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 0170 TR 170

Fair

Over: N BR LACKAWAXEN RIVER

CLINTON TWP .6M N SR 4005, Wayne, PA

Built 1920 Load: 47.2 t ADT: 605

SR 0030

Fair

Over: LOYALHANNA CK. & PVT. RD

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1986 Load: 47.2 t ADT: 7,160

PA TPK (PA 66)

Fair

Over: SR 4004 NFS RR

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 47.2 t ADT: 10,429

T499 HOOVER RD

Fair

Over: FOURMILE RUN

BTW T405 & SR 0130, Westmoreland, PA

Built 1992 Load: 47.2 t ADT: 70

FOX RUN ROAD

Fair

Over: FOX RUN

1 E.DOVER FOX RUN, York, PA

Built 1970 Load: 47.2 t ADT: 1,500

GITTS RUN ROAD

Fair

Over: OIL CREEK

1.1E HANOVER/OIL CREEK, York, PA

Built 1976 Load: 47.2 t ADT: 2,600

T-564 SUNSET ROAD

Fair

Over: PARADISE CREEK

0.4 MI SE OF SR 234, York, PA

Built 1973 Load: 47.2 t ADT: 100

ROOSEVELT BLVD NB

Fair

Over: SCHUYLKILL ROADS & RR

1MI.S.CITY LINE 3479K09, Philadelphia, PA

Built 1960 Load: 47.2 t ADT: 72,778

ROOSEVELT BLVD.SB

Fair

Over: SCHUYLKILL RIVER & ROADS

1MI.S.CITY LINE 3479K09, Philadelphia, PA

Built 1960 Load: 47.2 t ADT: 62,376

ROOSEVELT BLVD EXT

Fair

Over: SEPTA CHW LINE; CONRAIL

S.WISSAHICKON AVE.3480B08, Philadelphia, PA

Built 1960 Load: 47.2 t ADT: 128,310

Fox Street

Fair

Over: CSX

N of Hunting Park A 28E02, Philadelphia, PA

Built 1911 Load: 47.2 t ADT: 14,000

16th Street

Fair

Over: Roosevelt Blv Ext (US-1)

S of Cayauga Street 17H13, Philadelphia, PA

Built 1960 Load: 47.2 t ADT: 3,400

Chesterfield Road

Fair

Over: Byberry Creek

N of Wessex Lane 20B03, Philadelphia, PA

Built 1964 Load: 47.2 t ADT: 900

RP D;W TO S;S TO E

Fair

Over: EARTH FILL S.OF SOUTH ST

S.STREET INTERCH. 3589K09, Philadelphia, PA

Built 1958 Load: 47.2 t ADT: 8,427

RAMP G N.B.ON

Fair

Over: I-95; RAMPS X Y C E

(BRI) RAMP G 3591G01, Philadelphia, PA

Built 1975 Load: 47.2 t ADT: 5,289

SR 90 EB

Fair

Over: OVER T-568 FOOTMILL ROAD

SUMMIT TOWNSHIP, Erie, PA

Built 1997 Load: 47.2 t ADT: 20,606

SR 6008 WHITE BRG.

Fair

Over: OVER OIL CREEK

OIL CITY, Venango, PA

Built 1937 Load: 47.2 t ADT: 3,381

SR 1009

Fair

Over: Pitt & Ohio Central R/R

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1998 Load: 47.2 t ADT: 5,467

SR 0136

Fair

Over: SR 0070

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1998 Load: 47.2 t ADT: 6,948

SR0028

Fair

Over: REDBANK CREEK

NEW BETHLEHEM, Armstrong, PA

Built 1998 Load: 47.2 t ADT: 7,419

SR 1005

Fair

Over: SR 322-US 322

2 MI NORTH WEST MILROY, Mifflin, PA

Built 1998 Load: 47.2 t ADT: 694

US 219 NBL

Fair

Over: SR 2004 & ELKLICK CREEK

1.5 MI. N OF MEYERSDALE, Somerset, PA

Built 1998 Load: 47.2 t ADT: 1,861

US 219 SBL

Fair

Over: ACCESS RD & BLUE LICK CR

1.5 MI.N OF MEYERSDALE, Somerset, PA

Built 1998 Load: 47.2 t ADT: 1,896

SR 322-US 322 W.B.

