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

DEPOT STREET

Good

Over: JACKS RUN

DEPOT STREET, Westmoreland, PA

Built 2006 Load: 74.4 t ADT: 2,835

SR 4004 German Hi

Good

Over: OVER ROSS RUN BRANCH

KINGSLEY TOWNSHIP, Forest, PA

Built 2010 Load: 74.4 t ADT: 161

SR 4001 N SUMMIT

Good

Over: SUGAR RUN TRIB

GREENE TWP, Mercer, PA

Built 2013 Load: 74.5 t ADT: 190

CEMETERY LN

Good

Over: GIRTYS RUN

GI14 GIRTYS RUN NO. 14, Allegheny, PA

Built 2005 Load: 75.3 t ADT: 4,408

SR 2032

Good

Over: NORFOLK SOUTHERN

LEISURE DR-1M.E OFTOWANDA, Bradford, PA

Built 1991 Load: 75.3 t ADT: 1,145

T465 Old Brick Rd

Good

Over: LAUREL LICK RUN

1 MI.N. BRADLEY JUNCTION, Cambria, PA

Built 1997 Load: 75.3 t ADT: 251

PA TPK (I-76)

Good

Over: OREGON ROAD

NEAR TR30 & SR915 JUNCTIN, Fulton, PA

Built 1969 Load: 75.3 t ADT: 21,770

STAGE RD

Good

Over: OVER ULSH GAP RUN

VILLAGE OF BANNERVILLE, Snyder, PA

Built 1953 Load: 75.3 t ADT: 379

SR 1031 GALILEE RD

Good

Over: BEAVER DAM CREEK

DAMASCUS TWP 2 M N TR 371, Wayne, PA

Built 1940 Load: 75.3 t ADT: 314

SR 0982

Good

Over: SAXMAN RUN

DERRY TWP, Westmoreland, PA

Built 2000 Load: 75.3 t ADT: 6,310

T-502 DAVIDSON RD

Good

Over: SOUTH BRANCH GLADE RUN

BTW SR3007 & T382, Butler, PA

Built 2008 Load: 75.3 t ADT: 200

Bridge Lane

Good

Over: Nancy Run

Emerald Hills Development, Northampton, PA

Built 2000 Load: 75.3 t ADT: 100

SR0119

Good

Over: MAHONING CREEK

.3 MI.S. SR 36 INTERSECTI, Jefferson, PA

Built 2010 Load: 75.3 t ADT: 7,611

SR 414

Good

Over: BLUESTONE RUN

VILLAGE OF BLUESTONE, Lycoming, PA

Built 2019 Load: 75.3 t ADT: 597

HOLLOW RD

Good

Over: MCCAUGHTRY RUN

200S.MCCAUGHTRY RUN RD., Beaver, PA

Built 1950 Load: 76.2 t ADT: 887

US 219 & RAMP 8001

Good

Over: KIMBERLY RUN

BERLIN-SOMERSET INTERCHNG, Somerset, PA

Built 1973 Load: 76.2 t ADT: 6,250

HOLME AVENUE

Good

Over: WOODEN BRIDGE RUN

NEAR LONGFORD RD 3482G01, Philadelphia, PA

Built 1921 Load: 76.2 t ADT: 19,397

SR 15 NB

Good

Over: OVER JOHNSON CK & SR2016

.05M.SOUTH OF BLOSSBURG, Tioga, PA

Built 2000 Load: 76.2 t ADT: 4,491

SR 1009

Good

Over: BENNINGHOFF RUN

CHERRYTREE TWP., Venango, PA

Built 2010 Load: 76.2 t ADT: 107

T-470

Good

Over: PA TPK (I-76)

Near TR401 and TR29 JCT, Chester, PA

Built 2010 Load: 76.2 t ADT: 200

RT 0008 NB SB

Good

Over: GOURDHEAD RUN

.5 MI. SOUTH OF SR 1010, Allegheny, PA

Built 1931 Load: 77.1 t ADT: 20,118

TEVEBAUGH RD

Good

Over: TEVEBAUGH RUN

004020 1 MI N/RT 65 BADEN, Beaver, PA

Built 1989 Load: 77.1 t ADT: 90

SR 3006

Good

Over: CATFISH RUN

CATFISH RUN, Clarion, PA

Built 1901 Load: 77.1 t ADT: 33

SR 2017

Good

Over: SPRUCE RUN

2 MI.N.OF VALLEY POINT, Huntingdon, PA

Built 1900 Load: 77.1 t ADT: 97

SR1045

Good

Over: BUFF & PITT RR

ROSEBORO NO.1, Indiana, PA

Built 1991 Load: 77.1 t ADT: 318

I-78 (LR 1045)

