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 2019 Five Forks

Good

Over: TRIB. ANTIETAM CREEK

Five Forks, Franklin, PA

Built 2007 Load: 56.2 t ADT: 1,289

S.R. 3002

Good

Over: PA TURNPIKE

TAYLOR BORO, Lackawanna, PA

Built 2007 Load: 56.2 t ADT: 801

UTICA ROAD

Good

Over: WARDEN RUN

CANAL TOWNSHIP, Venango, PA

Built 2009 Load: 56.2 t ADT: 643

SR 0218

Good

Over: Roberts Run

E of Brave, Greene, PA

Built 2008 Load: 56.2 t ADT: 1,458

SR 3006

Good

Over: ARIEL CREEK

SALEM TWP. .2 M N SR 3013, Wayne, PA

Built 2009 Load: 56.2 t ADT: 582

SR 4013

Good

Over: CORK HILL CREEK

APOLACON TWP .6M E TR 858, Susquehanna, PA

Built 2010 Load: 56.2 t ADT: 198

Burd Street

Good

Over: Amtrak

Royalton, Dauphin, PA

Built 2010 Load: 56.2 t ADT: 1,473

T-408 NISSLEY ROAD

Good

Over: SWARR RUN

2000 FT SOUTH OF SR 4020, Lancaster, PA

Built 2010 Load: 56.2 t ADT: 930

South Street

Good

Over: SEPTA

East of 33rd Street, Philadelphia, PA

Built 2010 Load: 56.2 t ADT: 18,600

SCOTIA HOLLOW RD

Good

Over: SCOTIA RUN

XC01 Scotia Hollow Bridge, Allegheny, PA

Built 2008 Load: 56.2 t ADT: 4,100

PA TPK (I-476)

Good

Over: SEPTA RR

Near Center Square, Montgomery, PA

Built 2014 Load: 56.2 t ADT: 25,172

SR 2063

Good

Over: Brady Run

BRADY RUN NO.3, Armstrong, PA

Built 2022 Load: 56.4 t ADT: 224

T-359 GILBERT RD

Good

Over: CLEAR RUN

3.5 MI NW of SR 4005, Jefferson, PA

Built 1920 Load: 56.7 t ADT: 50

RAMP MT-B

Good

Over: SR 0376 EB WB(RAMP MT-C)

