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

SR 0218

Poor

Over: ROBERTS RUN

WAYNE TOWNSHIP, Greene, PA

Built 1932 Load: 23.6 t ADT: 1,458

GAS COMPANY ROAD

Poor

Over: DUNKARD CREEK

SOUTHWEST OF DAVISTOWN, Greene, PA

Built 1961 Load: 23.6 t ADT: 320

SR 0435 TR 435

Poor

Over: LACKA CO RR AUTHORITY

ELMHURST TWP .3M N SR2010, Lackawanna, PA

Built 1948 Load: 23.6 t ADT: 5,627

COVERT RD

Poor

Over: SR 0376 EB WB

COVERT RD. OVER 376, Lawrence, PA

Built 1972 Load: 23.6 t ADT: 2,411

SR 1005

Poor

Over: OVER PLUNKETTS CREEK

1 MILE SOUTH OF PROCTOR, Lycoming, PA

Built 1938 Load: 23.6 t ADT: 331

SR 2015 (LR 45084)

Poor

Over: SAMBO CREEK

KING ST @ BROOKSIDE AVE., Monroe, PA

Built 1953 Load: 23.6 t ADT: 1,553

MARKLEY/ELM STREET

Poor

Over: STONY CREEK

0.4 Mi W US-202 N 3367-E1, Montgomery, PA

Built 1878 Load: 23.6 t ADT: 24,993

Pine hill rd. 3021

Poor

Over: SHERMANS CREEK

1 MI NORTH OF LEBO, Perry, PA

Built 1910 Load: 23.6 t ADT: 107

TR 447 PANTHER RD

Poor

Over: WALLENPAUPACK CREEK

GREENE TWP WYNE CTY LINE, Pike, PA

Built 1957 Load: 23.6 t ADT: 1,539

ON TSR 405

Poor

Over: ALLEGHENY RIVER

ROULETTE, Potter, PA

Built 1983 Load: 23.6 t ADT: 1,010

SR 3002

Poor

Over: UPPER LITTLE SWATARA CR

1 M. E. OF PINE GROVE, Schuylkill, PA

Built 1940 Load: 23.6 t ADT: 1,122

BEAR CREEK ROAD

Poor

Over: BEAR CREEK

BEAR CREEK ROAD AUBURN, Schuylkill, PA

Built 1961 Load: 23.6 t ADT: 200

RAILROAD ST

Poor

Over: MILL CREEK

ST. CLAIR ON RAILROAD ST., Schuylkill, PA

Built 1965 Load: 23.6 t ADT: 1,000

CHURCH ST (T-308)

Poor

Over: W. BR. MAHANTANGO

BOROUGH OF RICHFIELD, Snyder, PA

Built 1948 Load: 23.6 t ADT: 75

SR 3007

Poor

Over: SMITH RUN

1.5 MI.E.OF HUMBERT, Somerset, PA

Built 1938 Load: 23.6 t ADT: 268

SR 2009

Poor

Over: TRIB HORTON CREEK

LATHROP TWP .6M N SR 3023, Susquehanna, PA

Built 1947 Load: 23.6 t ADT: 221

T-855 Rockwell Rd

Poor

Over: STARRUCCA CREEK

0.5 MI W OF BRANDT, Susquehanna, PA

Built 1945 Load: 23.6 t ADT: 75

T-300 HENDERSON ST

Poor

Over: OVER SOUTH SANDY CREEK

MINERAL TOWNSHIP, Venango, PA

Built 1930 Load: 23.6 t ADT: 50

SR 0018

Poor

Over: CHARTIERS CREEK

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1934 Load: 23.6 t ADT: 6,244

PARK ROAD REA BRID

Poor

Over: CROSS CREEK TRIB

100 SOUTH OF SR 50, Washington, PA

Built 1934 Load: 23.6 t ADT: 200

SR 0247 TR 247

Poor

Over: KINNEYVILLE CREEK

PRESTON TWP .1M S SR 4033, Wayne, PA

Built 1961 Load: 23.6 t ADT: 730

SR 0381

Poor

Over: CAMP RUN

DONEGAL TOWNSHIP, Westmoreland, PA

Built 1934 Load: 23.6 t ADT: 343

SR 4035

Poor

Over: LYONS RUN

Penn Twp./Murrysville, Westmoreland, PA

Built 1952 Load: 23.6 t ADT: 8,397

T653 Pittsburgh St

Poor

Over: MCGEE RUN

BTW SR 0982 & SR 0217, Westmoreland, PA

Built 1980 Load: 23.6 t ADT: 555

Glenn Fox Road

Poor

Over: Trib of Sewickley Creek

200 E of SR 3075, Westmoreland, PA

Built 1926 Load: 23.6 t ADT: 330

PA 216 BLOOMING GR

Poor

Over: LAKE MARBURG

LAKE MARBURG, York, PA

Built 1967 Load: 23.6 t ADT: 7,779

CITY LINE AVENUE

Poor

Over: SEPTA(BALA STATION)

