Duck Key Bridge Updates

Bimini Bridge Canal: AEB is scheduled to move a barge into the canal beneath the Bimini Drive Bridge on Thursday, Jan. 19 to begin Phase II demolition of the north lane of the bridge. Please be advised that the canal will be closed at the Bimini Drive Bridge as of that date.

1/13/23 Update: American Empire Builders (AEB) moved the barricades and traffic signals to implement the Phase II traffic control plan on Tuesday, Jan. 10; the contractor has begun clearing and grubbing on the north side of the Bimini Bridge and has started demolition of the deck approach roads. FKAA personnel are scheduled to be onsite Saturday, Jan. 14, to remove their pipes from the north side of the bridge. AEB and FKAA are coordinating so that FKAA can remove additional subsurface piping as AEB performs demolition and excavation of the bridge approaches on the north side.

AT&T and Comcast are scheduled to be onsite next week to pull their lines through the conduit installed on the bridge’s west side and make final connections on the west side. Once complete, FKEC will remove the utility pole adjacent to the bridge’s north side.

The pre-construction meeting for the Seaview Drive Bridge project was held on Jan. 10; a notice to proceed effective Jan. 16 was issued to the contractor. Substantial completion of the project is scheduled for July 9, 2024, 540 days after the commencement date.

The contractor’s surveyor will be onsite performing the baseline survey. AEB will contact adjacent property owners over the next week to obtain access to the property to perform the initial conditions survey and the baseline settlement monitoring survey that is required per the contract specifications. The contractor will mobilize to the site to begin Phase I of the project soon after completing the survey.

A task order for engineering design and permitting services for repairs to the Tom’s Harbor Channel Bridge that connects Duck Key to U.S. 1 is on the January BOCC agenda for approval. The construction phase, which is anticipated to consist primarily of repairs to spalling concrete and rebar in the superstructure and substructure of the bridge, is tentatively scheduled for late 2024.

1/6/23 Update: Bimini Bridge Phase II Traffic Plan: AEB’s maintenance of traffic subcontractor is scheduled to be on site at the Bimini Drive Bridge on Tuesday, Jan. 10 to relocate barricades and traffic control equipment for the commencement of phase II of the project.  

The phase II traffic plan opens access to Corsair Road and Harbor Drive, so vehicles traveling west will cross the Bimini Bridge and be able to continue left onto Schooner Drive, straight onto Corsair Road or right onto Harbor Drive.

The east bound traffic will be routed to Corsair Road where a traffic signal will control traffic from Corsair Road and Harbor Drive. Schooner Drive will be closed to eastbound traffic between Schooner Lane and Bimini Drive; eastbound vehicles from Plantation and Yacht Club Islands will be routed onto Schooner Lane and around to Corsair Road to cross the bridge. 

Drawing of bridge project


12/16/2022 Update: American Empire Builders (AEB) completed the traffic railing on the west side of the bridge and placed, compacted, and tested the fill on both approaches to prepare for paving. The stormwater swale on the east side is complete, and the contractor will construct the swale on the west side. Comcast completed the installation of its conduits through the project site to the west side of the bridge. The contractor is coordinating with the paving company to schedule the roadway paving next week and is awaiting confirmation of whether or not they will mobilize to the site to perform the work before the holiday.

After the paving is complete, the Phase I work will be finished, and the contractor will open the south lane and switch traffic to it. There will be a new maintenance of traffic plan for Phase II of the work, which will be posted in advance of the switch. The current schedule indicates that the project will be fully complete by fall 2023.

Contracts for the construction of the Seaview Drive Bridge and the inspection and oversight (CEI services) were approved by the Monroe County Board of County Commissioners. The County received one construction bid from American Empire Builders for $5,260,000. The pre-construction meeting for the Seaview Project will be conducted the second week of January, and the contractor will mobilize to the site after that.

The County is preparing a task order for engineering design and permitting services for repairs to the Tom’s Harbor Channel Bridge that connects Duck Key to U.S. 1. The construction phase, which is anticipated to consist primarily of repairs to spalling concrete and rebar in superstructure and substructure of the bridge, is tentatively scheduled for late 2024.

12/8/2022 Update: American Empire Builders (AEB) completed forming and pouring the concrete moment slab along the west bridge approach this week and anticipates forming and pouring the remaining barrier railing this week. The contractor will continue placing additional fill to finish the west approach roadway, and is constructing the stormwater swale on the southeast side of the bridge.

Comcast is on-site today to complete conduit installation on the west side of the bridge.  

The contractor is coordinating with the paving company to schedule the roadway paving in the next few weeks. The current schedule indicates Phase I will be complete and the traffic switched over before the end of the year, and full completion of the bridge by fall 2023.

