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

ALLEGHENY VAL EXPY

Fair

Over: RAVINE ST

1.0 MI W OF HIGHLAND PK, Allegheny, PA

Built 1963 Load: 62.6 t ADT: 37,663

GIBSONIA RD

Fair

Over: CEDAR RUN

150N.W.CEDAR RUN RD., Allegheny, PA

Built 1955 Load: 62.6 t ADT: 5,608

RIDGE ROAD

Fair

Over: CLAIRTON BLVD

1 MI N OF ELIZABETH BR., Allegheny, PA

Built 1987 Load: 62.6 t ADT: 1,754

GREENTREE ROAD

Fair

Over: GEORGES RUN

0.3 MI W OF SR 121, Allegheny, PA

Built 1950 Load: 62.6 t ADT: 12,148

PERRYSVILLE AVE RP

Fair

Over: LR 1021-4 NB SB HOV I279

LR 246 SPUR C1 OVER 1021, Allegheny, PA

Built 1986 Load: 62.6 t ADT: 17,671

RAMP F

Fair

Over: SR 0837

RAMP F OVER TR 837, Allegheny, PA

Built 1951 Load: 62.6 t ADT: 2,324

US 222 (LR 06150)

Fair

Over: SR 3023(STATE HILL RD.)

OVER STATE HILL ROAD, Berks, PA

Built 1977 Load: 62.6 t ADT: 94,261

SR0228

Fair

Over: B&LE RR

EAST OF GLADE MILLS, Butler, PA

Built 1961 Load: 62.6 t ADT: 6,890

US 219

Fair

Over: LITTLE CONEMAUGH RIVER

0.4 MILE NORTH OF TR 53, Cambria, PA

Built 1968 Load: 62.6 t ADT: 12,978

US 219

Fair

Over: WALNUT RUN

1.2 MILE NORTH OF TR 271, Cambria, PA

Built 1900 Load: 62.6 t ADT: 6,561

SR 3016 BEDFORD ST

Fair

Over: SOLOMON RUN

DALE BORO., Cambria, PA

Built 1988 Load: 62.6 t ADT: 7,599

PA 248 (LR 163)

Fair

Over: NORFOLK SOUTHERN

0.5 MI.S.OF PALMERTON, Carbon, PA

Built 1962 Load: 62.6 t ADT: 23,671

PENNSYLVANIA AVE

Fair

Over: BRANDYWINE CREEK

500 N US-322 3471-G9, Chester, PA

Built 1986 Load: 62.6 t ADT: 10,500

SR 3004

Fair

Over: W BR SUSQUEHANNA RIVER

STIFFLERTOWN, Clearfield, PA

Built 1936 Load: 62.6 t ADT: 220

WILDWOOD PARK DR

Fair

Over: PAXTON CREEK

HACC ENTRANCE, Dauphin, PA

Built 1987 Load: 62.6 t ADT: 2,500

SR 2004

Fair

Over: BENNETT BRANCH SINNEM CR

MEDIX RUN, Elk, PA

Built 1962 Load: 62.6 t ADT: 179

US 11; Molly Pitch

Fair

Over: I-81; SR 0081

1.5 MI.S. OF GREENCASTLE, Franklin, PA

Built 1960 Load: 62.6 t ADT: 12,750

SR 2024;BunkerHill

Fair

Over: Trib Little Beaver Creek

1 mi E. of Martinsville, Lancaster, PA

Built 1938 Load: 62.6 t ADT: 1,247

SR 4013

Fair

Over: BRANCH KITCHEN CREEK

FAIRMOUNT T 2.5M N SR4015, Luzerne, PA

Built 1985 Load: 62.6 t ADT: 189

BRIDGE 712 T-320

Fair

Over: OVER BOOTH RUN

S.BARRY RD W. SALEM TWP., Mercer, PA

Built 1964 Load: 62.6 t ADT: 44

SR 322-US 322

Fair

Over: KISHACOQUILLAS C/ABND RR

REEDSVILLE, Mifflin, PA

Built 1964 Load: 62.6 t ADT: 11,457

SR 522-US 522

Fair

Over: MEADOW CREEK

ALFARATA, Mifflin, PA

Built 1974 Load: 62.6 t ADT: 3,792

RAMP B (NB)

