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

US 422 (LR 793)

Fair

Over: TWP RD 443

READING BYPASS, Berks, PA

Built 1963 Load: 27.2 t ADT: 44,281

SR 1021(LR 06134)

Fair

Over: SACONY CREEK

NEAR JCT US222, Berks, PA

Built 1972 Load: 27.2 t ADT: 5,276

PA 12

Fair

Over: SR 2007 BERNHART CREEK

0.25 MI.E.OF READING, Berks, PA

Built 1980 Load: 27.2 t ADT: 39,143

SR 0222 NB(LR1035)

Fair

Over: SR 1004(LR 06043)

0.7 MI N OF PA61, Berks, PA

Built 1974 Load: 27.2 t ADT: 16,005

US 222 (LR 1035)

Fair

Over: SR 1004(LR 06043)

0.7 MI.N.OF PA61, Berks, PA

Built 1974 Load: 27.2 t ADT: 15,843

WATER STREET

Fair

Over: FURNACE CREEK

NORTH OF LAKE ROAD, Berks, PA

Built 1973 Load: 27.2 t ADT: 849

HOCH ROAD

Fair

Over: MANATAWNY CREEK

N.OF SR 73 AT PLEASENTVIL, Berks, PA

Built 1950 Load: 27.2 t ADT: 800

DECK ROAD

Fair

Over: TRIB LITTLE SWATARA CK

0.7 MI.E.OF PA 501, Berks, PA

Built 1951 Load: 27.2 t ADT: 220

OLD MILL ROAD

Fair

Over: WYOMISSING CREEK

AT WYOMISSING POOL, Berks, PA

Built 1959 Load: 27.2 t ADT: 2,000

SR 3009

Fair

Over: BLAIR GAP RUN

2.25 MI.W.OF DUNCANSVILLE, Blair, PA

Built 1954 Load: 27.2 t ADT: 509

SR 0187

Fair

Over: WYSOX CREEK

1 MI S. OF NORTH ORWELL, Bradford, PA

Built 1931 Load: 27.2 t ADT: 1,168

T-317 ATHENS TWP#2

Fair

Over: MURRAY CREEK

0.6 MI. W. GREENS LANDING, Bradford, PA

Built 1977 Load: 27.2 t ADT: 300

INTERSTATE 295 WB

Fair

Over: NEW FALLS ROAD/ 3262-H10

1MI.N.NEWPORTVILLE 42G06, Bucks, PA

Built 1972 Load: 27.2 t ADT: 25,103

INTERSTATE 295 EB

Fair

Over: CSX;SEPTA-TRENTON BRANCH

2MI.N.LANGHORNE 37J05, Bucks, PA

Built 1972 Load: 27.2 t ADT: 23,069

STATE ROAD

Fair

Over: CSX (Leased fromSEPTA )

.7MI.EAST TELFORD 20E06, Bucks, PA

Built 1967 Load: 27.2 t ADT: 7,996

DOYLESTWN BYPAS NB

Fair

Over: PEBBLE HILL ROAD

1.2MI.EAST PA-611 23C13, Bucks, PA

Built 1973 Load: 27.2 t ADT: 7,821

DOYLESTWN BYPAS SB

Fair

Over: PEBBLE HILL ROAD

1.2MI.EAST PA-611 23C13, Bucks, PA

Built 1973 Load: 27.2 t ADT: 7,643

TRAFFIC ROUTE 309

Fair

Over: LR 153 SOUTHBOUND

N.OF SELLERSVILLE 14A08, Bucks, PA

Built 1967 Load: 27.2 t ADT: 44,227

NEWTOWN BY-PASS

Fair

Over: SEPTA; ACCESS ROAD

.25MI.W.OF LR 152 36K03, Bucks, PA

Built 1974 Load: 27.2 t ADT: 34,016

DOYLESTWN BYPAS SB

Fair

Over: SAW MILL ROAD(T401)

.4MI.SOUTH LR156 23A07, Bucks, PA

Built 1973 Load: 27.2 t ADT: 6,375

TOHICKON HILL ROAD

Fair

Over: GEDDES RUN

IN POINT PLEASANT 17K04, Bucks, PA

Built 1906 Load: 27.2 t ADT: 288

BRISTOL ROAD

Fair

Over: NESHAMINY CREEK

NEW BRITAIN BOR. 28C04, Bucks, PA

Built 1967 Load: 27.2 t ADT: 7,336

BRISTOL-OXFORD VAL

Fair

Over: MILL CREEK

.5MI.E.HULMEVILLE 42K06, Bucks, PA

Built 1954 Load: 27.2 t ADT: 15,556

MINSI TRAIL

Fair

Over: BRANCH OF MORRIS RUN

.5MI.S.ROUTE 113 21E01, Bucks, PA

Built 1973 Load: 27.2 t ADT: 2,172

BLUE SCHOOL ROAD

Fair

Over: MORRIS RUN

.3MI.WEST TR-313 15E11, Bucks, PA

Built 1902 Load: 27.2 t ADT: 506

PA TPK (I-476)

