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

T-702

Good

Over: TOWN RUN

.4 MILES WEST OF SR 3009, Mifflin, PA

Built 2008 Load: 57.2 t ADT: 25

SR 0438

Good

Over: BR OF S BR TNKHANNOCK CR

SCOTT TWP 0.1 M E SR 4003, Lackawanna, PA

Built 2009 Load: 57.2 t ADT: 981

SR 0051 SB

Good

Over: SOUTH MAIN STREET

WEST END, Allegheny, PA

Built 2010 Load: 57.2 t ADT: 3,319

SR 0081

Good

Over: LIDYS ROAD

DUPONT BORO .2M S EX 178, Luzerne, PA

Built 2010 Load: 57.2 t ADT: 56,620

SR 2004

Good

Over: MIDDLE CREEK

PALMYRA TWP 1 M W TR 6, Wayne, PA

Built 2010 Load: 57.2 t ADT: 631

SR3016 Madison Rd

Good

Over: PA TPK (I-76)

East of Arona, Westmoreland, PA

Built 2009 Load: 57.2 t ADT: 2,157

BUCK ROAD

Good

Over: MACOBY CREEK

0.4 Mi NE PA-29 2805-C7, Montgomery, PA

Built 2012 Load: 57.2 t ADT: 3,724

T-560 OLD RT 19 N

Good

Over: TRIB TO FRENCH CK

0.5 MI N SR 19, Erie, PA

Built 1950 Load: 57.2 t ADT: 110

BUSINESS 376 EB

Good

Over: SR 376

S. END OF AIRPORT EXPWY, Allegheny, PA

Built 1991 Load: 57.3 t ADT: 19,534

SR 3015

Good

Over: LITTLE PAINT CREEK

0.1 MI N OF CAM./SOM. CO, Cambria, PA

Built 2020 Load: 57.3 t ADT: 948

SR 49

Good

Over: HOLDEN CREEK

VILLAGE OF OSCEOLA, Tioga, PA

Built 2010 Load: 57.5 t ADT: 3,676

WEST OHIO ST

Good

Over: NORFOLK SOUTHERN R/R

118 West Ohio St Bridge, Allegheny, PA

Built 1903 Load: 57.7 t ADT: 3,479

BROAD STREET

Good

Over: READING RAILROAD;ROAD

CENTER CITY 3590E07, Philadelphia, PA

Built 1895 Load: 58.0 t ADT: 25,641

US 15; SR 0015

Good

Over: PA 94; SR 0094

E OF YORK SPRINGS, Adams, PA

Built 1957 Load: 58.1 t ADT: 17,119

SR 0028 SB

Good

Over: MADISON AVENUE CITY PGH

SR 28 WB OVER MADISON A., Allegheny, PA

Built 1986 Load: 58.1 t ADT: 6,949

SR 0065 SB

Good

Over: ALLEHGHENY AV.& RP.B

1039 S.B. O/ALLEGHENY AVE, Allegheny, PA

Built 1968 Load: 58.1 t ADT: 19,641

PENNSYLVANIA AV

Good

Over: NORFOLKSOUTHERN RAILWAY

6000 SE OHIO STATE LINE, Beaver, PA

Built 1999 Load: 58.1 t ADT: 7,851

VANKIRK RD

Good

Over: ELKHORN RUN

004014 VANKIRK ROAD, Beaver, PA

Built 1989 Load: 58.1 t ADT: 55

SR 0006

Good

Over: KING CREEK

1.5 MI W. OF RUMMERFIELD, Bradford, PA

Built 1993 Load: 58.1 t ADT: 6,211

SR 2011

Good

Over: ELK CREEK

COBURN, Centre, PA

Built 1989 Load: 58.1 t ADT: 934

MERCER MILL ROAD

Good

Over: MIDDLE WHITE CLAY CREEK

LONDON BRITAIN TWP.54C05, Chester, PA

Built 1996 Load: 58.1 t ADT: 298

SR 89 CHURCH RUN

Good

Over: OVER CHURCH RUN

OIL CREEK TOWNSHIP, Crawford, PA

Built 1988 Load: 58.1 t ADT: 827

T-421 SUGAR LK.RD.

Good

Over: OVER SUGAR LAKE TRIB.

