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 0549

Fair

Over: OVER CORY CREEK

2 MI E OF MANSFIELD, Tioga, PA

Built 1953 Load: 34.5 t ADT: 1,734

SR 2002

Fair

Over: OVER SR15 NB & SB

1.5MI W OF LIBERTY, Tioga, PA

Built 1975 Load: 34.5 t ADT: 123

SR 4005

Fair

Over: OVER NORTH FORK

3 MI N OF POTTER BROOK, Tioga, PA

Built 1963 Load: 34.5 t ADT: 434

SR 4008

Fair

Over: NORTH FORK CREEK

4 MI N OF POTTER BROOK, Tioga, PA

Built 1974 Load: 34.5 t ADT: 204

SR 4013

Fair

Over: OVER COWANESQUE RIVER

ACADEMY CORNERS VILLAGE, Tioga, PA

Built 1987 Load: 34.5 t ADT: 633

SR 1004

Fair

Over: LITTLE BUFFALO CREEK

VILLAGE OF KELLY CROSSRDS, Union, PA

Built 1950 Load: 34.5 t ADT: 1,553

SR 3003=8TH STREET

Fair

Over: BUFFALO CREEK

BORO OF MIFFLINBURG, Union, PA

Built 1940 Load: 34.5 t ADT: 1,362

JACKSON PLUM ROAD

Fair

Over: LAKE CREEK

JACKSON TOWNSHIP, Venango, PA

Built 1993 Load: 34.5 t ADT: 100

HALE ROAD

Fair

Over: EAST SANDY CREEK

PINE GROVE TOWNSHIP, Venango, PA

Built 1905 Load: 34.5 t ADT: 50

SR 426

Fair

Over: OVER BROKENSTRAW CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1963 Load: 34.5 t ADT: 1,141

SR 0018

Fair

Over: SR 0022

HANOVER TOWNSHIP, Washington, PA

Built 1970 Load: 34.5 t ADT: 7,224

SR 0070

Fair

Over: DUTCH FORK BUFFALO CREEK

DONEGAL TOWNSHIP, Washington, PA

Built 1961 Load: 34.5 t ADT: 12,124

SR 0070

Fair

Over: SR 1009

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 34.5 t ADT: 26,519

SR 0079

Fair

Over: TOWNSHIP ROAD 357

AMWELL TOWNSHIP, Washington, PA

Built 1966 Load: 34.5 t ADT: 12,106

SR 0079

Fair

Over: TOWNSHIP ROAD 357

AMWELL TOWNSHIP, Washington, PA

Built 1966 Load: 34.5 t ADT: 12,072

SR 2067

Fair

Over: NS R/R MON CITY ST

OLD BROWNSVILLE BRIDGE, Washington, PA

Built 1913 Load: 34.5 t ADT: 2,688

SR 3023

Fair

Over: SR 0070

DONEGAL TOWNSHIP, Washington, PA

Built 1966 Load: 34.5 t ADT: 1,710

SR 4045

Fair

Over: BRANCH OF CROSS CREEK

HOPEWELL TOWNSHIP, Washington, PA

Built 1960 Load: 34.5 t ADT: 268

MCCLURG BRIDGE

Fair

Over: KINGS CREEK

200 SOUTH OF TR 855, Washington, PA

Built 1887 Load: 34.5 t ADT: 50

OHARA STREET

Fair

Over: ROBBS RUN

OHARA STREET BRIDGE, Washington, PA

Built 1936 Load: 34.5 t ADT: 700

SR 0348 TR 348

Fair

Over: JONES CREEK

SALEM TWP .1 M W SR 3019, Wayne, PA

Built 1940 Load: 34.5 t ADT: 7,034

SR 0119

Fair

Over: JACKS RUN

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1992 Load: 34.5 t ADT: 8,975

SR 0119

Fair

Over: CRABTREE CREEK

UNITY & SALEM TOWNSHIP, Westmoreland, PA

Built 1994 Load: 34.5 t ADT: 5,776

SR 1071

Fair

Over: HYPOCRITE CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1932 Load: 34.5 t ADT: 215

SR 3014

Fair

Over: SEWICKLEY CREEK

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1960 Load: 34.5 t ADT: 825

SR 3047

Fair

Over: BRANCH OF SEWICKLEY CK.

