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)

EB SR - 714

Good

Over: Danforth Creek

2.5 mi East of TPK Exit, Martin, FL

Built 1978 Load: 24.5 t ADT: 15,500

DIXIE HIGHWAY

Good

Over: WARNER CREEK

1.2Mi. E of Savannah Rd., Martin, FL

Built 1991 Load: 24.7 t ADT: 11,300

WB SR - 714

Good

Over: Danforth Creek

2.5 mi East of TPK Exit, Martin, FL

Built 1983 Load: 25.0 t ADT: 15,500

SR-91 TPK 134.1

Good

Over: Danforth Creek

0.51 mi. S of SR-714, Martin, FL

Built 1957 Load: 28.1 t ADT: 52,700

SR 91 TPK 137.25

Good

Over: DRAINAGE DITCH

2.6 MI NORTH OF SR-714, Martin, FL

Built 1957 Load: 28.1 t ADT: 59,900

Indian Rvrsd Pk Rd

Good

Over: Tidal Canal

Indian Riverside Park, Martin, FL

Built 2009 Load: 28.8 t ADT: 1,000

CR-726 CITRUS BLVD

Good

Over: ORANGE CANAL

5.8Mi. E of SR-710, Martin, FL

Built 1973 Load: 29.0 t ADT: 2,341

CR-76A

Good

Over: ST LUCIE CANAL

1.5 Mile West of SR-76, Martin, FL

Built 1980 Load: 29.8 t ADT: 3,100

CR-A1A(OCEAN BLVD)

Good

Over: KRUEGER CREEK

2MI E of SR-76, Martin, FL

Built 1985 Load: 31.6 t ADT: 12,020

SR-76 (Kanner Hwy)

Good

Over: Drainage Canal

1.5mi East of Indiantown, Martin, FL

Built 1989 Load: 32.4 t ADT: 4,400

US-1 (SR-5) SB

Good

Over: Drainage Ditch

N of Roosevelt Bridge, Martin, FL

Built 1952 Load: 32.7 t ADT: 25,250

SR-91 TPK NB130.75

Good

Over: ST LUCIE CANAL

3 miles S of SR 714 Exit, Martin, FL

Built 2003 Load: 32.7 t ADT: 26,350

SW 48th Avenue

Good

Over: Bessey Creek

0.8mi. N of CR-714, Martin, FL

Built 2008 Load: 32.8 t ADT: 5,760

SIMARA STREET

Good

Over: TIDAL CANAL

650FT E OF SEWALLS PT. RD, Martin, FL

Built 1992 Load: 33.3 t ADT: 120

ISLAND WAY

Good

Over: LOXAHATCHEE RIV NW FORK

0.5Mi N of PLMBCH CO LINE, Martin, FL

Built 1995 Load: 33.8 t ADT: 1,950

CR-A1A (Dixie HWY)

Good

Over: Tributary of Manatee Crk

900ft. S of CR A1A, Martin, FL

Built 2019 Load: 34.2 t ADT: 18,041

CR-723

Good

Over: WARNER CREEK

0.6Mi S of 707A, Martin, FL

Built 1967 Load: 34.3 t ADT: 9,200

West Island Access

Good

Over: West Indian River Relief

Westside of Lyons Bridge, Martin, FL

Built 2006 Load: 35.2 t ADT: 14,900

East Island Access

Good

Over: East Indian River Relief

Eastside of Lyons Bridge, Martin, FL

Built 2006 Load: 35.2 t ADT: 14,900

CR-A1A (DIXIE HWY)

Good

Over: TRIBUTARY OF MANATEE CRE

0.5Mi S of COVE RD, Martin, FL

Built 1952 Load: 35.3 t ADT: 18,041

CITRUS BLVD.

Good

Over: C-23 CANAL

0.2MILE S OF SW BECKER RD, Martin, FL

Built 2008 Load: 35.3 t ADT: 2,000

SR-76

Good

Over: S. Fork St. Lucie River

.25 mi East of I-95, Martin, FL

Built 1987 Load: 35.6 t ADT: 41,000

SE ST LUCIE BLVD

Good

Over: WILLOUGHBY CREEK

1/2MI S of INDIAN ST., Martin, FL

Built 1980 Load: 35.9 t ADT: 3,111

MURPHY RD

Good

Over: BESSEY CREEK

0.4MI NW OF HIGH MEADOW, Martin, FL

Built 1983 Load: 36.2 t ADT: 7,161

Cove Rd. CR 722

Good

Over: Manatee Creek

0.1 Mile Feet East of A1A, Martin, FL

Built 2021 Load: 36.4 t ADT: 2,500

SB I-95 (SR-9)