Contracts for the construction of the Seaview Drive Bridge and the inspection and oversight (CEI services) were approved by the Monroe County Board of County Commissioners at the Nov. 15 meeting. The County received one construction bid from American Empire Builders for $5,260,000.

11/18/2022 Update: American Empire Builders (AEB) completed placing and compacting the fill for the west approach roadway up to the bottom of the junction slab and constructed the concrete cap on the MSE wall on the west side of the bridge. The contractor trenched and connected 25 feet of utility conduit to the bridge beams to expedite the construction of the approach slabs. AT&T and Comcast will complete the conduit installation and pull their cables after AEB completes the junction slabs and the installation of the remaining subgrade. AEB completed the concrete placement in the approach slab on Nov. 17.   

AEB is assembling the reinforcing steel and the forms for the concrete barrier wall and junction slab along the outer edge of the lane on the west side in anticipation of concrete placement over the next two weeks.

The contractor is coordinating with the paving company to schedule the roadway paving after the concrete and subgrade work is completed. The current schedule indicates Phase I will be complete and the traffic switched over before the end of the year, and full completion of the bridge by fall 2023.

Contracts for the construction of the Seaview Drive Bridge and the inspection and oversight (CEI services) were approved by the Monroe County Board of County Commissioners at the Nov. 15 meeting. The County received one construction bid from American Empire Builders for $5,260,000.

11/4/2022 Update: American Empire Builders (AEB) completed the concrete barrier wall on the east approach and the bridge railing across the bridge deck on Oct. 25. The contractor is continuing to construct the MSE wall on the west side and placing and compacting the fill. He anticipates completing the fill this week or early next week. After the fill work is complete, the contractor will be forming and pouring the concrete cap on the MSE wall and outer edge of the approach roadway on the west side. He will also begin forming the swales on the shoulder on the east end of the bridge.

Bimini Bridge railing concrete pour looking from the bridge to the concrete railing

Comcast has completed the installation of its conduit on the east side of the bridge. AEB is coordinating with Comcast for the installation of conduit in the approach roadway on the west side and anticipates having Comcast perform that installation in approximately three weeks. AEB will form and pour the concrete approach slab on the west side after the conduit installation.

AEB has submitted the asphalt mix designs for the roadway to the Engineer of Record and received approval. He is coordinating with General Asphalt to perform the paving on both sides of the bridge upon completion of the west side. The current schedule indicates Phase I will be complete and the traffic switched over before the end of the year, and full completion of the bridge by fall 2023.

Contracts for the Seaview Drive Bridge construction and the inspection and oversight (CEI services) are on the Monroe County Board of County Commissioners Nov. 15 meeting agenda for approval. The County received one construction bid from American Empire Builders for $5,260,000.

Utility Relocation - FKEC Work Status

 For questions, contact: Michael J Roberge, Director of Engineering, Florida Keys Electric Cooperative, Office: 305-852-1034, Cell: 231-675-8500.

The Florida Department of Transportation (FDOT) inspectors advised that three interior Duck Key bridges that affect Harbour Island, Plantation Island, and Yacht Club Island need to be replaced.

Weight Restrictions

As of Nov. 18, 2021, there are no weight restrictions on any of the Duck Key bridges. Florida Legal loads can cross all bridges on Duck Key.

Marine Traffic Update: Bimini Bridge

The contractor has secured construction barges underneath the Bimini Drive Bridge. The barges will remain in place for the duration of the project and will block all marine traffic underneath the bridge until the anticipated project completion. The contact person for the Construction Engineering and Inspection (CEI) consultant for this project can be submitted to keith.duke@wsp.com.

Timeline

The date is subject to change and will be updated accordingly.

The design team has finalized the construction plans for the bridge strengthening at Bimini Bridge and is in the design phases for the temporary strengthening of Harbor and Seaview bridges. The design team has already begun coordinating with the Coast Guard for approval since the installation of beams will reduce the clearance under those bridges. The completed bridges will be at the same height as the original bridges. 

Permits

Active unexpired building permits affected by the weight limits on Bimini, Seaview, and Harbour Drive bridges will not be required to get inspections until 180 days after a solution for delivery of materials is available. If someone with an open permit is able to proceed by other means before that time, they may do so.

Garbage Service Updates

Garbage service is not affected by bridgework.

Background

The Bimini Bridge, constructed in 1955, was already scheduled for replacement. County staff accelerated the bidding process for the Bimini Bridge with an estimated contract period to complete the replacement is 18 months. The County approved a strengthening plan for the existing north lane of the Bimini Bridge. This will allow one lane of traffic to cross while the south side of the permanent bridge is being constructed. The strengthened section will allow Florida legal weight limits to cross without a reduced weight load. Bimini Bridge affects Harbour, Plantation, and Yacht Club islands and also connects to the Harbour Drive and Seaview bridges.