State profile · Near national median SD

North Carolina bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in North Carolina — drawn straight from the FHWA National Bridge Inventory.

18,901
Public bridges
35.8%
Good condition
6.2%
Poor condition
6.2%
Structurally deficient

Total Bridges

18,901

Public highway bridges in North Carolina

Good Condition

35.8%

6,773 bridges rated 7-9

-14.2pp vs 50% benchmark

Poor Condition

6.2%

1,165 bridges rated 0-4

Structurally Deficient

6.2%

1,165 bridges flagged for repair priority

-0.8pp vs national avg 7.0%

North Carolina vs national bridge condition

North Carolina — Good condition share 35.8%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

North Carolina — Structurally deficient share 20.5%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

North Carolina vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below North Carolina on the same metric.

45

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396

55

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851
Selected

37

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

15

Hawaii

6.47% top marginal rate
Structure
Progressive
Burden @ $100K
$1,206

30

Montana

6.70% top marginal rate
Structure
Progressive
Burden @ $100K
$5,122

Bridges Needing Most Attention in North Carolina

Six lowest-condition bridges in North Carolina, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in North Carolina

I 77 SBL

Unknown

Over: I-77

0.1 MI. W. JCT. SR1914, Iredell, NC

Built 1973 ADT: 18,750

US 64 E

Unknown

Over: US64

8 MI. E. JCT. SR2158, Iredell, NC

Built 1969 ADT: 3,300

US 64 E

Unknown

Over: US64

0.2 MI. N. JCT. SR2209, Iredell, NC

Built 1969 ADT: 3,000

I 77 S

Unknown

Over: I77

0.2 MI. E. JCT. SR1979, Iredell, NC

Built 1973 ADT: 19,000

I 77 N

Unknown

Over: I77

0.3 MI. W. JCT. SR1886, Iredell, NC

Built 1973 ADT: 17,000

I 77 S

Unknown

Over: I77

0.3 MI. E. JCT. SR1852, Iredell, NC

Built 1972 ADT: 15,000

I 77 N

Unknown

Over: I77

0.2 MI. W. JCT. SR1821, Iredell, NC

Built 1973 ADT: 17,000

I 77 N

Unknown

Over: I77

0.6 MI. W. JCT. SR1824, Iredell, NC

Built 1973 ADT: 16,000

EAST WISE STREET

Unknown

Over: ALEX. RR, NSRR, WISE ST.

