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 0380 I-380 NB

Fair

Over: SR 2013

CLIFTON TWP OVER SR 2013, Lackawanna, PA

Built 1967 Load: 32.7 t ADT: 9,765

SR 0435 TR 435

Fair

Over: LEHIGH RIVER

CLIFTON TWP WAYNE CO LINE, Lackawanna, PA

Built 1927 Load: 32.7 t ADT: 5,317

SR 0435 TR 435

Fair

Over: ROARING BROOK

ELMHURST TWP .3M S TR 590, Lackawanna, PA

Built 1948 Load: 32.7 t ADT: 5,627

SR 0690 TR 690

Fair

Over: POTTER CREEK

MADISON TWP .1 M E I-84, Lackawanna, PA

Built 1960 Load: 32.7 t ADT: 1,086

SR 1009

Fair

Over: FALL BROOK

FELL TWP .5 M S SR 1007, Lackawanna, PA

Built 1962 Load: 32.7 t ADT: 411

SR 4012 WAVERLY RD

Fair

Over: N.S. RR

GLENBURN TWP .5 M E TR 6, Lackawanna, PA

Built 1913 Load: 32.7 t ADT: 1,041

SR4020 L WINOLA RD

Fair

Over: BR TUNKHANNOCK CREEK

W ABING TWP 200 W SR4018, Lackawanna, PA

Built 1943 Load: 32.7 t ADT: 729

US Route 30

Fair

Over: Susquehanna R;NSRR;T-791

Columbia Borough, Lancaster, PA

Built 1972 Load: 32.7 t ADT: 48,561

Eden Rd; T-717

Fair

Over: US 222; SR 0222

0.50 mi. N. of US 30, Lancaster, PA

Built 1969 Load: 32.7 t ADT: 7,156

US 222;N.B. SR0222

Fair

Over: SR 1029 AND KURTZ RUN

3.5 MI. N. OF US 30, Lancaster, PA

Built 1972 Load: 32.7 t ADT: 25,941

US 222 SB; SR 0222

Fair

Over: PA 772; SR 0772

BROWNSTOWN, Lancaster, PA

Built 1972 Load: 32.7 t ADT: 28,949

SR 1082; T-852

Fair

Over: US 222; SR 0222

1 MI. E. OF REAMSTOWN, Lancaster, PA

Built 1972 Load: 32.7 t ADT: 676

PA 241; W.High st

Fair

Over: CONOY CREEK

N OF SQ-ELIZABETHTN BORO, Lancaster, PA

Built 1910 Load: 32.7 t ADT: 5,680

PA324;New Danville

Fair

Over: Trib to Conestoga River

South Lancaster, Lancaster, PA

Built 1940 Load: 32.7 t ADT: 4,294

PA 340; SR 0340

Fair

Over: WET WEATHER STREAM

BIRD IN HAND, Lancaster, PA

Built 1951 Load: 32.7 t ADT: 12,096

PA 372;SR 0372

Fair

Over: Williams Run

CHRISTIANA BOROUGH, Lancaster, PA

Built 1941 Load: 32.7 t ADT: 2,440

Millersville Rd

Fair

Over: Conestoga River

1.25 MI.N.W. NEW DANVILLE, Lancaster, PA

Built 1957 Load: 32.7 t ADT: 14,688

PA 772; SR 0772

Fair

Over: CAT TAIL RUN

2 MI S.E. OF INTERCOURSE, Lancaster, PA

Built 1956 Load: 32.7 t ADT: 6,460

SR 1013

Fair

Over: GROFF CREEK

1.5 MI.S. OF VOGANSVILLE, Lancaster, PA

Built 1925 Load: 32.7 t ADT: 1,895

SR 1029 Snakehill

Fair

Over: TRIB TO CONESTOGA CREEK

N of 23 E of 222, Lancaster, PA

Built 1920 Load: 32.7 t ADT: 995

SR 1035

Fair

Over: MIDDLE CREEK

S. SIDE OF CLAY, Lancaster, PA

Built 1935 Load: 32.7 t ADT: 931

SR 1042

Fair

Over: MUDDY CREEK

0.75 MI NW OF BOWMANSVILL, Lancaster, PA

Built 1950 Load: 32.7 t ADT: 4,208

SR 1055

Fair

Over: SWAMP CREEK

REINHOLDS, Lancaster, PA

Built 1927 Load: 32.7 t ADT: 440

S Duke St

Fair

Over: Conestoga River

SE Corner of Lanc. City, Lancaster, PA

Built 1948 Load: 32.7 t ADT: 6,125

Twp Rd(SR3002)

Fair

Over: PETERS CREEK

PEACH BOTTOM, Lancaster, PA

Built 1927 Load: 32.7 t ADT: 123

River Rd(TWP. RD.)

