Polk County, FL

360 public highway bridges

Polk County Bridge Snapshot

Polk County, Florida contains 360 public highway bridges in the FHWA National Bridge Inventory. Roughly 34.2% are rated “Good,” 40.6% “Fair,” 0% “Poor,” and 0% 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.

360

Total Bridges

34.2%

Good

0%

Poor

0%

Structurally Deficient

Condition Distribution

Good

34.2% (123)

Fair

40.6% (146)

Poor

0% (0)

SD

0% (0)

All Bridges (360)

Sort:

SR-60

Over: ALT. US-27 (SR-17)

1.2 MI EAST OF US-27, Polk, FL

Built 1966 ADT: 5,400

US-92 (SR-600A)

Over: SR-539 (KATHLEEN RD)

0.7 MI S OF I-4 (SR-400), Polk, FL

Built 1953 ADT: 34,500

SR-557A (CR-557)

Over: I-4 (SR-400)

4.0 MI EAST OF SR-559, Polk, FL

Built 1961 ADT: 81,000

SR-33

Over: CR-655

5.7MI N OF I-4 (SR-400), Polk, FL

Built 1949 ADT: 11,800

I-4 WB (SR-400)

Over: CR-582 (SOCRUM LOOP RD)

1.4 MI E OF US-98, Polk, FL

Built 1961 ADT: 26,000

I-4 EB (SR-400)

Over: CR-582 (SOCRUM LOOP RD)

1.4MI E OF US-98, Polk, FL

Built 1961 ADT: 26,000

I-4 WB (SR-400)

Over: SR-33 (LAKELAND HILLS BL

3.4 MI WEST OF SR-570, Polk, FL

Built 1961 ADT: 18,500

I-4 EB (SR-400)

Over: SR-33 (LAKELAND HILLS B

3.4 MI W OF SR-570, Polk, FL

Built 1961 ADT: 13,000

I-4 WB (SR-400)

Over: CR-655 (BERKLEY RD.)

1.3MI E OF SR-570, Polk, FL

Built 1961 ADT: 11,800

I-4 EB (SR-400)

Over: CR-655 (BERKLEY RD.)

1.3MI E OF SR-570, Polk, FL

Built 1961 ADT: 11,800

MAIN ST (CR-542)

Over: SIKES BLVD (SR-563)

0.2MI W OF SR-37, Polk, FL

Built 1975 ADT: 26,500

LEMON ST

Over: SIKES BLVD (SR-563)

0.2 MI WEST OF SR-37, Polk, FL

Built 1975 ADT: 25,500

WEST ORANGE STREET

Over: SR-563

0.2MI W OF SR-37, Polk, FL

Built 1974 ADT: 30,500

US-92 (SR-600)

