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

UNION AVENUE

Poor

Over: SEPTA

CHELTENHAM 3370K10, Montgomery, PA

Built 1923 Load: 56.2 t ADT: 1,609

SR 2036

Poor

Over: LITTLE PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1928 Load: 56.2 t ADT: 198

FREEDOM CRIDERS RD

Poor

Over: PINE RUN

1 MI.WEST OF SR 0989, Beaver, PA

Built 1930 Load: 57.2 t ADT: 7,680

SR 173 ADAMS ST.

Poor

Over: OVER LAKE CREEK

WAYNE TOWNSHIP, Crawford, PA

Built 1935 Load: 57.2 t ADT: 1,442

I-81 NB; SR 0081

Poor

Over: PA TURNPIKE

I-81N.B. OVER TURNPIKE, Cumberland, PA

Built 1963 Load: 57.2 t ADT: 27,884

I-81 SB; SR 0081

Poor

Over: PA TURNPIKE

I-81S.B. OVER TURNPIKE, Cumberland, PA

Built 1963 Load: 57.2 t ADT: 26,923

SR3031

Poor

Over: LICK RUN

NEAR COOLSPRING, Jefferson, PA

Built 1954 Load: 57.2 t ADT: 256

BRIDGE 811 T-508

Poor

Over: OVER SHENANGO RIVER TRIB

SCOTT RD.HEMPFIELD TWP., Mercer, PA

Built 1957 Load: 57.2 t ADT: 154

SCHUYLKILL EXPWAY.

Poor

Over: WAVERLY ROAD(T669)

