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 2013

Good

Over: OVER LAUREL RUN

5 MI SOUTH OF CLARKSTOWN, Lycoming, PA

Built 2018 Load: 37.6 t ADT: 97

SR 4015 (LR 06193)

Good

Over: LESHER RUN

3 M. SW OF BERNE, Berks, PA

Built 2018 Load: 37.6 t ADT: 426

RAMP I

Good

Over: I-95; RAMPS EE C X Y

BETSY ROSS INTC. 3591G01, Philadelphia, PA

Built 2018 Load: 37.6 t

PA 403 CENTRAL AVE

Good

Over: STONYCREEK RIVER

0.1 MILE NORTH OF PA 756, Cambria, PA

Built 2018 Load: 37.6 t ADT: 4,669

PA 849; SR 0849

Good

Over: BUFFALO CREEK

NEAR WALNUT GROVE, Perry, PA

Built 2018 Load: 37.6 t ADT: 306

SR 147

Good

Over: OVER T-568&CHILLISQU. CR

VILLAGE OF CHILLISQUAQUE, Northumberland, PA

Built 2019 Load: 37.6 t ADT: 300

POTTSTOWN BY-PASS

Good

Over: N-S RR (M.P. 38.29)

L POTTSGROVE 3139C02, Montgomery, PA

Built 2019 Load: 37.6 t ADT: 55,039

SR 2001

Good

Over: TOMS CREEK

LEHMAN TWP 300 S SR 2007, Pike, PA

Built 2019 Load: 37.6 t ADT: 2,800

SR 147 NB

Good

Over: CSVT Wooded Run Creek

Over Wooded Run Creek, Northumberland, PA

Built 2019 Load: 37.6 t ADT: 332

SR 147 SB

Good

Over: Over Wooded Run Creek

Over Wooded Run Creek, Northumberland, PA

Built 2019 Load: 37.6 t ADT: 300

SR 4023

Good

Over: TRIB W BR LACKAWAXEN RVR

MT PLEASNT .5 M N SR 4025, Wayne, PA

Built 2019 Load: 37.6 t ADT: 229

Mill Street

Good

Over: Monocacy Creek

Between PA 329 & 512, Northampton, PA

Built 2019 Load: 37.6 t ADT: 900

INTERSTATE 95 (NB)

Good

Over: RICHMOND & ANN ST SEPTA

N.OF CAMBRIA ST. 3591C04, Philadelphia, PA

Built 2019 Load: 37.6 t ADT: 80,788

POTATO VALLEY RD.

Good

Over: Fishing creek

2 NE FT HUNTER/FISHING CR, Dauphin, PA

Built 2020 Load: 37.6 t ADT: 431

1003;Lancaster St.

Good

Over: Little Swatara Creek

South End of Jonestown, Lebanon, PA

Built 2020 Load: 37.6 t ADT: 2,703

SR 322-US 322

Good

Over: SR 2019 / POTTER RUN

1 MI SE POTTERS MILLS E.B, Centre, PA

Built 2020 Load: 37.6 t ADT: 7,254

PA TPK 0576

Good

Over: SR 4037 SR 4012 stream

Robinson Township, Washington, PA

Built 2017 Load: 37.6 t ADT: 20,710

EAST LOCUST LANE

Good

Over: E. BR. RED CLAY CREEK

0.6 MI E SR82 ADC 3801-H2, Chester, PA

Built 2023 Load: 37.6 t ADT: 750

SAMPLE BR RD T596

Good

Over: CONODOGUINET CREEK

3.1 N MCHNBRG SILVER SPRG, Cumberland, PA

Built 2021 Load: 37.6 t ADT: 679

PA 392; SR 0392

Good

Over: Fishing Creek

1 MI SOUTH OF YOCUMTOWN, York, PA

Built 2021 Load: 37.6 t ADT: 7,968

PA 74; SR 0074

Good

Over: Letort Spring Run

CARLISLE BORO, Cumberland, PA

Built 2021 Load: 37.6 t ADT: 20,122

PENNSWOOD ROAD

Good

Over: AMTRAK PHI-HBG

.1 Mi N of US-30 3478-A7, Montgomery, PA

Built 2021 Load: 37.6 t ADT: 6,676

LAWTON ST

Good

Over: MILL CREEK

ST.CLAIR BORO LAWTON ST., Schuylkill, PA

Built 2022 Load: 37.6 t ADT: 400

SR 1022

Good

Over: SR 15

Snyder County Line, Snyder, PA

Built 2022 Load: 37.6 t ADT: 300

SR 0084 I-84 EB

Good

Over: Wallenpaupack Creek

GREENE TWP 1.5 M W TR 507, Pike, PA

Built 2022 Load: 37.6 t ADT: 7,403

SR2027 LR39001

Good

Over: PA TPK (I-476)

