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

SWEDESFORD ROAD

Fair

Over: CONRAIL(ABANDONED)

CHESTER VALLEY 23B07, Chester, PA

Built 1969 Load: 34.5 t ADT: 9,048

BUCKWALTER ROAD

Fair

Over: STONY CREEK

NEAR KIMBERTON GOLF 7G12, Chester, PA

Built 1931 Load: 34.5 t ADT: 868

MARSHALL BRIDGE RD

Fair

Over: RED CLAY CREEK

NR.TRAFFIC RTE.82 47H10, Chester, PA

Built 1936 Load: 34.5 t ADT: 1,382

BALTIMORE PIKE

Fair

Over: BR.W.BR BIG ELK CR.

2.MI.TO ELKDALE 44B11, Chester, PA

Built 1924 Load: 34.5 t ADT: 4,935

OLD BALTIMORE PIKE

Fair

Over: MIDDLE BR WHITE CLAY CR

ON TOWNSHIP LINE 45G08, Chester, PA

Built 1934 Load: 34.5 t ADT: 6,747

WEST CYPRESS ST

Fair

Over: WEST BR. RED CLAY CREEK

1MI.S.KENNETT SQ. 47D05, Chester, PA

Built 1940 Load: 34.5 t ADT: 5,734

MANSION ROAD

Fair

Over: SOUTH BR. FRENCH CREEK

NR. READING FURNACE 11H1, Chester, PA

Built 1904 Load: 34.5 t ADT: 261

PIKELAND ROAD T488

Fair

Over: PICKERING CREEK

WEST PIKELAND TWP. 14A11, Chester, PA

Built 1908 Load: 34.5 t ADT: 474

PA TPK (I-76)

Fair

Over: T-443 (Howell Road)

NEAR CEDAR HOLLOW, Chester, PA

Built 1950 Load: 34.5 t ADT: 47,120

COLLAMER ROAD

Fair

Over: MUDDY RUN

1500 S.HOMEVILLE 3797-C3, Chester, PA

Built 1983 Load: 34.5 t ADT: 300

SR2009

Fair

Over: CHERRY RUN

CHERRY RUN CAMP NO.2, Clarion, PA

Built 1938 Load: 34.5 t ADT: 555

SR 80-I 80

Fair

Over: TOWNSHIP ROAD 399

2 MI E EXIT 97, Clearfield, PA

Built 1967 Load: 34.5 t ADT: 8,789

ON TSR 361

Fair

Over: SR 80-I 80

3 MI E EXIT 101, Clearfield, PA

Built 1970 Load: 34.5 t ADT: 137

SR 219-US 219

Fair

Over: W BR SUSQUEHANNA RIVER

BURNSIDE BORO, Clearfield, PA

Built 1986 Load: 34.5 t ADT: 884

SR 2030

Fair

Over: ALDER RUN

ALLPORT, Clearfield, PA

Built 1930 Load: 34.5 t ADT: 2,231

T-353 BUHITE RD

Fair

Over: EAST BR MAHONING CREEK

1600 FT EAST OF SR 3009, Clearfield, PA

Built 1904 Load: 34.5 t ADT: 40

T-389 PARADISE RD

Fair

Over: MOOSE CREEK

30 FT EAST OF SR 322, Clearfield, PA

Built 1969 Load: 34.5 t ADT: 50

T-372 PLATT RD

Fair

Over: SANDY LICK CREEK

190 FT SE OF SR 255, Clearfield, PA

Built 1930 Load: 34.5 t ADT: 190

SR 220-US 220

Fair

Over: T-375

1 MILE EAST CASTANEA, Clinton, PA

Built 1976 Load: 34.5 t ADT: 8,448

SR 220-US 220

Fair

Over: ACCESS ROAD/NORFOLK & S

1 MILE EAST MCELHATTAN, Clinton, PA

Built 1976 Load: 34.5 t ADT: 7,952

ON TSR 430

Fair

Over: PLUM RUN

2 MILE SOUTH SWISSDALE, Clinton, PA

Built 1969 Load: 34.5 t ADT: 188

ON TSR 338

Fair

Over: CEDAR CREEK

2 MILE SW CEDAR SPRINGS, Clinton, PA

Built 1947 Load: 34.5 t ADT: 655

SR 2024

Fair

Over: BEECH CREEK

2 MI NORTHEAST BEECH CRK, Clinton, PA

Built 1989 Load: 34.5 t ADT: 431

S.R. 239

Fair

Over: OVER WEST CREEK

2 MILES NORTH OF BENTON, Columbia, PA

Built 1934 Load: 34.5 t ADT: 510

SR 4006

Fair

Over: OVER I-80 EB & WB LANES

3 MILES W OF BUCKHORN, Columbia, PA

Built 1965 Load: 34.5 t ADT: 1,121

4009-MILLVILLE RD

Fair

Over: FISHING CREEK

TOWN OF BLOOMSBURG, Columbia, PA

Built 1930 Load: 34.5 t ADT: 6,032

SR 2101 TERRACE ST

Fair

Over: OVER SR 6 FRENCH CK.PWY.

