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

NAAMANS CREEK RD.

Good

Over: EAST BRANCH NAAMAN CREEK

1MI.NORTH A-2436 42D10, Delaware, PA

Built 1986 Load: 34.5 t ADT: 2,020

SR 474 JAMESTOWN

Good

Over: OVER FRENCH CREEK E BR

VENANGO TOWNSHIP, Erie, PA

Built 1987 Load: 34.5 t ADT: 889

T-467; GLFRD SPRNG

Good

Over: I-81; SR 0081

2 ML. N. OF MARION, Franklin, PA

Built 1963 Load: 34.5 t ADT: 882

PA 316 WAYNE ROAD

Good

Over: CSX

1.5 MI. S.E. CHAMBERSBURG, Franklin, PA

Built 1937 Load: 34.5 t ADT: 9,834

SR3039

Good

Over: SWAMP RUN

SWAMP RUN NO.1, Jefferson, PA

Built 1932 Load: 34.5 t ADT: 347

SR 3102 RIVER ST

Good

Over: SR 0081 I-81

SCRANTON CITY RIVER ST, Lackawanna, PA

Built 1965 Load: 34.5 t ADT: 13,572

SR 2103 REEVES ST

Good

Over: I-81 NB&SB I-84 RAMPS

DUNMORE REEVE ST OVR I-81, Lackawanna, PA

Built 1996 Load: 34.5 t ADT: 1,746

SR 1039

Good

Over: LACKA CO RAIL AUTHORITY

CARBONDALE TWP .3M S BUS6, Lackawanna, PA

Built 1995 Load: 34.5 t ADT: 8,254

3032 Slackwater Rd

Good

Over: Conestoga River

SLACKWATER, Lancaster, PA

Built 1958 Load: 34.5 t ADT: 5,356

SR 4029 LR 36174

Good

Over: PA TPK (I-76)

2MI N ELSTONVILLE, Lancaster, PA

Built 1950 Load: 34.5 t ADT: 1,794

PA TPK (I-76)

Good

Over: LR38033 SR3009

SOUTH LONDONDERRY TWP, Lebanon, PA

Built 1949 Load: 34.5 t ADT: 24,423

COPLAY CREEK ROAD

Good

Over: COPLAY CREEK

0.8 MI. NE SCHNECKSVILLE, Lehigh, PA

Built 1995 Load: 34.5 t ADT: 200

SR 0405

Good

Over: LVRR WB SUSQ RVR

MUNCY PIN/HANGER RIVER BR, Lycoming, PA

Built 1959 Load: 34.5 t ADT: 4,462

SR 3014

Good

Over: BOTTLE RUN

2 MI NW OF WILLIAMSPORT, Lycoming, PA

Built 1961 Load: 34.5 t ADT: 2,820

T-434

Good

Over: MOSQUITO CREEK

0.9 Mi. S. JUNC. PA 654, Lycoming, PA

Built 1940 Load: 34.5 t ADT: 300

BRIDGE 2211 T-894

Good

Over: OVER WOLF CREEK BRANCH

JAMISON RD. WORTH TWP., Mercer, PA

Built 1983 Load: 34.5 t ADT: 64

TOWNSHIP LINE ROAD

Good

Over: MONOCACY CREEK

1.5 M. EAST OF PA 512, Northampton, PA

Built 1964 Load: 34.5 t ADT: 300

PA 849; SR 0849

Good

Over: BUFFALO CREEK

NEAR MARKELSVILLE, Perry, PA

Built 1948 Load: 34.5 t ADT: 306

SR 3005

Good

Over: CISNA RUN

ANDERSONBURG, Perry, PA

Built 1937 Load: 34.5 t ADT: 128

SPRING T822 #311

Good

Over: OVER BEAVER CREEK

0.75MI SW BEAVER SPRINGS, Snyder, PA

Built 1962 Load: 34.5 t ADT: 150

SR 4039

Good

Over: CROOKED CREEK

2.5 MI N OF MIDDLEBURY, Tioga, PA

Built 1975 Load: 34.5 t ADT: 408

HORNER HILL ROAD

Good

Over: LAUGHLINTOWN RUN

LAUGHLINTOWN AREA, Westmoreland, PA

Built 1998 Load: 34.5 t ADT: 100

SR 1009

Good

Over: OXBOW CREEK

LEMON TWP 1 M N TR 92, Wyoming, PA

Built 1990 Load: 34.5 t ADT: 397

PA TPK (I-76)

