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 3005

Good

Over: LITTLE SANDY CREEK

WORTHVILLE NO.1, Jefferson, PA

Built 1934 Load: 39.9 t ADT: 188

SR 0106 TR 106

Good

Over: FALL BROOK

FELL TWP .5 M S SR 1009, Lackawanna, PA

Built 1959 Load: 39.9 t ADT: 2,937

T-791 McILVAINE RD

Good

Over: AMTRAK

450 FT SOUTH OF SR 30, Lancaster, PA

Built 1996 Load: 39.9 t ADT: 465

COVERT RD

Good

Over: MAHONING RIVER

037012 UNION&N BEAV TWPS, Lawrence, PA

Built 2003 Load: 39.9 t ADT: 500

PA 443; MOONSHINE

Good

Over: INDIANTOWN RUN

N.OF I.G.M.R., Lebanon, PA

Built 1995 Load: 39.9 t ADT: 1,323

PA 309(LR 226)

Good

Over: JORDAN CREEK

PLEASANT CORNERS, Lehigh, PA

Built 1962 Load: 39.9 t ADT: 8,042

BRIDGE 2633 T-698

Good

Over: OVER PINE RUN

WOODLAND RD. FINDLEY TWP., Mercer, PA

Built 1986 Load: 39.9 t ADT: 79

BRIDGE 109 T-865

Good

Over: OVER SHENANGO RIVER

HALFWAY ROAD GREENE TWP., Mercer, PA

Built 1983 Load: 39.9 t ADT: 365

BRIDGE STREET

Good

Over: SCHUYLKILL RIVER

MONT CLARE 26F05/3252J9, Montgomery, PA

Built 1997 Load: 39.9 t ADT: 11,680

AIRPORT ROAD

Good

Over: POTTSTOWN EXPRESSWAY

LIMERICK TOWNSHIP 3140B03, Montgomery, PA

Built 1984 Load: 39.9 t ADT: 2,707

ALLENTOWN ROAD

Good

Over: INDIAN CREEK / 2919A10

NEAR RT46040 08F11, Montgomery, PA

Built 1989 Load: 39.9 t ADT: 7,762

RP M(I-476)MCB-105

Good

Over: PA TPK(I-276)

