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 4006

Fair

Over: Hemlock Creek

4 MI.WEST OF BUCKHORN, Columbia, PA

Built 1983 Load: 50.8 t ADT: 1,121

SR 27 WASHINGTON

Fair

Over: OVER LITTLE SUGAR CREEK

EAST MEAD TOWNSHIP, Crawford, PA

Built 1985 Load: 50.8 t ADT: 2,559

SR 77 MAIN STREET

Fair

Over: OVER OIL CREEK E BRANCH

SPARTANSBURG BOROUGH, Crawford, PA

Built 1934 Load: 50.8 t ADT: 2,650

SR 4013

Fair

Over: W.BRANCH RATTLING CREEK

2 MI S. LYKENS, Dauphin, PA

Built 1974 Load: 50.8 t ADT: 341

EARLYMILL RD. T431

Fair

Over: BOW CREEK

BOW CR/2.4S GRANTVILLE, Dauphin, PA

Built 1985 Load: 50.8 t ADT: 300

RUMMEL ROAD T-538

Fair

Over: POWELL CREEK

2000 FT SE OF SR 4013, Dauphin, PA

Built 1975 Load: 50.8 t ADT: 75

INTERSTATE 95(SB)

Fair

Over: AMTRAK

OVER AMTRAK 44A01, Delaware, PA

Built 1975 Load: 50.8 t ADT: 42,682

MID-COUNTY EXWY.NB

Fair

Over: TRIB.DARBY CREEK

.2MI.SE.LAWRENCE 26A09, Delaware, PA

Built 1989 Load: 50.8 t ADT: 38,639

MID-COUNTY EXWY.SB

Fair

Over: TRIB.DARBY CREEK

.2MI.SE LAWRENCE 26A09, Delaware, PA

Built 1989 Load: 50.8 t ADT: 38,465

SR 219-US 219

Fair

Over: ROCKY RUN

2 MI N WILCOX, Elk, PA

Built 1948 Load: 50.8 t ADT: 3,217

SR 79 SB

Fair

Over: OVER SR 90 EB/WB

MCKEAN TOWNSHIP, Erie, PA

Built 1994 Load: 50.8 t ADT: 9,850

SR 2022 TURNPIKE R

Fair

Over: OVER BEAVER CREEK

WAYNE TOWNSHIP, Erie, PA

Built 1963 Load: 50.8 t ADT: 117

SR 2001 GREENWOOD

Fair

Over: OVER MAPLE CREEK

BARNETT TOWNSHIP, Forest, PA

Built 1967 Load: 50.8 t ADT: 238

I-81;SR0081;T-490

Fair

Over: BR. OF CONOCOCHEAGUE CR.

0.25 ML. N. ROUTE 30, Franklin, PA

Built 1963 Load: 50.8 t ADT: 45,399

QUARRY RD

Fair

Over: FALLING SPRING CREEK

850 FT NORTH OF SR 2029, Franklin, PA

Built 1987 Load: 50.8 t ADT: 500

SR 1011

Fair

Over: TENMILE CREEK

MORGAN & JEFFERSON TWPS., Greene, PA

Built 1941 Load: 50.8 t ADT: 1,180

US 22 ALFARATA

Fair

Over: FRANKSTOWN BR. JUNIATA

0.7 MI. E. OF PA 453, Huntingdon, PA

Built 1941 Load: 50.8 t ADT: 9,482

SR 1011

Fair

Over: MURRAYS RUN

0.1MI. E. OF CENTER UNION, Huntingdon, PA

Built 1938 Load: 50.8 t ADT: 33

SR0056

Fair

Over: BLACKLICK CR & CONRAIL

BUENA VISTA, Indiana, PA

Built 1988 Load: 50.8 t ADT: 4,601

SR0259

Fair

Over: BLACKLICK CREEK

HESHBON, Indiana, PA

Built 1941 Load: 50.8 t ADT: 726

SR3009

Fair

Over: BLACKLICK CREEK

NEWPORT RD NO.1, Indiana, PA

Built 1951 Load: 50.8 t ADT: 823

SR 1041 OLD RTE 6

Fair

Over: LACKAWANNA RIVER

CARBONDALE CTY .3M E 6006, Lackawanna, PA

Built 1963 Load: 50.8 t ADT: 1,720

US 11

Fair

Over: SR 3029 7TH AVENUE

CTY SCRANTON OVER 7TH AVE, Lackawanna, PA

Built 1994 Load: 50.8 t ADT: 20,577

PA TPK (I-476)

Fair

Over: SR 0011 LR 5

MOOSIC BOROUGH, Lackawanna, PA

Built 1955 Load: 50.8 t ADT: 6,575

722 Newport Road

Fair

Over: MILL CREEK

S on 772 from 23, Lancaster, PA

Built 1962 Load: 50.8 t ADT: 3,083

LR148 SR0272;PA272

Fair

Over: PA TPK (I-76)