Over: CSX R/R & MCKEAN ST

0.9 MI WEST OF SR-544, Polk, FL

Built 1972 ADT: 3,500

SR 570 POLK EB 0.0

Over: I-4 SR 400

I-4 WEST INTERCHANGE, Polk, FL

Built 1998 ADT: 137,500

SR 570 POLK WB 0.0

Over: I-4 SR 400

I-4 WEST INTERCHANGE, Polk, FL

Built 1998 ADT: 120,000

CLARK ROAD 0.0

Over: I-4 SR 400

I-4 WEST INTERCHANGE, Polk, FL

Built 1998 ADT: 120,000

SR570 POLK RMP 0.1

Over: S FRONTAGE ROAD

RAMP I-4 EB TO SR 570 EB, Polk, FL

Built 1998 ADT: 8,100

SR 570 POLK EB 0.1

Over: S FRONTAGE ROAD

0.1MI S OF I-4 WEST INT, Polk, FL

Built 1998 ADT: 14,800

SR 570 POLK WB 0.1

Over: S FRONTAGE RD

0.1 MI S OF I-4 WEST INT, Polk, FL

Built 1998 ADT: 14,800

SR570 POLK RMP 0.2

Over: CLARK ROAD

RMP SR 570 WB TO I-4 EB W, Polk, FL

Built 1998 ADT: 5,900

SR 570 POLK EB 0.4

Over: US 92 NEW TPA HWY

0.3 MI S OF I-4 WEST INT, Polk, FL

Built 1998 ADT: 12,800

SR 570 POLK WB 0.4

Over: US 92 NEW TPA HWY

0.3 MI S OF I-4 WEST INT, Polk, FL

Built 1998 ADT: 13,400

SR 570 POLK EB 0.5

Over: CR 542 & CSX RAILROAD

0.4 MI S OF I-4 WEST INT, Polk, FL

Built 1998 ADT: 18,100

SR 570 POLK WB 0.5

Over: CR 542 & CSX RAILROAD

0.4 MI S OF I-4 WEST INT, Polk, FL

Built 1998 ADT: 18,100

SR 570 POLK WB 2.8

Over: SR 572 AIRPORT ROAD

2.9MI E OF I-4 WEST, Polk, FL

Built 1997 ADT: 10,700

SR 570 POLK EB 2.8

Over: SR 572 AIRPORT ROAD

2.9 MI E OF I-4 WEST, Polk, FL

Built 1997 ADT: 10,700

SR 570 POLK WB 4.1

Over: WARING ROAD

4.2 MI EAST OF I-4 WEST, Polk, FL

Built 1997 ADT: 18,800

SR 570 POLK EB 4.1

Over: WARING ROAD

4.2 MI EAST OF I-4 WEST, Polk, FL

Built 1997 ADT: 18,800

S FRONTAGE RD 5.0

Over: CSXRR,Beaker&WilkinsonRd

0.4MI W OF HARDEN BLVD, Polk, FL

Built 1998 ADT: 50

SR 570 POLK WB 5.1

Over: CSXRR,Beaker&WilkinsonRd

0.4 MI W OF HARDEN BLVD, Polk, FL

Built 1998 ADT: 15,900

SR 570 POLK EB 5.1

Over: CSXRR,Beaker&WilkinsonRd

0.4 MI W OF HARDEN BLVD, Polk, FL

Built 1998 ADT: 15,900

N FRONTAGE RD 5.1

Over: CSXRR,Beaker&WilkinsonRd

0.4 MI W OF HARDEN BLVD, Polk, FL

Built 1998 ADT: 50

SR 570 POLK WB 5.5

Over: HARDEN BLVD SR 563

5.5 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 41,500

SR 570 POLK EB 5.5

Over: HARDEN BLVD SR 563

5.5 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 22,500

SR 570 POLK WB 6.2

Over: UNDERPASS ROAD

6.3 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 19,700

SR 570 POLK EB 6.2

Over: UNDERPASS ROAD

6.3 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 19,700

SR 570 POLK WB 6.6

Over: SR 37 S FLORIDA AVE

6.8 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 34,000

SR 570 POLK EB 6.6

Over: SR 37 S FLORIDA AVE

6.8 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 41,000

SR 570 POLK WB 7.2

Over: CLEVELAND HEIGHTS BLVD

7.3 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 21,350

SR 570 POLK EB 7.2

Over: CLEVELAND HEIGHTS BLVD

7.3 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 21,350

SR 570 POLK WB 8.7

Over: LAKELAND HIGHLANDS RD

8.9 MI EAST OF I-4 WEST, Polk, FL

Built 1999 ADT: 21,350

SR 570 POLK EB 8.7

Over: LAKELAND HIGHLANDS RD

8.9 MI EAST OF I-4 WEST, Polk, FL

Built 1999 ADT: 21,350

SR570 POLK WB 10.1

Over: US 98

10.1 MI EAST OF I-4 WEST, Polk, FL

Built 1999 ADT: 47,500

SR570 EB POLK 10.1

Over: US 98

10.1 MI EAST OF I-4 WEST, Polk, FL

Built 1999 ADT: 47,500

SR570 WB POLK 13.9

Over: LANDFILL ROAD

3.8 MI EAST OF US 98, Polk, FL

Built 1998 ADT: 6,850

SR570 EB POLK 13.9

Over: LANDFILL ROAD

3.8 MI EAST OF US 98, Polk, FL

Built 1998 ADT: 6,850

SR570 POLK RP 14.5

Over: SR 570 POLK

14.8 MI E OF I-4 WEST, Polk, FL

Built 1998 ADT: 18,200

SR570 POLK EB 13.6

Over: RAMP A

14.4 MI EAST OF I-4 WEST, Polk, FL

Built 1998 ADT: 7,100

SR570 POLK WB 11.7

Over: PAVERS ROAD

1.5 MI EAST OF US 98, Polk, FL

Built 1997 ADT: 14,050

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 6, 2026