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 6

Good

Over: OVER PHOENIX RUN

1 MI W OF GAINES, Tioga, PA

Built 2022 Load: 39.5 t ADT: 3,968

SR 4007

Good

Over: US 22

SMITH TOWNSHIP, Washington, PA

Built 2019 Load: 39.5 t ADT: 3,144

T-310 (CO.BR#11)

Good

Over: TOWANDA CREEK

1.2 MI. E OF CANTON BORO, Bradford, PA

Built 2019 Load: 39.5 t ADT: 89

SR 35-PA 35

Good

Over: COCOLAMUS CREEK

2 MI NE COCOLAMUS, Juniata, PA

Built 2019 Load: 39.5 t ADT: 3,817

SR 1023

Good

Over: JOHNSON CREEK

3 MILE NORTH OF MERCUR, Bradford, PA

Built 2020 Load: 39.5 t ADT: 120

SR 4005

Good

Over: Polen Run

RICHHILL TOWNSHIP, Greene, PA

Built 2021 Load: 39.5 t ADT: 99

Everetts Road

Good

Over: Huntington Creek

700 FT SOUTH OF SR 4006, Luzerne, PA

Built 2020 Load: 39.5 t ADT: 55

SR 2004

Good

Over: JACKS CREEK

2 MILES NE LEWISTOWN, Mifflin, PA

Built 2020 Load: 39.5 t ADT: 2,356

T-874 (CO.BR.#36)

Good

Over: Fargo Creek

1.1 MI. SW OF SILVARA, Bradford, PA

Built 2020 Load: 39.5 t ADT: 100

PA TPK 0576

Good

Over: SR 0980 / Fort Cherry

Robinson Township, Washington, PA

Built 2017 Load: 39.5 t ADT: 10,538

PA TPK 0576

Good

Over: SR 0980 / Fort Cherry

Robinson Township, Washington, PA

Built 2017 Load: 39.5 t ADT: 10,538

SR 3012 LR 39046S

Good

Over: Schaefer Run

SCHANTZ ROAD, Lehigh, PA

Built 2021 Load: 39.5 t ADT: 13,400

CHURCH ROAD

Good

Over: SEPTA NORRSTN.HIGH SPEED

1BL.E.YERKES RD. 3367-D7, Montgomery, PA

Built 2021 Load: 39.5 t ADT: 10,639

SR3005

Good

Over: GLADE RUN

PONY FARM ROAD NO.2, Armstrong, PA

Built 2022 Load: 39.5 t ADT: 150

T-522 DOTTERER RD

Good

Over: OVER MILL CREEK

ROCKLAND TOWNSHIP, Venango, PA

Built 2021 Load: 39.5 t ADT: 100

SR 1009BR MOORE ST

Good

Over: MUDDY RUN

Hunt Boro @ Moore & 9th, Huntingdon, PA

Built 2021 Load: 39.5 t ADT: 6,129

T-554 BREWER ROAD

Good

Over: ROCKY RUN

INT OF T554 & SR 2007, Butler, PA

Built 2021 Load: 39.5 t ADT: 100

SR 1010

Good

Over: Lewis Creek

OAKLAND TWP 112W SR 1021, Susquehanna, PA

Built 2022 Load: 39.5 t ADT: 81

SR 4039 (LR 58042)

Good

Over: HILLS CREEK

6 MI N OF WHITNEYVILLE, Tioga, PA

Built 2023 Load: 39.5 t ADT: 204

SR 79 SB

Good

Over: PA Turnpike I-576 Ramp

Cecil Township, Washington, PA

Built 2020 Load: 39.5 t ADT: 45,914

US 15 NB; SR 0015

Good

Over: ROCK CREEK

SOUTH OF GETTYSBURG, Adams, PA

Built 1990 Load: 39.9 t ADT: 9,529

SR 0279 NB SB

Good

Over: SUFFOLK ST.

I-279 OVER SUFFOLK ST., Allegheny, PA

Built 1987 Load: 39.9 t ADT: 82,708

WIBLE RUN RD

Good

Over: WIBLE RUN

WB06 WIBLE RUN NO. 6, Allegheny, PA

Built 1987 Load: 39.9 t ADT: 3,833

RAMP A

Good

Over: SR 0051

1000S. OF ROCH-MNCA.BRG., Beaver, PA

Built 1964 Load: 39.9 t ADT: 2,521

SR 2049(LR 06109)

