FDOT is also studying auxiliary lanes on I-75 between SR 681 and the Clark Road interchange.
The I-75 portion of the study runs approximately 6.24 miles from south of SR 681 to south of Clark Road. The study also includes approximately 1.5 miles of SR 681 toward Lorraine Road.
What this means for drivers
An auxiliary lane is different from simply turning the entire interstate into another through lane.
For example:
3 through lanes
auxiliary lane
can allow vehicles entering I-75 at one interchange to travel in the auxiliary lane while vehicles preparing to exit use that same lane to move toward the exit.
This can reduce the amount of merging directly into the primary through lanes.
FDOT says the project is intended to improve mobility and accommodate travel demand generated by approved development in the area.
Important
There is currently no confirmed construction cost or construction start date for the SR 681 project.
It remains in the PD&E phase.
CLARK ROAD: THE MODEL FOR WHAT IS COMING
I-75 / Clark Road Interchange
FDOT Project: 201277-3
Construction cost: $52.6 million
Status: Completed
The Clark Road project provides a preview of the type of interchange improvements motorists will see elsewhere.
The interchange was reconstructed as a Diverging Diamond Interchange.
FDOT also added auxiliary lanes on I-75.
Where were the auxiliary lanes added?
Northbound I-75:
A 12-foot auxiliary lane was added between Clark Road and Bee Ridge Road.
Southbound I-75:
A 12-foot auxiliary lane was added between Proctor Road and Clark Road.
The I-75 bridges over Clark Road remain at three lanes in each direction.
So Clark Road did not become a four-through-lane I-75 corridor.
Instead, the project used auxiliary lanes around the interchange to improve the movement of entering and exiting traffic.
2027–2029: THE BEE RIDGE PROJECT
I-75 from South of Bee Ridge Road to South of Fruitville Road
FDOT Project: 201277-5
Length: 3.8 miles
Estimated construction cost: $115 million
Current status: Future/design project
This is one of the biggest future I-75 capacity projects in Sarasota.
FDOT plans to widen approximately 3.8 miles of I-75 from south of Bee Ridge Road to south of Fruitville Road.
The interim configuration
The project calls for an eight-lane highway:
3 through lanes + 1 auxiliary lane northbound
and
3 through lanes + 1 auxiliary lane southbound.
The additional auxiliary lanes are to be placed in the interstate median.
That means this section would operate with:
NORTHBOUND
Lane 1 | Lane 2 | Lane 3 | Auxiliary Lane
SOUTHBOUND
Auxiliary Lane | Lane 3 | Lane 2 | Lane 1
The auxiliary lane is designed to handle traffic entering and exiting I-75 around the interchanges.
THE BEE RIDGE INTERCHANGE WILL ALSO CHANGE
The Bee Ridge interchange will be rebuilt as a hybrid Diverging Diamond Interchange.
A southbound diversion ramp will also be constructed.
FDOT says the diversion ramp will eliminate a weaving problem between the I-75 interchange and the Bee Ridge Road/Cattlemen Road intersection.
The Bee Ridge/Cattlemen Road intersection will also be reconstructed as a Continuous Flow Intersection.
The project includes:
- Replacement of I-75 bridges over Bee Ridge Road
- Widening of I-75 bridges over Palmer Boulevard
- Widening of the I-75 bridge over Phillippi Creek
- Approximately one mile of improvements on Bee Ridge Road
THE BIGGER PLAN: 12 LANES AT BEE RIDGE
This is where Sarasota’s I-75 future becomes substantially larger.
FDOT says the Bee Ridge project has an ultimate future design that would expand the interim eight-lane section to 12 lanes.
The ultimate configuration would be:
2 express lanes
3 general-use lanes
1 auxiliary lane
in each direction.
That would mean:
NORTHBOUND
2 Express + 3 General Use + 1 Auxiliary = 6 lanes
SOUTHBOUND
1 Auxiliary + 3 General Use + 2 Express = 6 lanes
TOTAL
12 lanes
FDOT says these ultimate improvements are intended to extend acceptable levels of service on I-75 well beyond 2050.
This 12-lane configuration should not be confused with the currently funded construction project. It is an ultimate future concept.
2030–2035: WHAT HAPPENS NEXT?
This is where it is important to separate FDOT’s long-range planning from projects that have actually been scheduled for construction.
FDOT’s Southwest Connect I-75 North Corridor study covers approximately 40 miles from south of River Road in Sarasota County through the Sarasota-Bradenton corridor to north of Moccasin Wallow Road in Manatee County.
The study has evaluated future strategies including:
- Additional widening
- Managed lanes
- Interchange modifications
- Potential new interchanges
- Future capacity improvements
The purpose is to identify future needs and prioritize projects as traffic demand increases.
What is NOT currently known
FDOT has not published a construction schedule through 2035 for all of the potential future I-75 widening and managed-lane projects.
Therefore, it would be misleading to say that Sarasota is guaranteed to receive a specific number of additional I-75 lanes in 2030, 2032 or 2035.
