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 965

Good

Over: SANDY CREEK

FRENCH CREEK TWP, Venango, PA

Built 2010 Load: 38.1 t ADT: 1,063

SR 62 EXPRESSWAY

Good

Over: OVER NS RAILROAD

CITY OF SHARON, Mercer, PA

Built 2010 Load: 38.1 t ADT: 9,562

SR 219 US 219

Good

Over: B&P RAILROAD/JOHNSON RUN

JOHNSONBURG BORO, Elk, PA

Built 2010 Load: 38.1 t ADT: 7,146

SR 4024 BAKER HILL

Good

Over: LAWANGO CREEK

DELAWARE TOWNSHIP, Mercer, PA

Built 2010 Load: 38.1 t ADT: 226

SR 0087 TR 87

Good

Over: S BR OF MEHOOPANY CREEK

FORKSTON TP .1M E SR 3001, Wyoming, PA

Built 2010 Load: 38.1 t ADT: 959

T-508 PERRY LANE

Good

Over: CONNEAUTTEE CREEK

1000 FT NORTH OF SR 99, Erie, PA

Built 2010 Load: 38.1 t ADT: 444

CONNEAUTTEE ROAD

Good

Over: LITTLE CONNEAUTTEE CREEK

750 FT EAST OF SR 3025, Erie, PA

Built 2010 Load: 38.1 t ADT: 94

PA TPK (RAMP AB)

Good

Over: PA TPK (I-76)

RAPHO TWP, Lancaster, PA

Built 2007 Load: 38.1 t ADT: 4,021

SPRING RUN RD EXT

Good

Over: BOGGS RUN

BG01 BOGGS RUN 1, Allegheny, PA

Built 2011 Load: 38.1 t ADT: 2,134

40th Street

Good

Over: AMTRAK (Pittsburgh ML)

N of Westminster Av 27K09, Philadelphia, PA

Built 2012 Load: 38.1 t ADT: 4,300

RAVINE ST

Good

Over: HOMESTEAD RUN

HV04 HOMEVILLE CR # 4, Allegheny, PA

Built 1920 Load: 38.2 t ADT: 7,790

SR 4027

Good

Over: OVER BENTLEY CREEK

VILLAGE OF BENTLEY CREEK, Bradford, PA

Built 1975 Load: 38.2 t ADT: 616

T-410

Good

Over: BOWMAN CREEK

2.4 MI. SE OF LADDSBURG, Bradford, PA

Built 1972 Load: 38.2 t ADT: 50

SR 1025;Erford Rd.

Good

Over: SR 1014;Camp Hill Bypass

Long Meadows, Cumberland, PA

Built 1952 Load: 38.2 t ADT: 12,204

SR 219-US 219

Good

Over: ELK CREEK

RIDGWAY BORO, Elk, PA

Built 1912 Load: 38.2 t ADT: 5,225

PA 16;Buchanan Trl

Good

Over: Conococheague Creek

1 mi. W. of Greencastle, Franklin, PA

Built 1941 Load: 38.2 t ADT: 13,415

S.R. 1032 3rd st.

Good

Over: LITTLE COCALICO CREEK

DENVER BORO, Lancaster, PA

Built 1972 Load: 38.2 t ADT: 3,407

KINSEYVILLE RD

Good

Over: REYNOLDS RUN

2000 FT WEST OF SR 2001, Lancaster, PA

Built 1977 Load: 38.2 t ADT: 205

T-383 CTY BR 19

Good

Over: RAPID RUN

1 MI. NWW OF FOREST HILL, Union, PA

Built 1935 Load: 38.2 t ADT: 108

JFK BLVD.

Good

Over: 21ST STREET

IN CENTER CITY 3590 B08, Philadelphia, PA

Built 1957 Load: 38.2 t ADT: 11,168

JFK BLVD.

