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

WISTAR ROAD(T331)

Fair

Over: QUEEN ANNE CREEK

1.8 MI SE OF US 1 3263-C4, Bucks, PA

Built 1978 Load: 37.2 t ADT: 1,000

TRAUGERS CROSSING

Fair

Over: GALLOWS RUN

.4 Mi SW Rt 611 2583-K4, Bucks, PA

Built 1950 Load: 37.2 t ADT: 115

PA TPK (I-276)

Fair

Over: NORFOLK S.RR

NEAR SOUTHAMPTON 41C05, Bucks, PA

Built 1954 Load: 37.2 t ADT: 85,801

TWP-357

Fair

Over: PA TPK (I-276)

SOUTH OF SOUTHAMPTON, Bucks, PA

Built 1954 Load: 37.2 t ADT: 200

PA TPK (I-276)

Fair

Over: SEPTA RR

NEAR TREVOSE, Bucks, PA

Built 1954 Load: 37.2 t ADT: 85,801

SR0079 NB

Fair

Over: TWP RD 347

NORTH OF HARMONY, Butler, PA

Built 1962 Load: 37.2 t ADT: 12,413

SR 0079 SB

Fair

Over: TWP RD 347

NORTH OF HARMONY, Butler, PA

Built 1962 Load: 37.2 t ADT: 12,696

T-529 DOWNIEVILLE

Fair

Over: BREAKNECK CREEK

180 FT E of SR 3015, Butler, PA

Built 1986 Load: 37.2 t ADT: 1,150

US 22 EBL

Fair

Over: NORFOLK SOUTHERN RR

0.2 MILE WEST OF TR 53, Cambria, PA

Built 1983 Load: 37.2 t ADT: 11,354

US 219 NBL

Fair

Over: US 22

OVER US 22, Cambria, PA

Built 1966 Load: 37.2 t ADT: 5,702

US 219 SBL

Fair

Over: US 22

OVER US 22, Cambria, PA

Built 1966 Load: 37.2 t ADT: 5,230

SR 1008

Fair

Over: CHEST CREEK

ECKENRODE MILL, Cambria, PA

Built 1941 Load: 37.2 t ADT: 1,164

SR 1027

Fair

Over: BURGOON RUN

3 MI.NW. OF DYSART, Cambria, PA

Built 1942 Load: 37.2 t ADT: 92

SR 4002

Fair

Over: WEST CREEK

BEECHWOOD, Cameron, PA

Built 1963 Load: 37.2 t ADT: 175

SR 150-PA 150

Fair

Over: BULLIT RUN

BLANCHARD DAM AREA, Centre, PA

Built 1966 Load: 37.2 t ADT: 4,676

US-1 BYPASS (SB)

Fair

Over: MILL ROAD (T-432)

NW KENNETT SQUARE 47C4, Chester, PA

Built 1965 Load: 37.2 t ADT: 14,302

MANOR ROAD

Fair

Over: W.BR.OF BRANDYWINE CREEK

N. ROUTE 30 BYPASS 28K2, Chester, PA

Built 1961 Load: 37.2 t ADT: 5,424

POTTSTOWN PIKE

Fair

Over: FRENCH CREEK

PUGHTOWN 6B12, Chester, PA

Built 1953 Load: 37.2 t ADT: 11,100

US 202

Fair

Over: WEST VALLEY ROAD

GATEWAY SHOPPING 24H03, Chester, PA

Built 1967 Load: 37.2 t ADT: 110,029

PAOLI PIKE

Fair

Over: CHESTER CREEK

NR.WEST CHESTER 32H06, Chester, PA

Built 1946 Load: 37.2 t ADT: 11,616

WALNUT STREET

Fair

Over: EAST BRANCH RED CLAY CR.

1MI.CLIFTON MILL 47G06, Chester, PA

Built 1923 Load: 37.2 t ADT: 2,709

EAST CYPRESS STR.

Fair

Over: EAST BR.RED CLAY CREEK

4 MI. TO YORKLYN 47F5, Chester, PA

Built 1940 Load: 37.2 t ADT: 8,686

STRASBURG ROAD

Fair

Over: W.BR.BRANDYWINE CREEK

MORTONVILLE 29F12/3580F09, Chester, PA

Built 1826 Load: 37.2 t ADT: 3,800

LTL.WASHINGTON RD.

