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 3010

Fair

Over: SPRING CREEK

LEMONT, Centre, PA

Built 1959 Load: 49.9 t ADT: 3,358

T-325 GORTON ROAD

Fair

Over: BLACK MOSHANNON CREEK

7400 FT SW INT SR 144, Centre, PA

Built 1975 Load: 49.9 t ADT: 50

OLD MOREHALL ROAD

Fair

Over: VALLEY CREEK

.4 Mi N US-202 3474-E1, Chester, PA

Built 1987 Load: 49.9 t ADT: 420

ROSEDALE RD.(T628)

Fair

Over: E. BRANCH RED CLAY CRK

1.1 Mi S US-1 3802-B5, Chester, PA

Built 1954 Load: 49.9 t ADT: 750

RAMP EB

Fair

Over: ROUTE 30;RAMPS S & X

30/202 INTERCHNG 22D10, Chester, PA

Built 1995 Load: 49.9 t ADT: 17,332

SR0066 NB&SB

Fair

Over: SR0080 WB

GREENVILLE PIKE NO.2, Clarion, PA

Built 1965 Load: 49.9 t ADT: 5,594

SR4027

Fair

Over: DEER CREEK

KNIGHTOWN RD, Clarion, PA

Built 1950 Load: 49.9 t ADT: 33

SR4029

Fair

Over: PAINT CREEK

PAINT MILLS, Clarion, PA

Built 1961 Load: 49.9 t ADT: 207

T-562 SARVEY MILL

Fair

Over: TOBY CREEK

1.2 mi NW int. w/ SR1005, Clarion, PA

Built 1996 Load: 49.9 t ADT: 50

SR 219-US 219

Fair

Over: LITTLE ANDERSON CREEK

CHESTNUT GROVE, Clearfield, PA

Built 1921 Load: 49.9 t ADT: 2,497

SR 729-PA 729

Fair

Over: GAZZAM RUN

1 MI N ANSONVILLE, Clearfield, PA

Built 1934 Load: 49.9 t ADT: 719

SR 120-PA 120

Fair

Over: COOKES RUN

4 MILE WEST WESTPORT, Clinton, PA

Built 1985 Load: 49.9 t ADT: 660

SR 150-PA 150

Fair

Over: FISHING CREEK

MILL HALL, Clinton, PA

Built 1985 Load: 49.9 t ADT: 11,913

ON TSR 342

Fair

Over: FISHING CREEK

CLINTONDALE, Clinton, PA

Built 1950 Load: 49.9 t ADT: 1,618

SR 42

Fair

Over: OVER SR 11

0.5 MI W OF BLOOMSBURG, Columbia, PA

Built 1970 Load: 49.9 t ADT: 12,914

JERSEYTOWN RD

Fair

Over: SPRUCE RUN

1.5 MILES SW OF MILLVILLE, Columbia, PA

Built 1970 Load: 49.9 t ADT: 2,949

SR 487

Fair

Over: ABANDONED RAILROAD

LIGHTSTREET, Columbia, PA

Built 1973 Load: 49.9 t ADT: 5,174

SR 1018 ARMSTRONG

Fair

Over: OVER MUDDY CREEK

ATHENS TOWNSHIP, Crawford, PA

Built 1991 Load: 49.9 t ADT: 82

SR 2034 ROGERS FRY

Fair

Over: OVER CUSSEWAGO CREEK

HAYFIELD TOWNSHIP, Crawford, PA

Built 1963 Load: 49.9 t ADT: 361

SKYPORT RD. T-613

Fair

Over: PA 581;SR 0581 CAPT.BELT

1MILE NORTH OF US11, Cumberland, PA

Built 1995 Load: 49.9 t ADT: 3,786

ST. JOHNS ROAD

Fair

Over: CEDAR RUN

.4 SW CAPITAL CITY MALL, Cumberland, PA

Built 1960 Load: 49.9 t ADT: 50

ROUSH BRIDGE T470

Fair

Over: YELLOW BREECHES CREEK

3W MT.HOLLY SPRNG/YEL.BR., Cumberland, PA

Built 1958 Load: 49.9 t ADT: 73

FRYTOWN ROAD T-441

Fair

Over: BLOSER CREEK

0.3 MI E OF SR 4021, Cumberland, PA

Built 1983 Load: 49.9 t ADT: 350

I-83; SR 0083

Fair

Over: SPRING CR City Park Dr

SWATARA TOWNSHIP, Dauphin, PA

Built 1961 Load: 49.9 t ADT: 72,252

I-283 SB; SR 0283

Fair

Over: US 322WB SR 8030 RAMP E

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 Load: 49.9 t ADT: 25,249

PA 443; SR 0443

