County profile · official public datasets

Monongalia County, WV

203 public highway bridges tracked in the FHWA National Bridge Inventory: 36.9% rated Good, 42.9% Fair, 20.2% Poor.

203
Public bridges
36.9%
Good condition
20.2%
Poor condition

The verdict

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

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

31st
of 55 on Poor share
20.2%
Poor-condition share
203
public highway bridges
1980
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.

Monongalia County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Monongalia County ranks #31 of 55 West Virginia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 20.2%). Monongalia County, West Virginia contains 203 public highway bridges. Roughly 36.9% are rated “Good,” 42.9% “Fair,” and 20.2% “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

203

Public highway bridges in Monongalia County

Good condition

36.9%

75 of 203 rated 7-9

Fair condition

42.9%

87 of 203 rated 5-6

Poor condition

20.2%

41 of 203 rated 4 or below

In-state Poor-share rank

#31 of 55

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

Condition distribution

Share of 203 NBI-tracked bridges by lowest applicable component rating.

Good
36.9% (75)
Fair
42.9% (87)
Poor
20.2% (41)

Monongalia County's Poor-condition bridges carry 927,950 vehicle crossings a day

That is 51.9% of the county's reported daily bridge traffic on 19.8% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 23,199 crossings a day against 4,323 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 202 of 203 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

40.9% of Monongalia County's bridges have passed the 50-year mark

83 of the 203 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 36.9% 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 64.7% of the county's Poor-condition bridge traffic

MON CO RT 19/25 over SCOTTS RUN, built 1930, carries 600,500 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 927,950 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Monongalia County's bridges were built

203 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 42 of the county's bridges still in the inventory were built, which is 20.7% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1980) matches the West Virginia average (1980).

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

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

The 5 West Virginia counties nearest Monongalia County in number of bridges, with their condition splits. Its 20.2% Poor share is the 4th-lowest of these 6. Its average build year of 1980 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 Monongalia County and the 5 West Virginia counties closest to it in inventory size
County Bridges Poor
Fayette County 211 13.3%
Cabell County 207 17.4%
Greenbrier County 207 13%
Monongalia County (this page) 203 20.2%
Marion County 193 21.2%
Jackson County 191 23.6%

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

Similar inventory size

Nearest county inventories outside WV (203 bridges here).

Similar average build year

Nearest mean year-built outside WV (1980 here).

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

All 203 Good 75 Fair 87 Poor 41

All bridges (203)

INTERSTATE 79 SB

Fair

Over: Mon. Co. 19/24

2.34 MI NORTH US RT 19, Monongalia, WV

Built 1972 Load: 36.3 t ADT: 15,650

MGL CO RT 39/1

Fair

Over: DUNKARD CREEK

0.02 MILES EAST WV RT 7, Monongalia, WV

Built 1998 Load: 36.3 t ADT: 200

US ROUTE 19

Fair

Over: MON RIVER WV 100 & RR

0.06 MI NORTH MGL CO 7/20, Monongalia, WV

Built 2004 Load: 37.2 t ADT: 31,200

WV ROUTE 7

Fair

Over: DECKERS CREEK

0.05 MI EAST US ROUTE 119, Monongalia, WV

Built 1992 Load: 38.1 t ADT: 3,900

MONONGALIA CR 37/8

Fair

Over: INDIAN CREEK

0.01 MI WEST CO RT 37, Monongalia, WV

Built 1976 Load: 38.1 t ADT: 10

MON CO RT 25

Fair

Over: DAYS RUN

0.39 MI SOUTH CO RT 25/4, Monongalia, WV

Built 1978 Load: 39.0 t ADT: 350

INTERSTATE 79 SB

Fair

Over: US 19

2.34 MI SOUTH CO RT 19/24, Monongalia, WV

Built 1971 Load: 39.0 t ADT: 15,600

INTERSTATE 79 NB

Fair

Over: US 19 & Dents Run

2.34 MI SOUTH CO RT 19/24, Monongalia, WV

Built 1971 Load: 39.0 t ADT: 15,600

MONONGALIA CO 59/3

Fair

Over: WEST RUN

0.36 MI WEST MGL CO RT 59, Monongalia, WV

Built 2007 Load: 39.0 t ADT: 80

MON CO Rt. 67

Fair

Over: I-68 (X)