2MI.WEST GLADWYNE 35K06, Montgomery, PA

Built 1951 Load: 57.2 t ADT: 85,964

SR 0848 TR 848

Poor

Over: SR 0081 I-81 NB & SB

NEW MILFD TP I-81 EXT 219, Susquehanna, PA

Built 1961 Load: 57.2 t ADT: 564

CHESTNUT ROAD

Poor

Over: S. BRANCH OF MAPLE CREEK

MAPLE CREEK NUMBER 7, Washington, PA

Built 1928 Load: 57.2 t ADT: 420

ELIZABETH ST

Poor

Over: CSX RR GLOSTER ST

029 Elizabeth St Bridge, Allegheny, PA

Built 1900 Load: 58.1 t ADT: 3,000

SR 4027

Poor

Over: OVER BUCK CREEK

2MI SW OF BENTLEY CREEK, Bradford, PA

Built 1938 Load: 58.1 t ADT: 221

THWING STREET

Poor

Over: MILL CREEK

ST.CLAIR THWING ST., Schuylkill, PA

Built 1926 Load: 58.1 t ADT: 500

Cayuga Street

Poor

Over: Abandoned CONRAIL

W of 5th Street 18A13, Philadelphia, PA

Built 1930 Load: 58.1 t ADT: 1,500

BRIDGE ONE LANE

Poor

Over: DELAWARE CANAL

500 FT EAST OF SR 32, Bucks, PA

Built 1977 Load: 59.0 t ADT: 60

SR 3025

Poor

Over: YORK RUN

GEORGES TOWNSHIP, Fayette, PA

Built 1931 Load: 59.0 t ADT: 505

SR 1006

Poor

Over: GLADE RUN

CUMBERLAND TOWNSHIP, Greene, PA

Built 1926 Load: 59.0 t ADT: 518

SR 0191 TR 191

Poor

Over: MIDDLE CR & ABANDONED RR

CHERRY RG TP .1M S SR3024, Wayne, PA

Built 1943 Load: 59.0 t ADT: 3,856

ROCK SPRINGS RD

Poor

Over: BEAVER RUN

0.9 MI NORTH OF RT 22, Westmoreland, PA

Built 1920 Load: 59.0 t ADT: 60

SR 1008

Poor

Over: CODORUS CREEK

CODORUS FURNACE, York, PA

Built 1975 Load: 59.0 t ADT: 1,309

CLINTON AVE

Poor

Over: N. BR. OF ROBINSON RUN

2000N.W.OF SR 3048, Allegheny, PA

Built 1942 Load: 59.9 t ADT: 9,677

SR 2031

Poor

Over: CEDAR CREEK

LOWER ALLEN TWP, Cumberland, PA

Built 1952 Load: 59.9 t ADT: 2,325

SR 1010

Poor

Over: PUMPKIN RUN

RICES LANDING BOROUGH, Greene, PA

Built 1914 Load: 59.9 t ADT: 433

TOWNSHIP ROAD 329

Poor

Over: WADES RUN

MOUNT MORRIS, Greene, PA

Built 1982 Load: 59.9 t ADT: 50

KING THORNE RD 355

Poor

Over: WILSON RUN

83 FT SO INT T355 & T479, Westmoreland, PA

Built 1979 Load: 59.9 t ADT: 54

SR 3001

Poor

Over: SR 0006 TR 6

LACEYVILLE BORO OVER TR 6, Wyoming, PA

Built 1965 Load: 59.9 t ADT: 439

PA 915

Poor

Over: ROARING RUN

3.0 MILE NORTH OF I-70, Fulton, PA

Built 1937 Load: 60.8 t ADT: 183

SR0949

Poor

Over: SR0080 EB&WB

CORSICA, Jefferson, PA

Built 1960 Load: 60.8 t ADT: 625

T325 MARVINDALE RD

Poor

Over: MARVIN CREEK

1000 FT WEST OF US 6, McKean, PA

Built 1938 Load: 60.8 t ADT: 30

T-855 W RIDGE RD

Poor

Over: CONOY CREEK

250 FT SW OF T-324, Lancaster, PA

Built 1982 Load: 61.7 t ADT: 150

SR 58 MAIN STREET

Poor

Over: OVER WOLF CREEK

GROVE CITY BOROUGH, Mercer, PA

Built 1967 Load: 61.7 t ADT: 9,802

SR 1013 (LR 53036)

Poor

Over: READING/NORTHERN RR

0.1 MI. S. OF PA 54, Schuylkill, PA

Built 1912 Load: 61.7 t ADT: 1,570

SPROUL ROAD

Poor

Over: US-1 BYPASS

SPRINGFIELD TWP 3587D10, Delaware, PA

Built 1977 Load: 62.6 t ADT: 23,771

US 11; SR 0011

Poor

Over: Norfolk Southern RR

SHIPPENSBURG, Franklin, PA

Built 1937 Load: 62.6 t ADT: 9,489

SR 2011

Poor

Over: TRIB MESHOPPEN CREEK

BRDGEWATR TP 1M S SR 2059, Susquehanna, PA

Built 1985 Load: 62.6 t ADT: 43

SR 3009

Poor

Over: TENMILE CREEK

SOUTH FRANKLIN TOWNSHIP, Washington, PA

Built 1931 Load: 62.6 t ADT: 242

SR 3017

Poor

Over: SCHAEFER RUN

SR 3017 TREXLERTOWN, Lehigh, PA

Built 2005 Load: 62.6 t ADT: 5,431

SR 1001

Poor

Over: R. J. CORMAN RAILROAD

.75 MI.W.OF LORETTO BORO., Cambria, PA

Built 1962 Load: 63.5 t ADT: 2,601

SR 512 (LR 165)

Poor

Over: MARTINS CREEK

MARKET STREET, Northampton, PA

Built 1911 Load: 63.5 t ADT: 6,557

T-460 SHAFFER R.RD

Poor

Over: OVER SHAFFER RUN

SUGAR CREEK BOROUGH, Venango, PA

Built 2003 Load: 63.5 t ADT: 300

SR 4009

Poor

Over: Eliminated RR Tracks

DILLERVILLE, Lancaster, PA

Built 1946 Load: 64.4 t ADT: 15,708

Dillerville Rd

Poor

Over: NS RR

Dillerville, Lancaster, PA

Built 1946 Load: 64.4 t ADT: 15,708

BRIDGE 1201 T-884

Poor

Over: OVER MILL CREEK

CROUSER SCHOOL MILLCREEK, Mercer, PA

Built 1908 Load: 64.4 t ADT: 43

THOMPSON HOLLOW RD

Poor

Over: BUFFALO RUN

175 S.W. OF SR 3089, Westmoreland, PA

Built 1950 Load: 64.4 t ADT: 250

T-433 Hillside Dr

Poor

Over: Bens Creek

1.5mi North of Thomas Mil, Somerset, PA

Built 1950 Load: 64.4 t ADT: 50

SR 0296 TR 296

Poor

Over: VAN AUCKEN CREEK

WAYMART BO .1 M S SR 3030, Wayne, PA

Built 1952 Load: 65.3 t ADT: 3,535

Pine Road

Poor

Over: SEPTA (Newtown Branch)

N of Rhawn St 18H02, Philadelphia, PA

Built 1964 Load: 65.3 t ADT: 8,300

SR 2001

Poor

Over: DINGMANS CREEK

DELAWARE TWP .4M S SR2004, Pike, PA

Built 1939 Load: 65.8 t ADT: 1,290

EAST FIRST STREET

Poor

Over: HAY CREEK

BET. WATER & CINDER STS., Berks, PA

Built 1950 Load: 66.2 t ADT: 3,600

Showing 23,201-23,250 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.