County profile · official public datasets

Martin County, NC

124 public highway bridges tracked in the FHWA National Bridge Inventory: 45.2% rated Good, 51.6% Fair, 3.2% Poor.

124
Public bridges
45.2%
Good condition
3.2%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Martin County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 32%
lowest Poor share in state
3.2%
Poor-condition share
124
public highway bridges
1988
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Martin County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Martin County ranks #32 of 100 North Carolina counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.2%). Martin County, North Carolina contains 124 public highway bridges. Roughly 45.2% are rated “Good,” 51.6% “Fair,” and 3.2% “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.

Total bridges

124

Public highway bridges in Martin County

Good condition

45.2%

56 of 124 rated 7-9

Fair condition

51.6%

64 of 124 rated 5-6

Poor condition

3.2%

4 of 124 rated 4 or below

In-state Poor-share rank

#32 of 100

Among North Carolina counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 124 NBI-tracked bridges by lowest applicable component rating.

Good
45.2% (56)
Fair
51.6% (64)
Poor
3.2% (4)

Martin County's Poor-condition bridges carry 5,310 vehicle crossings a day

That is 2% of the county's reported daily bridge traffic on 3.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,328 crossings a day against 2,317 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 124 of 124 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

29% of Martin County's bridges have passed the 50-year mark

36 of the 124 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 45.2% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 82.9% of the county's Poor-condition bridge traffic

US64E over WELCH CREEK, built 1989, carries 4,400 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 5,310 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Martin County's bridges were built

124 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 37 of the county's bridges still in the inventory were built, which is 29.8% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1988) matches the North Carolina average (1986).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Martin County compares with North Carolina's closest counties by inventory size

The 5 North Carolina counties nearest Martin County in number of bridges, with their condition splits. Its 3.2% Poor share is the 2nd-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1984 is in line with the group.

Showing the 5 closest of 99 North Carolina counties eligible for comparison.

Bridge inventory size and condition shares for Martin County and the 5 North Carolina counties closest to it in inventory size
County Bridges Poor
Swain County 129 11.6%
Mitchell County 127 25.2%
Polk County 127 11%
Martin County (this page) 124 3.2%
Bladen County 123 1.6%
New Hanover County 123 3.3%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Martin County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Martin County, both outside North Carolina so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside NC (124 bridges here).

Similar average build year

Nearest mean year-built outside NC (1988 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 124 Good 56 Fair 64 Poor 4

All bridges (124)

