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:

US-301 SB (SR-43)

Over: CR-574 & CSX R/R

1.3MI NORTH OF SR-60, Hillsborough, FL

Built 1931 ADT: 8,900

SR580 (DALE MABRY)

Over: US-92 (HILLSBOROUGH AVE)

3MI NORTH OF I-275, Hillsborough, FL

Built 1963 ADT: 60,500

JEFFERSON ST RAMP

Over: 7TH AVENUE

0.4 MI E OF US-41 BUS, Hillsborough, FL

Built 1963 ADT: 7,600

I-275 SB TO DWNTWN

Over: CENTRAL AVE.

0.3 MI E OF SR-685 BUS 41, Hillsborough, FL

Built 1963 ADT: 100

SR-597 DALE MABRY

Over: SR-580 AND CSX RR

2.8MI NORTH OF US-92, Hillsborough, FL

Built 1965 ADT: 32,500

SR-60 LEG A

Over: I-275/SR-93

1.7 MI WEST OF DALE MABRY, Hillsborough, FL

Built 1958 ADT: 193,000

US-301 (SR-43 NB)

Over: CR-574

1.3 MILES NORTH OF SR-60, Hillsborough, FL

Built 1970 ADT: 8,900

I-275 NB (SR-93)

Over: BUS 41 (SR-685)

0.2 MI E HILLSBORO RIVER, Hillsborough, FL

Built 1964 ADT: 1,440

SR-597 DALE MABRY

Over: SR-580 AND CSX RR

2.8MI NORTH OF US-92, Hillsborough, FL

Built 1956 ADT: 54,000

I-275 (SR-93)

Over: SR-60 (MEMORIAL BLVD)

1.5 MI WEST OF SR-600, Hillsborough, FL

Built 1962 ADT: 132,000

I-275 (SR-93)

Over: CR-587 (WESTSHORE BLVD)

1.0 MI W OF US-92, Hillsborough, FL

Built 1962 ADT: 18,900

I-275 (SR-93) SB

Over: NORTH BLVD.

2.3MI E OF US-92 (SR-600), Hillsborough, FL

Built 1963 ADT: 1,900

I-275 (SR-93)

Over: HILLSBOROUGH RIVER

1.2 MI W OF I-275 I-4 INT, Hillsborough, FL

Built 1964 ADT: 7,800

I-275 NB (SR-93)

Over: HILLSBOROUGH RIVER

1.2MI W of I-275/I-4 INT, Hillsborough, FL

Built 1964 ADT: 1,875

I-275 (SR-93) SB

Over: JEFFERSON ST OFF-RAMP

0.4 MI E OF HILLS RIVER, Hillsborough, FL

Built 1963 ADT: 6,800

I-275 NB (SR-93)

Over: JEFFERSON ST RAMPS

0.4 MI E OF HILLS RIVER, Hillsborough, FL

Built 1963 ADT: 12,500

I 275 SB

Over: CENTRAL & HENDERSON AVE

0.4MI S I-4/ I-275 INTCHG, Hillsborough, FL

Built 1963 ADT: 1

I-275 NB

Over: CENTRAL & HENDERSON AVE

0.4MI S I-4/ I-275 INTCHG, Hillsborough, FL

Built 1963 ADT: 1

I-275 SB (SR-93)

Over: 7TH AVENUE

0.5 MI E OF US-41 BUS, Hillsborough, FL

Built 1964 ADT: 1,000

I-275 NB (SR-93)

Over: 7TH AVENUE

0.5 MI E OF US-41 BUS, Hillsborough, FL

Built 1964 ADT: 1,000

I-4 WB

Over: PALM AVENUE

0.2 MI S OF I-4 I-275 JCT, Hillsborough, FL

Built 1963 ADT: 7,000

I-275 NB (SR-93)

Over: PALM AVENUE

0.2 MI S OF I-4 I-275 JCT, Hillsborough, FL

Built 1963 ADT: 7,000

I-4WB TO I-275SB

Over: NEBRASKA AVENUE(SR-45)

AT I-4 & I-275 JUNCTION, Hillsborough, FL

Built 1963 ADT: 13,900

I-275 NB TO I-4 EB

Over: SR-45 (NEBRASKA AVENUE)