MID-COUNTY INTERCHANGE, Montgomery, PA

Built 1992 Load: 39.9 t ADT: 23,886

SR 405

Good

Over: CHILLISQUAQUE CREEK

3.5 MI S OF MONTANDON, Northumberland, PA

Built 1974 Load: 39.9 t ADT: 3,833

T-485 CO.BR.#152

Good

Over: LICK RUN

.5 MI S OF STONINGTON, Northumberland, PA

Built 1904 Load: 39.9 t ADT: 175

MIDDLE RD

Good

Over: MIDDLE CREEK

2 MI NE MCCLURE BORO, Snyder, PA

Built 1966 Load: 39.9 t ADT: 317

SR 3003

Good

Over: Big Run

1.75 MI N OF SONESTOWN, Sullivan, PA

Built 1956 Load: 39.9 t ADT: 28

SR 2036

Good

Over: TUNKHANNOCK CREEK

GIBSON TWP 593 E TR 92, Susquehanna, PA

Built 1980 Load: 39.9 t ADT: 17

T-377 BAILEY ROAD

Good

Over: MARTINS CREEK

2 MI SW OF HOP BOTTOM, Susquehanna, PA

Built 1974 Load: 39.9 t ADT: 100

SR 49

Good

Over: OVER BALDWIN CREEK

4 MI W OF LAWRENCEVILLE, Tioga, PA

Built 1976 Load: 39.9 t ADT: 4,020

SR 349

Good

Over: OVER WATTLES RUN

5 MI N OF GAINES, Tioga, PA

Built 1973 Load: 39.9 t ADT: 648

COOPER MILL ROAD

Good

Over: WHITE DEER CREEK

500 S WHITE DEER CRK RD, Union, PA

Built 2007 Load: 39.9 t ADT: 25

SR 3007 O LISBON

Good

Over: SCRUBGRASS CREEK

CLINTON TOWNSHIP, Venango, PA

Built 1995 Load: 39.9 t ADT: 257

SR 0980

Good

Over: ROBINSON RUN

MCDONALD BOROUGH, Washington, PA

Built 1996 Load: 39.9 t ADT: 3,868

COCHECTON DAM ROAD

Good

Over: DELAWARE RIVER

AT COCHECTON, Potter, PA

Built 1950 Load: 39.9 t ADT: 1,317

SR 0981

Good

Over: LOYALHANNA CREEK

LOYALHANNA TOWNSHIP, Westmoreland, PA

Built 1965 Load: 39.9 t ADT: 3,090

SR 3003

Good

Over: SUGAR HOLLOW CREEK

EATON TWP .7 M W TR 29, Wyoming, PA

Built 1990 Load: 39.9 t ADT: 898

SR 3072

Good

Over: BUNCH RUN

SPRING GROVE, York, PA

Built 1953 Load: 39.9 t ADT: 8,304

SR 220

Good

Over: MURRAY CREEK

GREENS LANDING, Bradford, PA

Built 1997 Load: 39.9 t ADT: 9,770

S.R. 1026

Good

Over: OVER LITTLE PINE CREEK

1.25 MI E OF BENDERTOWN, Columbia, PA

Built 1998 Load: 39.9 t ADT: 93

PA 378 (LR 1007)

Good

Over: US 22 (LR 772)

US 22 INTERCHANGE, Lehigh, PA

Built 1999 Load: 39.9 t ADT: 35,929

PA 160

Good

Over: LITTLE DARK SHADE CREEK

CENTRAL CITY BORO., Somerset, PA

Built 2000 Load: 39.9 t ADT: 2,823

SR 3001; BUS. 15

Good

Over: ROCK CREEK

1/2 MI.N.OF GETTSBURG, Adams, PA

Built 2000 Load: 39.9 t ADT: 3,874

I-78 EB (LR 1045)

Good

Over: RAMPS A&B SR 8018

E.B. OVER SR 8018, Northampton, PA

Built 2001 Load: 39.9 t ADT: 33,230

SR4012

Good

Over: SLIPPERY ROCK CREEK

BOYER, Butler, PA

Built 2001 Load: 39.9 t ADT: 325

FUTURE SR15 NB

Good

Over: OVER SR 1001

0.5 M NW OF MANSFIELD, Tioga, PA

Built 2001 Load: 39.9 t ADT: 5,004

SR 3019

Good

Over: CLEARFIELD CREEK

COALPORT BORO, Clearfield, PA

Built 2002 Load: 39.9 t ADT: 463

PA TPK. TOLL 43

Good

Over: SR2023 PIGEON CR RR

N.OF DONORA/CHARLEROI INT, Washington, PA

Built 2001 Load: 39.9 t ADT: 5,633

SR 3017 WELLSBURG

Good

Over: OVER TEMPLE CREEK BRANCH

ELK CREEK TOWNSHIP, Erie, PA

Built 2003 Load: 39.9 t ADT: 560

SR 22-US 22

Good

Over: SR 3023

0.5 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2003 Load: 39.9 t ADT: 1,360

SR 15 SOUTHBOUND

Good

Over: ROUTE 6

BORO OF MANSFIELD, Tioga, PA

Built 2003 Load: 39.9 t ADT: 5,424

MT PLEASANT RD

Good

Over: SHULTZ CREEK

1.5 NE N GERMTWN/BROWNS R, Perry, PA

Built 2003 Load: 39.9 t ADT: 50

SR 2003 CORTEZ RD

Good

Over: WALLENPAUPACK CREEK

JEFFERSON 1.5 M N TE348, Lackawanna, PA

Built 2004 Load: 39.9 t ADT: 1,860

SR 80-I 80

Good

Over: SR 879-PA 879

EXIT 120 CLEARFIELD INTER, Clearfield, PA

Built 2004 Load: 39.9 t ADT: 10,964

BETHEL ROAD

Good

Over: SPRING RUN

1.5MI.SOUTH TR 261 42B06, Delaware, PA

Built 2004 Load: 39.9 t ADT: 1,855

SR 1004

Good

Over: CHILLISQUAQUE CREEK

4 MI.N.OF WASHINGTONVILLE, Montour, PA

Built 2005 Load: 39.9 t ADT: 225

HEYDTS SCHOOL HOUS

Good

Over: SWAMP CREEK

NW OF BECHTELSVILLE, Berks, PA

Built 2005 Load: 39.9 t ADT: 275

SR 2010

Good

Over: BEAVER CREEK

2 MI. N.W.HUMMELSTOWN, Dauphin, PA

Built 2006 Load: 39.9 t ADT: 2,110

T-417 CTY BR 17

Good

Over: Co. Line Br. Chillisq Cr

1.0 MI. NORTH OF OTTAWA, Montour, PA

Built 2006 Load: 39.9 t ADT: 110

T.R. 106 SALEM AV.

Good

Over: LACKAWANNA RIVER

CRBNDLE 360 N BUS SR6, Lackawanna, PA

Built 2006 Load: 39.9 t ADT: 6,756

SR3017

Good

Over: KAUFMAN RUN

CRIDER ROAD, Butler, PA

Built 2007 Load: 39.9 t ADT: 5,004

Showing 16,201-16,250 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.