0.05 MI. S. JCT. SR1420, Iredell, NC

Built 2011 ADT: 200

SR 2527

Unknown

Over: SR2527

1.1 MI. E. JCT. SR2359, Iredell, NC

Built 2010 ADT: 200

SR2527

Unknown

Over: SR2527

1.1 MI. E. JCT. SR2359, Iredell, NC

Built 2010 ADT: 200

US 21 N

Unknown

Over: US 21

.9 MI.W.JCT.I-77, Iredell, NC

Built 2014 ADT: 15,250

I 40 W RAMP

Unknown

Over: I-40 W. ACCESS RAMP

0.15 MI. N. JCT. I-40, Iredell, NC

Built 2014 ADT: 19,250

I 40 W RAMP

Unknown

Over: I-40W RAMP

0.2 MI. E. JCT. I-77, Iredell, NC

Built 2015 ADT: 11,750

I40W RAMP

Unknown

Over: I40W RAMP

0.2 MI. E. JCT. I77, Iredell, NC

Built 2016 ADT: 8,125

I-40 EB

Unknown

Over: I-40

0.79 MI. N, MOCKSVILLE RD, Iredell, NC

Built 2023

I-77

Unknown

Over: I-77

1.6MI W/O OLD MOCKSVILLE, Iredell, NC

Built 2023 ADT: 5,000

I-77 EXIT RAMP

Unknown

Over: I77, I40, I77 EXIT

0.2 MI.E. JCT. I-40, Iredell, NC

Built 2023

TUNNEL ROAD

Unknown

Over: TUNNEL RD

0.2 ML N. JCT US 3, Iredell, NC

Built 2021 ADT: 50

US 74 W

Unknown

Over: US74

0.2 MI.S.JCT.SR1532, Jackson, NC

Built 1975 ADT: 11,500

SR 1531 S

Unknown

Over: SR1531

1.6 MI.W.JCT.US441, Jackson, NC

Built 1976 ADT: 2,000

SR 1531 SBL

Unknown

Over: SR1531

1.6 MI.W.JCT.US441, Jackson, NC

Built 1976 ADT: 2,000

SR 1383

Unknown

Over: SR1383

.7 MI.N.JCT.US441, Jackson, NC

Built 1973 ADT: 350

SR1383

Unknown

Over: SR1383

.7 MI.N.JCT.US441, Jackson, NC

Built 1973 ADT: 340

SR1380

Unknown

Over: SR1380

0.5 MI.W.JCT.SR1513, Jackson, NC

Built 1973 ADT: 200

SR1380

Unknown

Over: SR1380

.5 MI.W.JCT.SR1513, Jackson, NC

Built 1973 ADT: 200

ACCESS RD

Unknown

Over: RR,ACCESS RD.,SCOTT CRK

.1 MI.S.JCT.US23B, Jackson, NC

Built 1986 ADT: 20

US 23 N,US 74 N

Unknown

Over: US23,74

0.1 MI.S.JCT.US23B,74, Jackson, NC

Built 1973 ADT: 13,750

SR1513 EBL

Unknown

Over: SR1513

1.7 MI.S.JCT.US23B, Jackson, NC

Built 1973 ADT: 2,700

SR 1513 E

Unknown

Over: SR1513

1.7 MI.S.JCT.US23B, Jackson, NC

Built 1973 ADT: 2,700

SR1439

Unknown

Over: SR1439

1 MI.S.JCT.US23BUS., Jackson, NC

Built 1973 ADT: 270

SR1439

Unknown

Over: SR1439

1 MI.S.JCT.US23BUS, Jackson, NC

Built 1973 ADT: 270

SR1443

Unknown

Over: SR1443

.4 MI.S.JCT.US23B, Jackson, NC

Built 1973 ADT: 1,200

SR 1443

Unknown

Over: SR1443

.4 MI.S.JCT.US23B, Jackson, NC

Built 1973 ADT: 1,200

SR1432

Unknown

Over: SR1432,SCOTT CREEK.,SO.R

.2 MI.S.JCT.US23BUS., Jackson, NC

Built 1973 ADT: 3,700

SR1432

Unknown

Over: SR1432,SCOTT CREEK,SO.RR

.2 MI.S.JCT.US23BUS, Jackson, NC

Built 1973 ADT: 3,700

US23 E

Unknown

Over: US23,74

.1 MI.S.JCT.SR1386, Jackson, NC

Built 1973 ADT: 11,500

SR 1705

Unknown

Over: SCOTT CRK,SR1705,SO. RR,

.1 MI.S.JCT.SR1538, Jackson, NC

Built 2016 ADT: 330

NC 107 N

Unknown

Over: NC107

0.25MI.E.SUMMIT LN., Jackson, NC

Built 2016 ADT: 11,000

NC42N

Unknown

Over: NC42

JCT. OF US70 & NC42E, Johnston, NC

Built 1966 ADT: 17,500

NC-42

Unknown

Over: NC42

JCT. US70 & NC42 WBL, Johnston, NC

Built 1966 ADT: 20,000

I95S

Unknown

Over: I95

0.9MI.S.JCT.US301, Johnston, NC

Built 1958 ADT: 32,500

I95S

Unknown

Over: I95

0.24 MI E. OF JCT SR 2398, Johnston, NC

Built 1990 ADT: 20,250

I95S

Unknown

Over: I95

0.1M.N.JCT.NC50&NC242, Johnston, NC

Built 2002 ADT: 26,000

I95S

Unknown

Over: I95

0.6 MI.S. JCT. SR1207, Johnston, NC

Built 1957 ADT: 20,750

I95S

Unknown

Over: I-95

0.5 MI. N. JCT. SR1223, Johnston, NC

Built 1955 ADT: 20,750

I95S

Unknown

Over: I95

0.4 MI.E. JCT. SR2560, Johnston, NC

Built 1955 ADT: 21,250

I95S

Unknown

Over: I95

0.13 MI. N. JCT. SR1009, Johnston, NC

Built 1957 ADT: 18,500

I95S

Unknown

Over: I95

.5M E. JCT. US301, Johnston, NC

Built 2004 ADT: 21,500

I95S

Unknown

Over: I95

0.1 MI.E. OF JCT. SR2502, Johnston, NC

Built 1955 ADT: 22,250

Showing 1,451-1,500 of 18,901 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.