County profile · official public datasets

Washington County, PA

655 public highway bridges tracked in the FHWA National Bridge Inventory: 38.3% rated Good, 49.6% Fair, 12.1% Poor.

655
Public bridges
38.3%
Good condition
12.1%
Poor condition

The verdict

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

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

36th
of 67 on Poor share
12.1%
Poor-condition share
655
public highway bridges
1971
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.

Washington County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Washington County ranks #36 of 67 Pennsylvania counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 12.1%). Washington County, Pennsylvania contains 655 public highway bridges. Roughly 38.3% are rated “Good,” 49.6% “Fair,” and 12.1% “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

655

Public highway bridges in Washington County

Good condition

38.3%

251 of 655 rated 7-9

Fair condition

49.6%

325 of 655 rated 5-6

Poor condition

12.1%

79 of 655 rated 4 or below

In-state Poor-share rank

#36 of 67

Among Pennsylvania counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 655 NBI-tracked bridges by lowest applicable component rating.

Good
38.3% (251)
Fair
49.6% (325)
Poor
12.1% (79)

Washington County's Poor-condition bridges carry 98,832 vehicle crossings a day

That is 2.7% of the county's reported daily bridge traffic on 12.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,251 crossings a day against 5,496 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 655 of 655 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

54.4% of Washington County's bridges have passed the 50-year mark

356 of the 655 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 38.3% 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 20.2% of the county's Poor-condition bridge traffic

SR 0022 over RACCOON CREEK, built 1970, carries 19,995 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 79-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 98,832 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Washington County's bridges were built

655 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 119 of the county's bridges still in the inventory were built, which is 18.2% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1971) matches the Pennsylvania average (1970).

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

How Washington County compares with Pennsylvania's closest counties by inventory size

The 5 Pennsylvania counties nearest Washington County in number of bridges, with their condition splits. Its 12.1% Poor share is the 1st-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1963 is 8 years newer.

Showing the 5 closest of 66 Pennsylvania counties eligible for comparison.

Bridge inventory size and condition shares for Washington County and the 5 Pennsylvania counties closest to it in inventory size
County Bridges Poor
Bucks County 699 15.5%
Chester County 680 13.7%
Berks County 667 15%
Washington County (this page) 655 12.1%
Westmoreland County 620 15.8%
Philadelphia County 585 13.2%

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 Washington 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 Washington County, both outside Pennsylvania so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside PA (655 bridges here).

Similar average build year

Nearest mean year-built outside PA (1971 here).

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

All 655 Good 251 Fair 325 Poor 79

Good-condition bridges (251)

Pike Run Dr

Good

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 2017 Load: 48.0 t ADT: 198

SR 1009

Good

Over: Chartiers Run

HOUSTON BOROUGH, Washington, PA

Built 2021 Load: 48.0 t ADT: 8,321

DUNBAR BRIDGE T320

Good

Over: RACCOON CREEK

@ T843/T700 INTERSECTION, Washington, PA

Built 1889 Load: 48.1 t ADT: 15

PA TPK (TOLL 43)

Good

Over: SR 1065

2MI. NORTH OF RT136 INT., Washington, PA

Built 2001 Load: 48.1 t ADT: 5,633

SR 0980

Good

Over: Chartiers Creek

1.2 mi N from SR 0519, Washington, PA

Built 2016 Load: 48.3 t ADT: 3,813

Chapel Hill Road

Good

Over: MINGO CREEK

Mingo Creek County Park, Washington, PA

Built 2015 Load: 48.6 t ADT: 100

SR 0519

Good

Over: LITTLE CHARTIERS CREEK

NORTH STRABANE TWP., Washington, PA

Built 2000 Load: 49.0 t ADT: 9,812

SR 0079

Good

Over: SR 0019

AMWELL TWP, Washington, PA

Built 2000 Load: 49.0 t ADT: 12,106

SR 0519

Good

Over: Plum Run

0.6 mi N of SR 0079, Washington, PA

Built 2010 Load: 49.0 t ADT: 2,840

SR 0070

Good

Over: SR 0019

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 49.2 t ADT: 25,488

SR 0079 SB

Good

Over: SR 1047 (Manifold Road)

2.4 mi N of 79N/70W, Washington, PA

Built 2014 Load: 49.2 t ADT: 24,317

SR 8016

Good

Over: SR 0070 & SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1996 Load: 49.9 t ADT: 10,848

SR 1009

Good

Over: McPherson Creek

3.5 mi N of SR 0980, Washington, PA

Built 2010 Load: 49.9 t ADT: 9,850

SR 0070

Good

Over: SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 50.8 t ADT: 26,523

SR 0917

Good

Over: Unnamed Trib Sawmill Cr.

