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 2004 MILBURN RD

Good

Over: NESHANNOCK CK

SPRINGFIELD TOWNSHIP, Mercer, PA

Built 2007 Load: 32.4 t ADT: 245

SR 1014

Good

Over: SR 0070

SOUTH STRABANE TWP, Washington, PA

Built 2006 Load: 32.4 t ADT: 702

SR 4049

Good

Over: SR 0070

1.3 MI SOUTH OF SR 4020, Washington, PA

Built 2006 Load: 32.4 t ADT: 4,058

SR 1018

Good

Over: KEYSTONE LAKE

2.85 MI E FROM SR 0981, Westmoreland, PA

Built 2008 Load: 32.4 t ADT: 1,799

WHITE HORSE ROAD

Good

Over: PICKERING CREEK

NR WILLIAMS CORNER 15E9, Chester, PA

Built 2011 Load: 32.4 t ADT: 5,168

81 NB

Good

Over: Conococheague

3.25 Mi n of 30, Franklin, PA

Built 2010 Load: 32.4 t ADT: 22,143

81 SB Road

Good

Over: Conococheague

3.25 mi n of 30, Franklin, PA

Built 2010 Load: 32.4 t ADT: 22,150

SR 0027

Good

Over: OVER LITTLE BROKENSTRAW

PITTSFIELD TWP, Warren, PA

Built 2011 Load: 32.4 t ADT: 2,285

T-899 Kreitz Road

Good

Over: Little Conneauttee Creek

2.5 mi N Cambridge Spring, Crawford, PA

Built 2011 Load: 32.4 t ADT: 250

SR 0090 EB

Good

Over: OVER SIX MILE CREEK

HARBOR CREEK TWP, Erie, PA

Built 2011 Load: 32.4 t ADT: 12,282

Lovell Rd SR 2018

Good

Over: FRENCH CREEK S BR

CONCORD TWP, Erie, PA

Built 2011 Load: 32.4 t ADT: 471

Lake/Sea SR 322

Good

Over: OVER HALLS RUN

CRANBERRY TWP, Venango, PA

Built 2011 Load: 32.4 t ADT: 6,923

Phlpsvl.Rd SR 1011

Good

Over: ALDER RUN

VENANGO TWP, Erie, PA

Built 2011 Load: 32.4 t ADT: 596

SR 4007

Good

Over: SUGAR CREEK

150ft N SR 68 Intersect., Armstrong, PA

Built 2011 Load: 32.4 t ADT: 170

SR 1029

Good

Over: BULLARD CREEK

2 MILES NORTH OF N. ROME, Bradford, PA

Built 2011 Load: 32.4 t ADT: 185

T-328 COUNTY BR 17

Good

Over: TOWANDA CREEK

0.2 MI S. INT. SR 414, Bradford, PA

Built 2011 Load: 32.4 t ADT: 50

SR 4010

Good

Over: HUNTINGTON

HNTIGTON TWP 100E SR4006, Luzerne, PA

Built 2012 Load: 32.4 t ADT: 441

PA TPK (Toll 43)

Good

Over: Cox Run SR 4003

West of Exit 26, Fayette, PA

Built 2011 Load: 32.4 t ADT: 2,000

SUMNEYTOWN PIKE

Good

Over: SKIPPACK CREEK

MAINLAND 3031C10, Montgomery, PA

Built 2012 Load: 32.4 t ADT: 15,258

SR 1045 Steinmetz

Good

Over: COCALICO CREEK

0.25 MI.W. OF DENVER BORO, Lancaster, PA

Built 2012 Load: 32.4 t ADT: 2,102

PA TPK (I-476 NB)

Good

Over: LVRR Lehigh R PA 248

Parryville Boro, Carbon, PA

Built 2012 Load: 32.4 t ADT: 24,228

PA TPK (I-476 SB)

Good

Over: Pohopoco Cr &LowerMainSt

Parryville, Carbon, PA

Built 2012 Load: 32.4 t ADT: 39,509

SR1008 SIDEHILL RD

Good

Over: TWELVE MILE CREEK

NORTH EAST TWP, Erie, PA

Built 2012 Load: 32.4 t ADT: 467

SR 0038

Good

Over: CONNOQUENESSING CR.

