Hillsborough County, FL

840 public highway bridges

Hillsborough County Bridge Snapshot

Hillsborough County, Florida contains 840 public highway bridges in the FHWA National Bridge Inventory. Roughly 33.8% are rated “Good,” 21% “Fair,” 0.2% “Poor,” and 0.2% 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.

840

Total Bridges

33.8%

Good

0.2%

Poor

0.2%

Structurally Deficient

Condition Distribution

Good

33.8% (284)

Fair

21% (176)

Poor

0.2% (2)

SD

0.2% (2)

All Bridges (840)

Sort:

I-75 SB

Over: I-4 AND RAMP C-1

I-75 & I-4 INTERCHANGE, Hillsborough, FL

Built 1984 ADT: 13,500

I-75 NB

Over: I-4 AND RAMP C-1

I-75 & I-4 INTERCHANGE, Hillsborough, FL

Built 1984 ADT: 13,500

I-75 SB (SR-93A)

Over: I-75 NB TO I-4 WB

0.1MI NORTH OF I-4, Hillsborough, FL

Built 1983 ADT: 17,500

I-75 NB (SR-93A)

Over: I-75 NB TO I-4 WB

0.1 MI NORTH OF I-4, Hillsborough, FL

Built 1983 ADT: 17,500

I-75 SB

Over: SLIGH AVE & RAMP D-1

0.2MI NORTH OF I-4, Hillsborough, FL

Built 1984 ADT: 7,000

I-75 NB

Over: SLIGH AVE & RAMP D-1

0.2MI NORTH OF I-4, Hillsborough, FL

Built 1984 ADT: 13,000

I-75 SB (SR-93A)

Over: 127TH AVE.

0.5MI NORTH OF SR-582, Hillsborough, FL

Built 1985 ADT: 500

I-75 NB (SR-93A)

Over: 127TH AVE.

0.5MI NORTH OF SR-582, Hillsborough, FL

Built 1985 ADT: 500

I-75 SB (SR-93A)

Over: SR-582 (FOWLER AVE)

1.2MI NORTH OF US-301, Hillsborough, FL

Built 1985 ADT: 18,500

I-75 NB (SR-93A)

Over: SR-582/FOWLER AVE

1.2MI NORTH OF US-301, Hillsborough, FL

Built 1985 ADT: 18,500

I-75SB TO SR-582EB

Over: SR-582 (FOWLER AVE.)

1.2MI NORTH OF US-301, Hillsborough, FL

Built 1985 ADT: 18,500

I-75NB TO SR-582WB

Over: SR-582 (FOWLER AVE.)

1.2 MI N OF US-301, Hillsborough, FL

Built 1985 ADT: 18,500

I-75 SB (SR-93A)

Over: RAMP I-75 NB TO SR-582WB

I-75&SR-582 INTERCHANGE, Hillsborough, FL

Built 1985 ADT: 18,000

I-75 NB (SR 93A)

Over: RAMP I75 NB TO SR582 WB

I-75 & SR-582 INTERCHANGE, Hillsborough, FL

Built 1985 ADT: 18,000

I-75 SB TO SR582WB

Over: I-75 NB TO SR582 WB

I-75 & SR-582 INTERCHANGE, Hillsborough, FL

Built 1985 ADT: 18,000

I75 SB TO SR582 EB

Over: RAMP I75 NB TO SR582 WB

I-75 & SR-582 INTERCHANGE, Hillsborough, FL

Built 1985 ADT: 18,000

I-275 NB TO I-75NB

Over: I-75 (SR-93)

2MI S OF SR-54, Hillsborough, FL

Built 1982 ADT: 88,000

I-75 SB (SR-93A)

Over: US-92 (SR-600)

0.4MI SOUTH OF I-4(SR400), Hillsborough, FL

Built 1983 ADT: 17,600

I-75 NB (SR-93A)

Over: US-92 (SR-600)

0.4MI SOUTH OF I-4(SR400), Hillsborough, FL

Built 1983 ADT: 17,600

I-75 SB (SR-93A)

Over: I-4 EB TO I-75 NB

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1983 ADT: 12,500

I-75 NB (SR-93A)

Over: I-4 EB TO I-75 NB

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1983 ADT: 12,500

I-75 NB (SR-93A)

Over: Morris Bridge (CR-579)

1MI NORTH OF SR-582, Hillsborough, FL

Built 1982 ADT: 14,100

I-75 NB TO I-4 EB

Over: US-92 (SR-600)

