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

MARKET ST EXT

Good

Over: MILL CREEK

2.5 MILES NE OF LIGONIER, Westmoreland, PA

Built 2015 Load: 53.5 t ADT: 3,522

Airport Rd SR 2057

Good

Over: Carnahan Run

Laurel Point, Armstrong, PA

Built 2016 Load: 53.5 t ADT: 412

SR 2002

Good

Over: COAL RUN

0.5 Mi E SR 356 Inter., Butler, PA

Built 2016 Load: 53.5 t ADT: 1,316

SR 0706 SH

Good

Over: PETTIS CREEK

BRIDGWTR TP 2 M W TR 167, Susquehanna, PA

Built 2016 Load: 53.5 t ADT: 1,549

Main St (SR 0035)

Good

Over: TRIB LITTLE LOST CREEK

MCALISTERVILLE, Juniata, PA

Built 2017 Load: 53.5 t ADT: 5,025

CHERRY HILL RUN RD

Good

Over: CHERRY RUN

6.7 Miles SW of SR-422, Armstrong, PA

Built 2017 Load: 53.5 t ADT: 75

T-322 (CO.BR.14)

Good

Over: LK MASKENOZHA-LK LEHMAN

LAKE MASKENOZHA-LK LEHMAN, Pike, PA

Built 2017 Load: 53.5 t ADT: 500

Camp Road

Good

Over: Black Creek

0.1 MI E OF PA125, Schuylkill, PA

Built 2019 Load: 53.5 t ADT: 150

OTTS ROAD

Good

Over: BRANCH MACOBY CREEK

300 FT W OF SUNNYVALE DR, Montgomery, PA

Built 2007 Load: 53.5 t ADT: 750

SR4005

Good

Over: North Fork Creek

0.4 mi N SR 4006 Inter., Jefferson, PA

Built 2020 Load: 53.5 t ADT: 192

OLD FRYBURG RD

Good

Over: LICKING CREEK

HUEFNER NO.3, Clarion, PA

Built 2017 Load: 53.8 t ADT: 382

BISHOP HICKORY RD

Good

Over: MILLER RUN

CECIL TOWNSHIP, Washington, PA

Built 2018 Load: 53.8 t ADT: 4,746

COLD RUN RD T-902

Good

Over: COLD RUN

JUST NORTH OF HECLA, Schuylkill, PA

Built 1937 Load: 54.1 t ADT: 700

MAPLE AVE (T-545)

Good

Over: W.BRANCH SCHUYLKILL RIV.

AT RT. 901 INTERSECTION, Schuylkill, PA

Built 1959 Load: 54.1 t ADT: 1,000

Creek Rd (SR 4039)

