County profile · official public datasets

Warren County, NC

84 public highway bridges tracked in the FHWA National Bridge Inventory: 47.6% rated Good, 47.6% Fair, 4.8% Poor.

84
Public bridges: 47.6%
Good condition: 4.8%
Poor condition

The verdict

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

Warren County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

52nd
of 100 on Poor share: 4.8%
Poor-condition share: 84
public highway bridges: 1985
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.

Warren County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Warren County ranks #52 of 100 North Carolina counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.8%). Warren County, North Carolina contains 84 public highway bridges. Roughly 47.6% are rated “Good,” 47.6% “Fair,” and 4.8% “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.

Total bridges

Public highway bridges in Warren County

Good condition

47.6%

40 of 84 rated 7-9

Fair condition

47.6%

40 of 84 rated 5-6

Poor condition

4.8%

4 of 84 rated 4 or below

In-state Poor-share rank

#52 of 100

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

Condition distribution

Share of 84 NBI-tracked bridges by lowest applicable component rating.

Good

47.6% (40)

Fair

47.6% (40)

Poor

4.8% (4)

Warren County's Poor-condition bridges carry 4,210 vehicle crossings a day

That is 2.5% of the county's reported daily bridge traffic on 4.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,053 crossings a day against 1,721 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 84 of 84 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

38.1% of Warren County's bridges have passed the 50-year mark

32 of the 84 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 47.6% 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 85.5% of the county's Poor-condition bridge traffic

NC903 over LAKE GASTON, built 1961, carries 3,600 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 4,210 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

1
1930s

1
1940s

1
1950s

16
1960s

10
1970s

5
1980s

8
1990s

12
2000s

12
2010s

16
2020s

2

What this shows Construction peaked in the 1950s, when 16 of the county's bridges still in the inventory were built, which is 19% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1985) matches the North Carolina average (1986).

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

The 5 North Carolina counties nearest Warren County in number of bridges, with their condition splits. Its 4.8% Poor share is the 4th-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1990 is 5 years older.

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

Bridge inventory size and condition shares for Warren County and the 5 North Carolina counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Davie County	93	33.3%	62.4%	4.3%	1982
Caswell County	90	58.9%	35.6%	5.6%	1991
Warren County (this page)	84	47.6%	47.6%	4.8%	1985
Northampton County	83	31.3%	65.1%	3.6%	1981
Jones County	82	51.2%	47.6%	1.2%	1996
Hyde County	75	44%	49.3%	6.7%	1998

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 Warren 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 Warren County, both outside North Carolina so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside NC (84 bridges here).

Chaffee County, CO · 84 bridges
Elbert County, GA · 84 bridges
Glynn County, GA · 84 bridges
Paulding County, GA · 84 bridges

Similar average build year

Nearest mean year-built outside NC (1985 here).

Hillsborough County, FL · avg 1985 · 840 bridges
Lancaster County, NE · avg 1985 · 661 bridges
Nueces County, TX · avg 1985 · 528 bridges
Grayson County, TX · avg 1985 · 513 bridges

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

All 84 Good 40 Fair 40 Poor 4

All bridges (84)

Sort:

Warren County Bridge Snapshot

Condition distribution

Warren County's Poor-condition bridges carry 4,210 vehicle crossings a day

38.1% of Warren County's bridges have passed the 50-year mark

One structure carries 85.5% of the county's Poor-condition bridge traffic

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

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (84)

SR1512

SR1532

SR1641

SR1118

SR1223

SR1219

SR1606

SR1526

SR1107

SR1509

SR1305

SR1307

SR1511

US1

SR1210

US158 BUS

US401

I85

I85

I85

SR1513

NC903

NC903

SR1362

US158BYP

SR1112

SR1237

SR1224

US401

US1 US401

SR1210

SR1312

SR1100

SR1115

SR1528

SR1332

SR1325

SR1112

SR1512

SR1501

I85

US158 BUS.

SR1707

SR1629

NC58

SR1133

SR1510

SR1512

SR1100

SR1306

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