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 1003

Good

Over: OVER WHITE DEER CREEK

3 MI W OF WHITE DEER, Union, PA

Built 1958 Load: 36.3 t ADT: 431

T-394

Good

Over: COAL RUN

1.1 MI. N. OF MIFFLINBURG, Union, PA

Built 1984 Load: 36.3 t ADT: 400

SR 2013 ROCKLAND

Good

Over: OVER Sandy Ck BIKE TRAIL

CRANBERRY TOWNSHIP, Venango, PA

Built 1983 Load: 36.3 t ADT: 1,842

SR 1013 SCANDIA RD

Good

Over: OVER STATE LINE CREEK

ELK TOWNSHIP, Warren, PA

Built 1965 Load: 36.3 t ADT: 571

SR 3009

Good

Over: BRANCH OF BUFFALO CREEK

BUFFALO TOWNSHIP, Washington, PA

Built 1964 Load: 36.3 t ADT: 330

PA 234; SR 0234

Good

Over: LITTLE CONEWAGO CREEK

3 MI. W. OF YORK, York, PA

Built 1992 Load: 36.3 t ADT: 5,253

GIRARD AVENUE

Good

Over: CSX RAILROAD

@PHILADELPHIA ZOO 3589J05, Philadelphia, PA

Built 1890 Load: 36.3 t ADT: 25,528

I-76 (EB)

Good

Over: 26TH ST;PASSYUNK AVE

PASSYUNK OVERPASS 37B05, Philadelphia, PA

Built 1957 Load: 36.3 t ADT: 21,524

Wises Mill Road

Good

Over: Branch Wissahickon Crk

W of Forbidden Drive16H06, Philadelphia, PA

Built 1979 Load: 36.3 t ADT: 200

SR 8024 - RAMP

Good

Over: I-81 I-84 EB RMP TO 81

DUNMORE BO RMP TO I-81 SB, Lackawanna, PA

Built 1999 Load: 36.3 t ADT: 14,315

SR 322-US 322 W.B.

Good

Over: TWP RT 839 OAK STREET

2 MI NW MILROY, Mifflin, PA

Built 1999 Load: 36.3 t ADT: 8,559

T-583 BROWN ROAD

Good

Over: E BR LEBOUEF CREEK

500 EAST OF SAMPSON RD, Erie, PA

Built 1999 Load: 36.3 t ADT: 290

SR 0547 TR 547

Good

Over: BUTLER CREEK

GIBSON TWP @ JCT SR 2067, Susquehanna, PA

Built 1999 Load: 36.3 t ADT: 214

SR8031 OFF RAMP SB

Good

Over: LUZ&SUSQ RR; SUSQ RIVER

PLAINS TWP OVR SUSQ RIVER, Luzerne, PA

Built 1976 Load: 36.3 t ADT: 6,585

SR 0492 TR 492

Good

Over: SALT LICK CREEK

NEW MLFRD TP 400W SR1021, Susquehanna, PA

Built 2000 Load: 36.3 t ADT: 1,852

SOUTH WARNER ROAD

Good

Over: US RTE 202;RMPS F1 AND S

KING OF PRUSSIA 3366-F07, Montgomery, PA

Built 2001 Load: 36.3 t ADT: 10,208

I-80 WESTBOUND

Good

Over: I-180 AND RAMPS

2 MI. N OF MILTON, Northumberland, PA

Built 2001 Load: 36.3 t ADT: 13,142

SR 4012 SHADELAND

Good

Over: OVER CONNEAUT CREEK

SPRING TOWNSHIP, Crawford, PA

Built 2002 Load: 36.3 t ADT: 176

SR 3022 E.MAIN ST.

Good

Over: OVER BROKENSTRAW CREEK

YOUNGSVILLE BOROUGH, Warren, PA

Built 1930 Load: 36.3 t ADT: 1,649

I-80 EASTBOUND

Good

Over: I-180 & SR 147 MID-POINT

2 MI N OF MILTON, Northumberland, PA

Built 2002 Load: 36.3 t ADT: 13,224

SR 99 FOREST ST.

Good

Over: OVER LITTLE CONNEAUTTEE

CAMBRIDGE TOWNSHIP, Crawford, PA

Built 2003 Load: 36.3 t ADT: 2,499

SR 1001 LK.PLSNT.R

Good

Over: OVER SR 90 EB/WB

GREEN TOWNSHIP, Erie, PA

Built 2003 Load: 36.3 t ADT: 2,253

CONNECTOR (SR8079)

Good

Over: I-79 NB&SB & SR9479

TP CONNECTOR OVER I-79, Butler, PA

Built 2003 Load: 36.3 t ADT: 11,808

SR 79 SB

Good

Over: OVER T-701 & NS RR

UNION TOWNSHIP, Crawford, PA

Built 2004 Load: 36.3 t ADT: 6,469

RAMP C

Good

Over: TRIB LITTLE MUDDY CR

RAMP C, Berks, PA

Built 2004 Load: 36.3 t ADT: 1,102

SR 99 I-99

Good

Over: SR 3042 - US 322

4 MILE W OF STATE COLLEGE, Centre, PA

Built 2004 Load: 36.3 t ADT: 11,016

NORTH BUFFALO ST.