Fair

Over: RAMP C (WB) ON RMP

CITY LINE INTERCH 3479-G9, Montgomery, PA

Built 1953 Load: 62.6 t ADT: 6,271

GREENWOOD RD T-416

Fair

Over: WICONISCO CREEK

0.1 MI. S. OF TOWER CITY, Schuylkill, PA

Built 1987 Load: 62.6 t ADT: 450

S.R. 220

Fair

Over: OVER LOYALSOCK CREEK

3 MI N OF LAPORTE, Sullivan, PA

Built 1984 Load: 62.6 t ADT: 2,466

SR4021 Tan Hill Rd

Fair

Over: OVER THORNBOTTOM CREEK

3 MI SOUTH OF ELKLAND, Tioga, PA

Built 1955 Load: 62.6 t ADT: 312

SR 3007

Fair

Over: NORTH BRANCH BUFFALO CR

1 MI N OF MIFFLINBURG, Union, PA

Built 1972 Load: 62.6 t ADT: 2,864

SR 0088

Fair

Over: FROMAN RUN

UNION TOWNSHIP, Washington, PA

Built 1915 Load: 62.6 t ADT: 6,347

SR 0030

Fair

Over: TINKERS RN CO RD ABND RR

IRWIN VIADUCT, Westmoreland, PA

Built 1939 Load: 62.6 t ADT: 25,296

SR 0031

Fair

Over: SR 0119

EAST HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1963 Load: 62.6 t ADT: 9,514

SR 4040

Fair

Over: BRANCH OF CHARTIERS CK.

CITY OF LOWER BURRELL, Westmoreland, PA

Built 1984 Load: 62.6 t ADT: 740

T-647 IDLEWILD RD

Fair

Over: LOYALHANNA CREEK

1500 S OF SR 30 AT 2043, Westmoreland, PA

Built 1954 Load: 62.6 t ADT: 2,200

SR 0087 TR 87

Fair

Over: LITTLE MEHOOPANY CREEK

MEHOOPANY TP .1M S SR4002, Wyoming, PA

Built 1969 Load: 62.6 t ADT: 2,117

SR 1001 poplar ave

Fair

Over: YELLOW BREECHES CREEK

.4 MI N OF PA TPK, York, PA

Built 1987 Load: 62.6 t ADT: 2,326

RIDGE AVENUE

Fair

Over: HUNTING PARK AVE

NR.MT.VERNON CEM. 3589K01, Philadelphia, PA

Built 1948 Load: 62.6 t ADT: 8,892

RAMP L

Fair

Over: ABRAMS RUN

.7MI. 422/202 34C1/3366H8, Montgomery, PA

Built 2003 Load: 62.6 t ADT: 56,109

Blazier Drive #2

Fair

Over: Pine Creek

BLAZIER 2 OVER PINE CREEK, Allegheny, PA

Built 2012 Load: 62.6 t ADT: 500

SR 2012

Fair

Over: TRIB S BR TUNKHANNOCK CK

CLINTON TWP .2M W SR 2014, Wyoming, PA

Built 1930 Load: 63.2 t ADT: 282

RAMP E

Fair

Over: SR 0837

Elizabeth Bridge, Allegheny, PA

Built 1947 Load: 63.5 t ADT: 783

SR 1014

Fair

Over: TRIB DUNNING CREEK

.1 MI.E.OF BELDEN, Bedford, PA

Built 1929 Load: 63.5 t ADT: 656

SR 2013

Fair

Over: CLOVER CREEK

1.5 MI.E.OF WILLIAMSBURG, Blair, PA

Built 1956 Load: 63.5 t ADT: 861

T-414 Maple Hollow

Fair

Over: GILLANS RUN

MAPLE HOLLOW, Blair, PA

Built 1965 Load: 63.5 t ADT: 1,879

SR 3010

Fair

Over: TOWANDA CREEK

.25 MI.N.OF LEROY, Bradford, PA

Built 1962 Load: 63.5 t ADT: 944

EASTON ROAD

Fair

Over: DEEP RUN

1.MI.N.PIPERSVILLE 16K02, Bucks, PA

Built 1950 Load: 63.5 t ADT: 13,826

SILVER LAKE ROAD

Fair

Over: CORE CREEK

0.7 MI SE OF SR 332, Bucks, PA

Built 1995 Load: 63.5 t ADT: 500

SR 4010(APPL 1012)

Fair

Over: LESLIE RUN

LUZERNE CO.LINE, Carbon, PA

Built 1950 Load: 63.5 t ADT: 1,810

UPPER VALLEY ROAD

Fair

Over: OFFICERS RUN

ATGLEN 26H10, Chester, PA

Built 1937 Load: 63.5 t ADT: 538

SCHOOL ROAD

Fair

Over: WHITE CLAY CREEK

1.1 MI N SR896 ADC3909-C5, Chester, PA

Built 1940 Load: 63.5 t ADT: 200

SR 1011

Fair

Over: MOSQUITO CREEK

2 MI NW KARTHAUS, Clearfield, PA

Built 1956 Load: 63.5 t ADT: 1,528

SR 80-I 80

Fair

Over: SR-PA 880 CARROLL RUN

1 MILE WEST EXIT 192, Clinton, PA

Built 1968 Load: 63.5 t ADT: 7,976

Showing 11,701-11,750 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.