EAST COCALICO TWP, Lancaster, PA

Built 1949 Load: 50.8 t ADT: 15,111

PORTERSVILLE RD

Fair

Over: SLIPPERY ROCK CREEK

@ INTERSECTION W/ SR 2005, Lawrence, PA

Built 1991 Load: 50.8 t ADT: 3,355

US 322; SR 0322

Fair

Over: GINGRICH RUN

1MI W OF FONTANA, Lebanon, PA

Built 1950 Load: 50.8 t ADT: 12,455

PA443;Moonshine Rd

Fair

Over: Trout Run/Appalachian Tr

2 MI. N. OF LICKDALE, Lebanon, PA

Built 1993 Load: 50.8 t ADT: 3,136

SR 4006 LR 39041

Fair

Over: PA TPK (I-476)

6 MI NORTH OF ALLENTOWN, Lehigh, PA

Built 1955 Load: 50.8 t ADT: 2,626

SR 0081 I-81

Fair

Over: MILL CREEK

PLAINS TWP .3 M N SR 2020, Luzerne, PA

Built 1963 Load: 50.8 t ADT: 52,602

PA TPK (RAMP AB)

Fair

Over: PA TPK (I-476)

WILKES-BARRE INTERCHANGE, Luzerne, PA

Built 1957 Load: 50.8 t ADT: 4,769

I-180 EBL (RAMP D)

Fair

Over: MILLERS RUN & T480 ROAD

.5 M E WMSPT CITY LINE, Lycoming, PA

Built 1982 Load: 50.8 t ADT: 15,435

I 180 EB

Fair

Over: E.B. OVER S.R. 405

1 MI E OF MUNCY, Lycoming, PA

Built 1973 Load: 50.8 t ADT: 6,794

SR 414

Fair

Over: OVER CEDAR RUN

VILLAGE OF CEDAR RUN, Lycoming, PA

Built 1986 Load: 50.8 t ADT: 277

US 15

Fair

Over: OVER SR 3026

3.5 MI.N.OF WILLIAMSPORT, Lycoming, PA

Built 1993 Load: 50.8 t ADT: 8,196

US 15

Fair

Over: OVER SR 3026

3.5 MI.N.OF WILLIAMSPORT, Lycoming, PA

Built 1993 Load: 50.8 t ADT: 9,450

SR 46-PA 46

Fair

Over: COLE CREEK

FARMERS VALLEY, McKean, PA

Built 1958 Load: 50.8 t ADT: 2,434

SR 358 HADLEY ROAD

Fair

Over: OVER SHENANGO RIVER BR

OTTER CREEK TOWNSHIP, Mercer, PA

Built 1953 Load: 50.8 t ADT: 3,344

SR 4017 WERNER RD

Fair

Over: OVER LITTLE SHENANGO R

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1963 Load: 50.8 t ADT: 1,428

SCHUYLKILL EXPWAY.

Fair

Over: BELMONT AVENUE

BELMONT AVE INTER. 36G12, Montgomery, PA

Built 1952 Load: 50.8 t ADT: 123,458

RAMP C & RAMP D OF

Fair

Over: MOOREHEAD AVENUE

W.CONSHOHOCKEN 3367K10, Montgomery, PA

Built 1951 Load: 50.8 t ADT: 8,461

I-80 WBL

Fair

Over: SR 54 & INDIAN CREEK

DANVILLE INTERCHANGE, Montour, PA

Built 1963 Load: 50.8 t ADT: 13,961

WALNUT STREET

Fair

Over: SAUCON CREEK

0.2 M. WEST OF PA 412, Northampton, PA

Built 1970 Load: 50.8 t ADT: 1,000

SR 4013

Fair

Over: OVER PLUM CREEK

3 MI SW OF STONINGTON, Northumberland, PA

Built 1939 Load: 50.8 t ADT: 1,313

T766 (CO.BR.#30)

Fair

Over: SHAMOKIN CREEK

T-766 (Poppy Road), Northumberland, PA

Built 1935 Load: 50.8 t ADT: 100

SR 144-PA 144

Fair

Over: CROSS FORK CREEK

CROSS FORK, Potter, PA

Built 1962 Load: 50.8 t ADT: 199

SR 144-PA 144

Fair

Over: KETTLE CREEK

3 MI NE CROSS FORK, Potter, PA

Built 1960 Load: 50.8 t ADT: 199

TWELVE MILE ROAD

Fair

Over: L BR YOUNG WOMANS CK

6 MI SOUTH OF SR 44, Potter, PA

Built 2002 Load: 50.8 t ADT: 15

NELSON RUN RD

Fair

Over: BIG NELSON RUN

1 MI NE OF SR 872, Potter, PA

Built 1935 Load: 50.8 t ADT: 20

Showing 10,701-10,750 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.