0.02 MI NORTH CO RT 857, Monongalia, WV

Built 1976 Load: 39.9 t ADT: 4,400

WV RT. 43

Fair

Over: Rubles Run

0.2 miles S of PA line, Monongalia, WV

Built 2011 Load: 40.8 t ADT: 800

WV RT. 43

Fair

Over: Rubles Run

1.7mi s of penn.st. 3002, Monongalia, WV

Built 2011 Load: 40.8 t ADT: 800

WV 07

Fair

Over: DUNKARD CREEK & RAILROAD

0.07 MI WEST CO RT 7/11, Monongalia, WV

Built 1987 Load: 43.5 t ADT: 5,700

MON CO RT 76

Fair

Over: BOOTHS CREEK

0.02 MI NORTH CO RT 76/5, Monongalia, WV

Built 1982 Load: 43.5 t ADT: 50

MON CO RT 43

Fair

Over: BRANCH OF DUNKARD CREEK

0.03 MI SOUTH US RT 19, Monongalia, WV

Built 2004 Load: 46.3 t ADT: 500

INTERSTATE 79 SB

Fair

Over: US 19

3.40 MI NORTH CO RT 19/24, Monongalia, WV

Built 1967 Load: 47.2 t ADT: 13,750

INTERSTATE 79 NB

Fair

Over: US 19

3.40 MI NORTH CO RT 19/24, Monongalia, WV

Built 1967 Load: 47.2 t ADT: 13,750

Mon. Co. Rt 7/9

Fair

Over: THOMAS RUN

0.13 MI SOUTH WV RT 7, Monongalia, WV

Built 1993 Load: 49.9 t ADT: 50

MON CO RT 119/6

Fair

Over: COBUN CREEK

0.22 MI NORTH CO RT 81/2, Monongalia, WV

Built 1988 Load: 50.8 t ADT: 200

WV ROUTE 7

Fair

Over: DUNKARD CREEK

0.04 MI EAST CO RT 25, Monongalia, WV

Built 1993 Load: 51.7 t ADT: 3,100

MON CO RT 11/1

Fair

Over: RT BRANCH OF MIRACLE RUN

0.03 MI WEST MON CO 15, Monongalia, WV

Built 2002 Load: 53.5 t ADT: 50

MON CO RT 119/6

Fair

Over: COBUN CREEK

0.05 MI SOUTH CO RT 81/2, Monongalia, WV

Built 1987 Load: 54.4 t ADT: 300

INTERSTATE 79

Fair

Over: Mon. Co. Rt. 73

0.46 MILES NORTH I-68, Monongalia, WV

Built 1970 Load: 55.3 t ADT: 32,800

MON CO RT 39/1

Fair

Over: HACKELBENDER RUN

0.06 MI EAST CO RT 39/4, Monongalia, WV

Built 1988 Load: 56.2 t ADT: 50

MONONGALIA CR 50

Fair

Over: WADES RUN

0.52 MI NORTH US ROUTE 19, Monongalia, WV

Built 1989 Load: 56.2 t ADT: 750

MONONGALIA CR 77

Fair

Over: OWL CREEK

0.07 MI WEST CO RT 76, Monongalia, WV

Built 1993 Load: 56.2 t ADT: 1,600

MONONGALIA CR 11

Fair

Over: RT BRANCH OF MIRACLE RUN

0.10 MI WEST MON CO RT 15, Monongalia, WV

Built 1992 Load: 57.1 t ADT: 200

MONONGALIA CR 50

Fair

Over: WADES RUN

0.23 MI SOUTH CO RT 54, Monongalia, WV

Built 1987 Load: 57.1 t ADT: 750

MONONGALIA CR 50

Fair

Over: WADES RUN

0.34 MI SOUTH CO RT 54, Monongalia, WV

Built 1989 Load: 59.0 t ADT: 750

WV ROUTE 100

Fair

Over: DENTS RUN

0.05 MI SOUTH CO RT 49, Monongalia, WV