Fair

Over: SCHMOUTS CREEK

WEST OF TRUMBAUERSVILLE, Bucks, PA

Built 1955 Load: 27.2 t ADT: 50,307

SR 0079 SB

Fair

Over: T-969 EHRMAN RD

EHRMAN SB, Butler, PA

Built 1968 Load: 27.2 t ADT: 21,080

SR0173

Fair

Over: TRIB OF WOLF CREEK

ARMSTRONG, Butler, PA

Built 1936 Load: 27.2 t ADT: 4,168

T-427 WINDY ROAD

Fair

Over: SLIPPERY ROCK CREEK

0.6 MI NW OF BRANCHTON RD, Butler, PA

Built 1926 Load: 27.2 t ADT: 100

T-504 SOUTH ERICO

Fair

Over: SEATON CREEK

1.2 MI S OF SR 0058, Butler, PA

Built 1992 Load: 27.2 t ADT: 50

T302 MT AIRY DRIVE

Fair

Over: US 219

2.0 MILE NORTH OF TR 756, Cambria, PA

Built 1965 Load: 27.2 t ADT: 2,500

T417 TOWER ROAD

Fair

Over: US 219

T-417 AT SR 8019, Cambria, PA

Built 1965 Load: 27.2 t ADT: 716

PA 271 MAPLE AVE

Fair

Over: L.CONEMA.RIV;NORFOLK STH

0.7 MILE SOUTH OF SR 3029, Cambria, PA

Built 1958 Load: 27.2 t ADT: 4,756

T346 Berwick Road

Fair

Over: LITTLE PAINT CREEK

1 MI.NE.OF SCALP LEVEL, Cambria, PA

Built 1991 Load: 27.2 t ADT: 500

T-356 WAS T-355

Fair

Over: UPPER JERRY RUN

1.5 MILES SE OF SR 2001, Cameron, PA

Built 1930 Load: 27.2 t ADT: 20

I80 WB (LR1009)

Fair

Over: RAMPS G&H SR 8004

EXIT 277(42)TPKE-PA940, Carbon, PA

Built 1965 Load: 27.2 t ADT: 8,298

PA 940 (LR408)

Fair

Over: LEHIGH RIVER

WHITE HAVEN- E.SIDE BORO, Carbon, PA

Built 1989 Load: 27.2 t ADT: 2,761

SR 4010

Fair

Over: HAZEL CREEK

WEATHERLY, Carbon, PA

Built 1955 Load: 27.2 t ADT: 1,923

SR 8022

Fair

Over: SR 99 - I 99

VALLEY VISTA INTERCHANGE, Centre, PA

Built 1970 Load: 27.2 t ADT: 3,487

CHURCH ROAD

Fair

Over: BRANCH BUCK RUN

NR.MOBIL GAS STA. 27F9, Chester, PA

Built 1985 Load: 27.2 t ADT: 13,564

US 202

Fair

Over: RAMPS Q & R AT 422

TREDYFFRIN 25A2, Chester, PA

Built 1966 Load: 27.2 t ADT: 121,077

SWEDESFORD ROAD

Fair

Over: RAMP F TO US 202 N.B.

PAOLI EXIT US 202 24C04, Chester, PA

Built 1967 Load: 27.2 t ADT: 2,135

KEIM STREET

Fair

Over: POTTSTOWN BY-PASS

SOUTH OF POTTSTOWN 2G13, Chester, PA

Built 1965 Load: 27.2 t ADT: 449

CHATHAM ROAD

Fair

Over: BRANCH WHITE CLAY CREEK

CHATHAM 45J05, Chester, PA

Built 1916 Load: 27.2 t ADT: 1,111

BUCK RUN ROAD

Fair

Over: BUCK RUN

TOWNSHIP LINE 37E03, Chester, PA

Built 1929 Load: 27.2 t ADT: 2,536

SWAN ROAD

Fair

Over: OFFICERS RUN

NEAR ATGLEN 26H09, Chester, PA

Built 1916 Load: 27.2 t ADT: 2,455

CUPOLA ROAD(T376)

Fair

Over: EAST BR BRANDYWINE CREEK

HONEYBROOK TWP. 10E11, Chester, PA

Built 1983 Load: 27.2 t ADT: 1,425

RAMP E OFF SB 202

Fair

Over: US 202 BY-PASS

NORTH OF PAOLI 24C4, Chester, PA

Built 1965 Load: 27.2 t ADT: 7,950

SR0068

Fair

Over: LITTLE LICKING CREEK

LITTLE LICKING NO.1, Clarion, PA

Built 1923 Load: 27.2 t ADT: 3,118

SR0068

Fair

Over: PINEY CREEK

REIDSBURG NO.3, Clarion, PA

Built 1985 Load: 27.2 t ADT: 4,646

Showing 1,951-2,000 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.