County profile · official public datasets

Boone County, WV

131 public highway bridges tracked in the FHWA National Bridge Inventory: 23.7% rated Good, 60.3% Fair, 16% Poor.

131
Public bridges
23.7%
Good condition
16%
Poor condition

The verdict

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

Boone County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

Top 44%
lowest Poor share in state
16%
Poor-condition share
131
public highway bridges
1986
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.

Boone County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Boone County ranks #24 of 55 West Virginia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 16%). Boone County, West Virginia contains 131 public highway bridges. Roughly 23.7% are rated “Good,” 60.3% “Fair,” and 16% “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

131

Public highway bridges in Boone County

Good condition

23.7%

31 of 131 rated 7-9

Fair condition

60.3%

79 of 131 rated 5-6

Poor condition

16%

21 of 131 rated 4 or below

In-state Poor-share rank

#24 of 55

Among West Virginia counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 131 NBI-tracked bridges by lowest applicable component rating.

Good
23.7% (31)
Fair
60.3% (79)
Poor
16% (21)

Boone County's Poor-condition bridges carry 39,682 vehicle crossings a day

That is 16.4% of the county's reported daily bridge traffic on 16% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,890 crossings a day against 1,102 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 131 of 131 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

19.1% of Boone County's bridges have passed the 50-year mark

25 of the 131 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 23.7% 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 27.5% of the county's Poor-condition bridge traffic

US 119 NBL over LITTLE COAL RIVER, built 1981, carries 10,900 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 21-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 39,682 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Boone County's bridges were built

131 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1980s, when 34 of the county's bridges still in the inventory were built, which is 26% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1986, 6 years newer than the West Virginia average of 1980.

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

How Boone County compares with West Virginia's closest counties by inventory size

The 5 West Virginia counties nearest Boone County in number of bridges, with their condition splits. Its 16% Poor share is the 3rd-lowest of these 6. Its average build year of 1986 against a peer-group mean of 1980 is 6 years newer.

Showing the 5 closest of 54 West Virginia counties eligible for comparison.

Bridge inventory size and condition shares for Boone County and the 5 West Virginia counties closest to it in inventory size
County Bridges Poor
Mason County 137 16.1%
Putnam County 135 15.6%
Hardy County 131 8.4%
Boone County (this page) 131 16%
Roane County 130 26.2%
Ritchie County 127 26.8%

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 Boone 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 Boone County, both outside West Virginia so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside WV (131 bridges here).

Similar average build year

Nearest mean year-built outside WV (1986 here).

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

All 131 Good 31 Fair 79 Poor 21

Good-condition bridges (31)

