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

NORTH BRANCH RD

Fair

Over: NORTH BRANCH ROBINSON RN

200 S.W. OF SR 3051, Allegheny, PA

Built 1934 Load: 95.3 t ADT: 3,743

SR 4028

Fair

Over: OVER SOUTH CREEK

VILLAGE OF GILLETT, Bradford, PA

Built 1958 Load: 95.3 t ADT: 167

SR1029

Fair

Over: NORTH BRANCH BEAR CREEK

SE OF EAU CLAIRE, Butler, PA

Built 1993 Load: 95.3 t ADT: 175

SR 1023

Fair

Over: CONLEY CREEK

2 MI N.W. CARSONVILLE, Dauphin, PA

Built 1941 Load: 95.3 t ADT: 195

SR 15 NBL

Fair

Over: old 15

1.6 MI NE OF TIOGA BORO, Tioga, PA

Built 1992 Load: 95.3 t ADT: 5,141

SR 504-PA 504

Fair

Over: SIX MILE RUN

SIX MILE E. PHILIPSBURG, Centre, PA

Built 1998 Load: 95.3 t ADT: 558

RAMP K SPR& WB BLV

Fair

Over: LAUREL RUN

WB RAMP K SPUR & WB BLV, Luzerne, PA

Built 1991 Load: 97.1 t ADT: 4,400

US 222

Fair

Over: IRON RUN

SR 222;RAMPS C&D, Lehigh, PA

Built 2005 Load: 97.1 t ADT: 40,766

STREET ROAD

Fair

Over: PIDCOCK CREEK

BUCKINGHM;SOLEBURY2925B10, Bucks, PA

Built 1954 Load: 98.0 t ADT: 500

T-374 ANDREWS RUN

Fair

Over: OVER ANDREWS RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1950 Load: 98.0 t ADT: 75

Red Lion Road

Fair

Over: Byberry Creek

W of Waldemire 20C03, Philadelphia, PA

Built 1962 Load: 98.0 t ADT: 4,600

SR 80-I 80

Fair

Over: RUMBERGER FORESTRY RD

1 MILE WEST EXIT 192, Clinton, PA

Built 1970 Load: 98.9 t ADT: 7,976

EAST 4TH STREET

Fair

Over: RIDLEY CREEK

1MI SO OF PA-291 35-E1, Delaware, PA

Built 1930 Load: 98.9 t ADT: 343

SR 8007

Fair

Over: RUFF CREEK

WASHINGTON TOWNSHIP, Greene, PA

Built 1966 Load: 98.9 t ADT: 650

PA 895

Fair

Over: SWATARA CREEK

PINE GROVE BORO LINE, Schuylkill, PA

Built 1934 Load: 98.9 t ADT: 3,359

US 30; SR 0030

Fair

Over: SWIFT RUN

2 1/2 MI.W. OF NEW OXFORD, Adams, PA

Built 1929 Load: 99.8 t ADT: 11,922

SR 0019

Fair

Over: SR 0279

IVORY AVE INTERSECTION, Allegheny, PA

Built 1986 Load: 99.8 t ADT: 2,339

RAYMOND SHAFER HWY

Fair

Over: MOON RUN

I-79 SB1.4 MI N OF SR 60, Allegheny, PA

Built 1973 Load: 99.8 t ADT: 22,032

SR 0079 NB SB

Fair

Over: MOON RUN

200 FT NORTH OF SR 51, Allegheny, PA

Built 1972 Load: 99.8 t ADT: 50,492

PENN LINCOLN PY

Fair

Over: CAMPBELLS RUN

200S.W.CAMPBELLS RUN RD., Allegheny, PA

Built 1972 Load: 99.8 t ADT: 79,056

SR 885

Fair

Over: CLIFF

300EAST OF LIBERTY BRIDG, Allegheny, PA

Built 1981 Load: 99.8 t ADT: 28,222

BEN AVON LOWRIE RD

Fair

Over: LOWRIES RUN

750 S.W. OF SR 0279, Allegheny, PA

Built 1988 Load: 99.8 t ADT: 7,469

WILDWOOD RD

Fair

Over: CROUSE RUN

0.5MI.W.OF INTER.W/TR 8, Allegheny, PA

Built 1986 Load: 99.8 t ADT: 9,184

PA TPK (I-76)

Fair

Over: SHAFERS RUN

NEAR DORSEYVILLE, Allegheny, PA

Built 1952 Load: 99.8 t ADT: 33,531

PA TPK (I-76)

