Seminole County, FL

177 public highway bridges

Seminole County Bridge Snapshot

Seminole County, Florida contains 177 public highway bridges in the FHWA National Bridge Inventory. Roughly 35.6% are rated “Good,” 14.7% “Fair,” 0.6% “Poor,” and 0.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in FL are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

177

Total Bridges

35.6%

Good

0.6%

Poor

0.6%

Structurally Deficient

Condition Distribution

Good

35.6% (63)

Fair

14.7% (26)

Poor

0.6% (1)

SD

0.6% (1)

All Bridges (177)

Sort:

Lake Mary Blvd WB

Over: I-4

Lake Mary Blvd WB - I-4, Seminole, FL

Built 1992 ADT: 74,466

Lake Mary Blvd. EB

Over: I-4

Lake Mary EB over I-4, Seminole, FL

Built 1992 ADT: 74,466

SR 417 SB 48.3

Over: SANFORD AVE

0.7 MI S OF CR 427, Seminole, FL

Built 1993 ADT: 28,000

SR 417 NB 48.3

Over: SANFORD AVE

0.7 MI S OF CR 427, Seminole, FL

Built 1993 ADT: 28,000

SR 417 SB 49.0

Over: CR 427

0.2MI S OF LAKE MARY BLVD, Seminole, FL

Built 1993 ADT: 22,000

SR 417 NB 49.0

Over: CR 427

0.2MI S OF LAKE MARY BLVD, Seminole, FL

Built 1993 ADT: 22,000

SR 417 SB 49.2

Over: LAKE MARY BLVD

0.2 MI N OF CR 427, Seminole, FL

Built 1993 ADT: 18,400

SR 417 NB 49.2

Over: LAKE MARY BLVD

0.2 MI N OF CR 427, Seminole, FL

Built 1993 ADT: 18,400

SR 417 SB 38.2

Over: SR 426 ALOMA AVE

1.6MI N OF UNIVERSITY BLV, Seminole, FL

Built 1994 ADT: 33,000

SR 417 NB 38.2

Over: SR 426 ALOMA AVE

1.6MI N OF UNIVERSITY BLV, Seminole, FL

Built 1994 ADT: 33,000

SR 417 SB 43.7

Over: SR 434

3 MI NORTH OF SLAVIA RD, Seminole, FL

Built 1993 ADT: 25,000

SR 417 NB 43.7

Over: SR 434

3 MI NORTH OF SLAVIA RD, Seminole, FL

Built 1993 ADT: 22,000

SR 417 SB 40.7

Over: SLAVIA ROAD

0.6 MI S OF RED BUG LK RD, Seminole, FL

Built 1993 ADT: 11,900

SR 417 NB 40.8

Over: SLAVIA ROAD

0.6 MI S OF RED BUG LK RD, Seminole, FL

Built 1993 ADT: 11,900

SR 417 SB 41.4

Over: RED BUG LAKE RD

0.6 MI N OF SLAVIA ROAD, Seminole, FL

Built 1993 ADT: 32,500

SR 417 NB 41.4

Over: RED BUG LAKE RD

0.6 MI N OF SLAVIA ROAD, Seminole, FL

Built 1993 ADT: 32,500

SR 417 SB 42.1

Over: WINTER SPRINGS BLVD

1.4 MI N OF SLAVIA RD, Seminole, FL

Built 1993 ADT: 30,000

SR 417 NB 42.2

Over: WINTER SPRINGS BLVD

1.4 MI N OF SLAVIA RD, Seminole, FL

Built 1993 ADT: 30,000

SR 417 NB 49.9

Over: AIRPORT BLVD

0.9 MI N OF CR 427, Seminole, FL

Built 1993 ADT: 4,800

CR-46A

Over: I-4

CR-46A over I-4, Seminole, FL

Built 1999 ADT: 6,000

Ramp B1 EB

Over: Eastbound C-D

Ramp B1 - Eastbound C-D, Seminole, FL

Built 2002 ADT: 15,000

SR-414

Over: SR-434

SR-414 over SR-434, Seminole, FL

Built 2000 ADT: 45,500

I-4 WB

Over: SR-46

I-4-WB over SR-46, Seminole, FL

Built 2004 ADT: 28,000

I-4 EB

Over: SR-46

I-4 EB over SR-46, Seminole, FL

Built 2003 ADT: 33,500

I-4 WB

Over: Orange Blvd & CSXRR

I-4WB-Orange Blvd & CSXRR, Seminole, FL

Built 2003 ADT: 15,000

I-4 EB

Over: Orange Blvd.& CSX RR.

