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

P-TOWN X-WAY (WB)

Fair

Over: ROYERSFORD ROAD

N ROYERSFORD 3140F09, Montgomery, PA

Built 1976 Load: 27.2 t ADT: 25,179

MID-COUNTY EXWY.SB

Fair

Over: MONTGOMERY AVENUE

L. MERION 35A06 (3477-F2, Montgomery, PA

Built 1974 Load: 27.2 t ADT: 41,310

MID-COUNTY EXWY.SB

Fair

Over: BROOK ROAD

PLYMOUTH TOWNSHIP 3368A07, Montgomery, PA

Built 1974 Load: 27.2 t ADT: 54,564

TOWNSHIP LINE ROAD

Fair

Over: MINGO CREEK

LIMERICK SQ 3140G9, Montgomery, PA

Built 1976 Load: 27.2 t ADT: 15,785

ARMAND HAMMER BLVD

Fair

Over: NORFOLK SOUTHERN RR

E POTTSTOWN 3139B03, Montgomery, PA

Built 1942 Load: 27.2 t ADT: 16,320

SR 2006(LR 48006)

Fair

Over: EAST BRANCH SAUCON CREEK

INT.W/RINGHOFFER RD., Northampton, PA

Built 1956 Load: 27.2 t ADT: 4,631

3005(LR48011SP)

Fair

Over: LEHIGH RIVER CANAL NOR S

BETHLEHEM-FREEMANSBURG, Northampton, PA

Built 1990 Load: 27.2 t ADT: 8,299

SR 642

Fair

Over: ROSS RUN

VILLAGE OF POTTSGROVE, Northumberland, PA

Built 1930 Load: 27.2 t ADT: 1,899

S.R 3005

Fair

Over: SCHWABEN CREEK

4.5 MI E OF HERNDON, Northumberland, PA

Built 1948 Load: 27.2 t ADT: 65

S.R. 4016

Fair

Over: OVER PLUM CREEK

1.5 MI SE OF HAMILTON, Northumberland, PA

Built 1939 Load: 27.2 t ADT: 871

6TH ST

Fair

Over: SHAMOKIN CREEK

CITY OF SHAMOKIN, Northumberland, PA

Built 1891 Load: 27.2 t ADT: 5,850

US 11&15; SR 0011

Fair

Over: FISHER STREET (RAMP)

NEAR DUNCANNON BORO, Perry, PA

Built 1959 Load: 27.2 t ADT: 8,474

17; SR 0017

Fair

Over: JUNIATA.RVER SR4006NSRC

MILLERSTOWN, Perry, PA

Built 1968 Load: 27.2 t ADT: 1,481

SR 872-PA 872

Fair

Over: NELSON RUN

2 MI N WHARTON, Potter, PA

Built 1970 Load: 27.2 t ADT: 455

ON AVENUE A

Fair

Over: ALLEGHENY RIVER

COUDERSPORT BORO, Potter, PA

Built 1959 Load: 27.2 t ADT: 672

PA 25

Fair

Over: PINE CREEK

SPRING GLEN, Schuylkill, PA

Built 1922 Load: 27.2 t ADT: 3,069

I-81 SB (LR 1005)

Fair

Over: SR 1006 (LR 53037)

1 MI. S. OF EXIT 131 (37), Schuylkill, PA

Built 1967 Load: 27.2 t ADT: 10,874

SR 1005 (LR 53046)

Fair

Over: TOMHICKEN CREEK

AT EAGLE ROCK, Schuylkill, PA

Built 1934 Load: 27.2 t ADT: 742

SR 2009 (LR 53007)

Fair

Over: LONG RUN

SOUTH BERNE STREET, Schuylkill, PA

Built 1966 Load: 27.2 t ADT: 2,622

SR 2011(LR 53075)

