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

T-415 OLD ROUTE 68

Fair

Over: CONNOQUENESSING CR

1.1 MI SW OF SR 0068, Butler, PA

Built 2001 Load: 43.5 t ADT: 250

PA 56

Fair

Over: BECKLEY AVENUE

OVER BECKLEY AVE. J-TOWN, Cambria, PA

Built 1972 Load: 43.5 t ADT: 19,827

US 219 NBL

Fair

Over: US 422 & SR 1036

OVER TR 422, Cambria, PA

Built 1990 Load: 43.5 t ADT: 2,382

PA 271

Fair

Over: BROWNS RUN

1.1 MILE SOUTH OF TR 219, Cambria, PA

Built 1948 Load: 43.5 t ADT: 3,405

SR 2001

Fair

Over: LITTLE PAINT CREEK

ELTON, Cambria, PA

Built 1979 Load: 43.5 t ADT: 533

T-327

Fair

Over: HUNTS RUN

700 SE OF T306, Cameron, PA

Built 1910 Load: 43.5 t ADT: 75

SR0895 LR13001

Fair

Over: PA TPK (I-476)

BOWMANSTOWN, Carbon, PA

Built 1957 Load: 43.5 t ADT: 3,329

SR 45-PA 45

Fair

Over: ELK CREEK

MILLHEIM BORO, Centre, PA

Built 1961 Load: 43.5 t ADT: 3,223

SR 3040

Fair

Over: STEEL HOLLOW RUN

1 MI E MARTHA FURNACE, Centre, PA

Built 1925 Load: 43.5 t ADT: 2,220

SR 504-PA 504

Fair

Over: BUSH HOLLOW

PLUM GROVE, Centre, PA

Built 1910 Load: 43.5 t ADT: 3,806

SR 3011

Fair

Over: SPRING CREEK

HOUSERVILLE, Centre, PA

Built 1961 Load: 43.5 t ADT: 1,409

T-449 BEAVER DAM

Fair

Over: PENNS CREEK

255 E OF INT OF SR 2012, Centre, PA

Built 1991 Load: 43.5 t ADT: 50

CHESTERVILLE ROAD

Fair

Over: MIDDLE BR WHITE CLAY CRK

FRANKLIN TOWNSHIP 54B3, Chester, PA

Built 1991 Load: 43.5 t ADT: 706

FREEMONT RD.(T305)

Fair

Over: OCTORARO CREEK

W NOTTINGHAM 49K07, Chester, PA

Built 1979 Load: 43.5 t ADT: 457

MILL ROAD(T402)

Fair

Over: WEST BR RED CLAY CREEK

E.MARLBORO TWP. 47B03, Chester, PA

Built 1889 Load: 43.5 t ADT: 659

COOKS GLEN ROAD

Fair

Over: FRENCH CREEK

E.& W.VINCENT TWP. 06E13, Chester, PA

Built 1988 Load: 43.5 t ADT: 235

PA TPK (I-76)

