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

Poor

Over: COFFEE RUN

.5 MI.E.OF ENTRIKEN, Huntingdon, PA

Built 1953 Load: 32.7 t ADT: 31

T392 HARMONY CHUR

Poor

Over: LITTLE TROUGH CREEK

TOWN OF CALVIN, Huntingdon, PA

Built 1960 Load: 32.7 t ADT: 50

MAIN STREET

Poor

Over: MILL CREEK

MILL CREEK BORO., Huntingdon, PA

Built 1920 Load: 32.7 t ADT: 284

SR2002

Poor

Over: NORFOLK SOUTHERN RR

BLAIRSVILLE, Indiana, PA

Built 1907 Load: 32.7 t ADT: 7,696

SR3013

Poor

Over: MUDDY RUN

MUDDY RUN NO.3, Indiana, PA

Built 1956 Load: 32.7 t ADT: 657

SR4030

Poor

Over: MARSH RUN

CARTER AVENUE, Indiana, PA

Built 1957 Load: 32.7 t ADT: 2,033

SR 3014

Poor

Over: DOYLE RUN

2 MI S NOOK, Juniata, PA

Built 1921 Load: 32.7 t ADT: 158

T-556 FOUNDRY RD

Poor

Over: TRIB. TO COCOLAMUS CREEK

.15 MI NE OF INT SR 35, Juniata, PA

Built 1938 Load: 32.7 t ADT: 610

WEBSTER AVENUE

Poor

Over: STAFFORD MEADOW BROOK

100 FT NE OF E. ELM ST., Lackawanna, PA

Built 1885 Load: 32.7 t ADT: 1,200

SR 8015 I-81 RAMP

Poor

Over: SR 0081 I-81

S AB TWP EX 194 OVER I-81, Lackawanna, PA

Built 1961 Load: 32.7 t ADT: 11,813

PA 272; reading rd

Poor

Over: LITTLE MUDDY CREEK

ADAMSTOWN BORO, Lancaster, PA

Built 1941 Load: 32.7 t ADT: 9,074

SR 1024 Lincoln rd

Poor

Over: MIDDLE CREEK

1.5 MI.E. OF BRUNNERVILLE, Lancaster, PA

Built 1925 Load: 32.7 t ADT: 2,469

SR 3005; TWP RD

Poor

Over: CONEWINGO CREEK

1 MI SE OF DRUMORE CENTER, Lancaster, PA

Built 1920 Load: 32.7 t ADT: 496

SR4032 Mountain Rd

Poor

Over: CHIQUES CREEK

0.2 MI.E. OF T.R. 72, Lancaster, PA

Built 1920 Load: 32.7 t ADT: 984

T-854 ROCK RD

Poor

Over: MIDDLE CREEK

1/2 MILE SW OF SR 322, Lancaster, PA

Built 1940 Load: 32.7 t ADT: 260

T-334 LONG LANE

Poor

Over: DONEGAL CREEK

500 FT NE OF SR 441, Lancaster, PA

Built 1950 Load: 32.7 t ADT: 700

KRAYBILL CHURCH RD

Poor

Over: W BR DONEGAL CREEK

1/2 MI NE OF SR 4046, Lancaster, PA

Built 1930 Load: 32.7 t ADT: 310

T-545 STUMPTOWN RD

Poor

Over: TRIB MILL CREEK

3/4 MI WEST OF SR 2045, Lancaster, PA

Built 1920 Load: 32.7 t ADT: 515

T-655 BEECHDALE RD

Poor

Over: MILL CREEK

1 MI NW OF SR 340, Lancaster, PA

Built 1920 Load: 32.7 t ADT: 570

FREW MILL RD

Poor

Over: BRANCH BIG RUN

1000 EAST OF TWP. RD.466, Lawrence, PA

Built 1939 Load: 32.7 t ADT: 682

T-601 JONESTOWN RD

Poor

Over: SWATARA CREEK

0.4 MI W OF WALNUT STREET, Lebanon, PA

Built 1929 Load: 32.7 t ADT: 1,500

SR1004;LR39032/125

Poor

Over: LEHIGH RIVER

RACE ST. BRIDGE, Lehigh, PA

Built 1957 Load: 32.7 t ADT: 10,691

SR 2010 (LR 39109)