Good

Over: CAMP BROOK

ELKLAND BORO, Tioga, PA

Built 2004 Load: 36.3 t ADT: 550

SR 90 EB

Good

Over: OVER T-390 SOUTH CK.RD.

GIRARD TOWNSHIP, Erie, PA

Built 2005 Load: 36.3 t ADT: 10,226

T-869 BLAKESLEE R

Good

Over: OVER EAST BR.OIL CK.

0.7 MI.SW.SPARTANSBURG, Crawford, PA

Built 2005 Load: 36.3 t ADT: 250

SR 4007 MOUNTAIN R

Good

Over: THREE SQUARE HOLLOW CK

3.5 MI EAST OF NEWBURG, Cumberland, PA

Built 2006 Load: 36.3 t ADT: 313

SR 90 WB

Good

Over: OVER T390 SOUTH CK.ROAD

GIRARD TOWNSHIP, Erie, PA

Built 2006 Load: 36.3 t ADT: 10,983

SR 3012 Market St.

Good

Over: Riverside Dr. (City Is.)

CITY ISLAND, Dauphin, PA

Built 2006 Load: 36.3 t ADT: 10,617

SR 3026

Good

Over: Little Cove Creek

At Yeakle Mill, Franklin, PA

Built 2007 Load: 36.3 t ADT: 96

SR 153 - US 153

Good

Over: CLEARFIELD CREEK

3 MI SE OF CLEARFIELD, Clearfield, PA

Built 2007 Load: 36.3 t ADT: 3,067

MILL LANE (T-488)

Good

Over: US ROUTE 202

.4 MI. N OF PA 401 22J7, Chester, PA

Built 2007 Load: 36.3 t ADT: 2,175

T-510

Good

Over: PENNS CREEK

40 FT FROM SR 2012, Centre, PA

Built 2007 Load: 36.3 t ADT: 76

OLD NORTHERN PIKE

Good

Over: SR 2048 (BUSINESS RT. 22

150N.OF MONROEVILLE BLVD, Allegheny, PA

Built 2007 Load: 36.3 t ADT: 7,690

SR 6-US 6

Good

Over: WESTERN NY & PA RR

PORT ALLEGANY BORO, McKean, PA

Built 2008 Load: 36.3 t ADT: 3,317

T-100 Sand Dollar

Good

Over: Trout Run

Upper Allen Township, Cumberland, PA

Built 2008 Load: 36.3 t ADT: 100

T-442 BURCHER AVE

Good

Over: LEGGETTS CREEK

S ABING TWP 200 NE US11, Lackawanna, PA

Built 2009 Load: 36.3 t ADT: 370

SR 1021

Good

Over: BRUSH RUN

LAKEMONT, Blair, PA

Built 2009 Load: 36.3 t ADT: 6,560

HENNING RD

Good

Over: MUD RUN

BTWN 903/534 NR ALBRIGHTV, Carbon, PA

Built 2008 Load: 36.3 t ADT: 300

OLD BUTLER RD

Good

Over: BIG RUN

500 NW OF DOUGHERTY RD, Lawrence, PA

Built 2009 Load: 36.3 t ADT: 325

SR 220

Good

Over: WOLCOTT CREEK

0.5 MI S GREENS LANDING, Bradford, PA

Built 2010 Load: 36.3 t ADT: 9,770

US 522

Good

Over: LICKING CREEK

0.5 MILE NORTH OF SR 2005, Fulton, PA

Built 2010 Load: 36.3 t ADT: 1,615

SR 4010Siloam RD.

Good

Over: Conocheague Cr

.25 mi NW of Chambersburg, Franklin, PA

Built 2011 Load: 36.3 t ADT: 2,821

RAMP A

Good

Over: UTILITY CORRIDOR

COMM. BARRY BRDG 3806K07, Delaware, PA

Built 2011 Load: 36.3 t ADT: 3,790

SR 0434 TR 434

Good

Over: BALLIARD CREEK

LACKAWXN TWP 191N SR1002, Pike, PA

Built 2011 Load: 36.3 t ADT: 3,066

BENFER DR. (T-507)

Good

Over: TRIB. TO PENNS CREEK

1.5 MI. SE OF NEW BERLIN, Snyder, PA

Built 2011 Load: 36.3 t ADT: 217

SR 0008

Good

Over: CHERRYTREE RUN

CHERRYTREE TWP, Venango, PA

Built 2011 Load: 36.3 t ADT: 3,454

Showing 14,501-14,550 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.