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1972 Load: 34.5 t ADT: 1,138

T-869

Fair

Over: PA TPK (I-76)

NEAR PLEASANT VALLEY, Westmoreland, PA

Built 1952 Load: 34.5 t ADT: 200

PA TPK (I-76)

Fair

Over: T-485 Slope Hill Rd

EAST OF CARPENTERTOWN, Westmoreland, PA

Built 1939 Load: 34.5 t ADT: 34,232

SR 8007

Fair

Over: SW PA R/R & SEWICKLEY CK

NEW STANTON BOROUGH, Westmoreland, PA

Built 1977 Load: 34.5 t ADT: 3,032

SR 0006 TR 6

Fair

Over: TUSCARORA CREEK

BRAINTRIM TWP JCT TR 367, Wyoming, PA

Built 1965 Load: 34.5 t ADT: 4,693

US 30; SR 0030

Fair

Over: SR 2005; MEMORY LANE

US 30 OVER LR 66045, York, PA

Built 1971 Load: 34.5 t ADT: 46,872

SR 2005

Fair

Over: MILL CREEK

2 MILE NW OF YOE, York, PA

Built 1938 Load: 34.5 t ADT: 5,734

SR 4043

Fair

Over: N BR BERMUDIAN CR

1 MI.N.E. OF BERMUDIAN, York, PA

Built 1938 Load: 34.5 t ADT: 862

OAK HOLLOW ROAD

Fair

Over: BEAVER CREEK

1.8W N BRIDGVL/BEAVER RUN, York, PA

Built 1989 Load: 34.5 t ADT: 100

OWL VALLEY ROAD

Fair

Over: KREUTZ CREEK

1 S.HALLAM KREUTZ CRK., York, PA

Built 1970 Load: 34.5 t ADT: 200

SMITH STREET

Fair

Over: WILLIS RUN

SMITH ST OVER WILLIS RUN, York, PA

Built 1956 Load: 34.5 t ADT: 500

ARGYLE AVENUE

Fair

Over: ROCK CREEK

ARGYLE AV ROCK CREEK, York, PA

Built 1974 Load: 34.5 t ADT: 200

ROOSEVELT BLVD.

Fair

Over: CONRAIL(BURIED)

N.WHITAKER AVE. 3481D06, Philadelphia, PA

Built 1909 Load: 34.5 t ADT: 48,524

WOODHAVEN ROAD

Fair

Over: THORNTON ROAD

EAST OF ROUTE 1 3373C05, Philadelphia, PA

Built 1965 Load: 34.5 t ADT: 69,584

BUSTLETON AVENUE

Fair

Over: SEPTA;WEST TRENTON LINE

1MI.SOUTH PHILMONT3260H10, Philadelphia, PA

Built 1974 Load: 34.5 t ADT: 29,688

RAMP A N.B. (ON)

Fair

Over: PILE SUPPORTED SLAB FILL

ENTERPRISE AVE. 3699F09, Philadelphia, PA

Built 1971 Load: 34.5 t ADT: 2,281

JFK BLVD.AT 30TH

Fair

Over: AMTRAK(NY BRANCH);ROAD

NR.30TH STR.STA. 3590A08, Philadelphia, PA

Built 1955 Load: 34.5 t ADT: 11,728

Broad Street

Fair

Over: CONRAIL B&O RR BELT LINE

S. of I-95 37D09, Philadelphia, PA

Built 1917 Load: 34.5 t ADT: 23,000

"B" & Somerset Sts

Fair

Over: CONRAIL (Richmond Br)

"B"& Somerset Sts.3590-K2, Philadelphia, PA

Built 1985 Load: 34.5 t ADT: 5,400

NJ RT 73

Fair

Over: DELAWARE RIVER

2.0 MI NW JCT US RT 130, Armstrong, PA

Built 1929 Load: 34.5 t ADT: 42,270

RAMP C (SB) ON

Fair

Over: OPEN FIELD

BROAD STREET INTER3700B07, Philadelphia, PA

Built 1969 Load: 34.5 t ADT: 6,255

RAMP J NORTHBOUND

Fair

Over: ORTHODOX PEARCE STREETS

ARAMINGO INTERCH. 3481H10, Philadelphia, PA

Built 1971 Load: 34.5 t ADT: 15,861

AUSTRAW ROAD

Fair

Over: NORTH FORK TROUT RUN

NORTH OF LIGONIER BOROUGH, Westmoreland, PA

Built 1999 Load: 34.5 t ADT: 341

PA 31 (LR 49)

Fair

Over: PTC B-481 MP 114.55

NEAR SR 31 & SR 1001 JCT, Somerset, PA

Built 2001 Load: 34.5 t ADT: 3,931

RAMP KK

Fair

Over: RAMP G

AIRPORT INTERCHAN 3699B09, Philadelphia, PA

Built 2002 Load: 34.5 t ADT: 3,597

Showing 5,951-6,000 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.