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

ROCK RUN ROAD T421

Fair

Over: DOUBLING GAP CREEK

0.15 SW OF SR 233, Cumberland, PA

Built 1986 Load: 63.5 t ADT: 155

INTERSTATE 95

Fair

Over: RAMP E &RAMP F TO BARRY

BARRY BRIDGE RAMPS 43C05, Delaware, PA

Built 1977 Load: 63.5 t ADT: 109,139

SR 949-PA 949

Fair

Over: TOBY CREEK

CARMAN, Elk, PA

Built 1960 Load: 63.5 t ADT: 397

SR 3002 willamson

Fair

Over: MUDDY RUN

1.5MI.NW OF GREENCASTLE, Franklin, PA

Built 1957 Load: 63.5 t ADT: 3,580

PA 643

Fair

Over: I-70

OVER I-70 AT EXIT 156, Fulton, PA

Built 1962 Load: 63.5 t ADT: 243

SR 0081 I-81

Fair

Over: SR 6006 BUSINESS 6

SCRANTON CITY OVER BUS 6, Lackawanna, PA

Built 1958 Load: 63.5 t ADT: 29,825

PA 272; Reading Rd

Fair

Over: US 322; Main St

NW End of Ephrata Boro, Lancaster, PA

Built 1944 Load: 63.5 t ADT: 14,477

Letort Rd

Fair

Over: Trib Ltl Conestoga Creek

0.5 mi. N. of Letort, Lancaster, PA

Built 1985 Load: 63.5 t ADT: 1,776

SR 3036 Franklin .

Fair

Over: STRICKLER RUN

0.75 MI.S. OF T.R. 462, Lancaster, PA

Built 1986 Load: 63.5 t ADT: 853

SR 1005

Fair

Over: OVER PLUNKETTS CREEK

1 MI N OF BARBOURS, Lycoming, PA

Built 1989 Load: 63.5 t ADT: 331

T-762 (CTY BR 101)

Fair

Over: PINE CREEK

VILLAGE OF CEDAR RUN, Lycoming, PA

Built 1977 Load: 63.5 t ADT: 200

SR 358 HADLEY ROAD

Fair

Over: OVER LITTLE SHENANGO TR

OTTER CREEK TOWNSHIP, Mercer, PA

Built 1934 Load: 63.5 t ADT: 3,344

SR 322-US 322

Fair

Over: KISHACOQUILLAS C/ABND RR

REEDSVILLE, Mifflin, PA

Built 1964 Load: 63.5 t ADT: 11,712

SR8026(LR776RMP.)

Fair

Over: SR 80(LR 776)

Waring Drive OVER I-80, Monroe, PA

Built 1953 Load: 63.5 t ADT: 63

P-TOWN X-WAY (EB)

Fair

Over: EGYPT ROAD

OAKS 27E5/3253J9, Montgomery, PA

Built 1982 Load: 63.5 t ADT: 31,365

SR 4018

Fair

Over: INDIAN SPRINGS

1.5 MI SOUTH OF SUNBURY, Northumberland, PA

Built 1911 Load: 63.5 t ADT: 2,891

T860 LAUREL RUN RD

Fair

Over: TRIB. LAUREL HILL CREEK

1.7 MI.NW.OF LAVANSVILLE, Somerset, PA

Built 1934 Load: 63.5 t ADT: 62

T-612 Cranberry Rd

Fair

Over: PA TPK (I-76)

WEST OF BROTHERTON, Somerset, PA

Built 1994 Load: 63.5 t ADT: 200

SR 0328

Fair

Over: OVER WEST CREEK

VILLAGE OF MILLERTON, Tioga, PA

Built 1957 Load: 63.5 t ADT: 1,624

SR 2005

Fair

Over: OVER BLOCKHOUSE CREEK

1 MI S OF LIBERTY, Tioga, PA

Built 1973 Load: 63.5 t ADT: 263

SR 2007

Fair

Over: BLOCKHOUSE CREEK

BORO OF LIBERTY, Tioga, PA

Built 1953 Load: 63.5 t ADT: 553

T-330 LOCEY ROAD

Fair

Over: OVER HARE CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1997 Load: 63.5 t ADT: 125

SR 0088

Fair

Over: FROMAN RUN

UNION TOWNSHIP, Washington, PA

Built 1915 Load: 63.5 t ADT: 6,347

SR 3037

Fair

Over: ENLOW FORK WHEELING CK.

RICHHILL & W. FINLEY TWP., Washington, PA

Built 1938 Load: 63.5 t ADT: 516

SR 0030

Fair

Over: Gibralter Way (T-941)

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1959 Load: 63.5 t ADT: 37,386

I-83; SR 0083

Fair

Over: PA 921; Canal rd.

