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

SR3039

Unknown

Over: SR3039, LITTLE ALAM. CRK

0.6 MI. N. JCT. SR1005, Guilford, NC

Built 2003 ADT: 2,500

SR3039

Unknown

Over: SR3039,LITLE ALAMANCE CK

0.6 MI. N. JCT. SR1005, Guilford, NC

Built 2003 ADT: 2,500

SR3029E

Unknown

Over: SR3029

0.6 MI. N. JCT. SR1005, Guilford, NC

Built 2003 ADT: 1,550

SR3029W

Unknown

Over: SR3029

2.0 MI. N. JCT. SR1005, Guilford, NC

Built 2003 ADT: 1,550

I85S

Unknown

Over: I85

0.7 MI. S. JCT. SR1117, Guilford, NC

Built 2001 ADT: 22,500

I73S, RAMP

Unknown

Over: I73 S RAMP

0.7 MI. N. JCT. SR1129, Guilford, NC

Built 2003 ADT: 22,500

I85N

Unknown

Over: I85 BUS

0.7 MI. N. JCT. SR1129, Guilford, NC

Built 2003 ADT: 28,250

I85N

Unknown

Over: I85, I73, US421

0.3 MI. W. JCT. US220, Guilford, NC

Built 2001 ADT: 6,875

US220S

Unknown

Over: I73, US220

0.3 MI.N.JCT.SR1392, Guilford, NC

Built 2003 ADT: 8,250

US220S COLL.

