State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

CONCORD ROAD

Good

Over: SEPTA(NOT ACTIVE BURIED)

1/4 MI. N. US-322 3806J05, Delaware, PA

Built 2015 Load: 46.0 t ADT: 2,133

SR 0239 TR 239

Good

Over: SHICKSHINNY CREEK

UNION TWP 50 S SR 4010, Luzerne, PA

Built 2016 Load: 46.0 t ADT: 4,619

PA 737 (LR06134)

Good

Over: I-78 (LR285SP)

KRUMSVILLE INTERCHANGE, Berks, PA

Built 2016 Load: 46.0 t ADT: 5,245

Main Street

Good

Over: Fishing Creek

ROULETTE, Potter, PA

Built 2017 Load: 46.0 t ADT: 448

PA 187

Good

Over: TRIB WAPPASENING CREEK

2.5 MI.NORTH OF WINDHAM C, Bradford, PA

Built 2021 Load: 46.0 t ADT: 1,635

SR 3020

Good

Over: PA TPK (I-76)

WEST OF PERRY HGW INTG, Butler, PA

Built 2020 Load: 46.0 t ADT: 20,552

SR 2055

Good

Over: Pa Turnpike I-76

NEAR BOYCE PARK, Allegheny, PA

Built 2022 Load: 46.0 t ADT: 4,040

SR 90 EB

Good

Over: OVER T-475 NEIGER ROAD

GIRARD TOWNSHIP, Erie, PA

Built 2022 Load: 46.0 t ADT: 13,613

PA TPK (I-476)