Poor

Over: LITTLE LEHIGH CREEK

FISH HATCHERY ROAD, Lehigh, PA

Built 1939 Load: 32.7 t ADT: 7,302

SR 0029 TR 29

Poor

Over: CEASETOWN DAM OUTLET

PLYMOUTH TWP .3M N SR1059, Luzerne, PA

Built 1932 Load: 32.7 t ADT: 1,669

SR 0309 TR 309

Poor

Over: LEONARDS CREEK

DALLAS TWP .1 M N SR 1026, Luzerne, PA

Built 1940 Load: 32.7 t ADT: 6,948

SR 1009 MARKET ST

Poor

Over: SUSQUEHANNA RIVER

WILKES BARRE OVER SUSQ RV, Luzerne, PA

Built 1926 Load: 32.7 t ADT: 14,585

SR1021 E EIGHTH ST

Poor

Over: ABRAHAMS CREEK

W WYOM BORO .5M N SR1010, Luzerne, PA

Built 1925 Load: 32.7 t ADT: 6,647

SR 3006

Poor

Over: BRANCH OF POND CREEK

SLOCUM TWP .4 M W SR 3007, Luzerne, PA

Built 1966 Load: 32.7 t ADT: 893

T-434

Poor

Over: MOSQUITO CREEK

1.3 MI. S OF DUBOISTOWN, Lycoming, PA

Built 1926 Load: 32.7 t ADT: 250

T-447 TWP. BR #333

Poor

Over: LAUREL RUN

0.6 MI. S. OF MORELAND, Lycoming, PA

Built 1920 Load: 32.7 t ADT: 20

E. 7TH AVE.BR#211

Poor

Over: HAGERMANS RUN

SOUTH WILLIAMSPORT BORO, Lycoming, PA

Built 1928 Load: 32.7 t ADT: 400

SR 246-PA 246

Poor

Over: KENDALL CREEK

CORWINS CORNER, McKean, PA

Built 1954 Load: 32.7 t ADT: 1,037

SR 346-PA 346

Poor

Over: TRAM HOLLOW RUN

W DUKE CENTER, McKean, PA

Built 1924 Load: 32.7 t ADT: 1,177

SR 3003

Poor

Over: LANIGAN RUN

BURNING WELL, McKean, PA

Built 1948 Load: 32.7 t ADT: 22

SR 846 SARANAC RD.

Poor

Over: OVER SHENANGO RESERVOIR

SOUTH PYMATUNING TOWNSHIP, Mercer, PA

Built 1964 Load: 32.7 t ADT: 1,822

SR 3006 SR 3006

Poor

Over: SR 8005

LEWISTOWN BORO, Mifflin, PA

Built 1965 Load: 32.7 t ADT: 1,732

SR 103-PA 103

Poor

Over: SR 8005

LEWISTOWN BORO, Mifflin, PA

Built 1965 Load: 32.7 t ADT: 1,732

T-465

Poor

Over: TREASTER RUN

800 FT SOUTH OF LR499, Mifflin, PA

Built 1915 Load: 32.7 t ADT: 200

T-439

Poor

Over: KISHACOQUILLAS CREEK

1300FT W INTER T439-LR29, Mifflin, PA

Built 1920 Load: 32.7 t ADT: 628

T-321

Poor

Over: MEADOW CREEK

700 FT WEST OF T-737, Mifflin, PA

Built 1915 Load: 32.7 t ADT: 75

T-803

Poor

Over: MUSSER RUN

WEST END OF MCVEYTOWN, Mifflin, PA

Built 1922 Load: 32.7 t ADT: 127

PA 191(LR45051)

Poor

Over: MOUNTAIN RUN CREEK

2.2 MI.S.OF STROUDSBURG, Monroe, PA

Built 1916 Load: 32.7 t ADT: 3,530

SR 1016(LR 45015)

Poor

Over: POND CREEK

SELLERSVILLE DRIVE, Monroe, PA

Built 1929 Load: 32.7 t ADT: 1,063

RIVER RD (T-515)

Poor

Over: SAND HILL CREEK

SHOEMAKERS, Monroe, PA

Built 1934 Load: 32.7 t ADT: 450

STADDEN RD

Poor

Over: POCONO CREEK

0.25 M.W OF RT 611, Monroe, PA

Built 1935 Load: 32.7 t ADT: 100

T-633 HYPSY GAP RD

Poor

Over: TUNKHANNOCK CK

1 MI SE SR 4001, Monroe, PA

Built 1900 Load: 32.7 t ADT: 20

LIMEKILN PIKE

Poor

Over: PARK CREEK

HORSHAM TWP. 24C5/3145K8, Montgomery, PA

Built 1928 Load: 32.7 t ADT: 8,796

WATER STREET ROAD

Poor

Over: BRANCH SKIPPACK CREEK

NW OF 363 21C8/3142H10, Montgomery, PA

Built 1932 Load: 32.7 t ADT: 1,194

RIDGE PIKE

Poor

Over: NORFOLK SOUTHERN RR

3368-A4 ADC, Montgomery, PA

Built 1936 Load: 32.7 t ADT: 36,517

SWAMP PIKE

Poor

Over: MINISTER CREEK

0.2 M E SR663 ADC 3027-G3, Montgomery, PA

Built 1844 Load: 32.7 t ADT: 14,811

Showing 22,401-22,450 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.