For additional information on the current situation, please visit the alerts page. FDOT Emergency Travel Alert: For information on the current situation, please visit the following page - Alerts.

Florida Department of
TRANSPORTATION
Safety, Innovation, Mobility, Attract, Retain & Train

Travel Updates Related to COVID-19 - Alerts  |  To renew a Florida driver license, ID card, tag, or title, visit GoRenew.com

Florida Department of
TRANSPORTATION
Safety, Innovation, Mobility, Attract, Retain & Train
State Road A1A/State Road 200 DDI I-95 Reconstruction Project
Overview

The Florida Department of Transportation (FDOT) began construction in January 2017 on the area’s first Diverging Diamond Interchange (DDI) at Interstate 95 in Nassau County. 

This project consists of widening the roadway from 4 lanes to 6 lanes with raised medians, curb & gutter, sidewalks and bicycle lanes (2 miles). This project will also include the addition of a new Diverging Diamond Interchange (DDI)* under I-95 at A1A Exit 373 (to Callahan/Yulee/Fernandina Beach/Amelia Island). The project began construction in January, 2017, and is expected to be completed by summer 2020.

Diverging Diamond Interchange (DDI)
 

A diverging diamond interchange (DDI) is a type of interchange where the two directions of traffic below I-95 briefly drive on the opposite side of the road. This will be a significant improvement in safety, since long left turns crossing traffic lanes to enter or exit the Interstate will be eliminated. Additionally, the DDI promotes added efficiency with only two clearance intervals (the time for traffic signals to change from green to yellow to red) instead of the six or more found in other interchange designs.

 

VIDEOS

3D Animation of a DDI
A DDI for pedestrians and bicyclists
Educational DDI video for Nassau County
Diamond Interchange vs DDI
Traffic Impacts
State Road A1A traffic impacts
September 12-18, 2020

Nighttime lane closures from Peeples Road to Felmor Road Friday from 9 p.m. to 6 a.m. to remove barrier walls.

State Road A1A traffic impacts
September 12-18, 2020

Nighttime lane closures from Harry Green Road to I-95 Monday through Thursday from 9 p.m. to 6 a.m. for road work.

State Road A1A traffic impacts
September 12-18, 2020

Nighttime lane closures at Arrigo Boulevard Monday, Wednesday and Friday from 9 p.m. to 6 a.m. for road work.

State Road A1A traffic impacts
September 12-18, 2020

Daytime southbound lane closure at Chester Road Saturday from 7 a.m. to 5 p.m. for road work.

State Road A1A traffic impacts
September 12-18, 2020

Daytime eastbound lane closure from Chester Road to Flora Park Crossing Saturday from 7 a.m. to 5 p.m. for road work.

Project Photos
No photos at this time.
No Events at this time.
Project Details
Project Start:January 17, 2017
Expected Completion:Fall 2020
Cost:$41 million
Project #:210712-4
RoadsState Road 200, State Road A1A
CountiesNassau
CitiesYulee
Contact
Photo of Hampton RayHampton Ray
386-269-3607
State Road A1A/State Road 200 DDI I-95 Reconstruction Project
Overview

The Florida Department of Transportation (FDOT) began construction in January 2017 on the area’s first Diverging Diamond Interchange (DDI) at Interstate 95 in Nassau County. 

This project consists of widening the roadway from 4 lanes to 6 lanes with raised medians, curb & gutter, sidewalks and bicycle lanes (2 miles). This project will also include the addition of a new Diverging Diamond Interchange (DDI)* under I-95 at A1A Exit 373 (to Callahan/Yulee/Fernandina Beach/Amelia Island). The project began construction in January, 2017, and is expected to be completed by summer 2020.

Diverging Diamond Interchange (DDI)
 

A diverging diamond interchange (DDI) is a type of interchange where the two directions of traffic below I-95 briefly drive on the opposite side of the road. This will be a significant improvement in safety, since long left turns crossing traffic lanes to enter or exit the Interstate will be eliminated. Additionally, the DDI promotes added efficiency with only two clearance intervals (the time for traffic signals to change from green to yellow to red) instead of the six or more found in other interchange designs.

 

VIDEOS

3D Animation of a DDI
A DDI for pedestrians and bicyclists
Educational DDI video for Nassau County
Diamond Interchange vs DDI
Project Details
Project Start:January 17, 2017
Expected Completion:Fall 2020
Cost:$41 million
Project #:210712-4
RoadsState Road 200, State Road A1A
CountiesNassau
CitiesYulee
Contact
Photo of Hampton RayHampton Ray
386-269-3607
Traffic Impacts
State Road A1A traffic impacts
September 12-18, 2020

Nighttime lane closures from Peeples Road to Felmor Road Friday from 9 p.m. to 6 a.m. to remove barrier walls.

State Road A1A traffic impacts
September 12-18, 2020

Nighttime lane closures from Harry Green Road to I-95 Monday through Thursday from 9 p.m. to 6 a.m. for road work.

State Road A1A traffic impacts
September 12-18, 2020

Nighttime lane closures at Arrigo Boulevard Monday, Wednesday and Friday from 9 p.m. to 6 a.m. for road work.

State Road A1A traffic impacts
September 12-18, 2020

Daytime southbound lane closure at Chester Road Saturday from 7 a.m. to 5 p.m. for road work.

State Road A1A traffic impacts
September 12-18, 2020

Daytime eastbound lane closure from Chester Road to Flora Park Crossing Saturday from 7 a.m. to 5 p.m. for road work.

 
Link to FDOT's Facebook page (opens new browser window) Link to FDOT's Twitter page (opens new browser window) Link to FDOT's YouTube page (opens new browser window) Link to FDOT's Wordpress page (opens new browser window) Link to FDOT's Multimedia page (opens new browser window) Link to FDOT's RSS page (opens new browser window)

Florida Department of Transportation

Consistent, Predictable, Repeatable