Good

Over: T-599 Huckleberry Rd

2MI N OF L V INTERCHANGE, Lehigh, PA

Built 2022 Load: 46.0 t ADT: 30,563

T-397

Good

Over: Shafer Run

1 Mi North of Bakersville, Somerset, PA

Built 2022 Load: 46.0 t ADT: 50

T-417; SACHS RD

Good

Over: US 15 NB; SR 0015

SOUTH OF GETTYSBURG, Adams, PA

Built 1990 Load: 46.3 t ADT: 138

PA 234; SR 0234

Good

Over: CONEWAGO CREEK

EAST BERLIN BORO, Adams, PA

Built 1993 Load: 46.3 t ADT: 8,022

SR 2006

Good

Over: INDIAN RUN

3/4 MI.S. OF MT.PLEASANT, Adams, PA

Built 1983 Load: 46.3 t ADT: 4,688

SR 0019 NB

Good

Over: SR 0376 EB-WB

350S.W.OF FT.PITT TUNNEL, Allegheny, PA

Built 1953 Load: 46.3 t ADT: 13,157

STUBENVILLE PIKE

Good

Over: RT 22

STUEBENVILLE PIKE O/TR 22, Allegheny, PA

Built 1964 Load: 46.3 t ADT: 5,605

BECKS RUN RD

Good

Over: BECKS RUN

BC06 BECKS RUN NO.6, Allegheny, PA

Built 1990 Load: 46.3 t ADT: 12,757

13TH STREET

Good

Over: BLOCKHOUSE RUN

13TH ST.-NEW BRIGHTON, Beaver, PA

Built 2002 Load: 46.3 t ADT: 4,287

SCHOOL RD

Good

Over: RACCOON CREEK

004037 1 MI S OF RT 151, Beaver, PA

Built 1982 Load: 46.3 t ADT: 150

PA 26

Good

Over: WEIMER RUN

1.1 MILE SOUTH OF SR 2010, Bedford, PA

Built 1999 Load: 46.3 t ADT: 344

PA 96

Good

Over: SHAWNEE CREEK & LAKE

0.8 MILE SOUTH OF US 30, Bedford, PA

Built 1951 Load: 46.3 t ADT: 705

SR 2002

Good

Over: BUSHY FORK CREEK

2 MI.E.OF CHANNEYSVILLE, Bedford, PA

Built 1997 Load: 46.3 t ADT: 15

T378 Madley Church

Good

Over: WOLF CAMP RUN

MADLEY, Bedford, PA

Built 1999 Load: 46.3 t ADT: 11

SR 706

Good

Over: STAFFORD CREEK

1 MI.N.OF WYALUSING BORO, Bradford, PA

Built 1989 Load: 46.3 t ADT: 2,891

US 219 NBL

Good

Over: SR 4005

0.9 MILE NORTH OF TR 422, Cambria, PA

Built 1990 Load: 46.3 t ADT: 2,382

US 219 SBL

Good

Over: SR 4005

0.9 MILE NORTH OF TR 422, Cambria, PA

Built 1990 Load: 46.3 t ADT: 2,187

SR 2013

Good

Over: HOWELLS RUN

2.5 MI.S.OF EBENSBURG, Cambria, PA

Built 1992 Load: 46.3 t ADT: 374

SR 4001

Good

Over: DUTCH RUN

4 MI.N.OF BELSANO, Cambria, PA

Built 1990 Load: 46.3 t ADT: 102

ON TSR 966

Good

Over: HALF MOON CREEK

CENTENNIAL, Centre, PA

Built 1989 Load: 46.3 t ADT: 591

POE PADDY DRIVE

Good

Over: BIG POE CREEK

400 FT N OF POE VALLEY RD, Centre, PA

Built 1935 Load: 46.3 t ADT: 50

SIGLER.MILLHEIM PK

Good

Over: BIG POE CREEK

2.5 MI SW OF POE VLY SP, Centre, PA

Built 1998 Load: 46.3 t ADT: 20

EXTON BYPASS(EB)

Good

Over: SHIP ROAD

1.25MI.E.RT 100 22A12, Chester, PA

Built 1994 Load: 46.3 t ADT: 22,730

LEWISVILLE ROAD

Good

Over: HODGSON RUN

2.0 MI. PEACEDALE 53B8, Chester, PA

Built 1998 Load: 46.3 t ADT: 1,306

MAIN STREET

Good

Over: FRENCH CREEK

PHOENIXVILLE BORO 15E05, Chester, PA

Built 1847 Load: 46.3 t ADT: 6,616

T-507 WAS T-800

Good

Over: JAKE RUN

420 S OF SR 970 INTERSEC, Clearfield, PA

Built 1991 Load: 46.3 t ADT: 60

JACK DENT RD

Good

Over: JACK DENT BRANCH

1 MILE NE MEDIX GRADE RD, Clearfield, PA

Built 2001 Load: 46.3 t ADT: 25

MERRILL RD

Good

Over: GIFFORD RUN

1 MILE N OF CALEDONIA PK, Clearfield, PA

Built 1999 Load: 46.3 t ADT: 25

COOKS RUN ROAD

Good

Over: COOKS RUN

1.4 MI NW OF SR 120, Clinton, PA

Built 2001 Load: 46.3 t ADT: 25

I-81 SB; SR 0081

Good

Over: TWP RD; OLD SR 1005

0.6 MI.S. OF US 11, Cumberland, PA

Built 1963 Load: 46.3 t ADT: 26,923

I-81 NB; SR 0081

Good

Over: SEARS RUN

0.8 MI.W. OF LR 569, Cumberland, PA

Built 1973 Load: 46.3 t ADT: 32,160

RADNOR CHESTER RD.

Good

Over: ITHAN CREEK

.7MI.S.DIST.OFFICE 14F11, Delaware, PA

Built 1992 Load: 46.3 t ADT: 4,492

SR 3013 ALBION RD.

Good

Over: OVER CONNEAUT CREEK BR

CONNEAUT TOWNSHIP, Erie, PA

Built 1953 Load: 46.3 t ADT: 1,144

SR 8170 M RICCI WB

Good

Over: OVER SR 90 EB/WB

GREENFIELD TOWNSHIP, Erie, PA

Built 1986 Load: 46.3 t ADT: 4,041

SR 8170 M RICCI EB

Good

Over: OVER SR 90 EB/WB

GREENFIELD TOWNSHIP, Erie, PA

Built 1986 Load: 46.3 t ADT: 31

SR 0051

Good

Over: BOLDEN RUN

WALTERSBURG, Fayette, PA

Built 1957 Load: 46.3 t ADT: 16,349

SR 0051

Good

Over: BRANCH OF WASHINGTON RUN

PERRYOPOLIS BOROUGH, Fayette, PA

Built 1996 Load: 46.3 t ADT: 12,967

SR 0857

Good

Over: BRANCH OF MOUNTAIN CREEK

GEORGES TOWNSHIP, Fayette, PA

Built 1967 Load: 46.3 t ADT: 4,937

SR 1059

Good

Over: JACOBS CREEK

U. TYRONE & E. HUNTINGDON, Fayette, PA

Built 1984 Load: 46.3 t ADT: 861

SR 2021

Good

Over: SHUTES RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1994 Load: 46.3 t ADT: 3,064

SR 3014

Good

Over: PA TPK (TOLL 43)

FAIRCHANCE INTERCHANGE, Fayette, PA

Built 1995 Load: 46.3 t ADT: 6,776

SR 1004

Good

Over: NORFOLK SOUTHERN RAIL

1MI W OF SCOTLAND, Franklin, PA

Built 1986 Load: 46.3 t ADT: 2,684

Showing 18,101-18,150 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.