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

Heidlersburg Rd

Good

Over: Opossum Creek

2 MI NE OF BIGLERVILLE, Adams, PA

Built 2017 Load: 46.7 t ADT: 5,214

GRUBB ROAD

Good

Over: Walnut Creek

MILL CREEK TOWNSHIP, Erie, PA

Built 2018 Load: 46.7 t ADT: 5,597

HARTLEY HILL RD

Good

Over: DUNLAP CREEK

REDSTONE & LUZERNE TWPS., Fayette, PA

Built 2018 Load: 46.7 t ADT: 3,121

Main Street

Good

Over: Waltz Creek

@ INT. WITH T-604, Northampton, PA

Built 2017 Load: 46.7 t ADT: 1,651

CREEK RD

Good

Over: RACCOON CREEK

DONNALLYS MILLS, Perry, PA

Built 2017 Load: 46.7 t ADT: 569

PA 743; SR 0743

Good

Over: SPRING CREEK

HERSHEY, Dauphin, PA

Built 2017 Load: 46.7 t ADT: 8,898

Lardington Road

Good

Over: Bull Creek

350 N OF SR 1034, Allegheny, PA

Built 2019 Load: 46.7 t ADT: 569

SR 1016

Good

Over: NORFOLK SOUTHERN RR

NEW MILFORD B .2M W TR 11, Susquehanna, PA

Built 2020 Load: 46.7 t ADT: 299

MCCLELLAND RD

Good

Over: DEER CREEK

DE09 DEER CREEK NO. 9, Allegheny, PA

Built 1892 Load: 47.0 t ADT: 251

SR2012

Good

Over: LITTLE PINEY CREEK

MCGUIRE ROAD, Clarion, PA

Built 1961 Load: 47.0 t ADT: 76

SR 3015 (LR22045)

Good

Over: WICONISCO CK

GOLDMINE RD, Schuylkill, PA

Built 2013 Load: 47.0 t ADT: 1,649

SR 2024

Good

Over: PINE CREEK

SR2024 OVER PINE CK, Schuylkill, PA

Built 2014 Load: 47.0 t ADT: 2,899

Oak Forest Road

Good

Over: Bells Run

Wayne Township, Greene, PA

Built 2018 Load: 47.0 t ADT: 262

Bells Landing Rd

Good

Over: Bell Run

BELLS LANDING, Clearfield, PA

Built 2017 Load: 47.0 t ADT: 1,884

Locke Mills Rd

Good

Over: Honey Creek

LOCKE MILLS, Mifflin, PA

Built 2018 Load: 47.0 t ADT: 950

Carlisle Road

Good

Over: OPOSSUM CREEK

4 MI N OF BIGLERVILLE, Adams, PA

Built 2018 Load: 47.0 t ADT: 2,990

ON FREEDOM AVENUE

Good

Over: KISHACOQUILLAS CREEK

BURNHAM BORO, Mifflin, PA

Built 2019 Load: 47.0 t ADT: 11,573

MILL MOUNTAIN ROAD

Good

Over: Nescopeck Creek

ST. JOHNS EAST OF I-81, Luzerne, PA

Built 2020 Load: 47.0 t ADT: 300

US 15 NB; SR 0015

Good

Over: MIDDLE CREEK

1.25M N. MARYLAND LINE, Adams, PA

Built 1990 Load: 47.2 t ADT: 8,415

GIBSONIA RD

Good

Over: WEST BRANCH DEER CREEK

150 EAST OF SR 0008, Allegheny, PA

Built 1966 Load: 47.2 t ADT: 9,313

EWING ROAD

Good

Over: SR 0079 NB-SB

1/4 MI. N. CARN. I-79 INT, Allegheny, PA

Built 1972 Load: 47.2 t ADT: 2,428

BEATTY RD

Good

Over: THOMPSON RUN

TC05 THOMPSON CRK NO. 5, Allegheny, PA

Built 1987 Load: 47.2 t ADT: 6,472

RAMP D

Good

Over: KILBUCK RUN

@ INTERSECTION W/SR 4005, Allegheny, PA

Built 1969 Load: 47.2 t ADT: 3,715

SR2036

Good

Over: CROOKED CREEK

REARICKS FORDING, Armstrong, PA

Built 1992 Load: 47.2 t ADT: 146

HOENIG RD

Good

Over: BR.N.FORK BIG SEWICKLEY

0.5 MI.N.E.OF LR 04060, Beaver, PA

Built 1951 Load: 47.2 t ADT: 470

PA TPK (I-376)