Built 1988 Load: 59.0 t ADT: 2,500

WV ROUTE 218

Fair

Over: DAYS RUN

0.01 MI SOUTH CO RT 18, Monongalia, WV

Built 1983 Load: 59.0 t ADT: 1,300

MONONGALIA CR 37

Fair

Over: DOLLS RUN

0.07 MI SOUTH WV RT 7, Monongalia, WV

Built 1989 Load: 59.9 t ADT: 450

MON CO RT 16/3

Fair

Over: BR OF BENNEFIELD PRONG

0.05 MI WEST CO RT 16, Monongalia, WV

Built 1989 Load: 60.8 t ADT: 50

MONONGALIA CR 20

Fair

Over: JAKES RUN

0.02 MI WEST CO RT 29, Monongalia, WV

Built 1989 Load: 62.6 t ADT: 200

MON CO RT 36

Fair

Over: WHITE DAY CREEK

0.01 MI SOUTH CO RT 36/1, Monongalia, WV

Built 1991 Load: 66.2 t ADT: 450

MON CO RT 50

Fair

Over: WADES RUN

0.04 MI SOUTH CO RT 54, Monongalia, WV

Built 1989 Load: 66.2 t ADT: 800

MON CO RT 119/6

Fair

Over: COBUN CREEK

0.08 MI NORTH CO RT 81/2, Monongalia, WV

Built 1988 Load: 66.2 t ADT: 200

COUNTY ROUTE 14

Good

Over: DUNKARD CREEK

0.01 MI NORTH WV RT 7, Monongalia, WV

Built 2002 Load: 27.2 t ADT: 1,000

US 19

Good

Over: CR 19/25 & Scotts Run

0.03 MI SOUTH CO RT 19/12, Monongalia, WV

Built 2008 Load: 27.2 t ADT: 10,900

WV 7

Good

Over: DOLLS RUN

0.35 mi E of Mon Co Rt 39, Monongalia, WV

Built 2012 Load: 30.8 t ADT: 3,900

INTERSTATE 68

Good

Over: BOOTHS CREEK

0.20 MI EAST I-79, Monongalia, WV

Built 1970 Load: 32.7 t ADT: 39,800

MGL CO RT 857/17

Good

Over: I-68 EB & WB

0.01 MI SOUTH MGL CO 857, Monongalia, WV

Built 1973 Load: 32.7 t ADT: 1,500

MON CO RT 49

Good

Over: DENTS RUN

0.47 MI NORTH US ROUTE 19, Monongalia, WV

Built 1969 Load: 32.7 t ADT: 3,100

WV ROUTE 7

Good

Over: KNOCKING RUN

0.07 MI EAST MGL CO 7/40, Monongalia, WV

Built 2005 Load: 32.7 t ADT: 15,600

MON CO 40/2 (SLS)

Good

Over: FLAGGY MEADOW RUN

0.01 mi N of Mon Co 45/7, Monongalia, WV

Built 2012 Load: 32.7 t ADT: 10

WV ROUTE 7

Good

Over: JAKES RUN

0.10 MI EAST MGL CO RT 31, Monongalia, WV

Built 2008 Load: 33.6 t ADT: 3,100

MON CO RT 76

Good

Over: BOOTHS CREEK

0.26 MI SOUTH CO RT 76/4, Monongalia, WV

Built 1999 Load: 35.4 t ADT: 100

WV Rt. 7

Good

Over: Scotts Run

0.16 mi E of Mgl Co 43, Monongalia, WV

Built 2015 Load: 35.4 t ADT: 3,600

Mon Co 11

Good

Over: WV Fork of Dunkard Creek

0.05 miles E of WV 7 (F), Monongalia, WV

Built 2016 Load: 35.4 t ADT: 200

WV 7

Good

Over: West Virginia Fork

0.07 MI EAST MON CO 7/23, Monongalia, WV

Built 2009 Load: 36.3 t ADT: 2,200

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.