RAMP MT-B OVER SR 376, Allegheny, PA

Built 1992 Load: 57.0 t ADT: 4,073

Water Street

Good

Over: Williams Run

Christiana Borough, Lancaster, PA

Built 2017 Load: 57.0 t ADT: 1,564

FR 131

Good

Over: TRIB TO EA BR MILLSTONE

3 MILES SOUTH OF LAMONAVI, Elk, PA

Built 2022 Load: 57.0 t ADT: 10

SR 0051 SB

Good

Over: SR 0837

TR 51 SB OVER TR 837, Allegheny, PA

Built 1951 Load: 57.2 t ADT: 10,480

AIRPORT EX

Good

Over: SERVICE RD & MCCLAREN RN

NEAR MCCLAREN RN RD INTCH, Allegheny, PA

Built 1992 Load: 57.2 t ADT: 19,908

PA TURNPIKE RAMP G

Good

Over: SR 1001

ALLEGHENY VAL.INT.RAMPG, Allegheny, PA

Built 1939 Load: 57.2 t ADT: 10,220

PINE RUN RD

Good

Over: PINE RUN

1/4 MI. SOUTH OF SR 0588, Beaver, PA

Built 2001 Load: 57.2 t ADT: 290

BACKBONE RD

Good

Over: RACCOON CREEK

004035 PATTONS BRIDGE, Beaver, PA

Built 2005 Load: 57.2 t ADT: 50

SR 4007

Good

Over: SLOANS HOLLOW RUN

1.75 MI.SW.OF CESSNA, Bedford, PA

Built 1937 Load: 57.2 t ADT: 178

SR 4016

Good

Over: KETTLE CREEK

VILLAGE OF GREENWOOD, Blair, PA

Built 1952 Load: 57.2 t ADT: 7,045

SR 1029

Good

Over: TRIBUTARY BULLARD CREEK

4 MI NORTH OF NORTH ROME, Bradford, PA

Built 1961 Load: 57.2 t ADT: 185

SR0068

Good

Over: BREAKNECK CREEK

EVANS CITY NO.1, Butler, PA

Built 1990 Load: 57.2 t ADT: 18,366

SR 8018

Good

Over: SOLOMON RUN

DALE EXIT PA 56, Cambria, PA

Built 1964 Load: 57.2 t ADT: 2,709

EXTON BYPASS(WB)RM

Good

Over: POTTSTOWN PIKE

S RTE 100/30 21J12, Chester, PA

Built 1995 Load: 57.2 t ADT: 21,142

BEECHCLIFF DR.T606

Good

Over: BRENIZER RUN

4.2 NW HOGSTWN/BRENIZER, Cumberland, PA

Built 1930 Load: 57.2 t ADT: 800

SR 1001

Good

Over: JOHNSON RUN

2 MI N GLEN HAZEL, Elk, PA

Built 1990 Load: 57.2 t ADT: 481

SR 1018

Good

Over: COCALICO CREEK

1.5 MI.E. OF ROTHSVILLE, Lancaster, PA

Built 1968 Load: 57.2 t ADT: 5,181

JAMES STREET

Good

Over: PEDESTRIAN TRAIL

600 FT WEST OF US 222, Lancaster, PA

Built 1948 Load: 57.2 t ADT: 515

SR 2039 (LR 39114)

Good

Over: SAUCON CREEK

AT LR 39002, Lehigh, PA

Built 1985 Load: 57.2 t ADT: 5,433

SR 2031

Good

Over: OVER MILL CREEK

2 MI NW OF MONTOURSVILLE, Lycoming, PA

Built 1996 Load: 57.2 t ADT: 451

US 15 NBL

Good

Over: OVER MILL LANE SR 3014

.5 MI. N. OF WILLIAMSPORT, Lycoming, PA

Built 1990 Load: 57.2 t ADT: 8,045

SR 522-US 522

Good

Over: KISHACOQUILLAS CREEK

LEWISTOWN BORO, Mifflin, PA

Built 1991 Load: 57.2 t ADT: 5,389

LONGVIEW ROAD

Good

Over: NS RAILROAD

LONGVIEW ROAD 3139-H7, Montgomery, PA

Built 1989 Load: 57.2 t ADT: 900

SR 87

Good

Over: TRIB.LITTLE LOYALSOCK CK

3.5 MI SW OF DUSHORE, Sullivan, PA

Built 1993 Load: 57.2 t ADT: 965

I-80 EB

Good

Over: OVER DEITRICK RD T-519

4 MI SW OF WHITE DEER, Union, PA

Built 1970 Load: 57.2 t ADT: 9,978

I-80 WB

Good

Over: OVER DIETRICK RD T-519

4 MI SW OF WHITE DEER, Union, PA

Built 1970 Load: 57.2 t ADT: 10,065

HOOFNAGLE ROAD

Good

Over: WEIKERT RUN

WEIKERT RUN RD INTERSECT, Union, PA

Built 1997 Load: 57.2 t ADT: 30

SR 0050

Good

Over: REISSING RUN

CECIL TOWNSHIP, Washington, PA

Built 1975 Load: 57.2 t ADT: 9,414

CARUTHERS LANE

Good

Over: EAST BR OF TINKERS RUN

CARUTHERS LANE, Westmoreland, PA

Built 1999 Load: 57.2 t ADT: 3,500

SR 0011 TR 11

Good

Over: SR 0092 TR 92

NICHOLSON BORO OVER TR 92, Wyoming, PA

Built 1948 Load: 57.2 t ADT: 2,461

RAMP SV

Good

Over: THIRD STREET

VINE ST.INTERCH. 3590G07, Philadelphia, PA

Built 1989 Load: 57.2 t ADT: 24,755

SR 15 NORTH BOUND

Good

Over: OVER SR 414

1 MI. W OF. LIBERTY, Tioga, PA

Built 1998 Load: 57.2 t ADT: 5,606

SR 0006 TR 6

Good

Over: HOLBERT CREEK

TEXAS TWP .1 M W SR 2009, Wayne, PA

Built 2000 Load: 57.2 t ADT: 13,350

MOUNT ROYAL BLVD

Good

Over: CSX RR

NEAR DUNCAN AVE, Allegheny, PA

Built 2001 Load: 57.2 t ADT: 4,160

SR 4021 BEATTY SCH

Good

Over: OVER SHENANGO RIVER TRIB

SALEM TOWNSHIP, Mercer, PA

Built 2001 Load: 57.2 t ADT: 320

T-658 LEIMBACH RD

Good

Over: GRAVEL RUN

1.83 MI.SE.WOODCOCK BORO, Crawford, PA

Built 2004 Load: 57.2 t ADT: 100

RAMP F

Good

Over: Chartiers Creek WERR

BRIDGEVILLE INTERCHANGE, Allegheny, PA

Built 2008 Load: 57.2 t ADT: 6,256

Showing 19,601-19,650 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.