift on LA 23 northbound at Engineers Road. 
• Week of 9/18 and 9/25/23: Asphalt paving during night shift, followed by restriping for lane shift.
• 7/28/23: Phase 1D minor shifting of LA 23 southbound lanes (4’-5’) between Engineers Road and Tunnel completed.
• 7/27/23: NE MSE Wall Phase B finished.
• 7/15/23: LA23 X Street crossing closure.
• 7/12/23:  Start Up of Burmaster/LA 23 intersection traffic signals, opening of Burmaster Bulbout and closure of left turn onto Engineers Road from LA 23 northbound.
• 7/7/23: LA23 NB 1C Mod 2 traffic lane switch.
• 6/20/23: NE MSE Wall Phase B started. Drainage and driveway work continued through August.
• 4/26/23: MSE wall installation started.
• 4/25/23: North MSE wall excavation and wick drains for the North MSE walls were completed.
• 4/14/23: North MSE walls started.
• 4/13/23: Phase 1C traffic shift occurred. 
• 3/15/23: Northbound Phase 1D traffic switch occurred.
• 1/20/23: Phase 1B drainage and roadwork in the median started.
• 1/11/23: Phase 1A paving started. 
• 10/10/22: Phase 1A drainage construction completed, and roadway work started.
• 8/10/22: Traffic shift for LA 23 southbound lanes completed.

 

LA 23 ROADWAY SOUTH OF THE GIWW

• March 2024: Southwest MSE wall construction continues.
• 2/10/24: SW MSE wall Phase A installation completed.
• January 2024: Construction of MSE wall and toll gantry continues.
• 1/23/24: Wick drain installation completed.
• 1/25/24: Toll gantry set.
• December 2023: Construction at Dr. Bowen continues with one-way traffic. Traffic switches between one lane and another as construction progresses. Incidental concrete paving continues along Dr. Bowen.  Local traffic affected as well as newly constructed business driveways along Dr. Bowen. Entergy relocating utilities and utility services along Dr. Bowen, Covert Road and LA23 southbound.
• 12/20/23: Phase 2 traffic switch occurred and LA23 southbound was rerouted to elevated new bridge.
• 12/11/23: Roadway paving completed. 
• 12/4/23: South approach milling completed and paving completed.
• 3/20/23: Excavation and construction of south MSE Walls started.12/19/22: Excavation and base work for detour road paving started. 
• 3/1/23: Phase 1D southbound traffic switch on the south side of the bridge occurred.
• 2/27/23: Asphalt paving complete.

 

LOCAL ROADS

• March 2o24: Dr. Bowen constructed and functional. Incidental concrete to be placed as utilities are finished. Water line repairs at X Street completed. Drainage work starts at X Street at the end of March.
• January 2024: Construction at Dr. Bowen continues and one-way traffic started. Traffic switches between one land and another as construction progresses. Incidental concrete paving, utility work and toll gantry installation continue along Dr. Bowen and along old LA23 southbound. Local traffic utilizing Dr. Bowen cul-de-sac and will be affected by construction in progress. Engineers Road drainage continues along with construction of MSE wall and a new Engineers Road right turn to LA23 southbound. Temporarily, Engineers Road right tur onto LA23. southbound traffic is detoured to Burmaster u-turn.
• 1/18/24: X Street, Plaquemines Parish is performing water line repairs from 9 a.m. to noon. Temporary rock access road installed to facilitate water repairs and subsequent drainage work at X Street and Engineers Road intersection. After water line repairs are complete, residents will continue to use the rock access road from 1/22/24 to 2/9/24.
• 12/20/23: Phase 2 traffic switch occurred and also switched traffic along Engineers Road. West W and West X Streets end at former LA23 southbound because LA23 southbound was rerouted to the elevated new bridge. Dr. Bowen ends at the intersection of the existing LA23 southbound roadway.
• 12/11/23: Roadway paving completed.
• 12/05/23: Engineers Road grading and milling complete, paving completed.
• 8/18/23: Bowen St. water line relocation complete, prepping for one way traffic and cul-de-sac construction in September 2023.
•  8/14/23: Engineers Road closure and detour for drainage crossing completed.
• 2/8/23: Railroad Street reopened.
• 1/18/23: Railroad Street asphalt paving completed. Striping, signing and reopening the road followed Railroad Street extension construction has completed curb and gutter and base installation complete.

 

TUNNEL DECOMMISSIONING 

• 12/20/23: Phase 2 traffic switch occurred and LA23 southbound was rerouted to elevated new bridge. Tunnel permanently closed. 
• 5/20/23: Bike and pedestrian access through the tunnel closed.
• 4/19/23: Preliminary information signs for the closure to pedestrians and cyclists were installed. 

 

UTILITIES

• March: AT&T working to get Plaquemines Parish Government permit and get released back to work. Finalizing Plaquemines Parish water repairs also to continue.
• February: AT&T repairing Plaquemines Parish Government water line damage along east side of LA23 starting 2/21.
• January 2024: Plaquemines Parish water line repairs upcoming near old LA23 and P Street area.
• August 2023 – January 2024: Entergy south side permanent relocation boring started 8/14/23 and continues through January.
• 2/28/23 – 4/25/23: Entergy south side temporary relocations progressed along the east side on LA 23.
• 5/10/23: PPG water line relocation from P Street to Dr. Bowen Street and Barriere Road completed.
• 9/26/22: Atmos completed relocations on north side and finished relocations on south side.
• Entergy, AT&T, and Cox relocations continue along LA 23 and on local cross streets and adjacent streets throughout the project.