Good

Over: SR 0551

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 47.2 t ADT: 9,871

PA 26

Good

Over: PINEY CREEK

0.1 MILE NORTH OF SR 2009, Bedford, PA

Built 1999 Load: 47.2 t ADT: 117

T354 Mountain Road

Good

Over: E BR SIDELING HILL CREEK

6.5 MI.SE.OF CLEARVILLE, Bedford, PA

Built 2003 Load: 47.2 t ADT: 17

SR 3010

Good

Over: TRIB POPLAR RUN

1.25 MI.W.OF PUZZLETOWN, Blair, PA

Built 1936 Load: 47.2 t ADT: 56

CONNECT PA32&NJ519

Good

Over: DELAWARE River

UPPER BLACK EDDY 05F04, Bucks, PA

Built 1933 Load: 47.2 t ADT: 3,600

PA 164

Good

Over: TROUT RUN

0.8 MILE SOUTH OF TR 53, Cambria, PA

Built 1947 Load: 47.2 t ADT: 6,431

SR 120-PA 120

Good

Over: BIG RUN

TRUMAN, Cameron, PA

Built 1991 Load: 47.2 t ADT: 2,666

SR 322-US 322

Good

Over: COLD STREAM

PHILIPSBURG, Centre, PA

Built 1992 Load: 47.2 t ADT: 13,028

BLACK GAP ROAD

Good

Over: WHITE DEER CREEK

2.5 MI NW OF SR 192, Centre, PA

Built 2005 Load: 47.2 t ADT: 20

SR 80-I 80

Good

Over: TWP RD 354

1 MI W EXIT 178, Clinton, PA

Built 1969 Load: 47.2 t ADT: 9,634

LT BR YOUNG W C RD

Good

Over: GREENLICK RUN

5 MI NORTH OF GLEASONTON, Clinton, PA

Built 1997 Load: 47.2 t ADT: 15

SR 0080

Good

Over: OVER S.R. 2028

2 MI E OF MIFFLINVILLE, Columbia, PA

Built 1964 Load: 47.2 t ADT: 14,038

SR 4018

Good

Over: SPRUCE RUN

2.0 MI SW MILLVILLE BORO, Columbia, PA

Built 1932 Load: 47.2 t ADT: 259

SR 4049

Good

Over: WEST BRANCH FISHING CRK

VILLAGE OF CENTRAL, Columbia, PA

Built 1996 Load: 47.2 t ADT: 242

SR 285 STEELES COR

Good

Over: OVER SWAMP

SADSBURY TOWNSHIP, Crawford, PA

Built 1960 Load: 47.2 t ADT: 2,243

SR 2029 HYDETOWN

Good

Over: OVER INDIAN RUN

HYDETOWN BOROUGH, Crawford, PA

Built 1994 Load: 47.2 t ADT: 423

I-81 NB; SR 0081

Good

Over: SR 3005 FIREHOUSE RD.

3.5 MI.N.SHIPPENSBURG, Cumberland, PA

Built 1963 Load: 47.2 t ADT: 19,445

PA 341; SR 0341

Good

Over: TRIB TO SWATARA CREEK

3 MI. E. OF MIDDLETOWN, Dauphin, PA

Built 1992 Load: 47.2 t ADT: 2,078

MID-COUNTY EXWY.SB

Good

Over: REED ROAD;WHETSTONE CRK.

.8MI.NE.OF OHARA 26A12, Delaware, PA

Built 1989 Load: 47.2 t ADT: 38,465

MILL ROAD

Good

Over: WEST BRANCH CHESTER CR.

CONCORD;THORNBURY 32A09, Delaware, PA

Built 1973 Load: 47.2 t ADT: 1,037

SR 90 WB

Good

Over: OVER T-568 FOOTMILL ROAD

SUMMIT TOWNSHIP, Erie, PA

Built 1996 Load: 47.2 t ADT: 20,099

SR1001;Mt.Pleasant

Good

Over: Conococheague Creek

.5 MI N OF FAYETTEVILLE, Franklin, PA

Built 1931 Load: 47.2 t ADT: 1,977

K311 DECORUM ROAD

Good

Over: S BR LITTLE AUGHWICK CRK

BURNT CABINS, Fulton, PA

Built 1941 Load: 47.2 t ADT: 172

SR 0019

Good

Over: BOYD RUN

WASHINGTON TOWNSHIP, Greene, PA

Built 1993 Load: 47.2 t ADT: 688

SR 2021

Good

Over: FORT RUN

3 MI.N.OF SHIRLEYSBURG, Huntingdon, PA

Built 1937 Load: 47.2 t ADT: 65

Showing 18,301-18,350 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.