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 322-US 322

Fair

Over: SR 3010 AND SPRING CREEK

OAK HALL, Centre, PA

Built 1970 Load: 41.7 t ADT: 9,360

SR 8008-I-80 RAMP

Fair

Over: HOLT HOLLOW RUN

EXIT 158 RAMP C, Centre, PA

Built 1966 Load: 41.7 t ADT: 1,980

WEST CHESTER BYPAS

Fair

Over: BOLMAR STREET (T-349)

NEAR WEST CHESTER 32E12, Chester, PA

Built 1954 Load: 41.7 t ADT: 56,708

NORTH VALLEY ROAD

Fair

Over: AMTRAK - MAIN LINE

PAOLI STATION 23J8, Chester, PA

Built 1983 Load: 41.7 t ADT: 4,959

GOOD HOPE ROAD

Fair

Over: WHITE CLAY CREEK

NEAR LANDENBERG 54E6, Chester, PA

Built 1961 Load: 41.7 t ADT: 2,095

NORTHBROOK ROAD

Fair

Over: BROAD RUN CREEK

NORTHBROOK 39J3, Chester, PA

Built 1987 Load: 41.7 t ADT: 2,322

RED BRIDGE LANE

Fair

Over: POCOPSON CREEK

150 FT S SR52 ADC 3692-F6, Chester, PA

Built 1970 Load: 41.7 t ADT: 100

SR 1013

Fair

Over: MOOSE CREEK

CLEARFIELD, Clearfield, PA

Built 1919 Load: 41.7 t ADT: 320

SR 220-US 220

Fair

Over: NITTANY & BALD EAGLE RR

2 MILE EAST MILL HALL, Clinton, PA

Built 1976 Load: 41.7 t ADT: 8,091

SR 220-US 220

Fair

Over: NITTANY & BALD EAGLE RR

2 MILE EAST MILL HALL, Clinton, PA

Built 1976 Load: 41.7 t ADT: 8,409

SR 2002

Fair

Over: CHERRY RUN

4 MILE SOUTHEAST LAMAR, Clinton, PA

Built 1940 Load: 41.7 t ADT: 633

SR 42

Fair

Over: N.B. SUSQUEHANNA RIVER

CATAWISSA RIVER BRIDGE, Columbia, PA

Built 1986 Load: 41.7 t ADT: 7,220

SR-80 WBL

Fair

Over: OVER SR 4009

TOWN OF BLOOMSBURG, Columbia, PA

Built 1965 Load: 41.7 t ADT: 14,985

SR 487

Fair

Over: OVER I-80

LIGHTSTREET INTERCHANGE, Columbia, PA

Built 1963 Load: 41.7 t ADT: 7,512

SR 8 Spring Str

Fair

Over: OVER PINE HOLLOW RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1986 Load: 41.7 t ADT: 2,533

SR 3016 HARMONSBG

Fair

Over: OVER B&LE RAILROAD

SUMMIT TOWNSHIP, Crawford, PA

Built 1948 Load: 41.7 t ADT: 2,032

T-616 SHERRED ROAD

Fair

Over: OVER COULTER RUN

.8 MI.NW.SR.1019 ON T-616, Crawford, PA

Built 1930 Load: 41.7 t ADT: 250

US 11 SB; ENOLA RD

Fair

Over: CONODOGUINET CREEK

WEST FAIRVIEW, Cumberland, PA

Built 1928 Load: 41.7 t ADT: 7,306

SR 1005

Fair

Over: CONODOGUINET CREEK

0.2 MI.N. OF L.R. 34, Cumberland, PA

Built 1986 Load: 41.7 t ADT: 3,907

RIVER ROAD

Fair

Over: NORFOLK SOUTHERN RR

OVERVIEW BRIDGE, Cumberland, PA

Built 1999 Load: 41.7 t ADT: 500

ALLEGHENY STREET

Fair

Over: SUSQUEHANNA STREET

200 FT NW OF SR 0322, Dauphin, PA

Built 1942 Load: 41.7 t ADT: 1,000

SR 2019

Fair

Over: BEAVER CREEK

1.5 MI. N.W. HUMMELSTOWN, Dauphin, PA

Built 1984 Load: 41.7 t ADT: 11,949

ARCH STREET T-707

Fair

Over: WICONISCO CREEK

0.3 NE LYKENS/WICONISCO, Dauphin, PA

Built 1998 Load: 41.7 t ADT: 382

SR 8010;RP E-3 E-4

Fair

Over: PAXTON STREET

2 MI. E. OF HBG., Dauphin, PA

Built 1970 Load: 41.7 t ADT: 5,616

SR 8018; RAMP J

Fair

Over: PA 230 AMTRAK AIRPT. DR

1 MI E OF HIGHSPIRE, Dauphin, PA

Built 1976 Load: 41.7 t ADT: 3,026

MEDIA BY-PASS

Fair

Over: STATE ROAD

1MI.NORTH PA 252 34E02, Delaware, PA

Built 1959 Load: 41.7 t ADT: 78,806

INTERSTATE 95

Fair

Over: SEPTA (NOT ACTIVE)

1.5MI.N.OF US 322 43D05, Delaware, PA

Built 1964 Load: 41.7 t ADT: 109,139

INDUSTRIAL AVENUE

Fair

Over: EDDYSTONE AVENUE

EDDYSTONE 3807 F04, Delaware, PA

Built 1948 Load: 41.7 t ADT: 14,523

RELOC;LR 762 W.B.