I-4EB - Orange Blvd & RR, Seminole, FL

Built 2003 ADT: 15,000

Ramp D1

Over: Orange Blvd & CSXRR

Ramp D1-Orange Blvd&CSXRR, Seminole, FL

Built 2004 ADT: 15,000

I-4 EB Ramp

Over: US-17-92 & Orange Blvd

I-4 EB Ramp to US-17-92, Seminole, FL

Built 2007 ADT: 3,100

SR-436 EB Ramp

Over: Red Bug Road

SR436 Ramp to Red bug Rd., Seminole, FL

Built 2014 ADT: 10,000

US-17/92

Over: SR-436

US-17/92 over SR-436, Seminole, FL

Built 2015 ADT: 45,000

Ramp C1

Over: Ramp A1E

NB SR-417 Ramp To I-4 WB, Seminole, FL

Built 2011 ADT: 1,000

SR-429 SB

Over: Osprey Hammock Trail

.4MI E/O Wekiva River, Seminole, FL

Built 2021 ADT: 1,500

SR-429 EB

Over: Osprey Hammock Trail

Osprey Hammock Trail, Seminole, FL

Built 2021 ADT: 1,500

SR-429 SB

Over: Longwood-Markham Rd

SR-429 SB - Markham Rd, Seminole, FL

Built 2022 ADT: 500

SR-429 EB

Over: Longwood Markham Road

SR-429-Longwood Markham, Seminole, FL

Built 2021 ADT: 1,500

SR-429 SB

Over: Yankee Lake Road

Yankee Lake Road, Seminole, FL

Built 2022 ADT: 500

SR-429 EB

Over: Yankee Lake Road

Yankee Lake Road, Seminole, FL

Built 2021 ADT: 1,500

SR-429 SB

Over: Lake Markham Road

SR-429 SB - Lake Markham, Seminole, FL

Built 2022 ADT: 500

SR-429 NB

Over: Lake Markham Road

Lake Markham Road, Seminole, FL

Built 2022 ADT: 500

SR-429 WB

Over: Glade View Drive

Glade View Drive, Seminole, FL

Built 2022 ADT: 500

SR-429 EB

Over: Glade View Drive

SR-429 EB Over Glade View, Seminole, FL

Built 2014 ADT: 1,500

SR-429 WB

Over: EB Frontage Road

SR-429 WB -Frontage Rd, Seminole, FL

Built 2021 ADT: 1,500

SR-429 SB

Over: CR 431

SR-429 SB Over CR 431, Seminole, FL

Built 2022 ADT: 500

SR-429 EB

Over: CR 431

SR-429 EB over CR 431, Seminole, FL

Built 2021 ADT: 1,500

SR-429 NB

Over: EB Frontage Rd

SR-429 NB, Seminole, FL

Built 2022 ADT: 15,000

Wymore Road

Over: I-4 (SR 400)

1.5mi W of SR 436, Seminole, FL

Built 2018 ADT: 159,000

Central Parkway

Over: I-4 (SR 400)

0.7mi N of SR-436, Seminole, FL

Built 2018 ADT: 130,000

SR-436(Semoran Bl)

Over: I-4

2.0mi N of SR 414, Seminole, FL

Built 2019 ADT: 168,500

I-4

Over: SR-434

2mi E of SR-436, Seminole, FL

Built 2019 ADT: 41,489

SR-429 SB on Ramp

Over: Wilson Road

SR-429 SB Over Wilson Rd, Seminole, FL

Built 2022 ADT: 1,000

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026