Fair

Over: Fishing Creek

Near Liberty Square, Lancaster, PA

Built 1941 Load: 32.7 t ADT: 299

SR 3008; TWP RD

Fair

Over: E.BR.CONOWINGO CREEK

1MIE DRUMORE CENTER, Lancaster, PA

Built 1941 Load: 32.7 t ADT: 251

SR 3009

Fair

Over: AMTRAK Enola Low GrTrail

1 MI.W. OF SMITHVILLE, Lancaster, PA

Built 1986 Load: 32.7 t ADT: 1,443

Scotland Rd

Fair

Over: Conowingo Creek

Hopkins Mill, Lancaster, PA

Built 1927 Load: 32.7 t ADT: 1,771

ELIZABETHTOWN RD.

Fair

Over: CHICKIES CREEK OVERFLOW

LAKE MANHEIM FISH RESERVE, Lancaster, PA

Built 1980 Load: 32.7 t ADT: 1,218

SR 4035

Fair

Over: WET WEATHER STREAM

MOUNT JOY BORO, Lancaster, PA

Built 1960 Load: 32.7 t ADT: 471

SR 1035 LR 36011

Fair

Over: PA TPK (I-76)

05 MILE N OF NEWTOWN, Lancaster, PA

Built 1950 Load: 32.7 t ADT: 1,344

SR 1052 LR 36170

Fair

Over: PA TPK (I-76)

N MT AIRY, Lancaster, PA

Built 1950 Load: 32.7 t ADT: 330

PA TPK (I-76)

Fair

Over: T-750 COCALICO CR

WEST COCALICO TWP, Lancaster, PA

Built 1949 Load: 32.7 t ADT: 24,971

LR 36169 SR 1059

Fair

Over: PA TPK (I-76)

1MI SOF SWARTZVILLE, Lancaster, PA

Built 1950 Load: 32.7 t ADT: 2,144

T-389 DRY WELLS RD

Fair

Over: W BR OCTORARO CREEK

1 MI SW OF SR 896, Lancaster, PA

Built 1940 Load: 32.7 t ADT: 245

T-932 WATER ST

Fair

Over: LITTLE CONESTOGA CRK

2000 FT NORTH OF SR 23, Lancaster, PA

Built 1979 Load: 32.7 t ADT: 155

KURTZ ROAD

Fair

Over: CONESTOGA RIVER

.45 MILES SOUTH OF SR1010, Lancaster, PA

Built 1973 Load: 32.7 t ADT: 680

T-374 Sylvan Rd

Fair

Over: SWARR RUN

600 FT NE OF SR 4020, Lancaster, PA

Built 1976 Load: 32.7 t ADT: 205

T-793 S CHIQUES RD

Fair

Over: CHIQUES CREEK

3/4 MI NW OF SR 4001, Lancaster, PA

Built 1921 Load: 32.7 t ADT: 310

T-535 MSSR SCHL RD

Fair

Over: MILL CREEK

3/4 MI EAST OF T-692, Lancaster, PA

Built 1921 Load: 32.7 t ADT: 365

T-490 KING PEN RD

Fair

Over: McCREARY RUN

1600 FT NORTH OF SR 2007, Lancaster, PA

Built 1975 Load: 32.7 t ADT: 50

T-490 KING PEN RD

Fair

Over: W BR OCTORARO CRK TRIB

1200 FT SE OF SR 2009, Lancaster, PA

Built 1995 Load: 32.7 t ADT: 25

T-332 CAMP RD

Fair

Over: LITTLE CHIQUES CREEK

1 MI SW OF SR 4029, Lancaster, PA

Built 1986 Load: 32.7 t ADT: 400

T-843 SCHWANGER RD

Fair

Over: DONEGAL CREEK

1500 FT EAST OF SR 4025, Lancaster, PA

Built 1987 Load: 32.7 t ADT: 425

PENRYN ROAD T-560

Fair

Over: TRIB. TO CHIQUES CREEK

0.75 MI NORTH OF SR 772, Lancaster, PA

Built 1980 Load: 32.7 t ADT: 1,300

T-413 PENNSY ROAD

Fair

Over: TRIB BIG BEAVER CRK

1.5 MILES E OF SR 272, Lancaster, PA

Built 1950 Load: 32.7 t ADT: 605

RIFE RUN RD T-403

Fair

Over: RIFE RUN

.4 MILES WEST OF SR 72, Lancaster, PA

Built 1971 Load: 32.7 t ADT: 760

T-857 AMOSITE RD

Fair

Over: CONOY CREEK

200 FT NW OF SR 241, Lancaster, PA

Built 1996 Load: 32.7 t ADT: 930

BOWMANSVILLE RD

Fair

Over: LITTLE MUDDY CREEK

100 FT SOUTH OF SR 272, Lancaster, PA

Built 1985 Load: 32.7 t ADT: 725

Showing 4,501-4,550 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.