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

BIGELOW BV

Fair

Over: BLOOMFIELD BRIDGE RAMP F

009 Bigelow Blvd Underpas, Allegheny, PA

Built 1986 Load: 59.9 t ADT: 20,100

WILL ST

Fair

Over: LONG RUN

304002 OFF SR 0148, Allegheny, PA

Built 1930 Load: 59.9 t ADT: 100

RAMP J (VETS BRG)

Fair

Over: N-S RR PAT LRT PATEBSWY

Veterans Bridge, Allegheny, PA

Built 1986 Load: 59.9 t ADT: 11,554

SR3004

Fair

Over: BUFFALO CREEK

BOGGSVILLE NO.2, Armstrong, PA

Built 1935 Load: 59.9 t ADT: 795

FRANKFORT RD

Fair

Over: SR 18 NB O/ 8041 RAMP A

SR 18 NB O/ 8041 RAMP A, Beaver, PA

Built 1957 Load: 59.9 t ADT: 5,994

SR 0376 EB WB

Fair

Over: SR 4008

1/4 MI. SOUTH OF SR 0051, Beaver, PA

Built 1971 Load: 59.9 t ADT: 10,890

SR 0376 EB WB

Fair

Over: SR 4008

1/4 MI. SOUTH OF SR 0051, Beaver, PA

Built 1971 Load: 59.9 t ADT: 10,784

RIVERVIEW RD

Fair

Over: PINE RUN

20E.OF INTER W/SR1021, Beaver, PA

Built 1934 Load: 59.9 t ADT: 3,624

PA TPK (I-376) WB

Fair

Over: TRIB JORDAN RUN

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 59.9 t ADT: 9,871

BIELERS RUN ROAD

Fair

Over: BIELERS RUN

004050 2 MI W OF FAIRVIEW, Beaver, PA

Built 1994 Load: 59.9 t ADT: 50

SR 3017

Fair

Over: COVE RUN

1 MI.E.OF MANNS CHOICE, Bedford, PA

Built 1937 Load: 59.9 t ADT: 130

T-402 Boozer Rd

Fair

Over: PA TPK (I-76)

EAST OF NEW BUENA VISTA, Bedford, PA

Built 1993 Load: 59.9 t ADT: 200

INTERSTATE 95

Fair

Over: SAINT FRANCIS CREEK

EDDINGTON 46A01, Bucks, PA

Built 1964 Load: 59.9 t ADT: 83,629

SACKETTS FORD ROAD

Fair

Over: LITTLE NESHAMINY CREEK

RUSHLAND 30E09, Bucks, PA

Built 1973 Load: 59.9 t ADT: 1,942

SR0108

Fair

Over: WOLF CREEK

NEAR SLIPPERY ROCK, Butler, PA

Built 1993 Load: 59.9 t ADT: 6,316

SR1014

Fair

Over: BONNIE BROOK

CARBON CENTER NO.2, Butler, PA

Built 1991 Load: 59.9 t ADT: 123

T-761 KECK ROAD

Fair

Over: BONNIE BROOK

0.75 MI SW OF CARBON CNTR, Butler, PA

Built 1996 Load: 59.9 t ADT: 100

SR0080 WB

Fair

Over: SR2014 WATERSON RD.

WATERSON WB, Clarion, PA

Built 1966 Load: 59.9 t ADT: 9,982

SR3007

Fair

Over: CLARION RIVER

CANOE RIPPLE, Clarion, PA

Built 1991 Load: 59.9 t ADT: 756

ON TSR 300

Fair

Over: BEAVER RUN

1 MI W HOUTZDALE, Clearfield, PA

Built 1952 Load: 59.9 t ADT: 271

T302 COUNTY BR# 32

Fair

Over: SO. BR. ROARING CREEK

6 MI.SW OF NUMIDIA, Columbia, PA

Built 1940 Load: 59.9 t ADT: 120

PINE GROVE RD.

Fair

Over: MOUNTAIN CREEK

PINE GROVE FURNACE, Cumberland, PA

Built 1935 Load: 59.9 t ADT: 480

MID-COUNTY EXWY.SB

Fair

Over: MACDADE BLVD & CRUM CR.

MACDADE BLVD.INTR. 34J13, Delaware, PA

Built 1987 Load: 59.9 t ADT: 36,649

LANGFORD ROAD

Fair

Over: LANGFORD RUN

1 Mi S SR3 ADC13-E6, Delaware, PA

Built 1928 Load: 59.9 t ADT: 51

SR 2003 FLATT ROAD

Fair

Over: OVER FRENCH CREEK

LEBOUEF TOWNSHIP, Erie, PA

Built 1976 Load: 59.9 t ADT: 2,264

SR 4002 DAWSON RD.

