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

SR 2017

Good

Over: OVER WEST MILL CREEK

0.5 MI N OF ROARING BR, Tioga, PA

Built 1963 Load: 32.7 t ADT: 216

SR 2021

Good

Over: OVER TIOGA RIVER

2.5 MI E. OF FALLBROOK, Tioga, PA

Built 1976 Load: 32.7 t ADT: 98

SR 2027

Good

Over: BR OF CANOE CAMP CREEK

2 MI SE OF CANOE CAMP, Tioga, PA

Built 1966 Load: 32.7 t ADT: 460

SR 2031

Good

Over: OVER COREY CREEK

1 MI SE OF MAINESBURG, Tioga, PA

Built 1987 Load: 32.7 t ADT: 369

SR 3009

Good

Over: CHARLESTON CREEK

1.75 MI S OF ROUND TOP, Tioga, PA

Built 1988 Load: 32.7 t ADT: 337

SR 4001

Good

Over: TRIBUTARY POTTER BROOK

1.2 MI S OF POTTER BROOK, Tioga, PA

Built 1965 Load: 32.7 t ADT: 96

SR 4013

Good

Over: TRIBUTARY CROOKED CREEK

2 MI NW OF LITTLE MARSH, Tioga, PA

Built 1962 Load: 32.7 t ADT: 165

SR 4023

Good

Over: TRIB TO CAMP BROOK

BORO OF ELKLAND, Tioga, PA

Built 1977 Load: 32.7 t ADT: 841

SR 4037

Good

Over: BRANCH OF HILLS CREEK

4 MI N OF WHITNEYVILLE, Tioga, PA

Built 1958 Load: 32.7 t ADT: 439

SR 4098

Good

Over: TRIB. TO CROOKED CREEK

1.5 MI N OF SHORTSVILLE, Tioga, PA

Built 1964 Load: 32.7 t ADT: 54

T-820 SULLIVAN TWP

Good

Over: COREY CREEK

1 MI. NW OF MAINESBURG, Tioga, PA

Built 1975 Load: 32.7 t ADT: 50

SR 15 NBL & SBL

Good

Over: OVER WHITE DEER CREEK

VILLAGE OF WHITE DEER, Union, PA

Built 1963 Load: 32.7 t ADT: 15,598

PA 45 (MARKET ST)

Good

Over: BULL RUN

BORO OF LEWISBURG, Union, PA

Built 1960 Load: 32.7 t ADT: 14,358

SR 2009

Good

Over: OVER WINFIELD CREEK

VILLAGE OF WINFIELD, Union, PA

Built 1991 Load: 32.7 t ADT: 2,292

SR 3004

Good

Over: BR OF PENNS CREEK

1 MI E OF MILLMONT, Union, PA

Built 1967 Load: 32.7 t ADT: 1,010

T-498 CTY BR 5

Good

Over: DOG RUN

0.2 MI. E OF NEW COLUMBIA, Union, PA

Built 1984 Load: 32.7 t ADT: 238

SAINT GEORGE ST

Good

Over: LIMESTONE RUN

ST.GEORGE ST. LEWISBURG, Union, PA

Built 1976 Load: 32.7 t ADT: 1,944

SR 8 R.C.FRAME HWY

Good

Over: OVER T-371

VICTORY TOWNSHIP, Venango, PA

Built 1975 Load: 32.7 t ADT: 2,786

SR 8 R C FRAME HWY

Good

Over: OVER T-371

IRWIN TOWNSHIP, Venango, PA

Built 1975 Load: 32.7 t ADT: 2,854

SR 38 EMLENTON ST

Good

Over: OVER ALLGHNY R.& RIVER A

EMLENTON BOROUGH, Venango, PA

Built 1987 Load: 32.7 t ADT: 1,253

SR 27

Good

Over: OVER PINE CREEK BRANCH

SOUTHWEST TOWNSHIP, Warren, PA

Built 1978 Load: 32.7 t ADT: 714

SR 1016 CABLE HOLL

Good

Over: OVER VANARSDALE RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1979 Load: 32.7 t ADT: 221

SR 4019 E.MILL ST

Good

Over: OVER STILLWATER CK BR

SUGAR GROVE TOWNSHIP, Warren, PA

Built 1972 Load: 32.7 t ADT: 802

TOWNSHIP ROAD 505

Good

Over: SR 0070

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 Load: 32.7 t ADT: 590

SR 0070

Good

Over: BR N BR PIGEON CK

SOMERSET TOWNSHIP, Washington, PA

Built 1956 Load: 32.7 t ADT: 27,992

LORDVILLE ROAD

Good

Over: DELAWARE RIVER

LORDVILLE RD & DELAWARE R, Carbon, PA

Built 1992 Load: 32.7 t ADT: 105

SR3013 S MRY CH RD

Good

Over: ARIEL CREEK

SALEM TWP 358 E SR 3006, Wayne, PA

Built 1989 Load: 32.7 t ADT: 1,018

PA TPK(PA-66) RAMP

Good

Over: LIT. SEWICKLEY CR

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 32.7 t ADT: 10,685

T370 Limerick Rd

Good

Over: L.SEWICKLEY CK.

