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 4067 LR02126

Fair

Over: PA TPK (I-76)

WEST OF BUTLER VAL INTG, Allegheny, PA

Built 1952 Load: 47.2 t ADT: 6,699

CAMPBELLS RUN RD

Fair

Over: CAMPBELLS RUN

CM01 .5 MI S/BALDWIN RD, Allegheny, PA

Built 1938 Load: 47.2 t ADT: 5,401

EADS ST

Fair

Over: BRANCH OF BECKS RUN CRK

027 Eads St Bridge, Allegheny, PA

Built 1952 Load: 47.2 t ADT: 50

BOWER HILL RD

Fair

Over: MCLAUGHLIN RUN

ML01 MCLAUGHLIN RUN #1, Allegheny, PA

Built 1941 Load: 47.2 t ADT: 17,000

RAMP B

Fair

Over: SR 0028 SB

SB RAMP TO HIGHLAND PK.BR, Allegheny, PA

Built 1960 Load: 47.2 t ADT: 6,460

RAMP D

Fair

Over: RAMP C

West End Bridge, Allegheny, PA

Built 1991 Load: 47.2 t ADT: 1,654

BEDFORD AVE

Fair

Over: RAMPS C and k

BEDFORD AVE.O/228 1026, Allegheny, PA

Built 1962 Load: 47.2 t ADT: 938

RAMP G

Fair

Over: MADISON NORFOLKSOUTH RR

Veterans Bridge, Allegheny, PA

Built 1988 Load: 47.2 t ADT: 9,921

SR0422

Fair

Over: CHERRY RUN

WHITESBURG NO.2, Armstrong, PA

Built 1929 Load: 47.2 t ADT: 7,239

SR1033

Fair

Over: COWANSHANNOCK CREEK

RAYBURN TWP-N KITTANNING, Armstrong, PA

Built 1990 Load: 47.2 t ADT: 936

T-576 SLOAN ROAD

Fair

Over: BUFFALO & PITT RR

2 MILES WEST OF SR28/66, Armstrong, PA

Built 1986 Load: 47.2 t ADT: 200

GYPSY GLEN RD

Fair

Over: TWO MILE RUN

NEAR TWO MILE RUN PARK, Beaver, PA

Built 1948 Load: 47.2 t ADT: 434

TWP RT819 RIDGE RD

Fair

Over: RACCOON CREEK

004033 N/RT 151 &BOCKTOWN, Beaver, PA

Built 1916 Load: 47.2 t ADT: 50

SR 1009

Fair

Over: YELLOW CREEK

0.1 MI. S. OF SR 26, Bedford, PA

Built 1954 Load: 47.2 t ADT: 324

SR 1027

Fair

Over: BEAVER CREEK

.3 MI.N.OF SALEMVILLE, Bedford, PA

Built 1929 Load: 47.2 t ADT: 266

T-323 BLUES GAP RD

Fair

Over: TOWN CREEK

3 MI.S.OF CHANEYSVILLE, Bedford, PA

Built 1990 Load: 47.2 t ADT: 31

MOUNTAIN RD

Fair

Over: TRIB TO PINE CREEK

.2 MI NORTH OF T-910, Berks, PA

Built 1933 Load: 47.2 t ADT: 110

T-592 14TH AVENUE

Fair

Over: MILL RUN

2 MI.W.OF ALTOONA, Blair, PA

Built 1995 Load: 47.2 t ADT: 203

31ST STREET

Fair

Over: MILL RUN CREEK

31ST.STREET ALTOONA, Blair, PA

Built 1995 Load: 47.2 t ADT: 5,432

SR 0187

Fair

Over: TRIB WAPPASENING CREEK

.5 MI. N. OF WINDHAM CTR., Bradford, PA

Built 1948 Load: 47.2 t ADT: 1,635

SR 2014

Fair

Over: DURELL CREEK

1 MI EAST OF DURELL, Bradford, PA

Built 1954 Load: 47.2 t ADT: 91

SR 4015

Fair

Over: TRIB TO MILL CREEK

VILLAGE OF WETONA, Bradford, PA

Built 1900 Load: 47.2 t ADT: 156

OLD LINCOLN HIGHWY

Fair

Over: MILL CREEK

FAIRLESS JUNCTION 37E10, Bucks, PA

Built 1972 Load: 47.2 t ADT: 16,709

ELEPHANT ROAD

Fair

Over: BRANCH OF DEEP RUN

JUST SE OF TR 113 15K10, Bucks, PA

Built 1989 Load: 47.2 t ADT: 3,002

NORTH 9TH STREET

Fair

Over: BRANCH OF TOHICKON CREEK

0.1MI N OF SR0313 13K01, Bucks, PA

Built 1979 Load: 47.2 t ADT: 655

CONNECT PA32&NJ12

Fair

Over: DELAWARE River

UHLERTOWN PA, Bucks, PA

Built 1931 Load: 47.2 t ADT: 4,400

LR 362 SR 0232

Fair

Over: PA TPK (I-276)