Good

Over: MANATAWNY CREEK

OLD AIRPORT ROAD, Berks, PA

Built 1962 Load: 39.9 t ADT: 2,442

PARK AVE

Good

Over: TOAD CREEK

NORTH OF HANCOCK, Berks, PA

Built 1974 Load: 39.9 t ADT: 825

I-99 / US 220 NBL

Good

Over: POPLAR RUN

.25 MI.S.OF NEWRY, Blair, PA

Built 1987 Load: 39.9 t ADT: 8,640

I-99 / US 220 SBL

Good

Over: POPLAR RUN

.25 MI.S.OF NEWRY, Blair, PA

Built 1987 Load: 39.9 t ADT: 7,809

SR 1002

Good

Over: SPENCER RUN

VILLAGE OF CROSS KEYS, Blair, PA

Built 1989 Load: 39.9 t ADT: 7,837

SR 1017

Good

Over: LITTLE JUNIATA RIVER

.75 MI.E.OF IRONVILLE, Blair, PA

Built 1937 Load: 39.9 t ADT: 378

SR 4008

Good

Over: KITTANNING RUN

2 MI.W.OF ALTOONA, Blair, PA

Built 1987 Load: 39.9 t ADT: 1,527

T-598 FALL RUN RD

Good

Over: JOHNSONS CREEK

0.2 MI SOUTH OF SR 467, Bradford, PA

Built 1991 Load: 39.9 t ADT: 100

SELLERSVILLE BYPAS

Good

Over: STATE ROAD

EAST OF TELFORD 20D06, Bucks, PA

Built 1967 Load: 39.9 t ADT: 43,031

SOUTH SUGAN ROAD

Good

Over: AQUETONG CREEK

NEW HOPE BOROUGH 25F03, Bucks, PA

Built 1973 Load: 39.9 t ADT: 883

T-407 Sportsman Rd

Good

Over: LITTLE CONEMAUGH RIVER

.5 MI.N.OF JAMESTOWN, Cambria, PA

Built 2006 Load: 39.9 t ADT: 222

STREET ROAD

Good

Over: CHESTER CREEK

WEST OF TR-352 41G11, Chester, PA

Built 2004 Load: 39.9 t ADT: 9,406

NORTH VALLEY ROAD

Good

Over: BRANCH VALLEY CREEK

NORTH OF PAOLI 23J05, Chester, PA

Built 1970 Load: 39.9 t ADT: 4,959

FIVE POINT ROAD

Good

Over: BIRCH RUN

HIGHLAND TOWNSHIP 37B02, Chester, PA

Built 1997 Load: 39.9 t ADT: 298

SR 830-PA 830

Good

Over: WOLF RUN

FALLS CREEK, Clearfield, PA

Built 1969 Load: 39.9 t ADT: 7,208

COUNTY LINE ROAD

Good

Over: COUNTY LINE BRANCH

1500 NORTH OF BENSON RD, Clinton, PA

Built 1999 Load: 39.9 t ADT: 20

SR 1001 PARK AVE.

Good

Over: OVER WOODCOCK CREEK

SAEGERTOWN BOROUGH, Crawford, PA

Built 1958 Load: 39.9 t ADT: 839

BRYN MAWR AVENUE

Good

Over: ITHAN CREEK

1MI.EAST PA-320 25H02, Delaware, PA

Built 1964 Load: 39.9 t ADT: 11,929

BULLENS LANE

Good

Over: CRUM CREEK

.75MI E OF SR0252 3697E10, Delaware, PA

Built 1962 Load: 39.9 t ADT: 3,225

BLACKWELL ROAD

Good

Over: LAUREL RUN

3.5 MI NE OF TYLER ROAD, Elk, PA

Built 2003 Load: 39.9 t ADT: 10

SR 90 EB

Good

Over: OVER T-558 OLD FRENCH RD

SUMMIT TOWNSHIP, Erie, PA

Built 1995 Load: 39.9 t ADT: 20,055

SR 2024 HAYES ROAD

Good

Over: OVER HUBBEL RUN

AMITY TOWNSHIP, Erie, PA

Built 1963 Load: 39.9 t ADT: 85

TIPPECANOE ROAD

Good

Over: REDSTONE CREEK

FRANK-RED TWP BY SR 4028, Fayette, PA

Built 1994 Load: 39.9 t ADT: 75

RAILROAD ST (T960)

Good

Over: COAL LICK RUN

JUST OFF LEBANON AVE, Fayette, PA

Built 1991 Load: 39.9 t ADT: 25

PA75;Ft Loudon Rd

Good

Over: LICKING CREEK

Village of Claylick, Franklin, PA

Built 1947 Load: 39.9 t ADT: 1,898

T447 IRON BRDGE RD

Good

Over: WOODEN BRIDGE CREEK

1.75 MI NW OF CLEAR RIDGE, Fulton, PA

Built 2006 Load: 39.9 t ADT: 52

Showing 16,151-16,200 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.