Good

Over: 23RD STREET

IN CENTER CITY 3590B08, Philadelphia, PA

Built 1957 Load: 38.2 t ADT: 11,168

STEEN RD

Good

Over: SR 0079 NB SB

STEEN RD OVER I-79, Allegheny, PA

Built 2005 Load: 38.2 t ADT: 1,937

MILLVILLE ROAD

Good

Over: LITTLE FISHING CREEK

1 MILE N. OF BLOOMSBURG, Columbia, PA

Built 2009 Load: 38.2 t ADT: 6,301

SR 0166

Good

Over: Turnpike 43

1.2 mi S of SR 0040, Fayette, PA

Built 2009 Load: 38.2 t ADT: 3,764

US15

Good

Over: NS RC

Near Camp Hill, Cumberland, PA

Built 2010 Load: 38.2 t ADT: 89,416

SR 1056

Good

Over: Spruce Run

0.4 mi E of SR 0022, Westmoreland, PA

Built 2011 Load: 38.2 t ADT: 98

SR 0018

Good

Over: South Fork Tenmile Creek

1.2 mi N from SR 0021, Greene, PA

Built 2011 Load: 38.2 t ADT: 5,962

SR 4016 Carr Road

Good

Over: RUNDLETOWN CREEK

SUMMERHILL TWP, Crawford, PA

Built 2011 Load: 38.2 t ADT: 37

SR 4002

Good

Over: BROWNS CREEK

2 MI. WEST OF SACO, Bradford, PA

Built 2011 Load: 38.2 t ADT: 106

RIDGE ROAD

Good

Over: LITTLE MAHANTANGO CREEK

ROUGH AND READY, Schuylkill, PA

Built 2012 Load: 38.2 t ADT: 543

SR 1038

Good

Over: Trib to Allegheny River

SR 1038/SR 0268 Intersect, Armstrong, PA

Built 2011 Load: 38.2 t ADT: 13,328

SR 0536

Good

Over: REDBANK CREEK

0.7 mi. E SR 28 Intersec, Clarion, PA

Built 2012 Load: 38.2 t ADT: 1,139

BRIDGETON HILL RD

Good

Over: PENNSYLVANIA CANAL

.1 MI. S. PA32 2471D10, Bucks, PA

Built 2013 Load: 38.2 t ADT: 2,054

SR 35

Good

Over: NORFOLK SOUTHERN RR

MIFFLIN BORO, Juniata, PA

Built 2012 Load: 38.2 t ADT: 6,497

PA 309 (LR 226)

Good

Over: LITTLE SCHUYLKILL RIVER

CENTER ST TAMAQUA, Schuylkill, PA

Built 2012 Load: 38.2 t ADT: 14,691

Ramp C

Good

Over: SR 1016

SR 29 Interchange, Chester, PA

Built 2012 Load: 38.2 t ADT: 2,000

SR 2004 N.RIVER ST

Good

Over: LUZ CO RAIL AUTHORITY

PLAINS TWP .3 M S TR 309, Luzerne, PA

Built 2012 Load: 38.2 t ADT: 17,022

T-591 WRIGHT ROAD

Good

Over: CHERRY RUN

0.1 M NW of SR 2005, Armstrong, PA

Built 2013 Load: 38.2 t ADT: 25

SR1002 (LR48025)

Good

Over: BUSHKILL CREEK

MAIN ST TATAMY, Northampton, PA

Built 2013 Load: 38.2 t ADT: 19,737

PA 512 (LR 166)

Good

Over: BRUSH MEADOW CREEK

WASHINGTON ST.BANGOR, Northampton, PA

Built 2013 Load: 38.2 t ADT: 5,973

SR 0551 SH

Good

Over: DEER CREEK

1778 S. OF SR 208, Lawrence, PA

Built 2013 Load: 38.2 t ADT: 1,010

SR 0128

Good

Over: BUFFALO CREEK

AT SR 0356 INTER., Armstrong, PA

Built 2013 Load: 38.2 t ADT: 6,771

SR 1002

Good

Over: BIG RUN

2 MI NE ROMOLA, Centre, PA

Built 2013 Load: 38.2 t ADT: 459

T-346 RAINBOW ROAD

Good

Over: LITTLE SANDY CREEK

FRENCH CREEK TWP, Venango, PA

Built 2013 Load: 38.2 t ADT: 100

SR 0989

Good

Over: PA TURNPIKE(I-76)

EAST OF UNIONVILLE, Beaver, PA

Built 2013 Load: 38.2 t ADT: 839

WARD STREET

Good

Over: LITTLE LEHIGH CREEK

SE OF MLK JR. DRIVE, Lehigh, PA

Built 2013 Load: 38.2 t ADT: 20,000

SR 4043 SHERMAN RD

Good

Over: SHERMAN CREEK

SCOTT TWP 1.5 M W SR 4037, Wayne, PA

Built 2014 Load: 38.2 t ADT: 203

T-842 Witt Hill Rd

Good

Over: N Br. Jennings Run

Wellersburg Borough, Somerset, PA

Built 2014 Load: 38.2 t ADT: 200

T-623 HOBLET ROAD

Good

Over: TOMJACK CREEK

1.5 MI SOUTH OF SMITHFIEL, Bradford, PA

Built 2014 Load: 38.2 t ADT: 30

T-421 (Cider Rd)

Good

Over: PA TPK (I-76)

SR31 Allegheny/Cedar Rd, Bedford, PA

Built 2013 Load: 38.2 t ADT: 184

Showing 15,451-15,500 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.