NEAR SOUTHAMPTON, Bucks, PA

Built 1954 Load: 47.2 t ADT: 14,734

T-664 MORROW ROAD

Fair

Over: BUFFALO CREEK

BTW T596 & T653, Butler, PA

Built 1993 Load: 47.2 t ADT: 50

T-387 FORRESTER RD

Fair

Over: WOLF CREEK

0.85 MI W OF INT W/ SR173, Butler, PA

Built 1989 Load: 47.2 t ADT: 50

MAPLE STREET

Fair

Over: S.FORK LITTLE CONEMAUGH

SOUTH FORK MAPLE STREET, Cambria, PA

Built 1989 Load: 47.2 t ADT: 500

ON TSR 948

Fair

Over: LICK RUN

HOWARD, Centre, PA

Built 1935 Load: 47.2 t ADT: 166

ON TSR 958

Fair

Over: BLACK BEAR RUN

1 MI S WINBURNE, Centre, PA

Built 1924 Load: 47.2 t ADT: 237

T-465 KLINE ROAD

Fair

Over: PENNS CREEK

50 NORTH OF SR 2012 INT, Centre, PA

Built 1995 Load: 47.2 t ADT: 50

WEST CHESTER PIKE

Fair

Over: RIDLEY CREEK

E.OF JCT.PA 926 33J9, Chester, PA

Built 1960 Load: 47.2 t ADT: 28,722

EXTON BYPASS(WB)

Fair

Over: SHIP ROAD

1.25 E.RTE 100 22A12, Chester, PA

Built 1994 Load: 47.2 t ADT: 21,142

TRAFFIC ROUTE 202

Fair

Over: GREEN HILL ROAD

NEAR WEST CHESTER 32D03, Chester, PA

Built 1968 Load: 47.2 t ADT: 24,972

SPRING DELL ROAD

Fair

Over: DOE RUN

NR.TRAFFIC RTE.841 37H06, Chester, PA

Built 1966 Load: 47.2 t ADT: 1,371

BALTIMORE PIKE

Fair

Over: US 1 BY-PASS

EAST KENNETT SQ. 47H03, Chester, PA

Built 1965 Load: 47.2 t ADT: 7,767

SOUTH BIRDELL ROAD

Fair

Over: WEST BR BRANDYWINE CREEK

VILLAGE OF BIRDELL 18D2, Chester, PA

Built 1998 Load: 47.2 t ADT: 1,630

WESTTOWN WAY

Fair

Over: EAST BRANCH CHESTER CRK.

0.4 MI S SR 3 3584-C7, Chester, PA

Built 1916 Load: 47.2 t ADT: 2,300

SR0080 EB

Fair

Over: T-310 METZ RD

METZ ROAD EB, Clarion, PA

Built 1966 Load: 47.2 t ADT: 9,778

SR0080 EB

Fair

Over: SR0478 ST PETERSBURG RD

ST.PETERSBURG RD EB, Clarion, PA

Built 1966 Load: 47.2 t ADT: 9,778

SR 153-PA 153

Fair

Over: WILSON RUN

1 MI N PENFIELD, Clearfield, PA

Built 1958 Load: 47.2 t ADT: 2,467

SR 1009

Fair

Over: W BR SUSQUEHANNA RIVER

2 MI E LECONTES MILLS, Clearfield, PA

Built 1986 Load: 47.2 t ADT: 541

SR 4014

Fair

Over: LABORDE BRANCH SANDY CR

ROCKTON, Clearfield, PA

Built 1950 Load: 47.2 t ADT: 2,588

SR 80-I 80

Fair

Over: TSR 342 & FISHING CREEK

2 MI E EXIT 173, Clinton, PA

Built 1969 Load: 47.2 t ADT: 9,285

SR 220-US 220

Fair

Over: SR 1005

YOUNGDALE, Clinton, PA

Built 1976 Load: 47.2 t ADT: 7,913

SR 220-US 220

Fair

Over: SR 1005

YOUNGDALE, Clinton, PA

Built 1976 Load: 47.2 t ADT: 7,952

SR 0080

Fair

Over: OVER S.R. 2028

2 MI E OF MIFFLINVILLE, Columbia, PA

Built 1964 Load: 47.2 t ADT: 14,651

SR 2040 SPRING ST.

Fair

Over: OVER CUSSEWAGO CREEK

CITY OF MEADVILLE, Crawford, PA

Built 1990 Load: 47.2 t ADT: 4,166

Showing 9,951-10,000 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.