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 2024

Good

Over: TOWANDA CREEK

.5 MILE EAST OF AIRPORT, Bradford, PA

Built 2005 Load: 58.1 t ADT: 1,468

SR 22-US 22

Good

Over: TWP 664

1 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2004 Load: 58.1 t ADT: 4,711

3008 Pine Grove Rd

Good

Over: TAGG RUN

TOLAND, Cumberland, PA

Built 2005 Load: 58.1 t ADT: 762

GREEN GARDEN ROAD

Good

Over: RACCOON CREEK

INT W/ TODD ROAD, Beaver, PA

Built 2006 Load: 58.1 t ADT: 9,312

T-889 SUNOL RD.

Good

Over: NORTH DEER CK.

_DEER CREEK TOWNSHIP, Mercer, PA

Built 2007 Load: 58.1 t ADT: 41

LEHNENBERG ROAD

Good

Over: RODGES RUN

LEHNENBRG;MINE RD 2469K9, Bucks, PA

Built 2007 Load: 58.1 t ADT: 132

FLINT HILL ROAD

Good

Over: PA TPK (I-276)

S. OF BRIDGEPORT 3367-F05, Montgomery, PA

Built 2007 Load: 58.1 t ADT: 1,979

KRISE VALLEY ROAD

Good

Over: POTTER RUN

100 FT WEST OF SR 322, Centre, PA

Built 2009 Load: 58.1 t ADT: 40

SR 1009

Good

Over: BRANCH OF STARRUCCA CRK

HARMONY TWP 3 M S SR 1011, Susquehanna, PA

Built 2009 Load: 58.1 t ADT: 138

SR 3007

Good

Over: WEST BRANCH STONY FORK

2 MI W OF DRAPER, Tioga, PA

Built 2009 Load: 58.1 t ADT: 395

BARNEY STREET

Good

Over: SOLOMON CREEK

ADJACENT TO BROOK STREET, Luzerne, PA

Built 2010 Load: 58.1 t ADT: 350

T-549 BUGBEE RD

Good

Over: CARPENTERS RUN

1.9 MI. N. OF PENNSDALE, Lycoming, PA

Built 2011 Load: 58.1 t ADT: 100

PA TPK (Toll 43)

Good

Over: S.R. 2048

West of West Brownsville, Washington, PA

Built 2009 Load: 58.1 t ADT: 1,376

CHURCH RD (T-500)

Good

Over: Trib. to Valley Creek

3364-G9 1M S. STJOHNS RD, Chester, PA

Built 2014 Load: 58.1 t ADT: 1,770

CAMPBELLS RUN RD

Good

Over: Campbells Run

CM06 .2 MI E/KEINERS LN, Allegheny, PA

Built 2022 Load: 58.1 t ADT: 6,125

U.S. 202 PARKWAY

Good

Over: TRIB. LITTLE NESHAMINY C

1/2 MI. N. PA-63 3145B04, Montgomery, PA

Built 2010 Load: 58.3 t ADT: 15,643

Park Road

Good

Over: Codorus Creek

1 MI. W. OF JEFFERSON, York, PA

Built 2016 Load: 58.3 t ADT: 97

SR 3002 MCGRAW RD.

Good

Over: TRIBUTARY TO PINE CREEK

SOUTHWEST TOWNSHIP, Warren, PA

Built 2019 Load: 58.3 t ADT: 493

SR 28 NB

Good

Over: SR.8 NB/SB N.MAIN RR SP.

@ ETNA INTERCHANGE, Allegheny, PA

Built 1960 Load: 59.0 t ADT: 37,917

RAMP H

Good

Over: N & S RAMP N

Veterans Bridge, Allegheny, PA

Built 1988 Load: 59.0 t ADT: 9,342

PA 96

Good

Over: KEGG RUN & SHAWNEE LAKE

1.4 MILE SOUTH OF TR 30, Bedford, PA

Built 1951 Load: 59.0 t ADT: 705

T654 CREEK ROAD

Good

Over: THOMPSON RUN

COOKS MILLS, Bedford, PA

Built 1954 Load: 59.0 t ADT: 291

SR 1013

Good

Over: SINKING RUN

1.25 MI.E.OF ARCH SPRING, Blair, PA

Built 1999 Load: 59.0 t ADT: 696

S.R.4018

Good

Over: FALL CREEK

0.5 MI E OF MIDDLETOWN, Bradford, PA

Built 1988 Load: 59.0 t ADT: 403

DAVISVILLE ROAD

Good

Over: SOUTHAMPTON CREEK

UPPER SOUTHAMPTON 35B09, Bucks, PA

Built 1996 Load: 59.0 t ADT: 1,800

ON TSR 863

Good

Over: ELK CREEK

SMULLTON, Centre, PA

Built 1990 Load: 59.0 t ADT: 396

SR 442

Good

Over: OVER LITTLE FISHING CR.