Good

Over: Mahantango Creek

VILLAGE OF HAAS, Schuylkill, PA

Built 2015 Load: 54.1 t ADT: 274

Kooser Rd

Good

Over: MILL RUN

SPRINGFIELD TOWNSHIP, Fayette, PA

Built 2017 Load: 54.1 t ADT: 236

Pritts Rd

Good

Over: LAUREL RUN

SPRINGFIELD TOWNSHIP, Fayette, PA

Built 2017 Load: 54.1 t ADT: 157

BENTLYVILLE RD

Good

Over: PIGEON CREEK

FALLOWFIELD TOWNSHIP, Washington, PA

Built 2018 Load: 54.1 t ADT: 651

BRADYS RUN RD

Good

Over: SOUTH BRANCH BRADYS RUN

.2 MI. N.E. OF SR 4018, Beaver, PA

Built 2017 Load: 54.1 t ADT: 1,353

SR 144-PA 144

Good

Over: TRIB WALLACE RUN

GUM STUMP, Centre, PA

Built 2019 Load: 54.1 t ADT: 996

T-840 MILLERS EDDY

Good

Over: VALLEY RUN

350 north of T-633, Armstrong, PA

Built 2020 Load: 54.1 t ADT: 79

PA 829

Good

Over: NORTH SPRING CREEK

285 FEET NORTH OF SR 655, Huntingdon, PA

Built 2022 Load: 54.1 t ADT: 642

MAIN ACCESS ROAD

Good

Over: Crooked Creek

TIOGA-HAMMOND LAKES, Tioga, PA

Built 1975 Load: 54.1 t ADT: 850

BABCOCK BLVD

Good

Over: GIRTYS RUN

NEAR SHALER-ROSS TWP LINE, Allegheny, PA

Built 1929 Load: 54.4 t ADT: 12,681

SR 4018

Good

Over: ROCKLICK CREEK

0.29 MILE WEST FROM PA 96, Bedford, PA

Built 1939 Load: 54.4 t ADT: 172

SR 3002

Good

Over: SOUTH POPLAR RUN

1.4 MI.W.OF CLAYSBURG, Blair, PA

Built 1989 Load: 54.4 t ADT: 1,537

T527 DECKER HOLLOW

Good

Over: VANSCOYOC RUN

4.5 MI.N.OF TYRONE, Blair, PA

Built 1936 Load: 54.4 t ADT: 129

SR 14

Good

Over: TRIBUTARY SOUTH CREEK

1.2 MI S. OF GILLETTE, Bradford, PA

Built 1994 Load: 54.4 t ADT: 1,523

SR 4031

Good

Over: TR. TO BECKWITH CREEK

1 MI. SE OF MOSHERVILLE, Bradford, PA

Built 1929 Load: 54.4 t ADT: 547

T-628 WARREN BR# 2

Good

Over: PENDLETON CREEK

2.4 MI N OF POTTERVILLE, Bradford, PA

Built 1991 Load: 54.4 t ADT: 20

SR4007

Good

Over: SLIPPERY ROCK CREEK

W.OF SLIPPERY ROCK, Butler, PA

Built 1996 Load: 54.4 t ADT: 1,247

PA TPK (RAMP G)

Good

Over: SR 0209 LR 164

MAHONING INTERCHANGE, Carbon, PA

Built 1956 Load: 54.4 t ADT: 5,524

SAYLORS MILL ROAD

Good

Over: PIGEON CREEK

0.7 Mi SW PA-724 3139-D8, Chester, PA

Built 1973 Load: 54.4 t ADT: 560

SR 3016

Good

Over: TRIB SUSQUEHANNA RIVER

CATAWISSA BORO, Columbia, PA

Built 1948 Load: 54.4 t ADT: 124

SR 77 STATE STREET

Good

Over: OVER OIL CREEK

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1984 Load: 54.4 t ADT: 1,372

MID-COUNTY EXWY.NB

Good

Over: RAMP N-L;OFF TO TR 30

NEAR VILLANOVA 14H10, Delaware, PA

Built 1990 Load: 54.4 t ADT: 45,310

EAGLE ROAD

Good

Over: AMTRAK

NORTHEAST OF US-30 14B08, Delaware, PA

Built 1995 Load: 54.4 t ADT: 5,012

SWARTHMORE AVENUE

Good

Over: AMTRAK MAIN LINE

RIDLEY PARK BOR. 35C12, Delaware, PA

Built 1994 Load: 54.4 t ADT: 9,063

SR 4010 Eden/chees

Good

Over: ROCK SPRG.BR.OF BACK CR.

3 MI EAST OF EDENVILLE, Franklin, PA

Built 1940 Load: 54.4 t ADT: 1,545

T-680 POWER PLANT

Good

Over: TWO LICK CREEK

0.3 MI FROM US 119, Indiana, PA

Built 1999 Load: 54.4 t ADT: 162

T-774 N HARVEST RD

Good

Over: MUDDY RUN

3/4 MI NORTH OF SR 340, Lancaster, PA

Built 1991 Load: 54.4 t ADT: 415

EASTBROOK ROAD

Good

Over: HOTTENBAUGH RUN

500 WEST OF SR 1009, Lawrence, PA

Built 1959 Load: 54.4 t ADT: 3,153

SR 0044

Good

Over: OVER BR. WHITE DEER CRK.

VILLAGE OF ELIMSPORT, Lycoming, PA

Built 1996 Load: 54.4 t ADT: 1,757

US 15

Good

Over: OVER T-663

4.0 MI.N.OF WILLIAMSPORT, Lycoming, PA

Built 1993 Load: 54.4 t ADT: 8,196

BRIDGE 2004 T-597

Good

Over: OVER OTTER CREEK

HOLMES RD. COOLSPRING TWP, Mercer, PA

Built 1984 Load: 54.4 t ADT: 61

SR 405

Good

Over: OVER DELAWARE RUN

1.7 MI.N.OF WATSONTOWN, Northumberland, PA

Built 1985 Load: 54.4 t ADT: 2,557

I-80 RAMP K

Good

Over: RAMP K OVER LIMESTONE R

1.5 MI E OF MILTON, Northumberland, PA

Built 1962 Load: 54.4 t ADT: 1,359

SR 2005

Good

Over: ELK LICK CREEK

4 MILE W. OF MEYERSDALE, Somerset, PA

Built 1939 Load: 54.4 t ADT: 333

SR 1012

Good

Over: EAST LAKE CREEK

NEW MILFORD T .3M N TR492, Susquehanna, PA

Built 1949 Load: 54.4 t ADT: 880

LINN RUN ROAD

Good

Over: LINN RUN

4 MI SOUTH OF SR 2043, Westmoreland, PA

Built 1934 Load: 54.4 t ADT: 325

Showing 19,401-19,450 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.