5.5 mi S SR138 Intersec., Butler, PA

Built 2012 Load: 32.4 t ADT: 3,904

SR 0081 I-81 SB

Good

Over: RR & STAFFORD MEADOW BR

SCRANTON CTY 2M N SR 3016, Lackawanna, PA

Built 2012 Load: 32.4 t ADT: 31,151

SR 4003 CHESTNUT

Good

Over: FOSTER RUN

CONNEAUTVILLE BOROUGH, Crawford, PA

Built 2012 Load: 32.4 t ADT: 899

PA 96

Good

Over: RAYSTOWN BR JUNIATA RIV

1.8 MI NW MANNS CHOICE, Bedford, PA

Built 2012 Load: 32.4 t ADT: 705

T-601 Jonestown Rd

Good

Over: Bow Creek

.5SW Grntvle/TR-Swtra/EHT, Dauphin, PA

Built 2012 Load: 32.4 t ADT: 2,000

U.S. 202 PARKWAY

Good

Over: NESHAMINY CREEK

1.5MI E PA152 3034C5/28E4, Bucks, PA

Built 2012 Load: 32.4 t ADT: 13,409

U.S. 202 PARKWAY

Good

Over: UNNAMED BR. NESHAMINY CR

1 MI S. PA611 3034F4/28H3, Bucks, PA

Built 2012 Load: 32.4 t ADT: 16,428

Ramp C

Good

Over: Atwater Drive

SR 29 Interchange, Chester, PA

Built 2012 Load: 32.4 t ADT: 2,000

W. Bainbridge St.

Good

Over: Conoy Creek

1 Block W of Market St., Lancaster, PA

Built 2011 Load: 32.4 t ADT: 5,395

REYNOLDS RUN ROAD

Good

Over: REYNOLDS RUN

ELK TOWNSHIP, Warren, PA

Built 2012 Load: 32.4 t ADT: 70

SR 1001

Good

Over: MUDDY RUN

VILLAGE OF MAZEPPA, Union, PA

Built 2014 Load: 32.4 t ADT: 1,052

SUMNEYTOWN PIKE

Good

Over: I-476 (PA TPK. EXT.)

LANSDALE INTC. 3143E01, Montgomery, PA

Built 2013 Load: 32.4 t ADT: 17,156

SR 98 AVONIA ROAD

Good

Over: SR 90 EB/WB

FAIRVIEW TWP, Erie, PA

Built 2015 Load: 32.4 t ADT: 4,550

SR 4009 Husband Rd

Good

Over: PTC B-504 MP 108.17

PTC B-504 MP 108.17, Somerset, PA

Built 2015 Load: 32.4 t ADT: 2,470

SR 0917

Good

Over: SR 0070

4.8 mi N from SR 0136, Washington, PA

Built 2016 Load: 32.4 t ADT: 1,580

PA TPK (I-76)

Good

Over: Deer Creek

W of Allegheny Val Int., Allegheny, PA

Built 2016 Load: 32.4 t ADT: 33,531

Harrison Valley Rd

Good

Over: Marsh Creek

Mills, Potter, PA

Built 2016 Load: 32.4 t ADT: 1,596

OSBORNE ROAD

Good

Over: BEAVER CREEK

PA-340/3471-A8, Chester, PA

Built 2016 Load: 32.4 t ADT: 280

PA 419 (LR 310)

Good

Over: I-78

PA 419 / I-78 INTERCHANGE, Berks, PA

Built 2016 Load: 32.4 t ADT: 3,328

New Holland Road

Good

Over: ANGELICA CREEK

NEW HOLLAND ROAD, Berks, PA

Built 2018 Load: 32.4 t ADT: 5,085

PA TPK (I-76)

Good

Over: LR21032 SR0074

North Middleton Twp., Cumberland, PA

Built 2017 Load: 32.4 t ADT: 21,102

Barkley Road

Good

Over: Camp Run

400 E of T-522, Lawrence, PA

Built 2018 Load: 32.4 t ADT: 50

HICKORY LANE

Good

Over: HAASEN CREEK

HAAS BRIDGE, Lehigh, PA

Built 2017 Load: 32.4 t ADT: 140

SR 4026

Good

Over: Rowes Run

1.6 mi E from SR 4028, Fayette, PA

Built 2017 Load: 32.4 t ADT: 314

PA 114; SR 0114

Good

Over: TRIB OF YELLOW BREECHES

03MI E.OF YELLOW BREECHES, York, PA

Built 2017 Load: 32.4 t ADT: 1,358

SR 1010

Good

Over: BEAR CREEK

2.3 Mi E SR 38 Inter., Butler, PA

Built 2017 Load: 32.4 t ADT: 421

T-609 KANE HILL RD

Good

Over: FOUR MILE CREEK

GREENE TWP., Erie, PA

Built 2017 Load: 32.4 t ADT: 424

Showing 12,951-13,000 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.