0.5 MILES N OF IOLA, Columbia, PA

Built 1990 Load: 59.0 t ADT: 1,683

T-650 HUSON RD.

Good

Over: OVER GRAVEL RUN

.2 MI.S.SR 1002 ON T-650, Crawford, PA

Built 1935 Load: 59.0 t ADT: 250

PA 443; SR 0443

Good

Over: FISHING CREEK

4.5 MI. N.E. FT. HUNTER, Dauphin, PA

Built 1995 Load: 59.0 t ADT: 1,556

PA 443; SR 0443

Good

Over: FISHING CREEK

5 MI. N.E. FT.HUNTER, Dauphin, PA

Built 1995 Load: 59.0 t ADT: 1,556

AMOSLAND ROAD

Good

Over: AMTRAK; PHILA-WASH

NORWOOD PARK 35F10, Delaware, PA

Built 1986 Load: 59.0 t ADT: 8,986

SR 3001 GRIFFEY RD

Good

Over: OVER ASHTUBULA CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 1962 Load: 59.0 t ADT: 479

SR 0655 (LR 323)

Good

Over: PA TPK (I-76)

NEAR HUSTONTOWN, Fulton, PA

Built 1939 Load: 59.0 t ADT: 365

T-988 SPORTSMAN RD

Good

Over: COCALICO CREEK

1 MI WEST OF SR 1053, Lancaster, PA

Built 1950 Load: 59.0 t ADT: 50

MULBERRY STREET

Good

Over: PEDESTRIAN TRAIL

400 FT SOUTH OF SR 4020, Lancaster, PA

Built 1907 Load: 59.0 t ADT: 105

EAST POLAND AV

Good

Over: HICKORY RUN

1/4 MI W OF N BEAVER LINE, Lawrence, PA

Built 1939 Load: 59.0 t ADT: 3,418

EAST MOUNTAIN AVE

Good

Over: HAGERMANS RUN

BORO OF S. WILLIAMSPORT, Lycoming, PA

Built 1972 Load: 59.0 t ADT: 650

SR1012 EAST LAKE R

Good

Over: SALT LICK CREEK

NEW MILF TP .2 M N TR 492, Susquehanna, PA

Built 1950 Load: 59.0 t ADT: 880

SR 287

Good

Over: OVER MORRIS BROOK

BORO OF WELLSBORO, Tioga, PA

Built 1983 Load: 59.0 t ADT: 2,444

SR 0015

Good

Over: TWP RD T-493

1 MI. S. OF MANSFIELD, Tioga, PA

Built 1986 Load: 59.0 t ADT: 5,697

SR 0590 TR 590

Good

Over: WALLENPAUPACK CREEK

SALEM TWP .4 M S TR 690, Wayne, PA

Built 1994 Load: 59.0 t ADT: 1,077

SR 0292 TR 292

Good

Over: BOWMANS CREEK

MONROE TWP 810 E TR 29, Wyoming, PA

Built 1996 Load: 59.0 t ADT: 625

SR 973

Good

Over: LARRYS CREEK

0.25 MI S OF SALLADASBURG, Lycoming, PA

Built 1997 Load: 59.0 t ADT: 180

S.R. 442

Good

Over: OVER LITTLE MUNCY CREEK

2.3 MI. E OF CLARKSTOWN, Lycoming, PA

Built 1997 Load: 59.0 t ADT: 3,289

SR 2008 UNION LBUF

Good

Over: OVER HORTON RUN

UNION TOWNSHIP, Erie, PA

Built 1999 Load: 59.0 t ADT: 632

RAMP J

Good

Over: SR 8042;RAMP K

RAMP J OVER RAMP K, Berks, PA

Built 1998 Load: 59.0 t ADT: 12,126

SR 4017

Good

Over: OVER LOSEY CREEK

2 MI NORTH OF KENNYVILLE, Tioga, PA

Built 1999 Load: 59.0 t ADT: 479

RAMP E SR 8151

Good

Over: RAMP C

.1 MILE S. LIBERTY TUNNEL, Allegheny, PA

Built 1999 Load: 59.0 t ADT: 8,545

SR 87

Good

Over: OVER SCOTCH RUN

2.5 MI E. OF COLLEY, Sullivan, PA

Built 2000 Load: 59.0 t ADT: 471

PA 655

Good

Over: JUNIATA RIVER

MAPLETON, Huntingdon, PA

Built 2001 Load: 59.0 t ADT: 2,216

Showing 19,701-19,750 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.