Instead, the current picture is:
2026
Fruitville: construction underway
River Road: construction underway
SR 681: PD&E study
Bee Ridge: future/design phase
River Road–SR 681: I-75 resurfacing in design
2027
River Road: expected completion
SR 681: PD&E study expected to conclude
Fruitville: construction continues
Bee Ridge: future project unless FDOT advances construction
2028
Fruitville: construction continues
Bee Ridge: potential future construction subject to funding and project advancement
SR 681: future construction subject to completion of PD&E, design and funding
2029
Fruitville: current FDOT schedule calls for completion in early 2029
Bee Ridge/SR 681: future capacity projects remain dependent on FDOT programming and funding
2030–2035
Long-range I-75 expansion: additional widening, auxiliary lanes and/or managed lanes may advance as individual projects are funded and developed.
There is currently no FDOT-published project-by-project construction schedule that guarantees those improvements for specific years between 2030 and 2035.
HOW THE NEW LANES FIT TOGETHER
The simplest way to understand the Sarasota I-75 plan is to look at it from south to north.
RIVER ROAD
US 41 → I-75
Six lanes:
3 + 3
This increases the amount of traffic that can reach I-75.
↓
SR 681
Future full interchange
Potential auxiliary lanes:
SR 681 → Clark Road
This is still being studied.
↓
CLARK ROAD
Completed DDI.
Auxiliary lane:
Northbound Clark → Bee Ridge
Auxiliary lane:
Southbound Proctor → Clark
↓
BEE RIDGE
Future I-75 widening:
3 through + 1 auxiliary each direction
↓
FRUITVILLE
Current construction:
3 through lanes each direction
plus the rebuilt Fruitville interchange.
↓
FUTURE ULTIMATE BEE RIDGE CORRIDOR
Potential:
2 express + 3 general-use + 1 auxiliary each direction
for a total of 12 lanes.
WHY AUXILIARY LANES MATTER
One of the most important changes motorists may notice is that FDOT is not relying exclusively on conventional lane widening.
An auxiliary lane is essentially a lane designed to help traffic enter and exit the interstate without forcing every vehicle to immediately merge into the mainline.
Consider a section with three through lanes.
Without an auxiliary lane:
I-75 → 3 lanes → entrance traffic merges → exit traffic merges → 3 lanes
With an auxiliary lane:
I-75 → 3 through lanes + auxiliary lane → entrance/exit traffic uses additional lane
The objective is to separate some of the entering and exiting traffic from the primary through traffic.
This becomes particularly valuable where interchanges are relatively close together.
THE DIVERGING DIAMOND STRATEGY
Sarasota is also becoming a showcase for another traffic-engineering strategy: the Diverging Diamond Interchange.
The concept is already operating at Clark Road.
It is being constructed at Fruitville Road.
And a hybrid version is planned for Bee Ridge.
A DDI temporarily shifts traffic to the opposite side of the roadway as motorists pass through the interchange.
The result is fewer traditional left-turn conflicts and fewer signal phases.
At Fruitville, FDOT specifically says the DDI is intended to reduce delay, reduce conflict points and accommodate future traffic growth.
WHAT DRIVERS COULD SEE BY THE EARLY 2030s
If the projects currently identified by FDOT advance according to their respective plans and funding schedules, Sarasota’s I-75 corridor will have substantially more capacity around several of its most heavily traveled interchanges.
The most immediate changes are:
Fruitville Road:
A completely rebuilt interchange and three I-75 through lanes in each direction.
Bee Ridge Road:
A future eight-lane I-75 configuration with three through lanes and one auxiliary lane in each direction.
Clark Road:
A completed DDI and auxiliary lanes connecting the interchange toward Bee Ridge and Proctor Road.
SR 681:
A potential full interchange and auxiliary lanes connecting SR 681 toward Clark Road.
River Road:
Six lanes from US 41 to I-75.
THE BOTTOM LINE
Sarasota’s I-75 corridor isn’t being changed by one massive construction project.
It is being changed interchange by interchange and segment by segment.
The most immediate major investment is the $177.4 million Fruitville Road/I-75 project, scheduled for completion in early 2029.
The $47.5 million River Road project is scheduled for completion in early 2027 and will create six lanes from US 41 to I-75.
The next major I-75 capacity step is the $115 million estimated Bee Ridge-to-Fruitville project, which calls for three through lanes plus an auxiliary lane in each direction.
And farther south, FDOT is studying the transformation of SR 681 into a full I-75 interchange and the addition of auxiliary lanes between SR 681 and Clark Road.
Beyond those projects, FDOT’s 40-mile Southwest Connect corridor planning effort provides the framework for potentially much larger I-75 improvements, including additional widening and managed lanes.
For Sarasota drivers, the important point is simple:
I-75 is moving toward a future in which more traffic will have more lanes to use, entering and exiting traffic will have more room to merge, and major interchanges will be redesigned to move vehicles more efficiently.
But the ultimate 2030–2035 configuration is not yet fully funded or scheduled. The exact timing of the larger future improvements will depend on FDOT’s project development, environmental approvals, right-of-way needs and funding decisions.