AT INTERSECTION I-4 I-275, Hillsborough, FL

Built 1963 ADT: 13,900

I-4 WB

Over: 14TH STREET

0.6 MI. WEST OF SR-585, Hillsborough, FL

Built 1962 ADT: 2,700

I-4 WB (SR 400)

Over: 15TH STREET

0.5 MI E OF I-275, Hillsborough, FL

Built 1962 ADT: 4,600

I-275 SB (SR-93)

Over: PALM AVENUE

0.2 MI S of I-4 I-275 JCT, Hillsborough, FL

Built 1963 ADT: 7,000

I-275 SB

Over: COLUMBUS DRIVE

0.2MI N OF I-4 I-275 INT., Hillsborough, FL

Built 1963 ADT: 29,500

I 275 NB

Over: COLUMBUS DRIVE

0.2MI N OF I-275 I-4 INT, Hillsborough, FL

Built 1963 ADT: 1,500

I-275

Over: FLORIBRASKA AVENUE

0.75 MI SOUTH OF SR-574, Hillsborough, FL

Built 1966 ADT: 2,000

I-275

Over: MARTIN LUTHER KING BLVD

1 MI SOUTH OF US-92, Hillsborough, FL

Built 1966 ADT: 27,500

I-275

Over: CHELSEA STREET

0.2 MI N OF SR-574 (MLK), Hillsborough, FL

Built 1966 ADT: 3,000

I-275

Over: LAKE AVENUE

0.25MI SOUTH OF SR-574, Hillsborough, FL

Built 1966 ADT: 1,550

I-275 (SR-93)

Over: OSBORNE AVENUE

0.5 MI N OF SR-574 (MLK), Hillsborough, FL

Built 1966 ADT: 2,550

I-275 (SR-93)

Over: US-92 (HILLSBOROUGH AVE)

1.0MI. NORTH OF SR-574, Hillsborough, FL

Built 1966 ADT: 51,500

I-275

Over: HANNA AVENUE

0.5MI NORTH OF US-92, Hillsborough, FL

Built 1966 ADT: 3,900

I-275

Over: SLIGH AVENUE

1.0 MI NORTH OF US-92, Hillsborough, FL

Built 1967 ADT: 20,500

I-275

Over: BROAD STREET

1.4 MI N OF US-92, Hillsborough, FL

Built 1967 ADT: 1,000

I-275

Over: BIRD STREET

0.7MI SOUTH OF SR-580, Hillsborough, FL

Built 1967 ADT: 8,000

I-275

Over: WATERS AVENUE

0.5MI SOUTH OF SR-580, Hillsborough, FL

Built 1967 ADT: 21,000

I-275 (SR-93)

Over: YUKON STREET

0.6 MI N OF HILLS RIVER, Hillsborough, FL

Built 1967 ADT: 3,000

I-275 NB & SB

Over: SR-580 and CSX RR

0.9 MI. N OF HILLS. RIVER, Hillsborough, FL

Built 1967 ADT: 47,000

I-275

Over: LINEBAUGH AVE

0.5 MI. NORTH OF SR-580, Hillsborough, FL

Built 1967 ADT: 2,000

I-275

Over: SR-582/FOWLER AVENUE

1.5MI NORTH OF SR-580, Hillsborough, FL

Built 1966 ADT: 55,000

I-275

Over: 127TH AVENUE

0.5MI NORTH OF SR-582, Hillsborough, FL

Built 1966 ADT: 6,250

I-275

Over: SR-579/FLETCHER AVE

1MI NORTH OF SR-582, Hillsborough, FL

Built 1966 ADT: 39,000

I-275

Over: SR-678 (BEARSS AVE)

2.3Mi North of SR-582, Hillsborough, FL

Built 1964 ADT: 59,000

I-275

Over: US-41 CSX RR

2.9MI NORTH OF SR-582, Hillsborough, FL

Built 1964 ADT: 17,250

LIVINGSTON AVE

Over: I-275

900FT S OF VANDERVORT RD, Hillsborough, FL

Built 1964 ADT: 66,500

I-275

Over: BOUGAINVILLEA AVE.

0.7 MI. NORTH OF SR-580, Hillsborough, FL

Built 1966 ADT: 1,300

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