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

JACOBY CREEK ROAD

Good

Over: JACOBY CREEK

NW OF PA 611, Northampton, PA

Built 1993 Load: 50.8 t ADT: 200

SR 2011

Good

Over: OUTLET SAWKILL POND

DINGMAN TWP .5 M S TR 6, Pike, PA

Built 1948 Load: 50.8 t ADT: 1,790

SR 44-PA 44

Good

Over: KETTLE CREEK

1 MI E OLEONA, Potter, PA

Built 1995 Load: 50.8 t ADT: 220

SR 2047

Good

Over: BUFFALO CREEK

2 MI.S.OF BERLIN, Somerset, PA

Built 1997 Load: 50.8 t ADT: 1,134

SR 2033

Good

Over: GLADES CREEK

3 MI.W.OF ROXBURY, Somerset, PA

Built 1996 Load: 50.8 t ADT: 486

JONES MILL RUN RD

Good

Over: JONES MILL RUN

2 MI SOUTH OF SR 31, Somerset, PA

Built 2004 Load: 50.8 t ADT: 50

MILL CREEK ROAD

Good

Over: MILL CREEK

4 MI NW OF SR 87, Sullivan, PA

Built 2000 Load: 50.8 t ADT: 10

SR 4001

Good

Over: OVER COWANESQUE RIVER

VILLAGE OF POTTER BROOK, Tioga, PA

Built 1962 Load: 50.8 t ADT: 621

BUTTERNUT HOLLOW R

Good

Over: KETTLE CREEK

POTTER LINE NEAR SLIDERS, Tioga, PA

Built 2000 Load: 50.8 t ADT: 25

SR 8 R C FRAME HWY

Good

Over: OVER T-370 SANDY CREEK

VICTORY TOWNSHIP, Venango, PA

Built 1975 Load: 50.8 t ADT: 2,854

SR 428 DEMPSEYTOWN

Good

Over: OVER SUGAR CREEK

OAKLAND TOWNSHIP, Venango, PA

Built 1938 Load: 50.8 t ADT: 585

SR 0070

Good

Over: SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 50.8 t ADT: 26,523

15th Street

Good

Over: Abolished Conrail

N. of Callowhill 28F11, Philadelphia, PA

Built 1898 Load: 50.8 t ADT: 7,800

Martins Mill Road

Good

Over: CSX SEPTA (NWTN BR)

at Longshore Avenue 18G06, Philadelphia, PA

Built 1999 Load: 50.8 t ADT: 6,800

RAMP VS

Good

Over: SECOND STREET

I-95 AT VINE STR. 3590H07, Philadelphia, PA

Built 1989 Load: 50.8 t ADT: 19,323

SR 4021 BEATTY SCH

Good

Over: OVER MCCAIN RUN

SALEM TOWNSHIP, Mercer, PA

Built 1997 Load: 50.8 t ADT: 320

SR 1016

Good

Over: PINE CREEK

AVIS, Clinton, PA

Built 1997 Load: 50.8 t ADT: 2,855

SR 90 EB

Good

Over: OVER ALLEGHENY RAILROAD

SUMMIT TOWNSHIP, Erie, PA

Built 1997 Load: 50.8 t ADT: 20,606

SR 87

Good

Over: OVER LITTLE LOYALSOCK CK

BORO OF DUSHORE, Sullivan, PA

Built 1997 Load: 50.8 t ADT: 1,477

SR 176 (NB)

Good

Over: SR 2089 NB (RAMP U)

