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

EAST MILL ROAD

Good

Over: SUNNYBROOK CREEK

3369-G3 ADC 2008, Montgomery, PA

Built 2013 Load: 33.0 t ADT: 6,716

SR 1003

Good

Over: PA TPK (I-76)

Fairview Twp/SR 1003, York, PA

Built 2013 Load: 33.0 t ADT: 4,932

SR 3013 MAIN ST

Good

Over: LACKAWANNA RIVER

OLD FRG BO 200 N SR 3019, Lackawanna, PA

Built 2014 Load: 33.0 t ADT: 6,214

SR 2002 LEESBRG RD

Good

Over: HUNTER RUN

SPRINGFIELD TWP., Mercer, PA

Built 2014 Load: 33.0 t ADT: 1,010

T-467 Carlson Road

Good

Over: Manada Creek

1 E US22 and PA39, Dauphin, PA

Built 2015 Load: 33.0 t ADT: 650

CORBETT ROAD

Good

Over: CLEAR CREEK

4 MILE SE OF SR 949, Jefferson, PA

Built 2015 Load: 33.0 t ADT: 50

SR 197 WATERFORD R

Good

Over: FRENCH CK. S. BRANCH

UNION CITY BOROUGH, Erie, PA

Built 2015 Load: 33.0 t ADT: 5,575

SR 0903 SH

Good

Over: KEIPER RUN CREEK

0.33 MI. W. Of PA 115, Monroe, PA

Built 2016 Load: 33.0 t ADT: 7,076

SR 1013

Good

Over: PA TPK (I-76)

Near Dorseyville, Allegheny, PA

Built 2015 Load: 33.0 t ADT: 4,773

SR 0267 SH

Good

Over: Stonestreet Creek

Forst Lke TP .8M N SR4012, Susquehanna, PA

Built 2016 Load: 33.0 t ADT: 1,508

BR#29 WANGUM T-367

Good

Over: MIDDLE CREEK

PAUPACK TWP 1.4M E SR3031, Wayne, PA

Built 2016 Load: 33.0 t ADT: 65

Greble Road

Good

Over: Earlakill Run

2.5 MI W. Of Greble, Lebanon, PA

Built 2016 Load: 33.0 t ADT: 473

Lairdsville Road

Good

Over: Big Run

VILLAGE OF LAIRDSVILLE, Lycoming, PA

Built 2016 Load: 33.0 t ADT: 3,176

Centerville Road

Good

Over: TOMS RUN

PINE GROVE FURNACE, Cumberland, PA

Built 2018 Load: 33.0 t ADT: 638

FORDYCE RD

Good

Over: COAL LICK RUN

FRANKLIN TOWNSHIP, Greene, PA

Built 2017 Load: 33.0 t ADT: 955

Boyles Run Rd

Good

Over: Boile Run

.25 MI E OF FISHERS FERRY, Northumberland, PA

Built 2017 Load: 33.0 t ADT: 221

Coudersport Pike

Good

Over: Wildcat Creek

SHARON CENTER, Potter, PA

Built 2017 Load: 33.0 t ADT: 1,857

B.F. PKWY/20TH ST

Good

Over: VINE STREET EXPRESSWAY

20TH ST & LIBRARY 3590C07, Philadelphia, PA

Built 2017 Load: 33.0 t ADT: 26,054

T-720 MILLER RD

Good

Over: TRIB TO COWANSHANNOCK CR

500 feet South of SR-0085, Armstrong, PA

Built 2017 Load: 33.0 t ADT: 100

SR 2021 Ducktown

Good

Over: KREUTZ CREEK

1.5 MILE SE OF HALLAM, York, PA

Built 2017 Load: 33.0 t ADT: 841

SR 3120 Access Rd

Good

Over: Mill Creek

1.1 MI EAST OF YORK CITY, York, PA

Built 2017 Load: 33.0 t ADT: 1,124

SR 4028

Good

Over: Rowes Run

REDSTONE TOWNSHIP, Fayette, PA

Built 2018 Load: 33.0 t ADT: 1,209

NARROW GAUGE TRAIL

Good

Over: HORSE VALLEY RUN

TOBOYNE TOWNSHIP, Perry, PA

Built 2018 Load: 33.0 t ADT: 100

SR 1006

Good

Over: OVER I-180 EBL & WBL

2 MI. N.E.OF WATSONTOWN, Northumberland, PA

Built 2021 Load: 33.0 t ADT: 2,270

SR 4023

Good

Over: BEAVER DAM CREEK

0.6 MI. NORTH OF SR 30, Somerset, PA

Built 2023 Load: 33.0 t ADT: 603

SR 64-PA 64

Good

Over: FISHING CREEK

LAMAR, Clinton, PA

Built 2022 Load: 33.0 t ADT: 6,382

LUTHERAN ROAD

Good

Over: UNNAMED TRIB. MINISTER C

0.3 Mi E SR663; 3027-H3, Montgomery, PA

Built 2022 Load: 33.0 t ADT: 822

RIVER ROAD

Good

Over: TRIB. OF DELAWARE RIVER

LAURELROADS 26B02/ 2813B6, Bucks, PA

Built 2022 Load: 33.0 t ADT: 1,784

S Main St. (T-790)