Good

Over: LR66028 SR 4027

FAIRVIEW TWP, York, PA

Built 1949 Load: 34.5 t ADT: 25,229

Fox Street

Good

Over: SEPTA

N of Allegheny Ave 28E02, Philadelphia, PA

Built 1993 Load: 34.5 t ADT: 11,600

Comley Road

Good

Over: Wilsons Run Br Byberry

W of Waldemire Dr 10C13, Philadelphia, PA

Built 1976 Load: 34.5 t ADT: 4,700

PA 116; SR 0116

Good

Over: SPRINGS RUN

2 MI. S. OF FAIRFIELD, Adams, PA

Built 1997 Load: 34.5 t ADT: 4,076

SHERIDAN STREET

Good

Over: GIRTYS RUN

445011 SHERIDAN STREET, Allegheny, PA

Built 1998 Load: 34.5 t ADT: 500

T-885 JERUSALEM RD

Good

Over: OVER CONNEAUT CREEK

3.5MILES NW. SPRINGBORO, Crawford, PA

Built 1998 Load: 34.5 t ADT: 50

T-535 (CO BR # 9)

Good

Over: TOMJACK CREEK

0.1 MI. E. OF BOURNE, Bradford, PA

Built 1999 Load: 34.5 t ADT: 50

MIDDLE ROAD

Good

Over: TRIB TO CHERRY CREEK

SOUTH OF STROUDSBURG, Monroe, PA

Built 2000 Load: 34.5 t ADT: 280

SR 0006 TR 6 WB

Good

Over: SR 3006

TNKHNK BO 1.7 M W TR 29, Wyoming, PA

Built 2000 Load: 34.5 t ADT: 4,769

SR0422 EB

Good

Over: T-530 & TR GARRETTS RUN

HAWK HOLLOW EB, Armstrong, PA

Built 2001 Load: 34.5 t ADT: 8,294

PA TPK (TOLL 43)

Good

Over: SR 0481 TAYLORS RUN

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

Built 1999 Load: 34.5 t ADT: 5,533

SR 0507 TR 507

Good

Over: WALLENPAUPACK CREEK

DREHER TWP .2 M E TR 191, Wayne, PA

Built 2003 Load: 34.5 t ADT: 3,724

SR 244-PA 244

Good

Over: IRISH SETTLEMENT BROOK

1 MI SOUTH OF GENESEE, Potter, PA

Built 2003 Load: 34.5 t ADT: 217

MAITLAND LANE

Good

Over: HOTTENBAUGH RUN

1/4 MILE W OF SR 168, Lawrence, PA

Built 2004 Load: 34.5 t ADT: 3,023

T-781 COMMONS BLVD

Good

Over: BUCK RUN

100 S OF INTER SR 4013, Mifflin, PA

Built 2005 Load: 34.5 t ADT: 66

SR 322-US 322

Good

Over: MOSHANNON CREEK

PHILIPSBURG BORO, Centre, PA

Built 2005 Load: 34.5 t ADT: 15,097

ON TSR 579

Good

Over: LFT BR YOUNG WOMANS CRK

2 MILES NORTH GLEASONTON, Clinton, PA

Built 2007 Load: 34.5 t ADT: 83

DEEP RUN ROAD

Good

Over: DEEP RUN CREEK

DUBLIN;BEDMINSTER16C11, Bucks, PA

Built 2006 Load: 34.5 t ADT: 1,397

SINSHEIM ROAD

Good

Over: CODORUS CREEK

2 MILES WEST OF JEFFERSON, York, PA

Built 2007 Load: 34.5 t ADT: 2,300

S.R 3025

Good

Over: ELK LAKE STREAM

600 SOUTH OF S.R. 3023, Susquehanna, PA

Built 2007 Load: 34.5 t ADT: 110

T-502 (BOTH TWPS.)

Good

Over: W. BR. MESHOPPEN CREEK

2 MILES N.E. OF MESHOPPEN, Wyoming, PA

Built 2008 Load: 34.5 t ADT: 120

T522 (ELY LAKE RD)

Good

Over: MESHOPPEN CREEK

3.5 MILES SE OF MONTROSE, Susquehanna, PA

Built 2008 Load: 34.5 t ADT: 75

PA 160

Good

Over: LAUREL RUN

0.25 MI N OF CENTRAL CITY, Somerset, PA

Built 2010 Load: 34.5 t ADT: 2,612

GUN CLUB RD

Good

Over: TRIB OF CONEWAGO CREEK

GUN CLUB ROAD BRIDGE, Adams, PA

Built 2006 Load: 34.5 t ADT: 50

BAKERSTOWN RD

Good

Over: BULL CREEK

200 NORTHWEST OF SR 1034, Allegheny, PA

Built 1934 Load: 34.7 t ADT: 3,497

PRESTO SYGAN RD

Good

Over: THOMS RUN

INTERSECTI THOMS RUN RD, Allegheny, PA

Built 1935 Load: 34.7 t ADT: 5,723

JACKS RUN RD

Good

Over: JACKS RUN

JA04 JACKS RUN NO. 4, Allegheny, PA

Built 1980 Load: 34.7 t ADT: 2,994

Showing 13,801-13,850 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.