0.4MI SOUTH OF I-4, Hillsborough, FL

Built 1983 ADT: 17,600

RAMP I75NB TO I4WB

Over: I-4 & RAMP I75SB TO I4EB

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1984 ADT: 152,000

I-4 EB TO I-75 SB

Over: US-92 (SR-600)

0.4MI S OF I-4 (SR-400), Hillsborough, FL

Built 1983 ADT: 17,600

I-75 SB TO I-4 EB

Over: I-4 & RAMP A-1

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1985 ADT: 154,000

SR-574 (MLK BLVD)

Over: I-75 (SR-93)

2.3MI EAST OF US-301, Hillsborough, FL

Built 1984 ADT: 143,500

I-4 EB TO I-75NB

Over: I-4

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1984 ADT: 152,000

WILLIAMS ROAD

Over: RAMP A-1 & I-4

0.4MI NORTH OF US-92, Hillsborough, FL

Built 1984 ADT: 152,000

I-75 SB TO I-4

Over: SLIGH AVENUE

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1985 ADT: 8,000

I-4 WB TO I-75 SB

Over: I-4 & RAMPS A-1 & C-1

I-4 & I-75 INTERCHANGE, Hillsborough, FL

Built 1984 ADT: 154,000

I-75 SB

Over: CR-574 AND CSX RR

3.1MI N OF SR-60, Hillsborough, FL

Built 1983 ADT: 21,500

I-75 NB

Over: CR-574 & CSX RR

3.1MI N OF SR-60, Hillsborough, FL

Built 1983 ADT: 21,500

SR-618 WB

Over: US41B (22ND ST) & CSX RR

1.0 MI E/O NEBRASKA AVE, Hillsborough, FL

Built 1981 ADT: 40,500

SR-618 EB

Over: US-41B (22ND ST) & CSX R

1.0 MI E/O NEBRASKA AVE, Hillsborough, FL

Built 1981 ADT: 40,500

SR618 SELMON WB

Over: 34TH STREET & CREEK

170FT. S. OF SR-60, Hillsborough, FL

Built 1981 ADT: 3,400

SR618A SELMON EXPY

Over: 34TH STREET & CREEK

1.25MI W/O US-41, Hillsborough, FL

Built 1981 ADT: 3,400

SR618 SELMON WB

Over: US-41 (50TH STREET)

2.0MI W/O 78TH ST, Hillsborough, FL

Built 1981 ADT: 40,000

SR618 SELMON EB

Over: US-41 (50TH STREET)

810FT. SOUTH OF SR-60, Hillsborough, FL

Built 1981 ADT: 40,000

SR618 SELMON WB

Over: MAYDELL DRIVE

575FT. SOUTH OF SR-60, Hillsborough, FL

Built 1981 ADT: 1,300

SR618 SELMON EB

Over: MAYDELL DRIVE

620FT. SOUTH OF SR-60, Hillsborough, FL

Built 1981 ADT: 1,300

SR618 SELMON WB

Over: CR-573 78TH ST & PALM R

0.1MI SOUTH OF SR-60, Hillsborough, FL

Built 1981 ADT: 12,519

SR618 SELMON EB

Over: CR-573 78TH ST & PALM R

0.1MI SOUTH OF SR-60, Hillsborough, FL

Built 1981 ADT: 12,519

SR618A SELMON EXPY

Over: PALM RIVER RD

0.4 MI W OF US-301, Hillsborough, FL

Built 1981 ADT: 6,600

SR618 SELMON EB

Over: PALM RIVER ROAD

1.0MI W OF US-301, Hillsborough, FL

Built 1981 ADT: 6,600

SR618 SELMON WB

Over: US-301 (SR-43)

1.1MI WEST OF I-75, Hillsborough, FL

Built 1984 ADT: 42,500

SR618A SELMON EXPY

Over: US-301 (SR-43)

1.1MI WEST OF I-75, Hillsborough, FL

Built 1984 ADT: 37,000

I-75 SB (SR-93A)

Over: WOODBERRY ROAD

0.9MI N OF SR-60, Hillsborough, FL

Built 1983 ADT: 3,000

I-75 NB (SR-93A)

Over: WOODBERRY ROAD

0.9MI N OF SR-60, Hillsborough, FL

Built 1983 ADT: 3,000

I-75 SB (SR-93A)

Over: HARNEY RD (CR-580)

2.6MI NORTH OF I-4, Hillsborough, FL

Built 1983 ADT: 3,605

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