County profile · official public datasets

Harrison County, WV

256 public highway bridges tracked in the FHWA National Bridge Inventory: 32% rated Good, 43% Fair, 25% Poor.

256
Public bridges: 32%
Good condition: 25%
Poor condition

The verdict

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

Harrison County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

44th
of 55 on Poor share: 25%
Poor-condition share: 256
public highway bridges: 1969
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.

Harrison County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Harrison County ranks #44 of 55 West Virginia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 25%). Harrison County, West Virginia contains 256 public highway bridges. Roughly 32% are rated “Good,” 43% “Fair,” and 25% “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

256

Public highway bridges in Harrison County

Good condition

32%

82 of 256 rated 7-9

Fair condition

43%

110 of 256 rated 5-6

Poor condition

25%

64 of 256 rated 4 or below

In-state Poor-share rank

#44 of 55

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

Condition distribution

Share of 256 NBI-tracked bridges by lowest applicable component rating.

Good

32% (82)

Fair

43% (110)

Poor

25% (64)

Harrison County's Poor-condition bridges carry 312,645 vehicle crossings a day

That is 22.7% of the county's reported daily bridge traffic on 25% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 4,885 crossings a day against 4,294 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 256 of 256 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

48.4% of Harrison County's bridges have passed the 50-year mark

124 of the 256 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 32% 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 8.3% of the county's Poor-condition bridge traffic

US ROUTE 50 over CSX RAILBED, built 1977, carries 26,100 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 64-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 312,645 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

1
1900s

1
1910s

24
1920s

42
1930s

3
1940s

5
1950s

8
1960s

20
1970s

36
1980s

27
1990s

34
2000s

29
2010s

23
2020s

3

What this shows Construction peaked in the 1920s, when 42 of the county's bridges still in the inventory were built, which is 16.4% of those with a recorded year. That cohort is now 95 to 104 years old in the 2024 inventory. Its average build year is 1969, 11 years older than the West Virginia average of 1980.

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

The 5 West Virginia counties nearest Harrison County in number of bridges, with their condition splits. Its 25% Poor share is the 5th-lowest of these 6. Its average build year of 1969 against a peer-group mean of 1984 is 15 years older.

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

Bridge inventory size and condition shares for Harrison County and the 5 West Virginia counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Harrison County (this page)	256	32%	43%	25%	1969
Logan County	236	23.7%	52.5%	23.7%	1989
McDowell County	225	4%	64.4%	31.6%	1981
Raleigh County	224	4.9%	70.5%	24.6%	1983
Fayette County	211	19%	67.8%	13.3%	1982
Cabell County	207	25.1%	57.5%	17.4%	1984

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

Similar inventory size

Nearest county inventories outside WV (256 bridges here).

Clayton County, IA · 256 bridges
Brown County, KS · 256 bridges
Chemung County, NY · 256 bridges
Chenango County, NY · 256 bridges

Similar average build year

Nearest mean year-built outside WV (1969 here).

Cook County, IL · avg 1969 · 1,721 bridges
Fresno County, CA · avg 1969 · 916 bridges
Cuyahoga County, OH · avg 1969 · 871 bridges
Ventura County, CA · avg 1969 · 501 bridges

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

All 256 Good 82 Fair 110 Poor 64

All bridges (256)

Sort:

Harrison County Bridge Snapshot

Condition distribution

Harrison County's Poor-condition bridges carry 312,645 vehicle crossings a day

48.4% of Harrison County's bridges have passed the 50-year mark

One structure carries 8.3% of the county's Poor-condition bridge traffic

How Harrison County compares with West Virginia'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 (256)

HARRISON CO RT 5/9

HARRISON CO RT 28

COUNTY ROUTE 25/4

HARRISON CO RT 7/2

WV ROUTE 279

INTERSTATE 79 NB

HARRISON CO RT 32

INTERSTATE 79

Harr. Co. 23/9

Harr Co 19/1

HARRISON CR 20/26

WV ROUTE 20

HARRISON CO RT 22

Harr. Co. 23/9

HARRISON CO RT 22

HARRISON CO RT 3/8

HARR CO RT 5

US ROUTE 50

WV ROUTE 98

WV 58

HARR CO 12

COUNTY ROUTE 19/11

HARRISON CO RT 52

INTERSTATE 79

US ROUTE 19

HARRISON CO RT 31

HARRISON CO RT 29

HARRISON CO RT 8

HARRISON CO RT 8

HARR CO RT 20/19

HARRISON CO RT 48

HARRISON CO 9

Har. CR 9 (T)

ACCESS ROAD

HARRISON CR 19/4

HARRISON CR 23/3

HARRISON CR 57/1

HARRISON CR 24/30

HARRISON CO RT 46

HARRISON CR 23/7

WV 270

HAR CO RT 50/76

HARR CO RT 50/61

MILL STREET

HARRISON CO RT 5

HARRISON CO 24/34

HOPE STREET

HARRISON CO RT 9

HARRISON CO 50/6

HRR CO RT 48/16

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