Fair

Over: SR 2084 Milltown Road

NEAR MILLTOWN, Allegheny, PA

Built 1952 Load: 99.8 t ADT: 38,689

RAMP A

Fair

Over: MOON RUN

200SOUTH EAST OF SR 0051, Allegheny, PA

Built 1970 Load: 99.8 t ADT: 7,679

PENNSYLVANIA AV

Fair

Over: SMALL RUN

400 S.E. OF SR 4013, Beaver, PA

Built 1953 Load: 99.8 t ADT: 10,074

GREEN GARDEN RD

Fair

Over: TRAMPMILL RUN

300E.OF INTER.W/TR60, Beaver, PA

Built 1969 Load: 99.8 t ADT: 16,165

T677 Schoolhouse H

Fair

Over: SIX MILE RUN

RIDDLESBURG, Bedford, PA

Built 1977 Load: 99.8 t ADT: 62

PA TPK (RAMP G)

Fair

Over: SR 0030; S-9370

BREEZEWOOD, Bedford, PA

Built 1970 Load: 99.8 t ADT: 6,000

US 422(LR 793)

Fair

Over: WYOMISSING CREEK

READING BYPASS, Berks, PA

Built 1964 Load: 99.8 t ADT: 82,168

CO.WELFARE ROAD

Fair

Over: PLUM CREEK

1 MI.NO.OF STATE HILL, Berks, PA

Built 1936 Load: 99.8 t ADT: 979

T510 SCHOCH HOLLOW

Fair

Over: SCHELL RUN

.5 MI.W.OF TYRONE, Blair, PA

Built 1975 Load: 99.8 t ADT: 107

SR 2011

Fair

Over: BOWMAN CREEK

2 MILE EAST OF LADDSBURG, Bradford, PA

Built 1971 Load: 99.8 t ADT: 521

SR 3012

Fair

Over: TRIBUTARY TOWANDA CREEK

VILLAGE OF GROVER, Bradford, PA

Built 1914 Load: 99.8 t ADT: 590

PA TPK (I-76)

Fair

Over: TRIB. TO BRUSH CREEK

EAST OF CRANBERRY INTG, Butler, PA

Built 1952 Load: 99.8 t ADT: 27,341

T-407 LEISIE ROAD

Fair

Over: GLADE RUN

BTW T423 & T388, Butler, PA

Built 1926 Load: 99.8 t ADT: 300

SR 872-PA 872

Fair

Over: BROOKS RUN

8 MI NE SINNEMAHONING, Cameron, PA

Built 1954 Load: 99.8 t ADT: 672

SR 2019(LR 163 RP)

Fair

Over: TRIB.TO LEHIGH RIVER

BOWMANSTOWN(BANK ST.), Carbon, PA

Built 1962 Load: 99.8 t ADT: 4,011

SR 80-I 80

Fair

Over: ROCK RUN

4 MI W SNOWSHOE, Centre, PA

Built 1966 Load: 99.8 t ADT: 15,444

SR 80-I 80

Fair

Over: HOLT HOLLOW RUN

2 MI W MILESBURG, Centre, PA

Built 1967 Load: 99.8 t ADT: 7,159

SR 80-I 80

Fair

Over: HOLT HOLLOW RUN

1 MI NW MILESBURG, Centre, PA

Built 1966 Load: 99.8 t ADT: 11,747

SR 322-US 322

Fair

Over: SPRING CREEK

BOALSBURG, Centre, PA

Built 1971 Load: 99.8 t ADT: 11,372

T-537 SHUNK RD.

Fair

Over: SINKING CREEK

0.2 MI SE OF INT SR 2008, Centre, PA

Built 1977 Load: 99.8 t ADT: 30

TOWNSHIP LINE ROAD

Fair

Over: BRANCH OF VALLEY CREEK

100 W of PA 100 3472-J4, Chester, PA

Built 2001 Load: 99.8 t ADT: 525

SR 80-I 80

Fair

Over: STONY RUN

3 MI W EXIT 111, Clearfield, PA

Built 1970 Load: 99.8 t ADT: 9,325

SR 80-I 80

Fair

Over: MORAVIAN RUN

5 MI W EXIT 133, Clearfield, PA

Built 1967 Load: 99.8 t ADT: 16,651

SR 80-I 80

Fair

Over: ALDER RUN

2 MI W EXIT 133, Clearfield, PA

Built 1967 Load: 99.8 t ADT: 8,175

SR 80-I 80

Fair

Over: BROWN RUN

5 MI E EXIT 133, Clearfield, PA

Built 1968 Load: 99.8 t ADT: 7,860

SR 153-PA 153

Fair

Over: MORGAN RUN

2 MI SE DIMELING, Clearfield, PA

Built 1969 Load: 99.8 t ADT: 2,301

Showing 12,301-12,350 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.