Martin County, FL

129 public highway bridges

Martin County Bridge Snapshot

Martin County, Florida contains 129 public highway bridges in the FHWA National Bridge Inventory. Roughly 62% are rated “Good,” 22.5% “Fair,” 0.8% “Poor,” and 0.8% 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.

129
Total Bridges
62%
Good
0.8%
Poor
0.8%
Structurally Deficient

Condition Distribution

Good
62% (80)
Fair
22.5% (29)
Poor
0.8% (1)
SD
0.8% (1)

All Bridges (129)

SR91 SB TPK 134.32

Unknown

Over: SR 91 TPK (STUART INT)

SR 714 Ramp over TPKE, Martin, FL

Built 1957 ADT: 52,700

US-441 SR-15

Unknown

Over: SR-76 & St. Lucie Canal

US-441 and SR-76, Martin, FL

Built 1983 ADT: 2,400

SB I-95 (SR 9)

Unknown

Over: S.R. 714

SB I-95 / SR-714, Martin, FL

Built 1984 ADT: 7,600

NB I-95 (SR-9)

Unknown

Over: S. R. 714

NB I-95 / SR 714, Martin, FL

Built 1984 ADT: 14,900

CR 76A

Unknown

Over: I-95 (SR 9)

CR 76A over I-95, Martin, FL

Built 1986 ADT: 40,500

SB I-95 (SR 9)

Unknown

Over: CR 708

4.5 Mi S of SW Kanner Hwy, Martin, FL

Built 1986 ADT: 11,000

NB I-95 (SR-9)

Unknown

Over: CR 708

9.3 Mi N of SR-706, Martin, FL

Built 1986 ADT: 11,000

CR 708 125.4

Unknown

Over: SR 91 TPK

0.1 MILE WEST OF I-95, Martin, FL

Built 1986 ADT: 52,700

SB I-95 (SR-9 )

Unknown

Over: SR-91 (Fla's.Turnpike)

1.5 N of SW KANNER HWY, Martin, FL

Built 1987 ADT: 52,700

NB I-95 (SR-9)

Unknown

Over: SR-91 (Fla's. Turnpike)

1.5 Mi N/O SW Kanner Hwy, Martin, FL

Built 1987 ADT: 52,700

SR-76(Kanner Hwy )

Unknown

Over: SR-91 (FL. TPK.)

.25mi W OF I-95, Martin, FL

Built 1987 ADT: 43,600

NB I-95 (S.R. 9)

Unknown

Over: SR-76

South of St. Lucie Canal, Martin, FL

Built 1987 ADT: 41,000

SB I-95 (SR 9)

Unknown

Over: SR-76

South of St Lucie Canal, Martin, FL

Built 1987 ADT: 41,000

US-1 (SR-5) SB

Unknown

Over: St. Lucie River / SR-707

1 Mile South of SR-707, Martin, FL

Built 1997 ADT: 8,900

US-1 (SR-5) NB

Unknown

Over: St. Lucie River / SR-707

1 Mile South of SR-707, Martin, FL

Built 1997 ADT: 8,900

SR-714

Unknown

Over: SR-91 (Fl. Tpk.)

Turnpike at Stuart exit., Martin, FL

Built 1999 ADT: 52,700

SR-710 EB

Unknown

Over: St. Lucie Canal/SR-76

2.1 Miles E of CR-609, Martin, FL

Built 2013 ADT: 2,900

SR-710 WB

Unknown

Over: St. Lucie Canal/SR-76

2.1 Miles East of CR-609, Martin, FL

Built 2014 ADT: 4,300

CR-714 Indian St.

Unknown

Over: Okeechobee Waterway

0.1 MI West of SR-76, Martin, FL

Built 2013 ADT: 150

SE ISLAND WAY ROAD

Fair

Over: LOXAHATCHEE RIVER

0.2MI E of LOXAHATCHEE RD, Martin, FL

Built 1950 Load: 20.4 t ADT: 4,000

SR-710 Beeline Hwy

Fair

Over: Drainage Canal

5.8 miles west of SR-76, Martin, FL

Built 1975 Load: 24.5 t ADT: 8,800

SR710 Warfield Blv

Fair

Over: DRAINAGE CANAL

8.9 mi W of SR-76, Martin, FL

Built 1958 Load: 24.6 t ADT: 7,400

SR-732 (Jensen)

Fair

Over: Warner Creek

1.6 Miles East of US-1, Martin, FL

Built 1958 Load: 26.8 t ADT: 13,000

US-1 (SR-5) NB

Fair

Over: Drainage Ditch

N of Roosevelt Bridge, Martin, FL

Built 1958 Load: 27.8 t ADT: 25,250

SR91 N/S TPK 135.6

Fair

Over: BESSEY CREEK

1.3 MI N OF STUART INTRCH, Martin, FL

Built 1957 Load: 28.0 t ADT: 59,900

SR 707 (Dixie Hwy)

Fair

Over: St. Lucie River

1/4Mi W of New Roosevelt, Martin, FL

Built 1964 Load: 28.1 t ADT: 11,400

Jensen Bch. Cswy.

