County profile · official public datasets

Marion County, WV

193 public highway bridges tracked in the FHWA National Bridge Inventory: 48.2% rated Good, 30.6% Fair, 21.2% Poor.

193
Public bridges
48.2%
Good condition
21.2%
Poor condition

The verdict

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

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

35th
of 55 on Poor share
21.2%
Poor-condition share
193
public highway bridges
1977
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.

Marion County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Marion County ranks #35 of 55 West Virginia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 21.2%). Marion County, West Virginia contains 193 public highway bridges. Roughly 48.2% are rated “Good,” 30.6% “Fair,” and 21.2% “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

193

Public highway bridges in Marion County

Good condition

48.2%

93 of 193 rated 7-9

Fair condition

30.6%

59 of 193 rated 5-6

Poor condition

21.2%

41 of 193 rated 4 or below

In-state Poor-share rank

#35 of 55

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

Condition distribution

Share of 193 NBI-tracked bridges by lowest applicable component rating.

Good
48.2% (93)
Fair
30.6% (59)
Poor
21.2% (41)

Marion County's Poor-condition bridges carry 129,992 vehicle crossings a day

That is 18.1% of the county's reported daily bridge traffic on 21.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,171 crossings a day against 3,051 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 193 of 193 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

35.8% of Marion County's bridges have passed the 50-year mark

69 of the 193 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 48.2% 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 16.3% of the county's Poor-condition bridge traffic

INTERSTATE 79 SB over WV 310, built 1966, carries 21,200 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 41-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 129,992 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Marion County's bridges were built

193 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 46 of the county's bridges still in the inventory were built, which is 23.8% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1977) matches the West Virginia average (1980).

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

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

The 5 West Virginia counties nearest Marion County in number of bridges, with their condition splits. Its 21.2% Poor share is the 3rd-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1979 is in line with the group.

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

Bridge inventory size and condition shares for Marion County and the 5 West Virginia counties closest to it in inventory size
County Bridges Poor
Monongalia County 203 20.2%
Marion County (this page) 193 21.2%
Jackson County 191 23.6%
Randolph County 190 15.3%
Preston County 182 23.1%
Wood County 180 22.2%

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

Similar inventory size

Nearest county inventories outside WV (193 bridges here).

Similar average build year

Nearest mean year-built outside WV (1977 here).

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

All 193 Good 93 Fair 59 Poor 41

All bridges (193)