1.2 MI SOUTH OF SR 1067, Washington, PA

Built 2006 Load: 50.8 t ADT: 1,530

OAK RIDGE RD

Good

Over: BRUSH RUN

HOPEWELL AND BLAINE TWP., Washington, PA

Built 2017 Load: 50.9 t ADT: 54

WEST FINLEY RD

Good

Over: ROBINSON FORK

WEST FINLEY TOWNSHIP, Washington, PA

Built 2017 Load: 51.5 t ADT: 654

SR 0917

Good

Over: N. BR. OF PIGEON CREEK

BENTLEYVILLE BOROUGH, Washington, PA

Built 1985 Load: 51.7 t ADT: 6,250

SR 2020

Good

Over: LITTLE TENMILE CREEK

W. BETHLEHEM & MARIANNA B, Washington, PA

Built 1942 Load: 51.7 t ADT: 1,168

PA TPK (TOLL 43)

Good

Over: SR2048 Old National Pike

S of Exit 30, Washington, PA

Built 2011 Load: 51.7 t ADT: 2,000

PA TPK (TOLL 43)

Good

Over: Two Mile Run

Exit 28, Washington, PA

Built 2011 Load: 51.8 t ADT: 200

SR 1037

Good

Over: CHARTIERS CREEK

CANONSBURG BOROUGH, Washington, PA

Built 1986 Load: 52.6 t ADT: 2,292

SR 2049

Good

Over: BARRS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1943 Load: 52.6 t ADT: 1,466

T388 / T432

Good

Over: Cross Creek

200 South of SR 50, Washington, PA

Built 2009 Load: 52.6 t ADT: 615

PA TPK (Toll 43)

Good

Over: S.R. 2048

West of West Brownsville, Washington, PA

Built 2009 Load: 52.6 t ADT: 1,376

BISHOP HICKORY RD

Good

Over: MILLER RUN

CECIL TOWNSHIP, Washington, PA

Built 2018 Load: 53.8 t ADT: 4,746

BENTLYVILLE RD

Good

Over: PIGEON CREEK

FALLOWFIELD TOWNSHIP, Washington, PA

Built 2018 Load: 54.1 t ADT: 651

SR 1010

Good

Over: Brush Run Tributary

0.2 mi S from SR 0019, Washington, PA

Built 2014 Load: 55.1 t ADT: 11,967

PA TPK (I-576)

Good

Over: RAMP RE OVER SR 22

ROBINSON TWP, Washington, PA

Built 2006 Load: 55.3 t ADT: 2,025

PA TPK (I-576)

Good

Over: RAMP S OVER SR 22

ROBINSON TWP, Washington, PA

Built 2004 Load: 55.3 t ADT: 2,025

SR 0040

Good

Over: Branch of Buffalo Creek

0.05 mi W of SR 0221, Washington, PA

Built 2010 Load: 55.3 t ADT: 5,086

Pike Run Dr

Good

Over: Pike Run

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 2017 Load: 56.1 t ADT: 198

PA TPK (TOLL 43)

Good

Over: SR 0136 MF-309

MONONGAHELA ROUTE 136 INT, Washington, PA

Built 2001 Load: 56.2 t ADT: 5,533

PA TPK TOLL 43

Good

Over: SR 0136

MONONGAHELA ROUTE 136 INT, Washington, PA

Built 2001 Load: 56.2 t ADT: 5,633

SR 0050

Good

Over: REISSING RUN

CECIL TOWNSHIP, Washington, PA

Built 1975 Load: 57.2 t ADT: 9,414

PA TPK (Toll 43)

Good

Over: S.R. 2048

West of West Brownsville, Washington, PA

Built 2009 Load: 58.1 t ADT: 1,376

SR 2012 WALNT RDG

Good

Over: TURNPIKE 43; MP M038.52

FALLOWFIELD TWP, Washington, PA

Built 1998 Load: 59.9 t ADT: 1,283

RIDGEWOOD DRIVE

Good

Over: MILLERS RUN

SOUTH OF PA50 NEAR BISHOP, Washington, PA

Built 1993 Load: 62.6 t ADT: 200

PA TPK (TOLL 43)

Good

Over: SR 1065

2MI. NORTH OF RT136 INT., Washington, PA

Built 2001 Load: 64.4 t ADT: 5,533

SR2030

Good

Over: GORBY RUN

CALIFORNIA BOROUGH, Washington, PA

Built 2003 Load: 64.4 t ADT: 1,013

SR 0070 Eastbound

Good

Over: Zediker St Rd (T-638)

1.3 mi E of SR 0079, Washington, PA

Built 2010 Load: 65.3 t ADT: 13,254

SR 0070 Westbound

Good

Over: Zediker St Rd (T-638)

1.3 mi E of SR 0079, Washington, PA

Built 2010 Load: 65.3 t ADT: 12,438

SR 1002

Good

Over: BRUSH RUN

PETERS TOWNSHIP, Washington, PA

Built 1938 Load: 66.2 t ADT: 11,052

SR 1010

Good

Over: BRUSH RUN

PETERS TOWNSHIP, Washington, PA

Built 1998 Load: 66.2 t ADT: 11,967

SR 2008

Good

Over: Daniels Run

S of Glyde and 40, Washington, PA

Built 2008 Load: 66.2 t ADT: 94

SR 0070

Good

Over: SR 0019

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 67.1 t ADT: 24,022

SR 1006

Good

Over: PETERS CREEK

UNION TOWNSHIP, Washington, PA

Built 2001 Load: 67.1 t ADT: 6,888

SR 0070

Good

Over: CHARTIERS CREEK

FRANKLIN TOWNSHIP, Washington, PA

Built 1957 Load: 89.7 t ADT: 29,209

SR 2011

Good

Over: DANIELS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1986 Load: 93.4 t ADT: 1,220

SR 0088

Good

Over: PIKE RUN

CALIFORNIA BOROUGH, Washington, PA

Built 1990 Load: 99.8 t ADT: 3,813

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.