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

LIMBAUGH ROAD

Good

Over: ENGLISH RUN

LITTLE PINE STATE PARK, Lycoming, PA

Built 2013 Load: 37.3 t ADT: 10

US 322; SR 0322

Good

Over: SPRING CREEK

1 MI. S.E. HERSHEY, Dauphin, PA

Built 2014 Load: 37.3 t ADT: 13,698

SR 0018

Good

Over: Fish Creek

12.3 mi S from SR 0021, Greene, PA

Built 2014 Load: 37.3 t ADT: 872

SR 3008

Good

Over: MARSH CREEK

0.5 MI N OF GREENMOUNT, Adams, PA

Built 2013 Load: 37.3 t ADT: 200

US 220

Good

Over: LITTLE LOYALSOCK CREEK

DUSHORE BORO, Sullivan, PA

Built 2014 Load: 37.3 t ADT: 3,218

PA TPK (I-476)

Good

Over: T-369 Wentz Rd

Near Jolly Rd, Montgomery, PA

Built 2014 Load: 37.3 t ADT: 65,329

SR 3005

Good

Over: TRIBUTARY BUFFALO CREEK

3 MI NE HARTLETON BORO, Union, PA

Built 2014 Load: 37.3 t ADT: 338

SR 1001/BUS US 220

Good

Over: LITTLE JUNIATA RIVER

1 MI S OF BELLWOOD, Blair, PA

Built 2014 Load: 37.3 t ADT: 7,875

T-357

Good

Over: BEAVERDAM RUN

1500 FT SE OF SR 22, Mifflin, PA

Built 2014 Load: 37.3 t ADT: 399

Wampum Rd

Good

Over: Jenkins Run

Int Old Rt 18 & Halltown, Lawrence, PA

Built 2015 Load: 37.3 t ADT: 250

SOUTH WOLF ROCK RD

Good

Over: TUB MILL RUN

FORBES STATE FOREST, Somerset, PA

Built 2014 Load: 37.3 t ADT: 25

SR 970- PA 970

Good

Over: W BR SUSQUEHANNA RIVER

SHAWVILLE, Clearfield, PA

Built 2015 Load: 37.3 t ADT: 617

SR 1027 (LR175)

Good

Over: SPRING CREEK

COLD SPRINGS BRIDGE, Lehigh, PA

Built 2015 Load: 37.3 t ADT: 2,315

Lock Street

Good

Over: Manayunk Canal

West of Main Street, Philadelphia, PA

Built 2015 Load: 37.3 t ADT: 500

MORWOOD ROAD

Good

Over: PA TPK (I-476)

1.25 MI. N PA-113 2918K09, Montgomery, PA

Built 2015 Load: 37.3 t ADT: 3,189

Holden Brook Rd

Good

Over: Holden Creek

2 Mi NW of OSCEOLA, Tioga, PA

Built 2015 Load: 37.3 t ADT: 274

Lehigh Street

Good

Over: Water St Lehigh Riv. NS

Hokendauqua-N.Catasauqua, Lehigh, PA

Built 2015 Load: 37.3 t ADT: 12,577

BENSALEM BLVD.

Good

Over: PA TURNPIKE (I-276)

3/4 MILE W. I-95; 3262F10, Bucks, PA

Built 2015 Load: 37.3 t ADT: 6,476

Washington Ave

Good

Over: Jordan Run

424001 New Galilee Boro, Beaver, PA

Built 2016 Load: 37.3 t ADT: 200

BRIDGE 2809 T-955

Good

Over: OVER TURKEY RUN

OAK HILL RD. SHENANGO TWP, Mercer, PA

Built 2016 Load: 37.3 t ADT: 97

MEAD AVENUE

Good

Over: FRENCH CREEK

MEAD AVE. MEADVILLE, Crawford, PA

Built 2016 Load: 37.3 t ADT: 5,268

PA 182; SR 0182

Good

Over: TRIB OF S BR CODORUS CR

1 MI. W. LEADER HEIGHT, York, PA

Built 2016 Load: 37.3 t ADT: 8,681

SR 2013

Good

Over: BLACKLICK CREEK

2.4 Mi N SR 22 Inter., Indiana, PA

Built 2016 Load: 37.3 t ADT: 335

SR 0068

Good

Over: SULLIVAN RUN

0.6 Mi W SR 8 Inter., Butler, PA

Built 2016 Load: 37.3 t ADT: 15,687

SR 0524 TR 524

Good

Over: KENNEDY CREEK

N ABNGTN TP .2M E SR 4007, Lackawanna, PA

Built 2016 Load: 37.3 t ADT: 1,003

Claypoole Rd

Good

Over: Buffalo Creek

CLAYPOOLE ROAD NO.3, Armstrong, PA

Built 2016 Load: 37.3 t ADT: 451

Steuben Road

Good

Over: E. Br. Monocacy Creek

Between PA 512 & 191, Northampton, PA

Built 2016 Load: 37.3 t ADT: 500

Bridge Rd (SR2009)