Unknown

Over: I73,US220

0.13 MI.N. JCT. SR1392, Guilford, NC

Built 2003 ADT: 11,250

US220S

Unknown

Over: I73, US220

0.3 MI. N. JCT. SR1392, Guilford, NC

Built 2003 ADT: 11,500

I73N,US220N

Unknown

Over: I73, US220

0.3 MI. N. JCT. SR1392, Guilford, NC

Built 2003 ADT: 16,500

I85N

Unknown

Over: I85, US421

0.4 MI. N. JCT. US220, Guilford, NC

Built 2003 ADT: 18,375

I85N,US421S

Unknown

Over: I85 , US421

0.7 MI. S. JCT. SR3300, Guilford, NC

Built 2003 ADT: 36,750

I85S,US421N

Unknown

Over: I85, US421

0.6 MI.S.JCT.SR3505, Guilford, NC

Built 2003 ADT: 36,750

SR3505

Unknown

Over: SR3505, SOUTHERN RAILROA

0.25 MI. N. JCT. SR3300, Guilford, NC

Built 2003 ADT: 3,100

SR3505

Unknown

Over: SR3505, SOUTHERN RAILROA

0.25 MI. N. JCT. SR3300, Guilford, NC

Built 2003 ADT: 3,100

US421S,SR3762S

Unknown

Over: SR3762

0.3 MI.S.JCT.SR3549, Guilford, NC

Built 2003 ADT: 16,250

SR3762S

Unknown

Over: SR3762

0.3 M.S.JCT.SR3549, Guilford, NC

Built 2003 ADT: 6,000

SR3762N

Unknown

Over: SR3762

0.3 MI.S.JCT.SR3549, Guilford, NC

Built 2003 ADT: 16,250

I85S

Unknown

Over: I85

1.33 MI N JCT. SR3329, Guilford, NC

Built 2003 ADT: 26,250

SR3762S,I85N,RAMP

Unknown

Over: SR3762

0.3 MI.S.JCT.SR3549, Guilford, NC

Built 2003 ADT: 8,125

I85N.RAMP

Unknown

Over: I85

0.4 MI. E. JCT. US421, Guilford, NC

Built 2001 ADT: 13,125

I85S

Unknown

Over: I85

0.95 MI. W. JCT. SR1005, Guilford, NC

Built 2003 ADT: 26,250

I40W,I85S

Unknown

Over: I40, I85 BUS

2.2 MI S. JCT US70, Guilford, NC

Built 2000 ADT: 39,000

I40W,I85S

Unknown

Over: I40, I85 BUS

0.4 MI. S. JCT. I40, I85, Guilford, NC

Built 2003 ADT: 39,000

I40W,I85S

Unknown

Over: I40, I85 BUS

0.4 MI. S. JCT. I40, I85, Guilford, NC

Built 2003 ADT: 39,000

I785S,I840S

Unknown

Over: I785, I840

0.92 MI. W. JCT. SR3045, Guilford, NC

Built 1999 ADT: 13,750

I40E

Unknown

Over: I40E

0.69 MI. S. JCT. SR1008, Guilford, NC

Built 2007 ADT: 56,500

I73S,I840S RAMP

Unknown

Over: I40W,I73/840 RAMP

0.61 MI. S. JCT. SR1008, Guilford, NC

Built 2007 ADT: 28,250

BURNT POPLAR ROAD

Unknown

Over: BURNT POPLAR ROAD

0.3 MI. S. JCT. SR1008, Guilford, NC

Built 2007 ADT: 2,700

US421S

Unknown

Over: I40E, US421S

0.73 MI. S. JCT. SR1008, Guilford, NC

Built 2008 ADT: 28,500

I40W

Unknown

Over: I40W

0.63 MI. S. JCT. SR1008, Guilford, NC

Built 2008 ADT: 56,500

I73S, I840S RAMP

Unknown

Over: I73, I840 SBL RAMP

0.5 MI. S. JCT. SR1008, Guilford, NC

Built 2008 ADT: 28,250

BURNT POPLAR ROAD

Unknown

Over: BURNT POPLAR ROAD

0.3 MI. S. JCT. SR1008, Guilford, NC

Built 2008 ADT: 2,700

I40W

Unknown

Over: I40

1.7 MI. S. JCT. SR2147, Guilford, NC

Built 2007 ADT: 49,000

I40W,US421N.RAMP

Unknown

Over: I40,US421

0.5 MI. E. JCT. SR1554, Guilford, NC

Built 2005 ADT: 10,333

BURNT POPLAR RD

Unknown

Over: BURNT POPLAR ROAD

0.3 MI. S. JCT. SR1008, Guilford, NC

Built 2007 ADT: 2,700

SR1008W

Unknown

Over: SR1008 & N.S.R.R.

0.95 MI. S. JCT. SR2147, Guilford, NC

Built 2007 ADT: 6,250

SR1008W

Unknown

Over: SR1008 & N.S.R.R.

0.95 MI. S. JCT. SR2147, Guilford, NC

Built 2007 ADT: 6,250

SR2147

Unknown

Over: SR2147

0.95 MI. N. JCT. SR1008, Guilford, NC

Built 2007 ADT: 17,000

SR2147

Unknown

Over: SR2147

1.6 MI. N. JCT. I40, Guilford, NC

Built 2007 ADT: 19,500

SR1541E

Unknown

Over: SR1541

0.6 MI. N. JCT. SR1424, Guilford, NC

Built 2000 ADT: 23,000

I74W,US311N

Unknown

Over: I74, US311

0.2 MI. E. JCT. SR1471, Guilford, NC

Built 2000 ADT: 19,000

I74W,US311N

Unknown

Over: I74, US311

1.1 MI. E. JCT. SR1278, Guilford, NC

Built 2000 ADT: 21,500

I74E,US311S

Unknown

Over: I74, US311

0.7 MI. W. JCT. SR1486, Guilford, NC

Built 2000 ADT: 23,500

SR2181

Unknown

Over: SR2181

0.8 MI. S. JCT. SR2137, Guilford, NC

Built 2007 ADT: 3,400

SR2181, BALLINGER

Unknown

Over: SR2181

0.8 MI. S. JCT. SR2137, Guilford, NC

Built 2007 ADT: 3,400

I73N,I840W

Unknown

Over: I73, I840

0.25 MI. E. JCT. SR2175, Guilford, NC

Built 2006 ADT: 22,250

I840E

Unknown

Over: I73,I840S.RAMP

0.25 MI. E. JCT. SR2137, Guilford, NC

Built 2006 ADT: 18,000

Showing 1,151-1,200 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.