WV 85

Good

Over: LACEY BRANCH

0.01 MILE N. OF CR 112, Boone, WV

Built 2007 Load: 27.2 t ADT: 1,200

CR 119/36

Good

Over: TURTLE CREEK

0.02 MI. S. OF US 119, Boone, WV

Built 1975 Load: 29.0 t ADT: 40

CR 17/11

Good

Over: SPRUCE FK CSX RR

0.02 Mile E of WV17, Boone, WV

Built 2016 Load: 29.0 t ADT: 100

CR 119/37

Good

Over: TURTLE CREEK

0.03 MI S OF US 119, Boone, WV

Built 1975 Load: 32.7 t ADT: 50

CR 3/14

Good

Over: BIG COAL RIVER

0.10 MI S OF WV 3, Boone, WV

Built 2015 Load: 34.5 t ADT: 10

WV 94 Lens Ck Rd

Good

Over: Short Creek

0.37 Mi. N of WV 3, Boone, WV

Built 2021 Load: 34.5 t ADT: 3,700

CR 3/9

Good

Over: BIG COAL RIVER

0.05 MI S OF WV 3, Boone, WV

Built 2017 Load: 35.4 t ADT: 80

CR 10

Good

Over: MUD RIVER

6.0 MI W OF CR 10/1, Boone, WV

Built 1980 Load: 36.3 t ADT: 20

WV 85

Good

Over: ROCKLICK BRANCH

4.34 MI N OF CR 11/4, Boone, WV

Built 1996 Load: 40.8 t ADT: 1,600

CO RT 3/35

Good

Over: ROCK CREEK

0.01 MI NORTH OF WV3, Boone, WV

Built 1997 Load: 44.4 t ADT: 450

CR 85/23

Good

Over: POND FORK

0.01 MI S OF WV 85, Boone, WV

Built 2022 Load: 44.4 t ADT: 30

COUNTY ROUTE 85/1

Good

Over: POND FORK

0.04 MILE S OF WV85, Boone, WV

Built 2001 Load: 45.4 t ADT: 150

WV 3

Good

Over: WHITEOAK CREEK

0.02 MI E OF CR 14, Boone, WV

Built 2018 Load: 45.4 t ADT: 2,100

WV 85

Good

Over: ROBINSON CREEK

0.01 MI. S. OF CR 85/7, Boone, WV

Built 2009 Load: 46.3 t ADT: 2,800

CR 119/9

Good

Over: LICK CREEK

0.05 MI N OF CR 119/7, Boone, WV

Built 1998 Load: 47.2 t ADT: 40

CR 119/52

Good

Over: ROCK CREEK

0.04 MI N OF WV 3, Boone, WV

Built 1998 Load: 47.2 t ADT: 30

CR119/43 BENTLEY

Good

Over: TURTLE CREEK

0.25 MI S OF US119NB, Boone, WV

Built 2022 Load: 47.2 t ADT: 10

WV 3

Good

Over: DRAWDY CREEK

0.03 MI E OF CR 1/2, Boone, WV

Built 2004 Load: 49.9 t ADT: 2,500

WV ROUTE 3

Good

Over: ROCK CREEK

0.15 MI. E.OF CR 119/52, Boone, WV

Built 2010 Load: 52.6 t ADT: 4,000

WV 85

Good

Over: SKIN FORK OF POND FORK

0.01 MI SOUTH CR 11/4, Boone, WV

Built 2012 Load: 52.6 t ADT: 1,500

WV 3

Good

Over: SENG CREEK

0.05 MI WEST OF CR 24, Boone, WV

Built 2022 Load: 52.6 t ADT: 2,100

CR 9

Good

Over: MEADOW FORK

0.01 MI W OF CR 22, Boone, WV

Built 2021 Load: 52.6 t ADT: 950

CR 119/7

Good

Over: LICK CREEK

0.07 MI W OF CR 119/9, Boone, WV

Built 2018 Load: 53.5 t ADT: 450

COUNTY ROUTE 5

Good

Over: HOPKINS FORK

3.91 MI N OF CR 12, Boone, WV

Built 1986 Load: 58.0 t ADT: 950

CR 119/3

Good

Over: LEFT FORK OF ROCK CREEK

0.82 MI E OF CR 119/2, Boone, WV

Built 2019 Load: 59.0 t ADT: 40

CR 5

Good

Over: SANDLICK CREEK

1.11 MI N OF CR 12, Boone, WV

Built 1995 Load: 60.8 t ADT: 3,500

COUNTY ROUTE 26

Good

Over: JAMES CREEK

2.57 MI S OF CR 26/1, Boone, WV

Built 1989 Load: 60.8 t ADT: 450

WV 85

Good

Over: CAZY CREEK

0.05 MI SOUTH OF CR 28/1, Boone, WV

Built 1995 Load: 60.8 t ADT: 3,100

CR 24

Good

Over: SENG CREEK

1.37 MI E OF WV 3, Boone, WV

Built 1995 Load: 63.5 t ADT: 1,100

CR 9

Good

Over: HEWITT CREEK

0.78 MI. W. OP. CR.9/2, Boone, WV

Built 1987 Load: 67.1 t ADT: 1,100

CR 24 SENG CR. RD.

Good

Over: Seng Creek

2.35 Mi. E of WV3, Boone, WV

Built 2022 Load: 88.9 t ADT: 10

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.