1.5 MI SOUTH OF EMMAUS, Lehigh, PA

Built 2022 Load: 37.6 t ADT: 2,544

TIOGA TWP T-669

Good

Over: STEAM MILL CREEK

2.5 MI. NE OF TIOGA BORO, Tioga, PA

Built 2023 Load: 37.6 t ADT: 150

DEWEY ST

Good

Over: LITTLE PINE CREEK

430002 DEWEY ST BRIDGE, Allegheny, PA

Built 1981 Load: 37.9 t ADT: 500

T408 Sweetroot Rd

Good

Over: SHOBERS RUN

BEDFORD SPRINGS, Bedford, PA

Built 1940 Load: 37.9 t ADT: 350

BRISTOL ROAD

Good

Over: MILL CREEK

.5MI.NORTH PA-532 36A12, Bucks, PA

Built 1963 Load: 37.9 t ADT: 3,802

MOYER ROAD

Good

Over: PLEASANT SPRING CREEK

50 S.PERKASIE 2920-H1, Bucks, PA

Built 1975 Load: 37.9 t ADT: 250

SR 879-PA 879

Good

Over: ANDERSON CREEK

CURWENSVILLE, Clearfield, PA

Built 1950 Load: 37.9 t ADT: 3,967

ORELAND MILL ROAD

Good

Over: SUNNYBROOK CREEK

0.45 MI NW SR 73 3369K2, Montgomery, PA

Built 1959 Load: 37.9 t ADT: 7,900

SR 3012

Good

Over: WALLENPAUPACK CREEK

GREENE TWP 100 E TR 191, Pike, PA

Built 1955 Load: 37.9 t ADT: 258

SR 1006 (LR 53073)

Good

Over: W. BR. SCHUYLKILL RIVER

3 MI. W. OF ST. CLAIR, Schuylkill, PA

Built 1962 Load: 37.9 t ADT: 4,049

T431 CAMEL ROAD

Good

Over: GAZZAM RUN

300 FT NE OF SR 729, Clearfield, PA

Built 2006 Load: 37.9 t ADT: 50

T564 MILLER FARM R

Good

Over: RYOT RUN

JUST SOUTH OF RYOT, Bedford, PA

Built 2009 Load: 37.9 t ADT: 25

Big Mountain Rd.

Good

Over: Conewago Creek

1.5 MI.W. OF BIG MOUNT, York, PA

Built 2009 Load: 37.9 t ADT: 571

WEST CHESTER BYPAS

Good

Over: WEST CHESTER RR (SEPTA)

NEAR WEST CHESTER 32E12, Chester, PA

Built 2011 Load: 37.9 t ADT: 56,708

SR 173 Grove City

Good

Over: WOLF CREEK BRANCH

WORTH TWP, Mercer, PA

Built 2010 Load: 37.9 t ADT: 1,543

MEYERS RUN RD

Good

Over: BLACK MOSHANNON CREEK

2.5 MI N OF HUCKLEBERRY, Centre, PA

Built 2010 Load: 37.9 t ADT: 20

SR 0019 NB & SB

Good

Over: SR 0422 EB & WB

1.4mi West of SR 0079, Butler, PA

Built 2011 Load: 37.9 t ADT: 6,486

SR 830

Good

Over: SLAB RUN

FALLS CREEK, Clearfield, PA

Built 2011 Load: 37.9 t ADT: 7,208

PA 869

Good

Over: TRIB BOBS CREEK

1.64 MILE WEST FROM I-99, Bedford, PA

Built 2011 Load: 37.9 t ADT: 674

PA 316; Wayne Hwy.

Good

Over: E Br Little Antietam Ck

.25MI N. of MD. LINE, Franklin, PA

Built 2011 Load: 37.9 t ADT: 4,866

SR 3006

Good

Over: York Run

1.1 mi W from SR 0119, Fayette, PA

Built 2011 Load: 37.9 t ADT: 784

SR 1012

Good

Over: WHITE DEER HOLE CREEK

1 MI WEST OF ALLENWOOD, Union, PA

Built 2011 Load: 37.9 t ADT: 378

SR 328

Good

Over: SEELEY CREEK

2 MI. N. OF MOSHERVILLE, Bradford, PA

Built 2011 Load: 37.9 t ADT: 3,537

SR 2015

Good

Over: FRANKSTOWN BR JUNIATA R

WILLIAMSBURG BORO LINE, Blair, PA

Built 2011 Load: 37.9 t ADT: 2,715

CLARISSA STREET

Good

Over: CONRAIL RICHMOND MP 7.41

.5 MI. W. PA 611 3480E08, Philadelphia, PA

Built 2013 Load: 37.9 t ADT: 11,871

Showing 15,201-15,250 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.