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

T516 (CARTER ROAD)

Good

Over: Burdick Creek

1.5 MI SE OF DIMOCK, Susquehanna, PA

Built 2020 Load: 35.6 t ADT: 50

SR 1001 (LR 13012)

Good

Over: WILD CREEK

PENN FOREST, Carbon, PA

Built 1956 Load: 36.0 t ADT: 368

SR 408 THOMPSON ST

Good

Over: OVER OIL CREEK

HYDETOWN BOROUGH, Crawford, PA

Built 1930 Load: 36.0 t ADT: 1,532

SR 2031 PERRY ST.

Good

Over: OVER THOMPSON RUN

OIL CREEK TOWNSHIP, Crawford, PA

Built 1961 Load: 36.0 t ADT: 221

SR 3007

Good

Over: Mountain Creek

1.3 mi N of SR 0857, Fayette, PA

Built 1959 Load: 36.0 t ADT: 1,218

SR 4028

Good

Over: CRABAPPLE RUN

FRANKLIN TOWNSHIP, Fayette, PA

Built 1949 Load: 36.0 t ADT: 675

SR 1017(LR 45070)

Good

Over: BUCK HILL CREEK

VILLAGE OF BUCKHILL FALLS, Monroe, PA

Built 1956 Load: 36.0 t ADT: 1,002

T448 MAHANTONGO MT

Good

Over: MAHANTANGO CREEK

500 FT SOUTH OF SR 4014, Schuylkill, PA

Built 1973 Load: 36.0 t ADT: 400

VALLEYVIEW ROAD

Good

Over: RACCOON CREEK trib

200 EAST OF FOLEY RD, Washington, PA

Built 1904 Load: 36.0 t ADT: 40

SR 0271

Good

Over: MILL CREEK

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1940 Load: 36.0 t ADT: 4,213

SR 2060

Good

Over: Trib. N. Br. Muddy Run

2 Miles E of Winterstown, York, PA

Built 1966 Load: 36.0 t ADT: 447

SR 79 NB

Good

Over: OVER NS R.R. T-701

UNION TOWNSHIP, Crawford, PA

Built 2003 Load: 36.0 t ADT: 6,554

LONDON TRACT ROAD

Good

Over: WHITE CLAY CREEK

NEAR STRICKERSVILE 54E8, Chester, PA

Built 2005 Load: 36.0 t ADT: 900

SR 0366

Good

Over: Little Pucketa Creek

City of New Kensington, Westmoreland, PA

Built 2007 Load: 36.0 t ADT: 13,305

PA194/Hbg St

Good

Over: Conewago Creek

East Berlin, Adams, PA

Built 2009 Load: 36.0 t ADT: 3,879

SR 2002;Marsh Rd.

Good

Over: W. Br. Antietam Creek

0.5 Mi S. of Waynesboro, Franklin, PA

Built 2010 Load: 36.0 t ADT: 1,026

SR 0011 TR 11

Good

Over: HARVEYS CREEK

PLYMOUTH TWP JCT TR 29, Luzerne, PA

Built 2011 Load: 36.0 t ADT: 10,880

WALTON ROAD

Good

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

.5 MI. N. I-276 3256E10, Montgomery, PA

Built 2011 Load: 36.0 t ADT: 17,046

HAIN AVENUE

Good

Over: LAUREL RUN

WEST OF RTE. 61, Berks, PA

Built 2011 Load: 36.0 t ADT: 200

MCKRELL RD

Good

Over: LITTLE DEER CREEK

DL06 LIT DEER CRK NO 6, Allegheny, PA

Built 2011 Load: 36.0 t ADT: 2,036

UNION RD.

Good

Over: Trib Little Swatara Cr.

1 MI.N. OF MT.ZION, Lebanon, PA

Built 2011 Load: 36.0 t ADT: 825

SR 4005 (LR 55064)