Good

Over: C-23 CANAL

2mi. N of SR714 on I95, Martin, FL

Built 1984 Load: 36.9 t ADT: 40,229

NB I-95 (SR-9)

Good

Over: C-23 Canal

2mi.N of SR714 on I95, Martin, FL

Built 1984 Load: 36.9 t ADT: 40,229

SR-A1A EB

Good

Over: St.Lucie River

2.6 Miles East of US-1, Martin, FL

Built 2001 Load: 36.9 t ADT: 12,500

SR-A1A WB

Good

Over: St. Lucie River

2.6 Miles East of US-1, Martin, FL

Built 2001 Load: 36.9 t ADT: 12,500

Britt Road

Good

Over: Britt Canal

1 mile west of US 1, Martin, FL

Built 2018 Load: 36.9 t ADT: 2,850

SILVER FOX LANE

Good

Over: ROY'S SWALE

0.5Mi S of SR-710, Martin, FL

Built 1994 Load: 37.1 t ADT: 190

HURON WAY

Good

Over: CORAL GARDENS OUTFALL

0.1Mi E of ONTARIO DRIVE, Martin, FL

Built 1980 Load: 37.1 t ADT: 200

CR-708

Good

Over: Drainage Canal

1.7 Miles West of I-95, Martin, FL

Built 2014 Load: 37.7 t ADT: 1,440

CR714 PALM CITY RD

Good

Over: POPPELTON CREEK

1/2MI S of US-1, Martin, FL

Built 1970 Load: 37.9 t ADT: 7,630

DIXIE HWY (A1A)

Good

Over: SALERNO CREEK

AT SALERNO ROAD AND A1A, Martin, FL

Built 1958 Load: 38.1 t ADT: 6,000

SW Wood St.

Good

Over: S-135 Canal

0.2 MI West of US-98, Martin, FL

Built 1967 Load: 38.2 t ADT: 144

CR726 (Citrus Blv)

Good

Over: C-133 Canal

4.85 Miles E of SR-710, Martin, FL

Built 2014 Load: 38.6 t ADT: 2,600

CR726 (Citrus Blv)

Good

Over: C-44 Intake Canal

1.74 Miles E of SR-710, Martin, FL

Built 2014 Load: 38.8 t ADT: 2,400

SR91 TPK NS 118.45

Good

Over: DRAINAGE CANAL

0.67 MI N OF PLM BCH CO, Martin, FL

Built 1957 Load: 39.4 t ADT: 52,700

SR91 N/S TPK 125.9

Good

Over: DRAINAGE CANAL

0.45MI NORTH OF SR-708, Martin, FL

Built 1959 Load: 39.4 t ADT: 52,700

SR91 N/S TPK 127.9

Good

Over: DRAINAGE CANAL

2.2 MI SOUTH OF SR-76, Martin, FL

Built 1957 Load: 39.4 t ADT: 52,700

SR-A1A (Ocean Bld)

Good

Over: Intracoastal Waterway

4.0 Miles East of US-1, Martin, FL

Built 2006 Load: 39.5 t ADT: 15,700

NORFOLK BLVD.

Good

Over: CORAL GARDENS OUTFALL

0.1MI. E of KANNER HWY, Martin, FL

Built 1980 Load: 40.2 t ADT: 400

SR-9(I-95)

Good

Over: DRAINAGE DITCH

2 MILES N OF CR-708, Martin, FL

Built 1987 Load: 41.7 t ADT: 79,500

MAPP RD

Good

Over: MAPLE CREEK

1.9MI S of CR-714, Martin, FL

Built 1982 Load: 41.7 t ADT: 1,854

NB I-95 (SR-9)

Good

Over: Drainage Canal

1 mi. N of Cnty Rd 708, Martin, FL

Built 1986 Load: 42.5 t ADT: 51,500

SB I-95 (SR 9)

Good

Over: Drainage Canal

1 mi. N of Cnty Rd 708, Martin, FL

Built 1986 Load: 42.5 t ADT: 51,500

ST LUCIE BLVD

Good

Over: CROOKED CREEK

0.4MI NE OF A1A, Martin, FL

Built 1955 Load: 42.6 t ADT: 3,111

NE Bayberry Lane

Good

Over: Warner Creek Canal

1.63 Miles East of US-1, Martin, FL

Built 2017 Load: 42.9 t ADT: 5,760

SB I-95 (SR-9)

Good

Over: Cypress Creek

2.5 Miles North of SR-706, Martin, FL

Built 1986 Load: 43.1 t ADT: 45,750

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