State Road 21 South - Orange Park to Middleburg

South

Orange Park Northway encircles Orange Park Mall east from SR 21 (Blanding Boulevard).
10/16/22

Shifting southwest through the unincorporated area of Bellair-Meadowbrook Terrace, the succeeding traffic light on SR 21 (Blanding Boulevard) south is at Parkwood Drive (CR 1162).
10/16/22

10/16/22

Edson Drive stems east from Blanding Boulevard to W.E. Cherry Elementary School.
10/16/22

Blairmore Boulevard ties into SR 21 from the Bellair West neighborhood.
10/16/22

SR 224 stems east from SR 21 (Blanding Boulevard) along Kingsley Avenue.
10/16/22

This shield for SR 224 is premature, as the ensuing intersection is with Spencer Road, not Kingsley Avenue.
10/16/22

SR 224 leads 2.78 miles east to U.S. 17 (Park Avenue) in the town of Orange Park.
10/16/22

10/16/22

10/16/22

Passing Orange Park High School, the next traffic light on SR 21 (Blanding Boulevard) south is at Constitution Drive west and Belmont Boulevard east.
10/16/22

Suzanne Avenue stems south from Blanding Boulevard through the unincorporated community of Lakeside to Doctors Lake Drive (CR 1181) off Doctors Lake.
10/16/22

Reassurance marker posted south at Robin Road.
10/16/22

Constitution Drive returns to SR 21 (Blanding Boulevard) from the Heritage Hills neighborhood at Bolton Road.
10/16/22

10/16/22

Foxridge Road is the main entrance into the Foxridge development northwest of Blanding Boulevard.
10/16/22

10/16/22

10/16/22

10/16/22

County Road 21B comprises a loop along local streets northwest from SR 21 to the unincorporated Ridgewood community.
10/16/22

CR 21B lines Cleveland Avenue northwest, Washington Avenue southwest and Taylor Avenue southeast.
10/16/22

10/16/22

County Road 224 (College Drive) heads 2.63 miles south from SR 21 at Lakeside to CR 220 at Doctors Inlet.
10/16/22

10/16/22

10/16/22

The shield assembly for CR 21B at Taylor Avenue incorrect points to the strip mall across Blanding Boulevard and has since at least 2015.
10/16/22

10/16/22

10/16/22

SR 21 (Blanding Road) meets CR 220B (Knight Boxx Road) south across from Oak Lane north.
10/16/22

CR 220B (Knight Boxx Road) south connects SR 21 (Blanding Boulevard) with CR 220 in 1.21 miles.
10/16/22

07/28/18

The branch of CR 220A along Old Jennings Road ties into SR 21 (Blanding Boulevard) across from Henley Road to the Mayfield development.
10/16/22

CR 220A spurs 4.2 miles west along Old Jennings Road. A second branch of CR 220A lines Long Bay Road south from Old Jennings Road to CR 220. Henley Road south at SR 21 was previously referenced as CR 209.
10/16/22

10/16/22

Coppergate Drive from the Coppergate development intersects Blanding Boulevard across from big box retail.
10/16/22

Brannan Field Road, the former alignment of SR 23, parallels the First Coast Expressway north from SR 21 to Oakleaf Plantation Parkway. Baxley Road (CR 220A) extends 0.51 miles south from this traffic light to CR 220.
10/16/22

SR 23 (First Coast Expressway) travels 16.27 miles north from SR 21 (Blanding Boulevard) to Interstate 10 and U.S. 90 (Beaver Street) in west Jacksonville.
10/16/22

A six-ramp parclo interchange joins SR 21 (Blanding Boulevard) with SR 23 (First Coast Expressway).
08/12/25

A distributor roadway to the entrance ramps for the First Coast Expressway separates from SR 21 (Blanding Boulevard) southbound ahead of the signalized intersection with the exit ramp from SR 23 north.
08/12/25

The tolled First Coast Expressway opened to traffic north from SR 21 to Argyle Forest Boulevard in July 2018.
08/12/25

Segment 2 of the First Coast Expressway lengthened the toll road southeast from SR 21 to U.S. 17 south of Green Cove Springs. Work got underway on the two phase project in 2019 and SR 23 opened south from SR 21 on August 9, 2025.
08/12/25

The city of Keystone Heights lies 26 miles southwest of the exchange joining SR 21 (Blanding Boulevard) with SR 23 (First Coast Expressway).
08/12/25

CR 220 runs west from U.S. 17 at Fleming Island to Doctors Inlet and SR 21 (Blanding Boulevard) in Middleburg. The 10.95 mile long branch also loops west from SR 21 to CR 220A (Long Bay Road) and south back to SR 21 near the North Fork of Black Creek.
08/12/25

Part of a $19.1 million widening and reconstruction project¹ along SR 21 from Allie Murry Road to CR 220 on Long Bay Road, CR 220 was realigned at Blanding Boulevard to eliminate an intersection with an acute angle.
08/12/25

Making CR 220 a discontinuous route eastbound, a second signalized intersection was added to SR 21 at CR 220 west as part of the widening project.
08/12/25

CR 220 west overtakes Long Bay Road south from CR 220A in 0.4 miles.
08/12/25

Construction widening SR 21 to six lanes started in January 2019. Work was originally anticipated for completion by Spring 2021, which was later amended to Summer 2022.¹
08/12/25

The shield for CR 220 south ahead of Long Bay Road was not replaced during widening of SR 21 (Blanding Boulevard). Inventoried by FDOT GIS as CR 220, signs on CR 220 west at Long Bay Road reference the route south to SR 21 as CR 220A.
07/28/18

Long Bay Road (CR 220A) was realigned to a new signalized intersection with SR 21 by 2021.
08/12/25

Continuing south through Middleburg, SR 21 spans the North Fork of Black Creek beyond Long Bay Road.
08/12/25

A commercialized stretch commences south along SR 21 through Middleburg at Palmetto Street.
08/12/25

Everett Avenue west from SR 21 is part of a 2.66 mile long loop for County Road 220.
08/12/25

Traffic lights were added along SR 21 at Parsonage Street and Middleburg Village Center in 2022.
08/12/25

SR 21 (Blanding Boulevard) next meets CR 218, a 20.39 mile long highway south to SR 16 at Penney Farms and northwest to U.S. 301 between Highland and Maxville.
08/12/25

A separate $16.4 million widening project further expanded SR 21 (Blanding Boulevard) from four to six lanes between the North Fork of Black Creek and the intersection with CR 218. Work started in February 2020 and continued to late 2022.²
08/12/25

08/12/25

08/12/25

References:

1. Blanding Boulevard (SR 21) Widening and Reconstruction From Allie Murray Road to Long Bay Road (CR 220A). Florida Department of Transportation (FDOT), project web page. https://nflroads.com/ProjectDetails.aspx?p=5173
2. State Road 21 from CR-218 to Black Creek Improvements. Florida Department of Transportation (FDOT), project web page. https://nflroads.com/ProjectDetails.aspx?p=5118

Connect with:

State Road 23 - First Coast Expressway

State Road 224 - Kingsley Avenue

Clay County Road 218

Page Updated Wednesday August 13, 2025.