MARION CO RT 17

Good

Over: NORFOLK & SOUTHERN RR

0.24 MI EAST CO RT 17/12, Marion, WV

Built 1996 Load: 73.5 t ADT: 2,200

INTERSTATE 79

Good

Over: Mar. Co. 29/1

1.28 MI SOUTH US RT 250, Marion, WV

Built 1967 Load: 79.8 t ADT: 49,500

MARION CO RT 90/3

Poor

Over: WEST FORK RIVER

0.03 MI EAST US ROUTE 19, Marion, WV

Built 1911 Load: 0.0 t ADT: 350

MARION CO RT 73/16

Poor

Over: BOOTHS CREEK

0.01 MI WEST CO RT 73/73, Marion, WV

Built 1888 Load: 3.6 t ADT: 2

MARION CO RT 76

Poor

Over: LITTLE CREEK

0.15 MI SOUTH CO RT 73/6, Marion, WV

Built 1950 Load: 6.3 t ADT: 350

MARY ELLEN STREET

Poor

Over: PYLES FORK

ON MARY ELLEN ST MANN, Marion, WV

Built 1905 Load: 7.3 t ADT: 200

MARION CO RT 68/1

Poor

Over: PRICKETT CREEK

0.05 MI WEST CO RT 33, Marion, WV

Built 1917 Load: 10.0 t ADT: 50

EVEREST DRIVE

Poor

Over: Coal Run & Access Road

0.23 MI NORTH WV RT 310, Marion, WV

Built 1956 Load: 10.0 t ADT: 2,000

MARION CO RT 91

Poor

Over: PLUM RUN

0.01 MI WEST CO RT 18, Marion, WV

Built 1911 Load: 11.8 t ADT: 400

MARION CO RT 17/18

Poor

Over: PAW PAW CREEK

0.01 MI WEST CO RT 17, Marion, WV

Built 1925 Load: 15.4 t ADT: 50

MARION CO RT 56

Poor

Over: BOOTHS CREEK

0.01 MI WEST MARION CR 58, Marion, WV

Built 1971 Load: 16.3 t ADT: 2,600

MARION CO 73/6

Poor

Over: PRICKETT CREEK

0.02 MI NORTH CO RT 73/19, Marion, WV

Built 1923 Load: 16.3 t ADT: 650

WV ROUTE 218

Poor

Over: RAVINE

0.07 MI SOUTH CO RT 20, Marion, WV

Built 1953 Load: 16.3 t ADT: 2,700

MARION CO. 250/58

Poor

Over: BUFFALO CREEK

0.02 MI EAST CO RT 250/32, Marion, WV

Built 1926 Load: 16.3 t ADT: 50

MARION CO RT 1

Poor

Over: PYLES FORK

0.11 MI WEST US RT 250, Marion, WV

Built 1926 Load: 18.1 t ADT: 3,300

MARION CO RT 19/6

Poor

Over: BRANCH OF PARKER RUN

0.46 MI SOUTH CO RT 19/5, Marion, WV

Built 1983 Load: 18.1 t ADT: 90

MARION CO. 74

Poor

Over: LITTLE CREEK

0.10 MI SOUTH CO RT 73/1, Marion, WV

Built 1922 Load: 19.0 t ADT: 400

WV ROUTE 218

Poor

Over: HELENS RUN

0.03 MI NORTH CO RT 218/2, Marion, WV

Built 1939 Load: 19.0 t ADT: 5,400

MARION COUNTY 18

Poor

Over: PLUM RUN

0.18 MI SOUTH CO RT 18/1, Marion, WV

Built 1925 Load: 20.0 t ADT: 350

MARION CO RT 1

Poor

Over: WARRIOR FORK

0.09 MI WEST CO RT 1/3, Marion, WV

Built 1926 Load: 21.8 t ADT: 750

MARION CO RT 15/7

Poor

Over: HELENS RUN

0.01 MI NORTH WV 218, Marion, WV

Built 1924 Load: 21.8 t ADT: 50

MARION COUNTY 25/9

Poor

Over: LITTLE PAW PAW CREEK

0.01 MI NORTH CO RT 25, Marion, WV

Built 1925 Load: 21.8 t ADT: 50

MARION CO RT 25

Poor

Over: PAW PAW CREEK

0.01 MI NORTH CO RT 25/5, Marion, WV

Built 1920 Load: 21.8 t ADT: 450

MARION CO RT 54/6

Poor

Over: MILL FALL RUN

0.01 MI SOUTH CO RT 54, Marion, WV

Built 1916 Load: 21.8 t ADT: 300

WV ROUTE 218

Poor

Over: HELENS RUN

0.15 MI NORTH CO RT 52, Marion, WV

Built 1924 Load: 21.8 t ADT: 4,000

WV ROUTE 218

Poor

Over: HELENS RUN

0.34 MI SOUTH CO RT 15/5, Marion, WV

Built 1924 Load: 21.8 t ADT: 4,000

MARION CO RT 7

Poor

Over: BUFFALO CREEK

0.07 MI WEST CO RT 1, Marion, WV

Built 1988 Load: 22.7 t ADT: 1,400

COUNTY ROUTE 73

Poor

Over: PRICKETT CREEK

0.12 MI SOUTH CR 72, Marion, WV

Built 1955 Load: 22.7 t ADT: 6,900

MARION CO RT 80/2

Poor

Over: PRICKETT CREEK

0.03 MI WEST CO RT 80, Marion, WV

Built 1949 Load: 23.6 t ADT: 600

WV ROUTE 218

Poor

Over: BENNEFIELD PRONG

0.21 MI NORTH CO RT 17, Marion, WV

Built 1924 Load: 25.4 t ADT: 1,400

WV ROUTE 310

Poor

Over: GLADY CREEK

0.01 MI NORTH CO RT 31/14, Marion, WV

Built 1926 Load: 28.1 t ADT: 1,200

MARION CO RT 24

Poor

Over: PAW PAW CREEK

0.02 MI SOUTH CO RT 17, Marion, WV

Built 1949 Load: 29.9 t ADT: 90

MARION CO RT 91/1

Poor

Over: BUFFALO CREEK

0.09 MI EAST CO RT 91, Marion, WV

Built 1989 Load: 30.8 t ADT: 300

I 79 NB

Poor

Over: Marion CR 33

2.13 MI NORTH WV RT 310, Marion, WV

Built 1968 Load: 32.7 t ADT: 15,950

INTERSTATE 79 SB

Poor

Over: WV 310

1.70 MI NORTH CO RT 64/2, Marion, WV

Built 1966 Load: 33.6 t ADT: 21,200

MARION CO RT 3

Poor

Over: RT BR OF BARTHOLOMEW FK

0.06 MI NORTH CO RT 4, Marion, WV

Built 1936 Load: 34.5 t ADT: 50

I 79 SB

Poor

Over: Marion CR 33

2.13 MI NORTH WV RT 310, Marion, WV

Built 1968 Load: 36.3 t ADT: 15,950

INTERSTATE 79 NB

Poor

Over: Marion County Rt. 76

1.60 MI NORTH CO RT 33, Marion, WV

Built 1967 Load: 53.5 t ADT: 15,600

INTERSTATE 79 SB

Poor

Over: Marion County Rt. 76

1.60 MI NORTH CO RT 33, Marion, WV

Built 1967 Load: 53.5 t ADT: 16,200

COUNTY ROUTE 34

Poor

Over: COAL LICK RUN

0.03 MI NORTH CO RT 9, Marion, WV

Built 1988 Load: 58.0 t ADT: 300

MARION CO RT 91

Poor

Over: MAHAN RUN

0.01 MI WEST CO RT 250/8, Marion, WV

Built 1993 Load: 60.8 t ADT: 1,200

MARION CO RT 48/4

Poor

Over: LITTLE BINGAMON CREEK

0.01 MI SOUTH CO RT 48, Marion, WV

Built 1983 Load: 63.5 t ADT: 10

US ROUTE 19

Poor

Over: MILL FALL RUN

0.10 MI SOUTH CO RT 54, Marion, WV

Built 1925 Load: 89.8 t ADT: 3,100

Read our methodology - how this data is sourced, computed, and verified.

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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.