I-176 NB OVER SR2089 NB, Berks, PA

Built 1995 Load: 50.8 t ADT: 5,316

SR 522

Good

Over: MIDDLE CREEK

MIDDLEBURG BOROUGH, Snyder, PA

Built 1997 Load: 50.8 t ADT: 11,923

PA 392; SR 0392

Good

Over: BRANCH OF FISHING CREEK

.5 MILE EAST OF I-83, York, PA

Built 1998 Load: 50.8 t ADT: 941

T355 HUNSRICK S RD

Good

Over: US 219

1.5 MI.S OF MEYERSDALE, Somerset, PA

Built 1998 Load: 50.8 t ADT: 237

PETER CK RD EXT

Good

Over: LICK RUN

1000 FT NW OF SR 3017, Allegheny, PA

Built 1999 Load: 50.8 t ADT: 675

PA 641; SR 0641

Good

Over: ALEXANDER SPRING CREEK

Newville Rd, Cumberland, PA

Built 1999 Load: 50.8 t ADT: 5,029

HOT METAL STREET

Good

Over: CSX RAILROAD TUNNEL

147 Hot Metal St Bridge, Allegheny, PA

Built 2000 Load: 50.8 t ADT: 17,500

SR 1009

Good

Over: TRIB TO BLOCKHOUSE CREEK

2MILE NORTH OF BUTTONWOOD, Lycoming, PA

Built 2000 Load: 50.8 t ADT: 344

SR 120-PA 120

Good

Over: DRIFTWOOD BRANCH

CAMERON, Cameron, PA

Built 2000 Load: 50.8 t ADT: 489

NEWTOWN PIKE

Good

Over: CORE CREEK

.2MI N OF LR 09028 37A08, Bucks, PA

Built 2000 Load: 50.8 t ADT: 15,894

PA TPK NB(TOLL 43)

Good

Over: MOUNTAIN CREEK

3 MI. SOUTH OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 50.8 t ADT: 4,443

US 22

Good

Over: TWP RD T-482(GOODMAN RD)

1 MI SW PA 453 WATER ST, Huntingdon, PA

Built 2001 Load: 50.8 t ADT: 4,055

HOOKSTOWN GRADE RD

Good

Over: RAREDON RUN

ALLEGHENY-BEAVER CO. LINE, Allegheny, PA

Built 2002 Load: 50.8 t ADT: 291

SR 99-I 99

Good

Over: SR 3043

0.5 MI E OF STATE COLLEGE, Centre, PA

Built 2002 Load: 50.8 t ADT: 13,665

SR 3005

Good

Over: NO BRANCH MAHANTANGO CRK

1 MI. N. OF FREEMONT, Snyder, PA

Built 2002 Load: 50.8 t ADT: 273

S.R. 2006

Good

Over: MUNCY CREEK

2 MI EAST OF NORDMONT, Sullivan, PA

Built 2002 Load: 50.8 t ADT: 73

SR 4017

Good

Over: OVER HOLDEN CREEK

NORTH OF OSCEOLA, Tioga, PA

Built 2002 Load: 50.8 t ADT: 274

SR 80 EBL

Good

Over: NORFOLK SOUTHERN RR

1.5 MI. N. OF MILTON, Northumberland, PA

Built 2002 Load: 50.8 t ADT: 13,743

SR 99-I 99

Good

Over: LAUREL AND OLIVER RUNS

2 MILES WEST PORT MATILDA, Centre, PA

Built 2003 Load: 50.8 t ADT: 7,082

SR 257 SALINA ROAD

Good

Over: OVER LOWER TWO MILE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 2004 Load: 50.8 t ADT: 8,543

SR 3042

Good

Over: OLIVER RUN

2 MI NW. PORT MATILDA, Centre, PA

Built 2004 Load: 50.8 t ADT: 934

SR2019

Good

Over: BIG RUN

SOUTH OF DESIRE, Jefferson, PA

Built 2004 Load: 50.8 t ADT: 124

SR 4002

Good

Over: NORFOLK/SOUTHERN R.R.

NORTH SIDE OF CLEONA, Lebanon, PA

Built 2005 Load: 50.8 t ADT: 3,612

EAST MARKET STREET

Good

Over: LACKAWANNA RIVER

650 SE OF MAIN AVENUE, Lackawanna, PA

Built 2005 Load: 50.8 t ADT: 8,404

SR 80 WBL

Good

Over: NORFOLK SOUTHERN RR

1.5 MI. NORTH OF MILTON, Northumberland, PA

Built 2001 Load: 50.8 t ADT: 13,946

PA 35

Good

Over: NO BRANCH MAHANTANGO CRK

MOUNT PLEASANT MILLS, Snyder, PA

Built 2007 Load: 50.8 t ADT: 3,753

SR 0917

Good

Over: Unnamed Trib Sawmill Cr.

1.2 MI SOUTH OF SR 1067, Washington, PA

Built 2006 Load: 50.8 t ADT: 1,530

SR 1016

Good

Over: WHITE BRANCH

1 MI NW NORTH FORK, Potter, PA

Built 2007 Load: 50.8 t ADT: 204

JACK DENT RD

Good

Over: GINGER WHISKEY RUN

2 MI SW OF QUEHANNA HWY, Clearfield, PA

Built 2007 Load: 50.8 t ADT: 25

T-456PineHill Rd

Good

Over: Sherman Creek

0.2 Mi. SW Dellville, Perry, PA

Built 2007 Load: 50.8 t ADT: 475

SR4026

Good

Over: SUGARCAMP RUN

SUGARCAMP RUN, Indiana, PA

Built 2008 Load: 50.8 t ADT: 98

Showing 19,001-19,050 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.