Good

Over: TRIB. TO SAUCON CREEK

.5 M. EAST OF PA. 309, Lehigh, PA

Built 1989 Load: 77.1 t ADT: 55,404

SR 287

Good

Over: OVER WILSON CREEK

6 MI NORTH OF MORRIS, Tioga, PA

Built 1983 Load: 77.1 t ADT: 2,444

SR 0015-15 SB

Good

Over: OVER JOHNSON CK & SR2016

.05M.SOUTH OF BLOSSBURG, Tioga, PA

Built 2000 Load: 77.1 t ADT: 4,449

SR 2002

Good

Over: OVER MOSEY RUN

VILLAGE OF SONESTOWN, Sullivan, PA

Built 2000 Load: 77.1 t ADT: 70

SR 22-US 22

Good

Over: SR 1005 ELECTRIC AVENUE

LEWISTOWN, Mifflin, PA

Built 2001 Load: 77.1 t ADT: 11,906

MILLER AVE

Good

Over: SHENANGO RIVER TRIB

214002 1 BLK S OF OAKWOOD, Lawrence, PA

Built 2001 Load: 77.1 t ADT: 1,000

NORWOOD ROAD

Good

Over: LUDWIGS RUN

At Sterling Ln 3471-J7, Chester, PA

Built 2005 Load: 77.1 t ADT: 2,764

BRIDGE 2106

Good

Over: OVER UNNAMED TR.FOX RUN

FOX MINE RD.JACKSON TWP., Mercer, PA

Built 2006 Load: 77.1 t ADT: 444

T-521

Good

Over: SUGAR RUN

3.2 MI NE OF HUGHSVILLE, Lycoming, PA

Built 2008 Load: 77.1 t ADT: 100

T-524

Good

Over: BAILEY RUN

1.6 MI. E OF LUTHER MILLS, Bradford, PA

Built 1990 Load: 78.0 t ADT: 50

BRIDGE 3113 T-888

Good

Over: OVER SWAMP RUN

TIE LINE RD PINE TOWNSHIP, Mercer, PA

Built 1968 Load: 78.0 t ADT: 561

US TR 11 & 15 NBL

Good

Over: OVER PINE ST.

BORO OF SELINSGROVE, Snyder, PA

Built 1976 Load: 78.0 t ADT: 10,724

US TR 11 & 15 SBL

Good

Over: OVER PINE ST.

BORO OF SELINSGROVE, Snyder, PA

Built 1976 Load: 78.0 t ADT: 10,072

SR 0981

Good

Over: BARREN RUN

SOUTH HUNTINGTON TWP., Westmoreland, PA

Built 2002 Load: 78.0 t ADT: 1,514

SR 3003; BOOKS BR.

Good

Over: SHERMANS CREEK

1 MI. W. OF BLAIN, Perry, PA

Built 2004 Load: 78.0 t ADT: 41

BEATTY COUNTY ROAD

Good

Over: MONASTERY RUN

ST VINCENT DR INTERSECT, Westmoreland, PA

Built 2009 Load: 78.0 t ADT: 4,375

RINGTOWN MT. RD.

Good

Over: LICK RUN

1.25 MI E OF NUMIDIA, Columbia, PA

Built 1941 Load: 78.1 t ADT: 754

SR2007

Good

Over: MAHONING CREEK

BIG RUN NO.2, Jefferson, PA

Built 1993 Load: 78.9 t ADT: 81

T-435 FURNACE ROAD

Good

Over: MEETINGHOUSE CREEK

0.7 MILE WEST OF SR 896, Lancaster, PA

Built 1937 Load: 78.9 t ADT: 215

PA TURNPIKE(I-76)

Good

Over: LR37056 SR 3002;WB-102

WEST OF NEW BEAVER, Lawrence, PA

Built 2008 Load: 78.9 t ADT: 21,767

SR 3011

Good

Over: WAPWALLOPEN CREEK

HOLENBK TWP 1.5M E SR3012, Luzerne, PA

Built 1996 Load: 78.9 t ADT: 128

SR 6

Good

Over: OVER KELSEY CREEK

BORO OF WELLSBORO, Tioga, PA

Built 1938 Load: 78.9 t ADT: 9,918

SR 0487

Good

Over: OVER S.BR. ROARING CR.

KNOEBELS GROVE, Columbia, PA

Built 2003 Load: 78.9 t ADT: 4,568

SR 4014

Good

Over: MILL CREEK

1 MI.E. OF SPRINGFIELD, Bradford, PA

Built 1951 Load: 79.8 t ADT: 1,889

SR3019 LONESME RD

Good

Over: BRANCH LACKAWANNA RIVER

OLD FORGE BORO .4M N TR11, Lackawanna, PA

Built 1941 Load: 79.8 t ADT: 5,770

Showing 20,151-20,200 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.