Fair

Over: FISHING CREEK

3 MI. N.E. FT. HUNTER, Dauphin, PA

Built 1930 Load: 49.9 t ADT: 1,556

SR 2042;TWP RD 337

Fair

Over: SR 3032

1.5 MI. N. HIGHSPIRE, Dauphin, PA

Built 1976 Load: 49.9 t ADT: 2,794

BRINSER ROAD;T490

Fair

Over: AMTRAK

SE ROYALTON/AMTRAK RR, Dauphin, PA

Built 1996 Load: 49.9 t ADT: 25

MID-COUNTY EXWY.NB

Fair

Over: CRUM CREEK

SMEDLEY PARK 34G04, Delaware, PA

Built 1990 Load: 49.9 t ADT: 40,282

MID-COUNTY EXWY.SB

Fair

Over: CRUM CREEK

SMEDLEY PARK 34G04, Delaware, PA

Built 1990 Load: 49.9 t ADT: 41,753

BROOKHAVEN ROAD

Fair

Over: RIDLEY CREEK

.5MI.NE.TR 352 34D13, Delaware, PA

Built 1964 Load: 49.9 t ADT: 15,010

SR 120-PA 120

Fair

Over: ELK CREEK

CITY OF ST MARYS, Elk, PA

Built 1957 Load: 49.9 t ADT: 10,759

T-410 REDWOOD AVE

Fair

Over: BENNETT BR SINNEMAHONING

1200 FT NE OF SR 255 INTE, Elk, PA

Built 1988 Load: 49.9 t ADT: 250

SR 8 WATTSBURG RD.

Fair

Over: OVER FRENCH CREEK TRIB

VENANGO TOWNSHIP, Erie, PA

Built 1964 Load: 49.9 t ADT: 3,356

SR 4024 ROBINSON R

Fair

Over: OVER WALNUT CREEK

SUMMIT TOWNSHIP, Erie, PA

Built 1963 Load: 49.9 t ADT: 1,974

SR 0043

Fair

Over: SR 3015

GEORGES TOWNSHIP, Fayette, PA

Built 1992 Load: 49.9 t ADT: 8,323

SR 0119

Fair

Over: SR 2027

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 49.9 t ADT: 17,038

SR 0201

Fair

Over: BR OF LITTLE REDSTONE CK

WASHINGTON TOWNSHIP, Fayette, PA

Built 1917 Load: 49.9 t ADT: 2,950

SR 3009

Fair

Over: SR 0040

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1972 Load: 49.9 t ADT: 9,561

US 11 NB; SR 0011

Fair

Over: FALLING SPRINGS CR

CHAMBERSBURG BORO, Franklin, PA

Built 1909 Load: 49.9 t ADT: 8,162

PA TPK (I-76)

Fair

Over: SR 0075

METAL TWP, Franklin, PA

Built 1939 Load: 49.9 t ADT: 21,433

US 522 (LR 193)

Fair

Over: PA TPK (I-76)

NEAR FORT LITTLETON INTG, Fulton, PA

Built 1939 Load: 49.9 t ADT: 3,505

T372 RAVENSBURG RD

Fair

Over: COVE CREEK

1 MI.W.OF WEBSTER MILLS, Fulton, PA

Built 1992 Load: 49.9 t ADT: 31

PA 26

Fair

Over: CROOKED CREEK

460 FEET NORTH OF SR 3039, Huntingdon, PA

Built 1950 Load: 49.9 t ADT: 4,511

PA 305

Fair

Over: SHAVERS CREEK

452 FEET WEST OF SR 4009, Huntingdon, PA

Built 1938 Load: 49.9 t ADT: 1,337

PA 913

Fair

Over: SHOUPS RUN

0.5 MI E BEDFORD CO LINE, Huntingdon, PA

Built 1989 Load: 49.9 t ADT: 2,944

PA 994

Fair

Over: GREAT TROUGH CREEK

0.2 MILE EAST OF SR 3019, Huntingdon, PA

Built 1963 Load: 49.9 t ADT: 335

SR0022 EB&WB

Fair

Over: NORFOLK SOUTHERN RR

BLAIRSVILLE NO.5, Indiana, PA

Built 1953 Load: 49.9 t ADT: 26,733

SR0422 EB

Fair

Over: T-840 CHESTNUT RIDGE RD

CHESTNUT RIDGE EB, Indiana, PA

Built 1969 Load: 49.9 t ADT: 4,058

SR0422 WB

Fair

Over: T-840 CHESTNUT RIDGE RD

CHESTNUT RIDGE WB, Indiana, PA

Built 1969 Load: 49.9 t ADT: 4,099

Showing 10,551-10,600 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.