SR1527

Fair

Over: LONG CREEK

1.2 MI. S. JCT. SR1528, Martin, NC

Built 1993 Load: 89.8 t ADT: 390

SR1326

Fair

Over: ETHERIDGE SWAMP

0.3 MI.S. OF JCT. SR1329, Martin, NC

Built 1972 Load: 89.8 t ADT: 100

SR1330

Fair

Over: BR. ETHERIDGE SWAMP

0.4 MI N. OF JCT. SR1329, Martin, NC

Built 1994 Load: 89.8 t ADT: 100

SR1312

Fair

Over: HUSKANAW SWAMP

0.5 MI.N. OF SR1313, Martin, NC

Built 1989 Load: 89.8 t ADT: 220

SR1510

Fair

Over: BRANCH GARDENER CREEK

0.2 MI S JCT SR 1516, Martin, NC

Built 1979 Load: 89.8 t ADT: 500

SR1128

Fair

Over: READY BRANCH

0.9 MI S. JCT. SR1127, Martin, NC

Built 1982 Load: 89.8 t ADT: 350

SR1103

Fair

Over: BEAR GRASS SWAMP

0.6 MI. S. JCT. SR1172, Martin, NC

Built 1989 Load: 89.8 t ADT: 110

SR1328

Fair

Over: BR. ETHRIDGE SWAMP

0.5 MI.W. OF JCT.SR1326, Martin, NC

Built 1995 Load: 89.8 t ADT: 100

SR1326

Fair

Over: ETHERIDGE SWAMP

0.5 MI.S. JCT.SR1328, Martin, NC

Built 1996 Load: 89.8 t ADT: 100

SR1160

Fair

Over: FLAT SWAMP CANAL

0.7 MI.W. JCT. SR1159, Martin, NC

Built 1996 Load: 89.8 t ADT: 140

SR1526

Fair

Over: HARDISON MILL CREEK

0.7 MI.N.JCT.SR1527, Martin, NC

Built 1990 Load: 89.8 t ADT: 260

SR1001

Fair

Over: READY BRANCH

0.3 MI. S. JCT. SR1121, Martin, NC

Built 1983 Load: 89.8 t ADT: 3,100

SR1332

Fair

Over: BR. OF CONOHO CREEK

0.5 MI. S. JCT. NC903, Martin, NC

Built 1962 Load: 89.8 t ADT: 100

SR1530

Fair

Over: BRANCH OF LONG CREEK

0.2 MI.E. OF JCT.SR1516, Martin, NC

Built 2008 Load: 89.8 t ADT: 620

SR1307

Good

Over: BRANCH COLLIE SWAMP

0.1 MI S JCT SR1305, Martin, NC

Built 1998 Load: 26.3 t ADT: 100

SR1409

Good

Over: BEAVERDAM CREEK

1.0MI.E. OF JCT.SR1407, Martin, NC

Built 1977 Load: 28.1 t ADT: 1,100

SR1500

Good

Over: BR. HARDISON MILL CRK

0.5 MI N. OF JCT SR 1520, Martin, NC

Built 1977 Load: 29.0 t ADT: 370

US13 US64 WB

Good

Over: US64A

2MI.E. OF JCT.SR1159, Martin, NC

Built 1999 Load: 30.8 t ADT: 4,750

SR1305

Good

Over: US13/64

0.8 MI. N. JCT. US64 ALT., Martin, NC

Built 1999 Load: 31.7 t ADT: 160

US64A

Good

Over: FLAT SWAMP

0.2 MI. W. JCT. SR1301, Martin, NC

Built 1960 Load: 32.6 t ADT: 1,400

NC903

Good

Over: ROSS SWAMP

0.2 MI. N. JCT. SR1401, Martin, NC

Built 1968 Load: 32.6 t ADT: 1,200

ROBERSON STREET

Good

Over: SKEWAKEE GUT PERENNIAL S

0.15 MI. W. JCT. MAIN ST., Martin, NC

Built 2008 Load: 32.6 t ADT: 250

SR1303

Good

Over: US13/64

0.6 MI. N. JCT. NC11, Martin, NC

Built 1998 Load: 35.3 t ADT: 100

SR1401

Good

Over: US13 US64

0.1 MI. N. OF JCT. SR1400, Martin, NC

Built 1998 Load: 35.3 t ADT: 390

SR1300

Good

Over: US13/64

0.4 MI. S. JCT. SR1350, Martin, NC

Built 1999 Load: 36.2 t ADT: 240

US13/64 EB

Good

Over: US17

2.0MI.E. OF JCT.NC125, Martin, NC

Built 1999 Load: 36.2 t ADT: 4,950

SR1159

Good

Over: US13 US64

0.7 MI. S OF JCT. SR1404, Martin, NC

Built 1998 Load: 37.1 t ADT: 700

US13/64W

Good

Over: COLLIE SWAMP

1.3MI.W. OF JCT.US64 ALT, Martin, NC

Built 1999 Load: 37.1 t ADT: 4,750

US13N US64E

Good

Over: CSX RAILROAD

0.5 MI.W.JCT US13/64 ALT, Martin, NC

Built 1999 Load: 37.1 t ADT: 4,200

US13S US64W

Good

Over: CSX R/R

.2 MI SE OF JCT. US64 A, Martin, NC

Built 1999 Load: 37.1 t ADT: 4,200

SR1501

Good

Over: SWEETWATER CREEK

1.9 MI N JCT US17, Martin, NC

Built 2012 Load: 38.1 t ADT: 1,200

SR1563

Good

Over: CR. OFF ROANOKE RIVER

0.7 MI.S.JCT.SR1557, Martin, NC

Built 2016 Load: 38.1 t ADT: 210

SR1114

Good

Over: SMITHWICK CREEK

0.2 MI. W. JCT. SR1114, Martin, NC

Built 2013 Load: 38.1 t ADT: 360

SR1336

Good

Over: CONOHO CREEK

1.0 MI.S.JCT.NC903, Martin, NC

Built 2014 Load: 38.1 t ADT: 140

SR1113

Good

Over: BEAR GRASS SWAMP

.05 MI S. JCT. SR1112, Martin, NC

Built 2013 Load: 38.1 t ADT: 500

SR1002

Good

Over: CONOHO CREEK TRIBUTARY 2

0.2 MI S.JCT SR1320, Martin, NC

Built 2014 Load: 38.1 t ADT: 830

SR1001

Good

Over: US13/64

1 MI.N. OF JCT. SR1119, Martin, NC

Built 1998 Load: 38.1 t ADT: 3,000

SR1139

Good

Over: US13/64

0.4 MI. N. OF JCT. SR1113, Martin, NC

Built 1999 Load: 38.1 t ADT: 440

NC125

Good

Over: US13 US64

0.3 MI.S. JCT. SR1126, Martin, NC

Built 1999 Load: 38.1 t ADT: 6,200

US13 US64E

Good

Over: US64ALT

2 MI.E. OF JCT. SR1159, Martin, NC

Built 1999 Load: 39.0 t ADT: 9,000

US13N US64E

Good

Over: SR1138

1MI.E. OF JCT.US64ALT, Martin, NC

Built 1999 Load: 39.0 t ADT: 4,450

US13 US64W

Good

Over: SR1138

1 MI.E.JCT.US64 ALT., Martin, NC

Built 1999 Load: 39.0 t ADT: 4,450

US64W

Good

Over: SWEETWATER CREEK

0.7 MI. W. OF JCT. SR1500, Martin, NC

Built 1992 Load: 39.9 t ADT: 4,750

SR1113

Good

Over: TURKEY SWAMP

0.1 MI. E. JCT. SR1155, Martin, NC

Built 2013 Load: 41.7 t ADT: 320

NC11

Good

Over: CONOHO CREEK

0.8 MI.N. OF JCT.NC125, Martin, NC

Built 1966 Load: 41.7 t ADT: 5,300

SR1552

Good

Over: BRANCH COOPER SWAMP

0.4 MI. N. JCT. SR1510, Martin, NC

Built 2013 Load: 41.7 t ADT: 560

SR1159

Good

Over: FLAT SWAMP

0.2 MI.N. JCTS. SR1158, Martin, NC

Built 2020 Load: 41.7 t ADT: 1,100

SR1319

Good

Over: BR.OF CONOHO CREEK

2.1 MI N. OF JCT NC142, Martin, NC

Built 2013 Load: 41.7 t ADT: 90

SR1159

Good

Over: HUSKANAW SWAMP

100 FT. S. JCT. SR1404, Martin, NC

Built 2014 Load: 41.7 t ADT: 700

US13N US17N US64E

Good

Over: CSX RAIL ROAD

0.9 MI. E. JCT.. US17, Martin, NC

Built 2003 Load: 41.7 t ADT: 6,500

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

Related

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

Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.