Good

Over: Toby Creek

OLD RT 11 KINGSTON TWP, Luzerne, PA

Built 2017 Load: 33.0 t ADT: 200

SR 215 KIDDERS CRN

Good

Over: OVER CONNEAUT CREEK

SPRINGFIELD TOWNSHIP, Erie, PA

Built 2023 Load: 33.0 t ADT: 514

FR 614

Good

Over: SUGAR RUN

0.1 MI S OF PA RT 321, McKean, PA

Built 1972 Load: 33.0 t ADT: 50

RAMP FR-A

Good

Over: SR 0376 EB WB

1/8 MILE FROM MOON CLN RD, Allegheny, PA

Built 1992 Load: 33.4 t ADT: 3,274

SR 285 3RD ST.

Good

Over: OVER ADSIT RUN

SADSBURY TOWNSHIP, Crawford, PA

Built 1959 Load: 33.4 t ADT: 2,334

SR 3011 KNAPP ROAD

Good

Over: OVER CONNEAUT CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 1962 Load: 33.4 t ADT: 383

ELM STREET

Good

Over: ABANDON RR & PLYMOUTH CR

.5 MI. EAST I-476 3367K08, Montgomery, PA

Built 1924 Load: 33.4 t ADT: 7,890

SR 0259

Good

Over: FREEMAN RUN

BOLIVAR BOROUGH, Westmoreland, PA

Built 1960 Load: 33.4 t ADT: 943

GIRARD AVENUE

Good

Over: ARAMINGO AVE(SPUR A)

NR.DELAWARE EXPY. 3591A05, Philadelphia, PA

Built 1969 Load: 33.4 t ADT: 1,672

SR 1026 Mt.Airy

Good

Over: Middle Creek

Newtown, Lancaster, PA

Built 2009 Load: 33.4 t ADT: 1,089

PITHOLE ROAD

Good

Over: OVER PITHOLE CREEK

ALLEGHENY TWP., Venango, PA

Built 2009 Load: 33.4 t ADT: 82

SR 2011

Good

Over: Plum Run

just S of SR 2024, Washington, PA

Built 2009 Load: 33.4 t ADT: 1,126

LINCOLN DRIVE

Good

Over: RIDGE AVE; RMP D

1/4 MI. N. I-76 3479G08, Philadelphia, PA

Built 2011 Load: 33.4 t ADT: 14,040

SR 3014

Good

Over: TR.LITTLE ELK CK.

GIRARD TOWNSHIP, Erie, PA

Built 2010 Load: 33.4 t ADT: 452

SR 0115 TR 115

Good

Over: LEHIGH RIVER

BUCK TWP AT MONROE CO LNE, Luzerne, PA

Built 2011 Load: 33.4 t ADT: 4,770

SR 1015

Good

Over: TURNER CREEK

BINGHAM CENTER, Potter, PA

Built 2011 Load: 33.4 t ADT: 151

WELLS ROAD (T-342)

Good

Over: U.S. 202 PARKWAY

.5 MI. W. RTE 611 3034G04, Bucks, PA

Built 2011 Load: 33.4 t ADT: 2,871

LR 499 SR 1002

Good

Over: HONEY CREEK

NAGINEY, Mifflin, PA

Built 2011 Load: 33.4 t ADT: 1,021

LR 62

Good

Over: SAW MILL RUN

BURNSIDE, Clearfield, PA

Built 2011 Load: 33.4 t ADT: 884

PA423 (LR 45037)

Good

Over: TOBYHANNA CREEK

5 MI.NORTH of PA940, Monroe, PA

Built 2012 Load: 33.4 t ADT: 722

PA 35

Good

Over: TROUGH SPRING BRANCH

0.5 MILE SOUTH OF SR 2008, Huntingdon, PA

Built 2012 Load: 33.4 t ADT: 767

SR 0081 - I-81 NB

Good

Over: RR & STAFFORD MEADOW BR

SCRANTON CTY 2M N SR 3016, Lackawanna, PA

Built 2012 Load: 33.4 t ADT: 31,370

Showing 13,401-13,450 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.