Good

Over: REDBANK CREEK

LAWSONHAM NO.1, Clarion, PA

Built 2018 Load: 37.3 t ADT: 427

East Branch Road

Good

Over: STANDING STONE CREEK

200 FT EAST OF SR 26, Huntingdon, PA

Built 2017 Load: 37.3 t ADT: 280

Cuba Mills Road

Good

Over: Lost Creek

0.5 MI E CUBA MILLS, Juniata, PA

Built 2018 Load: 37.3 t ADT: 507

School St (SR1004)

Good

Over: Little Lost Creek

MCALISTERVILLE, Juniata, PA

Built 2018 Load: 37.3 t ADT: 721

Free Spring Church

Good

Over: UNT to Lost Creek

OAKLAND MILLS, Juniata, PA

Built 2017 Load: 37.3 t ADT: 513

Reinholds Rd

Good

Over: Trib Little Cocalico Crk

0.5 MI NE OF DENVER, Lancaster, PA

Built 2017 Load: 37.3 t ADT: 1,662

SR 46-PA 46

Good

Over: Havens Run

3 MI SE BETULA, McKean, PA

Built 2019 Load: 37.3 t ADT: 500

Wilcox Clermont Rd

Good

Over: Seven Mile Run

6 MI SW CLERMONT, McKean, PA

Built 2018 Load: 37.3 t ADT: 294

SR 33 (LR 1098NB)

Good

Over: SR 22 (LR 772)

US22/PA33 INTERCHANGE, Northampton, PA

Built 2018 Load: 37.3 t ADT: 42,984

MATLICK RD(SR2005)

Good

Over: ELK LICK CREEK

2 MI WEST OF SR 2004, Somerset, PA

Built 2017 Load: 37.3 t ADT: 333

SR 1018

Good

Over: Beaver Creek

NEW MILFORD .6 M W TR 11, Susquehanna, PA

Built 2017 Load: 37.3 t ADT: 245

SR 2021 SH

Good

Over: I-81 NB & SB

LENOX TWP OVER SR 0081, Susquehanna, PA

Built 2017 Load: 37.3 t ADT: 148

Southview Rd

Good

Over: MILLERS RUN

MOUNT PLEASANT TOWNSHIP, Washington, PA

Built 2018 Load: 37.3 t ADT: 789

JACOBS MILL RD

Good

Over: OIL CREEK

JACOBS MILLS, York, PA

Built 2018 Load: 37.3 t ADT: 912

Mauch Chunk St

Good

Over: Beaverdam Run

PACKERTON HOLLOW, Carbon, PA

Built 2017 Load: 37.3 t ADT: 9,529

19th Street

Good

Over: Vine Street Expy (I-676)

N of B Frank. Pky 3590-C7, Philadelphia, PA

Built 2017 Load: 37.3 t ADT: 8,800

LOCUST POINT RD

Good

Over: YELLOW BREECHES CREEK

1 MI.W. OF WILLIAMS GROVE, Cumberland, PA

Built 2017 Load: 37.3 t ADT: 908

T436 Carneys X Rd

Good

Over: Little Conemaugh River

1 Mile N. of Lilly, Cambria, PA

Built 2017 Load: 37.3 t ADT: 100

POTTSTOWN BYPASS

Good

Over: SCHUYLKILL RIVER

3/4 MILE W. PA-100 3138B2, Montgomery, PA

Built 2017 Load: 37.3 t ADT: 36,973

VALLEY FORGE ROAD

Good

Over: COUNTY LINE EXPRESSWAY

422 INTERCHANGE 3366C04, Montgomery, PA

Built 2017 Load: 37.3 t ADT: 22,010

Walnut Hill Road

Good

Over: INDIAN RUN

2 MILE SW OF MILLERSVILLE, Lancaster, PA

Built 2017 Load: 37.3 t ADT: 153

US 219

Good

Over: SR 3010

5.2 MILE NW OF BERLIN, Somerset, PA

Built 2018 Load: 37.3 t ADT: 2,137

US 219

Good

Over: SR 3010

5.2 MILE NW OF BERLIN, Somerset, PA

Built 2018 Load: 37.3 t ADT: 2,038

Showing 15,051-15,100 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.