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

FR 137

Fair

Over: N. BR. SUGAR RUN

4.5 MILES N OF SR 321, McKean, PA

Built 1984 Load: 21.7 t ADT: 5

US 30; YORK RD.

Fair

Over: US 15; SR 0015

E OF GETTYSBURG, Adams, PA

Built 1963 Load: 21.8 t ADT: 16,182

PA 234; SR 0234

Fair

Over: MARKLE RUN

1MI NE OF HAMPTON, Adams, PA

Built 1930 Load: 21.8 t ADT: 6,406

SR 0022 SH

Fair

Over: POTATO GARDEN RD.

761E.OF WASH.CO.LINE, Allegheny, PA

Built 1964 Load: 21.8 t ADT: 21,157

SR 0065 NB

Fair

Over: SR 65 SB VARIOUS ST ALLY

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 21.8 t ADT: 19,740

SR 0065 SB

Fair

Over: REEDSDALE N.SHORE ALL.RV

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 21.8 t ADT: 19,641

I-376

Fair

Over: CSX RR SWINEBURN FRAZIER

Frazier Street Bridge, Allegheny, PA

Built 1951 Load: 21.8 t ADT: 74,684

NEW YORK AVE

Fair

Over: NORFOLKSOUTH RR

1500 E. OF ROCH-MONA.BR., Beaver, PA

Built 1970 Load: 21.8 t ADT: 627

Pennsylvania Ave

Fair

Over: MCKINLEY RUN

004054 100 S/MCKINLY INT, Beaver, PA

Built 1905 Load: 21.8 t ADT: 520

T314 Barnes Road

Fair

Over: CROOKED RUN

1 MI.S.OF INGLESMITH, Bedford, PA

Built 1989 Load: 21.8 t ADT: 11

PA 143(LR 06125)

Fair

Over: MOSELEM CREEK

HARD HILL RD. (PA.143), Berks, PA

Built 1961 Load: 21.8 t ADT: 1,612

SR 1030 (LR 06095)

Fair

Over: W.BRANCH PERKIOMEN CREEK

FORGEDALE RD., Berks, PA

Built 1965 Load: 21.8 t ADT: 437

US 222 BUS

Fair

Over: NORFOLK SOUTHERN RR

AT 61/222 BUS. SPLIT, Berks, PA

Built 1936 Load: 21.8 t ADT: 12,771

EB 422BUS.(LR 146)

Fair

Over: SR 422(LR 793)W.B.

INT WITH US 422 BYPASS, Berks, PA

Built 1962 Load: 21.8 t ADT: 8,304

SR 3009 (LR 06075)

Fair

Over: WYOMISSING CREEK

WYOMISSING AVE.@ MOHNTON, Berks, PA

Built 1928 Load: 21.8 t ADT: 8,219

PALM RD

Fair

Over: SPRING CREEK

N. OF PENN AVE 2907B05, Berks, PA

Built 1973 Load: 21.8 t ADT: 101

MAIN STREET

Fair

Over: HOSPITAL CREEK

WERNERSVILLE SH MAIN ST, Berks, PA

Built 1913 Load: 21.8 t ADT: 250

T516 MCCOY ST

Fair

Over: I-99 / US 220

.5 MI.N.OF TYRONE BORO., Blair, PA

Built 1974 Load: 21.8 t ADT: 71

SR 4010

Fair

Over: SUGAR CREEK

0.5 MI W.0F COLUMBIA X-RD, Bradford, PA

Built 1951 Load: 21.8 t ADT: 559

T-881 (CTY BR #40)

Fair

Over: WAPPASENING CREEK

2.1 MI W. OF WINDHAM, Bradford, PA

Built 1910 Load: 21.8 t ADT: 75

INTERSTATE 95 (NB)

Fair

Over: NESHAMINY CR & SR 2027

CROYDON 42E10, Bucks, PA

Built 1964 Load: 21.8 t ADT: 41,690

INTERSTATE 95 (SB)

Fair

Over: NESHAMINY CR & APPL 276

CROYDON 42E10, Bucks, PA

Built 1964 Load: 21.8 t ADT: 41,939

KEELEY AVENUE

Fair

Over: PINE RUN

2500FT N PA202 ADC3033-K2, Bucks, PA

Built 1906 Load: 21.8 t ADT: 1,000

BYERS ROAD

Fair

Over: BEAVER CREEK

1.7 MI W SR611 2584-J10, Bucks, PA

Built 1912 Load: 21.8 t ADT: 100

PA TPK (I-276)