Fair

Over: RAMP A EASTBOUND

NR.HILTON COMP. 3808 F01, Delaware, PA

Built 1984 Load: 41.7 t ADT: 4,873

SPROUL ROAD

Fair

Over: WHISKEY RUN & SEPTA

.5MI.N.BALTIMORE 34J05, Delaware, PA

Built 1949 Load: 41.7 t ADT: 14,557

MID-COUNTY EXWY.SB

Fair

Over: CRUM CK;BLACK ROCK PARK

BLACK ROCK PARK 34H11, Delaware, PA

Built 1988 Load: 41.7 t ADT: 36,649

OHARA DRIVE

Fair

Over: MID-COUNTY EXPRESSWAY

CARDINAL OHARA HS 25J13, Delaware, PA

Built 1989 Load: 41.7 t ADT: 1,638

HAVERFORD ROAD

Fair

Over: BRANCH COBBS CREEK

3MI.TO DARBY ROAD 26F04, Delaware, PA

Built 1927 Load: 41.7 t ADT: 17,421

KNOWLTON ROAD

Fair

Over: CHESTER CREEK / 3696-C10

ASTON INDUSTR.PK. 33H13, Delaware, PA

Built 1850 Load: 41.7 t ADT: 6,666

SR 19 PEACH ST

Fair

Over: OVER WALNUT CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 1950 Load: 41.7 t ADT: 29,388

SR 90 WB

Fair

Over: OVER CSX RAILROAD

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 41.7 t ADT: 9,175

SR 97 UNION CITY

Fair

Over: OVER Buffalo & Pittsburg

WATERFORD TOWNSHIP, Erie, PA

Built 1989 Load: 41.7 t ADT: 6,919

SR 2025 SCIOTA RD.

Fair

Over: OVER HARE CREEK BRANCH

WAYNE TOWNSHIP, Erie, PA

Built 1939 Load: 41.7 t ADT: 1,311

T-302 ONEIL ROAD

Fair

Over: S BR FRENCH CREEK

1 MI NORTH OF SR 2010, Erie, PA

Built 1963 Load: 41.7 t ADT: 55

MARINA DRIVE

Fair

Over: LONG POND

LAGOON BRIDGE, Erie, PA

Built 1959 Load: 41.7 t ADT: 1,930

SR 0381

Fair

Over: MEADOW RUN

OHIOPYLE BOROUGH, Fayette, PA

Built 1996 Load: 41.7 t ADT: 2,469

SR 0381

Fair

Over: POPLAR RUN

SPRINGFIELD TOWNSHIP, Fayette, PA

Built 1930 Load: 41.7 t ADT: 2,645

SR 3027

Fair

Over: GEORGE CREEK

FAIRCHANCE BOROUGH, Fayette, PA

Built 1905 Load: 41.7 t ADT: 3,711

SR 4003

Fair

Over: LITTLE REDSTONE CREEK

WASHINGTON TOWNSHIP, Fayette, PA

Built 1968 Load: 41.7 t ADT: 2,446

PA 75; Path Valley

Fair

Over: DRY RUN

DRY RUN, Franklin, PA

Built 1953 Load: 41.7 t ADT: 1,434

T-423 Davis Ln Rd

Fair

Over: PA TPK (I-76)

NEAR HUSTONTOWN, Fulton, PA

Built 1939 Load: 41.7 t ADT: 240

SR 1029

Fair

Over: TENMILE CREEK

JEFFERSON TOWNSHIP, Greene, PA

Built 1991 Load: 41.7 t ADT: 450

SR 2012

Fair

Over: DUNKARD CREEK

DUNKARD TOWNSHIP, Greene, PA

Built 1987 Load: 41.7 t ADT: 775

T504 MILL CRK HOLL

Fair

Over: SADDLERS RUN

159 FEET NORTH OF TR 655, Huntingdon, PA

Built 1941 Load: 41.7 t ADT: 135

COLERAIN ROAD

Fair

Over: SPRUCE CREEK

150 FT EAST OF SR 45, Huntingdon, PA

Built 1997 Load: 41.7 t ADT: 45

Showing 8,301-8,350 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.