Fair

Over: PLUM CREEK

MEADOW DRIVE, Schuylkill, PA

Built 1940 Load: 27.2 t ADT: 485

T-455 FOOSE LANE

Fair

Over: CATAWISSA CREEK

0.2M N. OF SR 924, Schuylkill, PA

Built 1921 Load: 27.2 t ADT: 50

T-450 DEEP CREEK R

Fair

Over: DEEP CREEK

0.5 MI NORTH OF SR 25, Schuylkill, PA

Built 1990 Load: 27.2 t ADT: 200

SR 522

Fair

Over: TRIB MIDDLE CREEK

11 MI W OF MIDDLEBURG, Snyder, PA

Built 1928 Load: 27.2 t ADT: 5,271

SR 522

Fair

Over: TRIBUTARY MIDDLE CREEK

BEAVERTOWN BORO, Snyder, PA

Built 1929 Load: 27.2 t ADT: 6,025

SR 2003

Fair

Over: T TO MAHANTANGO CREEK

3MI E OF MT.PLEASANT MILL, Snyder, PA

Built 1949 Load: 27.2 t ADT: 203

SR 2013

Fair

Over: TRIB SUSQUEHANNA RIVER

0.25 MI N.OF INDEPENDENCE, Snyder, PA

Built 1922 Load: 27.2 t ADT: 133

GAME LANDS RD

Fair

Over: NORTH BRANCH MIDDLE CRK

3 MI E.OF BEAVERTOWN BORO, Snyder, PA

Built 1940 Load: 27.2 t ADT: 356

US 219 NBL

Fair

Over: PA 601

OVER PA 601, Somerset, PA

Built 1969 Load: 27.2 t ADT: 5,776

US 219 SBL

Fair

Over: PA 601

OVER PA 601, Somerset, PA

Built 1969 Load: 27.2 t ADT: 5,704

SR 2017

Fair

Over: WHEELER RUN

MANCE, Somerset, PA

Built 1937 Load: 27.2 t ADT: 61

T811 SUHRIE HOL RD

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

3.5 MI.SW.NEW BALTIMORE, Somerset, PA

Built 1973 Load: 27.2 t ADT: 25

SR 0087

Fair

Over: OVER LOYALSOCK CR.

1 MI N OF HILLSGROVE, Sullivan, PA

Built 1941 Load: 27.2 t ADT: 602

SR 4020

Fair

Over: UNT to Lick Run

1.25 MI NE OF COVEYTOWN, Sullivan, PA

Built 1949 Load: 27.2 t ADT: 50

T-842 (AIRPORT RD)

Fair

Over: SALT LICK CREEK

.5 MILES SE OF HALLSTEAD, Susquehanna, PA

Built 1990 Load: 27.2 t ADT: 75

PARK HILL RD

Fair

Over: SR 15

0.5 MI E OF TIOGA BORO, Tioga, PA

Built 1974 Load: 27.2 t ADT: 87

SR 249

Fair

Over: OVER TR. CROOKED CREEK

.75 MI W OF LITTLE MARSH, Tioga, PA

Built 1934 Load: 27.2 t ADT: 1,186

SR 1005

Fair

Over: MILL CREEK

ROSEVILLE BORO, Tioga, PA

Built 1924 Load: 27.2 t ADT: 133

SR 2016

Fair

Over: OVER BELLMAN RUN

0.25 MI S OF BLOSSBURG, Tioga, PA

Built 1942 Load: 27.2 t ADT: 976

T-450

Fair

Over: ELK RUN

0.7 MI S OF WATROUS, Tioga, PA

Built 1963 Load: 27.2 t ADT: 40

T-590

Fair

Over: NORTH RUN

1.8 MI. NW OF HOLLIDAY, Tioga, PA

Built 1982 Load: 27.2 t ADT: 50

T-684

Fair

Over: NORTH RUN

0.25 MI N OF HOLLIDAY, Tioga, PA

Built 1974 Load: 27.2 t ADT: 220

WESTFIELD TWP T370

Fair

Over: MILL CREEK

1.5 MI SE OF WESTFIELD, Tioga, PA

Built 1983 Load: 27.2 t ADT: 50

SR 3006

Fair

Over: OVER COLD RUN

1 MI S.OF HARTLETON, Union, PA

Built 1945 Load: 27.2 t ADT: 111

T-685 SUGAR CK.DR.

Fair

Over: OVER SUGAR CREEK

SUGARCREEK BOROUGH, Venango, PA

Built 1980 Load: 27.2 t ADT: 500

SR 6006 GLADE BRG.

Fair

Over: OVER ALLEGHENY RIVER

MEAD TOWNSHIP, Warren, PA

Built 1987 Load: 27.2 t ADT: 8,729

SR 0070

Fair

Over: SR 0231

CLAYSVILLE BOROUGH, Washington, PA

Built 1960 Load: 27.2 t ADT: 14,819

TOWNSHIP ROAD 472

Fair

Over: SR 0070

BUFFALO TOWNSHIP, Washington, PA

Built 1960 Load: 27.2 t ADT: 94

SR 0331

Fair

Over: DUNKLE RUN

INDEPENDENCE & HOPEWELL T, Washington, PA

Built 1946 Load: 27.2 t ADT: 164

SR 2023

Fair

Over: PIGEON CREEK

CARROLL TOWNSHIP, Washington, PA

Built 1984 Load: 27.2 t ADT: 651

SR 2027

Fair

Over: MAPLE CREEK

SPEERS BOROUGH, Washington, PA

Built 1967 Load: 27.2 t ADT: 4,375

Showing 2,101-2,150 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.