Fair

Over: CULBERTSON RUN

NEAR SR 282 19K4, Chester, PA

Built 1941 Load: 37.2 t ADT: 1,074

SR0080 EB&WB

Fair

Over: DEER CREEK & T-411

DEER CREEK, Clarion, PA

Built 1965 Load: 37.2 t ADT: 19,699

SR 219-US 219

Fair

Over: BEAR RUN

MCGEES MILLS, Clearfield, PA

Built 1921 Load: 37.2 t ADT: 2,094

SR 255-PA 255

Fair

Over: NARROWS CREEK

2 MI SW SABULA, Clearfield, PA

Built 1939 Load: 37.2 t ADT: 4,733

SR 322-US 322

Fair

Over: W BR SUSQUEHANNA RIVER

CLEARFIELD BORO, Clearfield, PA

Built 1947 Load: 37.2 t ADT: 6,439

ON TSR 999

Fair

Over: LITTLE TROUT RUN

2 MI N SHAWVILLE, Clearfield, PA

Built 1984 Load: 37.2 t ADT: 49

SR 1018

Fair

Over: UPPER THREE RUNS

POTTERSDALE, Clearfield, PA

Built 1990 Load: 37.2 t ADT: 220

ON TSR 579

Fair

Over: LAURELLY RUN

4 MI N GLEASONTON, Clinton, PA

Built 1937 Load: 37.2 t ADT: 83

T-314

Fair

Over: DRURY RUN

0.1 MI SE OF DRURYS RUN, Clinton, PA

Built 1925 Load: 37.2 t ADT: 200

SR 0011 NBL

Fair

Over: TRIB. TO SUSQ. RIVER

6 MILES E OF BLOOMSBURG, Columbia, PA

Built 1948 Load: 37.2 t ADT: 6,788

SR 42

Fair

Over: TRIB.TO LITTLE FISHING C

3 MILES S OF MILLVILLE, Columbia, PA

Built 1955 Load: 37.2 t ADT: 3,788

SR 0080 EBL

Fair

Over: OVER TWP RD T-488

0.5 MILE W OF LIGHTSTREET, Columbia, PA

Built 1963 Load: 37.2 t ADT: 14,898

SR 0080 WBL

Fair

Over: OVER TWP RD T-488

0.5 MILE W OF LIGHTSTREET, Columbia, PA

Built 1963 Load: 37.2 t ADT: 14,985

SR 0080 WBL.

Fair

Over: OVER S.R. 11 SBL

2.5 MILES W OF BERWICK, Columbia, PA

Built 1964 Load: 37.2 t ADT: 12,988

SR 2005

Fair

Over: TRIB ROARING CREEK

3.5 MI S OF CATAWISSA, Columbia, PA

Built 1940 Load: 37.2 t ADT: 107

SR 1013 WATER ST.

Fair

Over: OVER THOMPSON CREEK

HYDETOWN BOROUGH, Crawford, PA

Built 1950 Load: 37.2 t ADT: 410

T-609 AGNEW ROAD

Fair

Over: INLET RUN

SUMMIT TOWNSHIP, Crawford, PA

Built 1992 Load: 37.2 t ADT: 55

SR 1011

Fair

Over: CONODOQUINET CREEK

1.5 MI.S. OF GOOD HOPE, Cumberland, PA

Built 1984 Load: 37.2 t ADT: 3,408

SR 3001 BALT.RD.

Fair

Over: I-81; SR 0081

1.75 MI.S. OF EXIT 10, Cumberland, PA

Built 1963 Load: 37.2 t ADT: 5,849

SHADY ROAD T-362

Fair

Over: PAXTON RUN

1.5 S NEWBURG/PAXTON RUN, Cumberland, PA

Built 1940 Load: 37.2 t ADT: 50

EAST LOUTHER ST.

Fair

Over: LETORT SPRING RUN

CARLISLE BOR/LETORT SPRGS, Cumberland, PA

Built 1978 Load: 37.2 t ADT: 3,000

US 22; SR 0022

Fair

Over: CLARKS RUN

TWO MI N OF DAUPHIN, Dauphin, PA

Built 1938 Load: 37.2 t ADT: 47,032

US 22 EB; SR 0022

Fair

Over: PAXTON CR & PARK TRAIL

INTER OF I81 & US22, Dauphin, PA

Built 1977 Load: 37.2 t ADT: 19,291

I-81; SR 0081

Fair

Over: MANADA CREEK

1 MI. N.E. MANADA, Dauphin, PA

Built 1967 Load: 37.2 t ADT: 50,539

I-83; SR 0083

Fair

Over: SR 3012

.5 MI.E. OF LAWNTON, Dauphin, PA

Built 1970 Load: 37.2 t ADT: 53,381

PA 443; SR 0443

Fair

Over: FISHING CREEK

8 MI. N.E. FT.HUNTER, Dauphin, PA

Built 1995 Load: 37.2 t ADT: 1,556

SR 3012

Fair

Over: TRIB SPRING CREEK

DERRY STREET, Dauphin, PA

Built 1938 Load: 37.2 t ADT: 11,989

Showing 6,801-6,850 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.