WEST MEAD TOWNSHIP, Crawford, PA

Built 1973 Load: 34.5 t ADT: 178

SR 77 STATE STREET

Fair

Over: OVER TEMPLE RUN

RICHMOND TOWNSHIP, Crawford, PA

Built 1958 Load: 34.5 t ADT: 1,831

SR 4007 WATSON RUN

Fair

Over: OVER WATSON RUN

VERNON TOWNSHIP, Crawford, PA

Built 1963 Load: 34.5 t ADT: 411

CHERRY STREET

Fair

Over: OVER MILL RUN

CHERRY STREET MEADVILLE, Crawford, PA

Built 1906 Load: 34.5 t ADT: 1,500

I-81 NB; SR 0081

Fair

Over: SR 3015; MT. ROCK RD.

6 MI.S. CARLISLE, Cumberland, PA

Built 1963 Load: 34.5 t ADT: 20,565

I-81 SB; SR 0081

Fair

Over: SR 3015; MT. ROCK RD.

PENN TWP, Cumberland, PA

Built 1963 Load: 34.5 t ADT: 20,276

I-81 SB; SR 0081

Fair

Over: WALNUT BOTTOM RD.SR 3023

COLLEGE ST.;EXIT 13, Cumberland, PA

Built 1962 Load: 34.5 t ADT: 23,576

SR 641 LR 507

Fair

Over: PA TPK (I-76)

SILVER SPRING TWP, Cumberland, PA

Built 1949 Load: 34.5 t ADT: 11,666

LR21069 SR2021

Fair

Over: PA TPK (I-76)

LOWER ALLEN TWP, Cumberland, PA

Built 1949 Load: 34.5 t ADT: 5,997

T-646

Fair

Over: PA TPK (I-76)

LOWER ALLEN TWP, Cumberland, PA

Built 1950 Load: 34.5 t ADT: 200

BEACON HILL ROAD

Fair

Over: YELLOW BREECHES CREEK

.4NEI83 &PTC#18/YELLW BR, Cumberland, PA

Built 1970 Load: 34.5 t ADT: 1,446

US 22/322 EB;SR 22

Fair

Over: SUSQ R; SR 0147 SB RP

CLARKS FERRY, Dauphin, PA

Built 1986 Load: 34.5 t ADT: 26,191

T-505

Fair

Over: I-81; SR 0081

PAXTONIA, Dauphin, PA

Built 1969 Load: 34.5 t ADT: 3,759

I-83 SB; SR 0083

Fair

Over: NORFOLK SOUTHERN

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 Load: 34.5 t ADT: 24,637

GOOSE VALLEY RD T5

Fair

Over: TRIB PAXTON CREEK

1 SW LNGLSTN/TR PAXTN CR, Dauphin, PA

Built 1930 Load: 34.5 t ADT: 750

INTERSTATE 95(NB)

Fair

Over: CHESTER PIKE

CHESTER PIKE 43K01, Delaware, PA

Built 1975 Load: 34.5 t ADT: 43,587

INTERSTATE 95(SB)

Fair

Over: CHESTER PIKE

CHESTER PIKE 43K01, Delaware, PA

Built 1975 Load: 34.5 t ADT: 42,682

INTERSTATE 95(NB)

Fair

Over: SELLERS AVENUE

.2MI.N.STEWART AVE.44C01, Delaware, PA

Built 1975 Load: 34.5 t ADT: 76,892

PENNELL ROAD

Fair

Over: SEPTA

GLEN RIDDLE STA. 33F09, Delaware, PA

Built 1963 Load: 34.5 t ADT: 11,407

KERLIN STREET

Fair

Over: CHESTER CREEK

UPLAND BORO LINE 43E04, Delaware, PA

Built 1922 Load: 34.5 t ADT: 16,100

RAMP 1A (SB)

Fair

Over: RELOCATED CRUM CREEK

MACDADE BLVD.INTCH.43J01, Delaware, PA

Built 1987 Load: 34.5 t ADT: 2,855

SR 66-PA 66

Fair

Over: S BR TIONESTA CREEK

JAMES CITY, Elk, PA

Built 1932 Load: 34.5 t ADT: 1,657

SR 219-US 219

Fair

Over: JOHNSON RUN

CHALLENGE, Elk, PA

Built 1965 Load: 34.5 t ADT: 6,582

SR 20 BUFFALO ROAD

Fair

Over: OVER SIX MILE CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1954 Load: 34.5 t ADT: 12,344

Showing 5,751-5,800 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.