Fair

Over: SR 4031

NORTH OF GLENMOORE, Chester, PA

Built 1950 Load: 43.5 t ADT: 46,178

BALDWIN DRIVE

Fair

Over: CHESTER CREEK TRIBUTARY

0.9 MI NW OF SR3 3584-B4, Chester, PA

Built 1977 Load: 43.5 t ADT: 220

ICEDALE ROAD

Fair

Over: WEST BR.BRANDYWINE CREEK

.3 Mi SW US-322 3359-H10, Chester, PA

Built 1930 Load: 43.5 t ADT: 480

STEELVILLE ROAD

Fair

Over: KNIGHT RUN

.9MI W.OF 41 3687-K6, Chester, PA

Built 1940 Load: 43.5 t ADT: 460

SR0080 WB

Fair

Over: BEAVER CREEK & ABAND RR

BEAVER CREEK WB, Clarion, PA

Built 1966 Load: 43.5 t ADT: 9,965

SR0322

Fair

Over: CLARION RIVER

WALLS MEM. BRIDGE, Clarion, PA

Built 1987 Load: 43.5 t ADT: 7,651

SR4001 EAST END RD

Fair

Over: SR0080 EB&WB

GROCE HILL, Clarion, PA

Built 1965 Load: 43.5 t ADT: 489

SR4013

Fair

Over: EAST SANDY CREEK

EAST SANDY, Clarion, PA

Built 1988 Load: 43.5 t ADT: 163

SR 219-US 219

Fair

Over: KRATZER RUN

GRAMPIAN, Clearfield, PA

Built 1926 Load: 43.5 t ADT: 1,884

SR 322-US 322

Fair

Over: ABANDONED RAILROAD

2 MI WEST ROCKTON, Clearfield, PA

Built 1956 Load: 43.5 t ADT: 1,902

ON TSR 887

Fair

Over: MOOSE CREEK

1/2 MI N CLEARFIELD, Clearfield, PA

Built 1955 Load: 43.5 t ADT: 3,208

SR 220-US 220

Fair

Over: SR 150-PA 150

1 MILE SOUTH AVIS, Clinton, PA

Built 1976 Load: 43.5 t ADT: 9,471

SR 477-PA 477

Fair

Over: SR 220-US 220

1 MILE SOUTH MILL HALL, Clinton, PA

Built 1976 Load: 43.5 t ADT: 2,519

SR 4020

Fair

Over: OVER GREEN CREEK

1 MI N OF ORANGEVILLE, Columbia, PA

Built 1961 Load: 43.5 t ADT: 506

SR 4024

Fair

Over: OVER LITTLE FISHING CR.

VILLAGE OF IOLA, Columbia, PA

Built 1941 Load: 43.5 t ADT: 522

SR 77 SPRING ST.

Fair

Over: OVER PATRICK RUN TRIB

SPARTA TOWNSHIP, Crawford, PA

Built 1989 Load: 43.5 t ADT: 1,847

SR 1010 LYONA ROAD

Fair

Over: OVER WOODCOCK CREEK

RICHMOND TOWNSHIP, Crawford, PA

Built 1954 Load: 43.5 t ADT: 1,662

I-81 NB; SR 0081

Fair

Over: PA 74;SR 0074

I-81 OVER PA 74, Cumberland, PA

Built 1962 Load: 43.5 t ADT: 23,728

I-81 SB; SR 0081

Fair

Over: PA-74; SR 0074

I-81 & PA 74 INTER, Cumberland, PA

Built 1962 Load: 43.5 t ADT: 22,909

SR 2035

Fair

Over: NORFOLK SO.

LEMOYNE BORO, Cumberland, PA

Built 1923 Load: 43.5 t ADT: 16,836

I-81 SB; SR 0081

Fair

Over: TWP RD 318; KOHN RD

1.5 MI.N. PROGRESS, Dauphin, PA

Built 1969 Load: 43.5 t ADT: 40,563

I-81 NB; SR 0081

Fair

Over: SR 2015

1 MI. E. SHELLSVILLE, Dauphin, PA

Built 1967 Load: 43.5 t ADT: 25,156

I-81 SB; SR 0081

Fair

Over: TWP RD 523

GRANTVILLE, Dauphin, PA

Built 1968 Load: 43.5 t ADT: 25,383

I-83; SR 0083

Fair

Over: TWP RD 392 PEIFFER LANE

S. OF UNION DEPOSIT, Dauphin, PA

Built 1994 Load: 43.5 t ADT: 80,822

US 209; SR 0209

Fair

Over: WICONISCO CREEK

LOYALTON, Dauphin, PA

Built 1991 Load: 43.5 t ADT: 8,008

SR 2022

Fair

Over: BOW CREEK

2.5 MI.N. HERSHEY, Dauphin, PA

Built 1989 Load: 43.5 t ADT: 510

SR 3009

Fair

Over: PAXTON CREEK

PAXTON ST HBG, Dauphin, PA

Built 1930 Load: 43.5 t ADT: 17,359

STATE FARM RD T318

Fair

Over: TRIB TO PAXTON CREEK

WITF STUDIO PAXTON CRK, Dauphin, PA

Built 1987 Load: 43.5 t ADT: 750

63RD STREET

Fair

Over: NORFOLK SOUTHERN

OFF DERRY ST/RUTHFRD YARD, Dauphin, PA

Built 1985 Load: 43.5 t ADT: 4,000

REITZ RD T-631

Fair

Over: LITTLE WICONISCO CREEK

REITZ FARM BRIDGE, Dauphin, PA

Built 1996 Load: 43.5 t ADT: 50

CHURCH LANE

Fair

Over: SEPTA FAIRVIEW RAILRD AV

CHURCH LANE 36B01, Delaware, PA

Built 1993 Load: 43.5 t ADT: 16,522

MID-COUNTY EXWY.NB

Fair

Over: CRUM CK;BLACK ROCK PARK

BLACK ROCK PARK 34H11, Delaware, PA

Built 1988 Load: 43.5 t ADT: 34,047

T-367 CARBURY ROAD

Fair

Over: CUSSEWAGO CREEK

1500 WEST OF SR 98, Erie, PA

Built 1945 Load: 43.5 t ADT: 69

SR 1029

Fair

Over: SR 0119

BULLSKIN TOWNSHIP, Fayette, PA

Built 1965 Load: 43.5 t ADT: 3,920

Showing 8,851-8,900 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.