Martin County, FL

129 public highway bridges

Martin County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Martin County, Florida contains 129 public highway bridges. Roughly 62% are rated “Good,” 22.5% “Fair,” and 0.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

129
Total Bridges
62%
Good
22.5%
Fair
0.8%
Poor Condition

Condition Distribution

Good
62% (80)
Fair
22.5% (29)
Poor
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.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.