.5MI.S.BELMONT AVE3479D10, Philadelphia, PA

Built 1910 Load: 23.6 t ADT: 36,433

CURRY RD T-688

Poor

Over: Coal Lick Run

Franklin TWP, Greene, PA

Built 1930 Load: 23.6 t ADT: 99

SIXTH ST

Poor

Over: CHESTER CREEK

W OF SPROUL ST 3807-B5, Delaware, PA

Built 1963 Load: 23.6 t ADT: 1,000

T-300 WEST KANE RD

Poor

Over: EAST BR TIONESTA CREEK

2.9 MI W OF PA 66, McKean, PA

Built 1960 Load: 23.6 t ADT: 50

PARKWAY EAST

Poor

Over: OLD WM PENN HWY LEAK RUN

I376 O/OLD WM.PENN HWY., Allegheny, PA

Built 1962 Load: 24.5 t ADT: 52,457

SR2008

Poor

Over: MILL RUN

MCNEES, Armstrong, PA

Built 1941 Load: 24.5 t ADT: 173

WEST MADISON ST

Poor

Over: LR 77(TR 18)

Rochester-Bridgewater Bri, Beaver, PA

Built 1957 Load: 24.5 t ADT: 3,165

POPLAR NECK ROAD

Poor

Over: SCHUYLKILL RIVER

NW OF PA 724/I-176 INTER., Berks, PA

Built 1917 Load: 24.5 t ADT: 1,086

BIG SPRING ROAD

Poor

Over: FURNACE CREEK

EAST OF ROBESONIA, Berks, PA

Built 1981 Load: 24.5 t ADT: 400

CR-101 Bedford St

Poor

Over: SOUTH POPLAR RUN

CLAYSBURG, Blair, PA

Built 1913 Load: 24.5 t ADT: 3,392

SOUTH MAIN STREET

Poor

Over: PLEASANT SPRING CREEK

PERKASIE BORO 20H02, Bucks, PA

Built 1958 Load: 24.5 t ADT: 250

SCHWENK MILL ROAD

Poor

Over: MORRIS RUN

HILLTOWN TOWNSHIP2809-B10, Bucks, PA

Built 1911 Load: 24.5 t ADT: 100

CLAY RIDGE ROAD

Poor

Over: RAPP CREEK

TINICUM TOWNSHIP 2698-G3, Bucks, PA

Built 1917 Load: 24.5 t ADT: 200

RANDALL AVENUE

Poor

Over: AMTRAK

.2 Mi SE US-13 3263-G10, Bucks, PA

Built 1919 Load: 24.5 t ADT: 400

WEISS ROAD

Poor

Over: LICKING CREEK

3700 FT N. PA 663 2694-D9, Bucks, PA

Built 1970 Load: 24.5 t ADT: 500

SR2004

Poor

Over: BONNIE BROOK

EAST BUTLER BORO, Butler, PA

Built 1951 Load: 24.5 t ADT: 1,607

PA 160

Poor

Over: N BR LITTLE CONEMAUGH R

0.2 MILE NORTH OF PA 53, Cambria, PA

Built 1952 Load: 24.5 t ADT: 1,960

LIMESTONE ROAD

Poor

Over: US-1 BY-PASS

NORTH OF OXFORD 43H11, Chester, PA

Built 1968 Load: 24.5 t ADT: 8,978

WATERLOO ROAD

Poor

Over: DARBY CREEK

SOUTH OF DEVON 24H12, Chester, PA

Built 1908 Load: 24.5 t ADT: 4,900

ST MALACHI ROAD

Poor

Over: DOE RUN

LONDONDERRY HIGH 3689-D6, Chester, PA

Built 1914 Load: 24.5 t ADT: 103

SHEEDER MILL ROAD

Poor

Over: FRENCH CREEK

3250-K6 ADC Map, Chester, PA

Built 1887 Load: 24.5 t ADT: 187

ELLIS WOODS ROAD

Poor

Over: PIGEON CREEK

2.4 Mi N PA-23 3139-A8, Chester, PA

Built 1950 Load: 24.5 t ADT: 910

BRYSON ROAD

Poor

Over: KNIGHTS RUN

NORTH HOMEVILLE 3687-C10, Chester, PA

Built 1900 Load: 24.5 t ADT: 250

DAVIS ROAD

Poor

Over: CRUM CREEK

1.8MI SW OF SR252 3475-D8, Chester, PA

Built 1956 Load: 24.5 t ADT: 224

Showing 21,601-21,650 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.