Fair

Over: OVER DAWSON RUN

HARMONY TOWNSHIP, Forest, PA

Built 1952 Load: 59.9 t ADT: 32

SR 3007

Fair

Over: PALMER RUN

1.5 MI.N.OF NEEDMORE, Fulton, PA

Built 1934 Load: 59.9 t ADT: 224

SR3011

Fair

Over: BLACKLICK CREEK

GRAFTON, Indiana, PA

Built 1953 Load: 59.9 t ADT: 1,098

SR3035

Fair

Over: TEARING RUN

TEARING RUN NO.1, Indiana, PA

Built 1947 Load: 59.9 t ADT: 1,779

FIFTH STREET

Fair

Over: MARSH RUN

BTW E LOCUST ST & ELM ST, Indiana, PA

Built 1961 Load: 59.9 t ADT: 1,200

US 30; SR 0030

Fair

Over: School Drive/N. 9th St.

Columbia Boro, Lancaster, PA

Built 1970 Load: 59.9 t ADT: 48,561

T395 SHAFFER ROAD

Fair

Over: HELL RUN

BTW SR 2022 & SR 2028, Lawrence, PA

Built 1901 Load: 59.9 t ADT: 75

ARDEN ROAD(T721)

Fair

Over: GULPH CREEK

At SR320 ADC 3367-F10, Montgomery, PA

Built 1991 Load: 59.9 t ADT: 700

I-78EB(LR 1045)

Fair

Over: WILLIAMS STREET

I78 EB OVER WILLIAMS ST., Northampton, PA

Built 1988 Load: 59.9 t ADT: 27,801

SR 4017

Fair

Over: COW RUN

1 MILE SOUTH SHINGLEHOUSE, Potter, PA

Built 1960 Load: 59.9 t ADT: 234

SR 4002 (LR 53095)

Fair

Over: W. BR. SCHUYLKILL RIVER

1.5 MI. N OF MINERSVILLE, Schuylkill, PA

Built 1957 Load: 59.9 t ADT: 4,084

EAST PATTERSON ST

Fair

Over: MILL CREEK

ST.CLAIR ON PATTERSON, Schuylkill, PA

Built 1990 Load: 59.9 t ADT: 600

SR 522

Fair

Over: TRIBUTARY MIDDLE CREEK

VILLAGE OF BEAVER SPRINGS, Snyder, PA

Built 1990 Load: 59.9 t ADT: 6,678

SR 2005

Fair

Over: ELK LICK CREEK

1 MI.W.OF SUMMIT MILLS, Somerset, PA

Built 1939 Load: 59.9 t ADT: 333

SR 0081 I-81 SB

Fair

Over: Central New York RR

GREAT BEND BO .2M N TR171, Susquehanna, PA

Built 1961 Load: 59.9 t ADT: 9,450

SR 0706 TR 706

Fair

Over: NORFOLK SOUTHERN RR

NEW MILFORD TWP JCT TR 11, Susquehanna, PA

Built 1986 Load: 59.9 t ADT: 3,521

SR 3004

Fair

Over: WHITE CREEK

SPRNGVLE TP .1M W SR 3021, Susquehanna, PA

Built 1992 Load: 59.9 t ADT: 290

S.R. 287

Fair

Over: BABB CREEK

VILLAGE OF MORRIS, Tioga, PA

Built 1991 Load: 59.9 t ADT: 2,444

S.R. 287

Fair

Over: WILSON CREEK

0.3 MI NW OF MORRIS, Tioga, PA

Built 1991 Load: 59.9 t ADT: 2,444

SR 0287

Fair

Over: OVER NORTH RUN

VILLAGE OF HOLIDAY, Tioga, PA

Built 1975 Load: 59.9 t ADT: 2,620

SR 3006

Fair

Over: OVER STONY FORK CREEK

VILLAGE OF STONY FORK, Tioga, PA

Built 1950 Load: 59.9 t ADT: 245

JACKSON STREET

Fair

Over: CHARLESTON CREEK

JACKSON ST.WELLSBORO BORO, Tioga, PA

Built 1989 Load: 59.9 t ADT: 200

SR 192

Fair

Over: OVER RAPID RUN

4 MI N OF COWAN, Union, PA

Built 1932 Load: 59.9 t ADT: 870

SR 427

Fair

Over: OVER SUGAR CREEK

SUGAR CREEK BOROUGH, Venango, PA

Built 1933 Load: 59.9 t ADT: 1,127

SR 2022

Fair

Over: TENMILE CREEK

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1988 Load: 59.9 t ADT: 208

Showing 11,551-11,600 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.