Fair

Over: SR2043 LR09007

NEAR TREVOSE, Bucks, PA

Built 1954 Load: 21.8 t ADT: 85,801

PA 160

Fair

Over: S FORK BR LITTLE CONEMAU

0.1 MILE NORTH OF TR 756W, Cambria, PA

Built 1962 Load: 21.8 t ADT: 4,232

BRIDGE STREET

Fair

Over: LITTLE PAINT CREEK

SCALP LEVEL BORO., Cambria, PA

Built 1979 Load: 21.8 t ADT: 164

SR 80-I 80

Fair

Over: SR 26-PA 26

EXIT 161 BELLEFONTE INTER, Centre, PA

Built 1967 Load: 21.8 t ADT: 11,358

SR 144-PA 144

Fair

Over: BALD EAGLE CREEK

MILESBURG BORO, Centre, PA

Built 1930 Load: 21.8 t ADT: 7,943

EXTON BYPASS (WB)

Fair

Over: RTE US 30 BUSINESS

E. DOWNINGTOWN 21A13, Chester, PA

Built 1995 Load: 21.8 t ADT: 29,961

NORTH CHATHAM ROAD

Fair

Over: DOE RUN

SPRINGDELL 37J06(3689H05), Chester, PA

Built 1932 Load: 21.8 t ADT: 581

BOOT ROAD

Fair

Over: VALLEY CREEK

SE DOWNINGTOWN 31B2, Chester, PA

Built 1964 Load: 21.8 t ADT: 7,744

LEBOUTILLIER ROAD

Fair

Over: VALLEY CREEK

.25MI.W.MILL RD. 3365-C10, Chester, PA

Built 1940 Load: 21.8 t ADT: 150

SR2007

Fair

Over: PINEY CREEK

PINEY NO.1, Clarion, PA

Built 1987 Load: 21.8 t ADT: 533

SR 80-I 80

Fair

Over: SR 255/BUFFALO & PITT

EXIT 101 PENFIELD INTER, Clearfield, PA

Built 1967 Load: 21.8 t ADT: 9,264

SR 80-I 80

Fair

Over: SR 255/BUFFALO & PITT

EXIT 101 PENFIELD INTER, Clearfield, PA

Built 1967 Load: 21.8 t ADT: 9,325

SR 879-PA 879

Fair

Over: TOWNSHIP ROAD 991

CLEARFIELD, Clearfield, PA

Built 1975 Load: 21.8 t ADT: 8,962

SR 879-PA 879

Fair

Over: SR 322-US 322

CLEARFIELD, Clearfield, PA

Built 1974 Load: 21.8 t ADT: 11,827

T-928 DUNCAN ROAD

Fair

Over: OVER PINE CREEK

2 MI.E.TITUSVILLE ON T928, Crawford, PA

Built 1910 Load: 21.8 t ADT: 250

T-878 SWAMP ROAD

Fair

Over: OVER MUDDY CREEK

5MI.E.S.E. CAMBRIDGE SP., Crawford, PA

Built 1980 Load: 21.8 t ADT: 500

T-847 (TOBIN ROAD)

Fair

Over: OVER BOLES RUN

.5 MI S SR 1006, Crawford, PA

Built 1972 Load: 21.8 t ADT: 250

DEPOT ROAD

Fair

Over: OVER CONNEAUT CREEK

CONNEAUTVILLE BOROUGH, Crawford, PA

Built 1889 Load: 21.8 t ADT: 250

I-81 SB; SR 0081

Fair

Over: CONODOGUINET CREEK

1.5 MI.E. OF LR 21012, Cumberland, PA

Built 1969 Load: 21.8 t ADT: 28,424

T-526

Fair

Over: I-81; SR 0081

1 MI. W. OF MANADA, Dauphin, PA

Built 1967 Load: 21.8 t ADT: 724

TWP ROAD 323

Fair

Over: PA 283; SR 0300

2 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 Load: 21.8 t ADT: 259

OAKDALE ST RD T585

Fair

Over: WICONISCO CREEK

.5S LOYALTON/WICONISCO, Dauphin, PA

Built 1973 Load: 21.8 t ADT: 50

RAMP B-B;SR 8001

Fair

Over: SUSQUEHANNA RIVER

N.END WADE BRIDGE, Dauphin, PA

Built 1972 Load: 21.8 t ADT: 2,466

SR 4007

Fair

Over: W BRANCH CLARION RIVER

JOHNSONBURG BORO, Elk, PA

Built 1974 Load: 21.8 t ADT: 2,344

SR 8 WATERFORD RD

Fair

Over: OVER HUBBEL RUN

AMITY TOWNSHIP, Erie, PA

Built 1924 Load: 21.8 t ADT: 3,482

SR 4010 HERSHEY RD

Fair

Over: OVER SR 79 NB/SB

SUMMIT TOWNSHIP, Erie, PA

Built 1965 Load: 21.8 t ADT: 3,449

Showing 851-900 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.