NORTH END OF SUGAR LAKE, Crawford, PA

Built 1920 Load: 58.1 t ADT: 250

SR 2003

Good

Over: MOUNTAIN CREEK

MOUNT HOLLY SPRINGS BORO, Cumberland, PA

Built 1992 Load: 58.1 t ADT: 3,815

MID-COUNTY EXWY.SB

Good

Over: BROWNS RUN; ACCESS ROAD

NEAR VILLANOVA 14H09, Delaware, PA

Built 1990 Load: 58.1 t ADT: 41,310

SR 4011

Good

Over: ACKERLY CREEK

DALTON BORO 1.2M N TR 6, Lackawanna, PA

Built 1997 Load: 58.1 t ADT: 786

MAIN ST (SR. 3024)

Good

Over: SPRING BROOK

ADJACENT TO PARK STREET, Lackawanna, PA

Built 1956 Load: 58.1 t ADT: 8,767

SR 1035

Good

Over: LITITZ RUN

LITITZ BORO, Lancaster, PA

Built 1995 Load: 58.1 t ADT: 1,013

PA TPK (I-376)

Good

Over: T-359

NORTH BEAVER TWP., Lawrence, PA

Built 1992 Load: 58.1 t ADT: 9,871

SR 3013(LR 39082)

Good

Over: MILL CREEK

NORTH OF US 22, Lehigh, PA

Built 1957 Load: 58.1 t ADT: 915

SR 0087 (LR 291)

Good

Over: MILL CREEK

0.25 MI N OF MONTOURSVILL, Lycoming, PA

Built 1989 Load: 58.1 t ADT: 8,569

SR 0973

Good

Over: OVER MILL CREEK

1 MI EAST OF HEPBURNVILLE, Lycoming, PA

Built 1990 Load: 58.1 t ADT: 1,316

SR 4010

Good

Over: OVER WOLF RUN

0.7 MI W OF COGAN HOUSE, Lycoming, PA

Built 1932 Load: 58.1 t ADT: 107

BRIDGE 2711 T-914

Good

Over: OVER WOLF CREEK BRANCH

SOPHER ROAD WOLF CREEK, Mercer, PA

Built 1985 Load: 58.1 t ADT: 39

SR 309 BYPASS

Good

Over: TENNIS AVENUE

NE OF AMBLER 3257G03, Montgomery, PA

Built 1958 Load: 58.1 t ADT: 79,942

T-755 MORNING LAND

Good

Over: ROARING FORK

4.5 MI.S.OF WINDBER, Somerset, PA

Built 1900 Load: 58.1 t ADT: 50

SR 2002

Good

Over: OVER BEAR RUN

1.5 E OF SONESTOWN-DVDSON, Sullivan, PA

Built 1922 Load: 58.1 t ADT: 70

SR 2002

Good

Over: MUNCY CREEK

1 MILE WEST OF NORDMONT, Sullivan, PA

Built 1996 Load: 58.1 t ADT: 70

SR 0011 TR 11

Good

Over: SALT LICK CREEK

NEW MILFRD BO .2M N TR492, Susquehanna, PA

Built 1948 Load: 58.1 t ADT: 4,977

SR 427 SLEEPY HLLW

Good

Over: OVER BEATTY RUN

SUGAR CREEK BOROUGH, Venango, PA

Built 1988 Load: 58.1 t ADT: 898

SR 958

Good

Over: OVER STONY CREEK

FREEHOLD TOWNSHIP, Warren, PA

Built 1988 Load: 58.1 t ADT: 556

SR 0286

Good

Over: BEAVER RUN RESERVOIR

BELL TOWNSHIP, Westmoreland, PA

Built 1952 Load: 58.1 t ADT: 1,630

T466 Char Bro Dr

Good

Over: SEWICKLEY CREEK

199 SOUTH OF SR 3089, Westmoreland, PA

Built 1988 Load: 58.1 t ADT: 666

RAMP A 676WB TO 76

Good

Over: RAMP C 676WB TO 76EB

I-76 AT VINE STR.3590A06, Philadelphia, PA

Built 1989 Load: 58.1 t ADT: 68,665

SR3015

Good

Over: BUFFALO CREEK

WEST WINFIELD NO.3, Armstrong, PA

Built 1999 Load: 58.1 t ADT: 258

2035 (3rd St)

Good

Over: NORFOLK SO. R.R.

3rd St Lemoyne over RR, Cumberland, PA

Built 1999 Load: 58.1 t ADT: 16,836

HARTZ STORE ROAD

Good

Over: ALLEGHENY CREEK

2 MI. SW OF GREEN HILLS, Berks, PA

Built 2003 Load: 58.1 t ADT: 522

BUENA VISTA RD

Good

Over: PEQUEA CREEK

1 MI EAST OF SR 897, Lancaster, PA

Built 2003 Load: 58.1 t ADT: 135

CEDAR KNOLL ROAD

Good

Over: W BR BRANDYWINE CREEK

NEAR CEDAR KNOLL 18H9, Chester, PA

Built 2004 Load: 58.1 t ADT: 1,369

SR4002 NEW HAVENST

Good

Over: AMTRAK

MOUNT JOY BORO, Lancaster, PA

Built 2005 Load: 58.1 t ADT: 4,355

Showing 19,651-19,700 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.