LR333&LR66002 INTER, York, PA

Built 1957 Load: 63.5 t ADT: 43,104

SQUIRE GRATZ ROAD

Fair

Over: BEAVER CREEK

.9N ROSSVILLE/BEAVER CRK, York, PA

Built 1960 Load: 63.5 t ADT: 91

ACADEMY RD EXT

Fair

Over: INTERSTATE 95

I-95 & ACADEMY RD.3483A03, Philadelphia, PA

Built 1965 Load: 63.5 t ADT: 34,548

Kingsessing Avenue

Fair

Over: SEPTA

E of 49th Street - 36J01, Philadelphia, PA

Built 1942 Load: 63.5 t ADT: 4,800

HOMSTEAD-DUQ RD

Fair

Over: HOMEVILLE CREEK

HV06 HOMEVILLE CR #6, Allegheny, PA

Built 1997 Load: 63.5 t ADT: 4,975

SR 0028 SB

Fair

Over: SR 1034-BULL CREEK ROAD

TARENTUM INTERCHANGE, Allegheny, PA

Built 1984 Load: 64.4 t ADT: 22,583

BUTLER ST

Fair

Over: PINE CREEK

AT AUTOZONE, Allegheny, PA

Built 1927 Load: 64.4 t ADT: 6,515

SR2058

Fair

Over: CARNAHAN RUN

CARNAHAN RUN NO.3, Armstrong, PA

Built 1975 Load: 64.4 t ADT: 81

SR 1009

Fair

Over: YELLOW CREEK

2 MI.N.OF CYPHER, Bedford, PA

Built 1954 Load: 64.4 t ADT: 324

T609 Snyder Crk RD

Fair

Over: POTTER CREEK

2.5 MI.S.BAKERS SUMMIT, Bedford, PA

Built 1987 Load: 64.4 t ADT: 26

US 222 (LR 06150)

Fair

Over: CROSSING DRIVE

222 OVER CROSSING DRIVE, Berks, PA

Built 1977 Load: 64.4 t ADT: 106,484

SR 2016 (LR 06212)

Fair

Over: READING RR(REMOVED)

LAURELDALE BORO(ELIZ.AVE), Berks, PA

Built 1961 Load: 64.4 t ADT: 2,289

SR 2032(LR 06098)

Fair

Over: TRIB.TO SWAMP CREEK

HILL CHURCH ROAD, Berks, PA

Built 1924 Load: 64.4 t ADT: 496

SR 1053

Fair

Over: OVER WAPPASSENING CREEK

WARREN TWP 500FT W LR699, Bradford, PA

Built 1969 Load: 64.4 t ADT: 291

T-506 KOHLMEYER RD

Fair

Over: SLIPPERY ROCK CREEK

0.9 mi S. of SR 4012, Butler, PA

Built 1940 Load: 64.4 t ADT: 100

T-600 LICKING DR

Fair

Over: LICKING CREEK

1.2 MI. W. of SNYDERSBURG, Clarion, PA

Built 1950 Load: 64.4 t ADT: 50

PA TPK (RAMP E)

Fair

Over: US 11 SR 0011

TURNPIKE INTERCHANGE, Cumberland, PA

Built 1950 Load: 64.4 t ADT: 7,610

SR 4005

Fair

Over: SILVER CREEK

JOHNSONBURG BORO, Elk, PA

Built 1957 Load: 64.4 t ADT: 2,173

PA-995

Fair

Over: Back Creek

1. mi. N. of Williamson, Franklin, PA

Built 1985 Load: 64.4 t ADT: 1,102

SR 3007

Fair

Over: PALMER RUN

.6 MI.N.OF NEEDMORE, Fulton, PA

Built 1929 Load: 64.4 t ADT: 224

SR 4031

Fair

Over: RUFF CREEK

WASHINGTON TOWNSHIP, Greene, PA

Built 1915 Load: 64.4 t ADT: 57

SR0259

Fair

Over: LAUREL RUN

EWINGS MILL NO.2, Indiana, PA

Built 1977 Load: 64.4 t ADT: 492

SR 0084 I-84 WB

Fair

Over: SR 2005

JEFFERSON TWP OVER SR2005, Lackawanna, PA

Built 1976 Load: 64.4 t ADT: 7,268

SR 0438 TR 438

Fair

Over: SO BR TUNKHANNOCK CREEK

SCOTT TWP JCT I-81, Lackawanna, PA

Built 1931 Load: 64.4 t ADT: 981

SR 79 NB

Fair

Over: OVER SR 1008 DISTRICT RD

LAKE TOWNSHIP, Mercer, PA

Built 1969 Load: 64.4 t ADT: 5,845

Showing 11,751-11,800 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.