Fair

Over: W. Relief Indian River

W. of Jensen Bch. Cswy., Martin, FL

Built 1987 Load: 28.3 t ADT: 11,500

SR91 N/S TPK 126.5

Fair

Over: PHIPP CANAL

1.0MI NORTH OF SR-708, Martin, FL

Built 1957 Load: 30.5 t ADT: 52,700

SR91 NS TPK 119.05

Fair

Over: CYPRESS CREEK #2

1.3 MI N OF PLM BCH CO LI, Martin, FL

Built 1956 Load: 33.0 t ADT: 52,700

SR91 N/S TPK 138.1

Fair

Over: COUNTY LINE CANAL C-23

3.4MI NORTH OF SR-714, Martin, FL

Built 1957 Load: 33.3 t ADT: 59,900

CR708 SE BRIDGE RD

Fair

Over: INTRACOASTAL WATERWAY

0.9 M E OF US-1 ON CR-708, Martin, FL

Built 1985 Load: 33.9 t ADT: 10,502

SR-76

Fair

Over: POPPLETON CREEK

By Indian Grove Dr., Martin, FL

Built 1956 Load: 37.0 t ADT: 34,500

SR 91 TPK 120.25

Fair

Over: DRAINAGE CANAL

2.5MI NORTH OF CO LINE, Martin, FL

Built 1957 Load: 39.4 t ADT: 52,700

SR91 N/S TPK 123.9

Fair

Over: DRAINAGE CANAL

6 MI N OF PLM BEACH CO LI, Martin, FL

Built 1957 Load: 39.4 t ADT: 52,700

SR91 N/S TPK 125.2

Fair

Over: DRAINAGE CANAL

0.25MI SOUTH OF SR-708, Martin, FL

Built 1957 Load: 39.4 t ADT: 52,700

SR91 NS TPK 124.55

Fair

Over: DRAINAGE DITCH

0.9MI SOUTH OF SR-708, Martin, FL

Built 1956 Load: 39.4 t ADT: 52,700

SR 91 TPK SB 130.8

Fair

Over: ST LUCIE CANAL

3 mi South of SR 714 Exit, Martin, FL

Built 1957 Load: 39.6 t ADT: 26,350

US-1 (SR-5) SB

Fair

Over: FEC RR(Olympia Overpass)

1 Mile South of CR-708, Martin, FL

Built 1956 Load: 42.3 t ADT: 10,000

US-1 (SR-5) NB

Fair

Over: FEC RR(Olympia Overpass)

1 Mile South of CR-708, Martin, FL

Built 1956 Load: 42.3 t ADT: 10,000

SR91 N/S TPK 127.3

Fair

Over: DRAINAGE DITCH

1.8MI NORTH OF SR-708, Martin, FL

Built 1957 Load: 43.0 t ADT: 52,700

US-1 (SR-5)

Fair

Over: Frazier Creek

Just S. of Roosevelt BR, Martin, FL

Built 1964 Load: 44.5 t ADT: 33,500

EB Martin Downs Bl

Fair

Over: S Fork St. Lucie River

0.34 mi W of Kanner Hwy, Martin, FL

Built 1970 Load: 45.4 t ADT: 18,750

I-95 (SR-9)

Fair

Over: Hanson Grant Outlet

2.0 Mi N of SR-76, Martin, FL

Built 1987 Load: 53.6 t ADT: 46,500

NB I-95 (SR-9)

Fair

Over: St. Lucie Canal

1mi N of SR-76(Kanner Hw), Martin, FL

Built 1987 Load: 55.2 t ADT: 40,500

SB I-95 (SR-9)

Fair

Over: St. Lucie Canal

1mi N of SR-76(Kanner Hw), Martin, FL

Built 1987 Load: 56.3 t ADT: 40,500

WB Martin Downs Bl

Fair

Over: S Fork St. Lucie River

0.34 mi W of Kanner Hwy, Martin, FL

Built 1991 Load: 61.3 t ADT: 18,750

SE HARBOR ISLAND

Fair

Over: CANAL

0.2Mi E of GOMEZ AVE., Martin, FL

Built 1968 Load: 68.9 t ADT: 121

STAR ISLAND WAY

Fair

Over: CANAL

160ft. E of Soundings Dr, Martin, FL

Built 1968 Load: 68.9 t ADT: 121

ISLAND RD.

Good

Over: BRANCH OF INDIAN RIVER

100FT Eof SEWALLS PT. RD., Martin, FL

Built 1964 Load: 19.2 t ADT: 115

LEIGHTON FARM AVE

Good

Over: DANFORTH CREEK

0.6MI South of CR-714, Martin, FL

Built 1986 Load: 21.3 t ADT: 106

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

Related

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