Good

Over: PTC B-409 MP 104.92

1.2 MI. S. OF ALLENVALE, Somerset, PA

Built 2011 Load: 36.0 t ADT: 510

US 202 PARKWAY

Good

Over: NEW BRITAIN ROAD

.25 MI. S. PA 611 3034H04, Bucks, PA

Built 2012 Load: 36.0 t ADT: 16,428

SR 2004

Good

Over: FISHING CREEK

CEDAR SPRING, Clinton, PA

Built 2011 Load: 36.0 t ADT: 847

SR 3066; TWP RD

Good

Over: W BR CODORUS CREEK

3.5 MILE SE OF HANOVER, York, PA

Built 2012 Load: 36.0 t ADT: 1,621

SR 1017

Good

Over: EAST BRANCH BRIAR CREEK

3 MI NW OF BERWICK, Columbia, PA

Built 2012 Load: 36.0 t ADT: 644

SR 0070

Good

Over: SR 3031

exit 49 on SR 0070, Westmoreland, PA

Built 2012 Load: 36.0 t ADT: 27,989

SR 4032; TWP RD

Good

Over: BR BERMUDIAN CREEK

3 MI SW OF WELLSVILLE, York, PA

Built 2012 Load: 36.0 t ADT: 356

SR 2013

Good

Over: BENNYS RUN

1 MI W OF WEIGH SCALE, Northumberland, PA

Built 2012 Load: 36.0 t ADT: 134

FREEMAN SCHOOL RD.

Good

Over: EAST BR. PERKIOMEN CREEK

0.7 Mi NW PA 113 3030-E6, Montgomery, PA

Built 2012 Load: 36.0 t ADT: 4,675

SR 2010

Good

Over: THORN CREEK

2.3 mi W SR 356 Intersect, Butler, PA

Built 2012 Load: 36.0 t ADT: 2,431

SR 27 GRAND STREET

Good

Over: HOSMER CREEK

PITTSFIELD TWP, Warren, PA

Built 2012 Load: 36.0 t ADT: 1,938

SR 2022

Good

Over: MAHANTANGO CREEK

5 MI W MEISERVILLE, Juniata, PA

Built 2012 Load: 36.0 t ADT: 69

PA 116; SR 0116

Good

Over: ROCK CREEK

GETTYSBURG, Adams, PA

Built 2012 Load: 36.0 t ADT: 7,355

HUCKLEBERRY ROAD

Good

Over: BLACK MOSHANNON CREEK

N BLACK MOSHANNON ST PARK, Centre, PA

Built 2012 Load: 36.0 t ADT: 15

SALFORD STATION RD

Good

Over: PERKIOMEN CREEK

1 MI. E. PA-29 3029G03, Montgomery, PA

Built 2012 Load: 36.0 t ADT: 715

SR 477-PA 477

Good

Over: LONG RUN

SALONA, Clinton, PA

Built 2012 Load: 36.0 t ADT: 2,519

SR 2009 (T830)

Good

Over: TRIBUTARY SHAMOKIN CREEK

RALPHO TWP RD T-830, Northumberland, PA

Built 2013 Load: 36.0 t ADT: 579

SR 0259

Good

Over: W BR RICHARDS RUN

1.4 M N of BOLIVAR, Indiana, PA

Built 2013 Load: 36.0 t ADT: 943

SR 0949

Good

Over: MILL CREEK

1.1 MI SW SR 4001 INTER., Jefferson, PA

Built 2013 Load: 36.0 t ADT: 625

SR 2011

Good

Over: Potato Run

1.8 mi S from SR 0019, Washington, PA

Built 2013 Load: 36.0 t ADT: 1,400

Grant Street T-477

Good

Over: Redstone Creek

Leith/Behnd U-town H.S., Fayette, PA

Built 2013 Load: 36.0 t ADT: 1,200

SR 2012

Good

Over: PENNS CREEK

3 MI SW COBURN, Centre, PA

Built 2013 Load: 36.0 t ADT: 315

STATE STREET

Good

Over: CANAL BASIN

0.5 MI N OF N PARK&STAT, Erie, PA

Built 2012 Load: 36.0 t ADT: 3,827

PA645

Good

Over: SWATARA CREEK

SOUTH OF PINE GROVE, Schuylkill, PA

Built 2013 Load: 36.0 t ADT: 3,247

SR 2018 DECKARDS R

Good

Over: DECKARDS RUN

WAYNE TWP., Crawford, PA

Built 2013 Load: 36.0 t ADT: 454

SR 2037

Good

Over: CASSELMAN RIVER

GARRETT, Somerset, PA

Built 2013 Load: 36.0 t ADT: 557

SR 4006

Good

Over: DYBERRY CREEK

DYBERRY TWP JCT TR 191, Wayne, PA

Built 2014 Load: 36.0 t ADT: 259

SR 2006

Good

Over: FLAUGHERTY CREEK

1.9 MILE EAST OF TR 219, Somerset, PA

Built 2014 Load: 36.0 t ADT: 1,381

T-402 KNOX ROAD

Good

Over: COWANESQUE RIVER

1.2 MI SW KNOXVILLE, Tioga, PA

Built 2014 Load: 36.0 t ADT: 36

Showing 14,351-14,400 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.