Fair

Over: LAUREL CREEK AND T 795

2 MI NW MILROY, Mifflin, PA

Built 1999 Load: 47.2 t ADT: 8,585

WESTBOURNE ROAD

Fair

Over: CHESTER CREEK

WESTTOWN 41H2, Chester, PA

Built 1999 Load: 47.2 t ADT: 2,346

CHURCH STREET

Fair

Over: BREAKNECK CREEK

265 FT EAST OF CLAY AVE, Butler, PA

Built 2000 Load: 47.2 t ADT: 100

MERCER STREET

Fair

Over: CONNOQUENESSING CR

100 FT S EVERGREEN MILL, Butler, PA

Built 2000 Load: 47.2 t ADT: 1,200

SAWMILL LANE

Fair

Over: PENNYPACK CREEK

NEAR 463 3258-H2, Montgomery, PA

Built 1934 Load: 47.2 t ADT: 1,000

SR 2010 S MAIN ST

Fair

Over: SOLOMON CREEK

ASHLEY BO 200 W SR 2003, Luzerne, PA

Built 2001 Load: 47.2 t ADT: 4,726

PA 283; SR 0300

Fair

Over: PA 72; SR 72 Manheim Pk

PA 283 OVER PA 72, Lancaster, PA

Built 2000 Load: 47.2 t ADT: 80,379

T-480 BROMM ROAD

Fair

Over: E. BRANCH COXES CREEK

2 MI.S.OF SOMERSET, Somerset, PA

Built 2002 Load: 47.2 t ADT: 150

SR3014

Fair

Over: BIG RUN

BIG RUN, Jefferson, PA

Built 2002 Load: 47.2 t ADT: 208

SR522

Fair

Over: TRIBUTARY MIDDLE CREEK

2 MILE WEST OF BEAVERTOWN, Snyder, PA

Built 1949 Load: 47.2 t ADT: 4,340

SR0068

Fair

Over: ALLEGHENY RIVER

SGT. CARL F. CURRAN II, Clarion, PA

Built 2006 Load: 47.2 t ADT: 2,748

T-609

Fair

Over: JOHNSONS CREEK

2.5 MI E. OF ALLIS HOLLOW, Bradford, PA

Built 1988 Load: 47.2 t ADT: 100

T-553 Canistra Rd

Fair

Over: PA TPK (TOLL 43)

East of Exit M18, Fayette, PA

Built 2008 Load: 47.2 t ADT: 292

Gum Springs Road

Fair

Over: Toms Creek

3.6 miles SW of Fairfield, Adams, PA

Built 1900 Load: 47.2 t ADT: 100

MILL HILL ROAD

Fair

Over: MILL CREEK

EAST OF SHARTLESVILLE, Berks, PA

Built 1939 Load: 47.2 t ADT: 50

T-392

Fair

Over: SCHWEYER RUN

100 E OF PA 35, Juniata, PA

Built 1970 Load: 47.2 t ADT: 1,000

BRIDGE STREET

Fair

Over: CENTRAL NEW YORK RR

GRT BEND BRIDGE ST OVE NS, Susquehanna, PA

Built 1955 Load: 47.2 t ADT: 100

T-565; Main St.

Fair

Over: UNT to West Dry Run

0.1 MI W of SR 75/ SR641, Franklin, PA

Built 1924 Load: 47.2 t ADT: 100

East Water St.

Fair

Over: Stevens Run

Gettysburg Borough, Adams, PA

Built 2016 Load: 47.2 t ADT: 1,000

RANDOLPH DRIVE

Fair

Over: CULBERTSON RUN

S of Chloe circle 3470G1, Chester, PA

Built 2000 Load: 47.2 t ADT: 500

SELTZER AVENUE

Fair

Over: VALLEY RUN

S of Miller Avenue 3580F2, Chester, PA

Built 1980 Load: 47.2 t ADT: 500

WOODVIEW ROAD

Fair

Over: W. BR. WHITE CLAY CREEK

1/4 MI. E. PA-841 3799K6, Chester, PA

Built 1972 Load: 47.2 t ADT: 250

T-710 KATO RD

Fair

Over: SANDY RUN

5 MI NORTH OF PA 144, Centre, PA

Built 1910 Load: 47.2 t ADT: 50

PERKIOMEN CREEK RD

Fair

Over: TRIB TO PERKIOMEN CREEK

0.1 S OF DEER RUN RD, Montgomery, PA

Built 1970 Load: 47.2 t ADT: 500

GODSHALL ROAD

Fair

Over: INDIAN CREEK

N OF INDIAN CREEK RD, Montgomery, PA

Built 1970 Load: 47.2 t ADT: 2,000

ARCOLA ROAD

Fair

Over: DOE RUN

E OF COLLEGEVILLE RD, Montgomery, PA

Built 1970 Load: 47.2 t ADT: 6,028

T408 LOWER PORTAGE

Fair

Over: SKINNER CREEK

300 S OF SKINNER CRK RD, McKean, PA

Built 2023 Load: 47.2 t ADT: 100

Showing 10,101-10,150 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.