BTW T704 & T332, Westmoreland, PA

Built 1910 Load: 32.7 t ADT: 100

OLD WILLIAM PENN H

Good

Over: TURTLE CREEK

1.4 MI WEST OF SR 66, Westmoreland, PA

Built 1982 Load: 32.7 t ADT: 5,512

TROUTHAVEN DRIVE

Good

Over: TRIB.OF HAYMAKER RUN

NEAR ALLEGHENY CNTY LINE, Westmoreland, PA

Built 1973 Load: 32.7 t ADT: 425

SR 0006 TR 6

Good

Over: LITTLE TUSCARORA CREEK

LACEYVILLE BO JCT SR 3001, Wyoming, PA

Built 1965 Load: 32.7 t ADT: 5,744

SR 2002

Good

Over: LEONARDS CREEK

MONROE TWP 157 SE TR 309, Wyoming, PA

Built 1969 Load: 32.7 t ADT: 204

SR 0006 TR 6 CSY H

Good

Over: EMERGENCY SPILLWAY

CARBONDLE TWP .2M W BUS 6, Lackawanna, PA

Built 1995 Load: 32.7 t ADT: 13,346

SR 0081 I-81 NB

Good

Over: RR & ROARING BK &MILL ST

DUNMORE BORO 1.5M N TR307, Lackawanna, PA

Built 1996 Load: 32.7 t ADT: 31,673

T-566 SHUNPIKE RD.

Good

Over: LE BOEUF CREEK

650 S OF TOWNHALL RD W, Erie, PA

Built 1996 Load: 32.7 t ADT: 348

T-336 (CROSS ROAD)

Good

Over: BEAR RUN

495 EAST OF SR 219, Elk, PA

Built 1997 Load: 32.7 t ADT: 112

T-165

Good

Over: WOLF RUN

1.8 MI. NW OF HUGHSVILLE, Lycoming, PA

Built 1980 Load: 32.7 t ADT: 100

SR 4007

Good

Over: CROOKED CREEK

BUCKINGHAM TP .4M N TR371, Wayne, PA

Built 1999 Load: 32.7 t ADT: 62

SR 0051 NB SB

Good

Over: LEWIS RUN

LEWIS RUN, Allegheny, PA

Built 1999 Load: 32.7 t ADT: 23,832

T-990 LAKEVIEW DR.

Good

Over: OVER EAST SHREVE RUN

LAKE CANADOHTA, Crawford, PA

Built 1999 Load: 32.7 t ADT: 500

SR 2027 MCALPINE

Good

Over: MILL CREEK

AVOCA BORO 692 NW TR 11, Luzerne, PA

Built 2000 Load: 32.7 t ADT: 4,846

SR3037

Good

Over: BR SEWICKLEY CK

SOUTH HUNTINGDON TWP, Westmoreland, PA

Built 2000 Load: 32.7 t ADT: 928

T-325

Good

Over: RUDOLPH RUN

WAYNE TOWNSHIP, Greene, PA

Built 1994 Load: 32.7 t ADT: 100

OLD EAGLE SCHOL RD

Good

Over: US 202 RAMPS L & BC-2

S. VALLEY FORGE 24K2, Chester, PA

Built 2001 Load: 32.7 t ADT: 10,731

T-924 WELSH HILL

Good

Over: OVER PATRICK RUN

2.1 MI. N.E. SPARTANSBURG, Crawford, PA

Built 2002 Load: 32.7 t ADT: 100

SR 3003

Good

Over: GEORGES CREEK

NICHOLSON/SPRINGHILL TWPS, Fayette, PA

Built 2002 Load: 32.7 t ADT: 135

SR 2005 CAREY AVE

Good

Over: SUSQUEHANNA RIVER

LARKSVILLE BO @ JCT TR 11, Luzerne, PA

Built 2002 Load: 32.7 t ADT: 13,654

PA TPK (TOLL 43)

Good

Over: SR 1020

.8MI. N. OF DONORA INT., Washington, PA

Built 1999 Load: 32.7 t ADT: 5,633

PA TPK (TOLL 43)

Good

Over: SR0481 TAYLORS RUN

1MI. N. OF DONORA INT., Washington, PA

Built 1999 Load: 32.7 t ADT: 5,633

Showing 13,201-13,250 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.