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 426 GRAHAMVILLE

Fair

Over: OVER SR 89 LAKE ROAD

NORTH EAST BOROUGH, Erie, PA

Built 1941 Load: 42.6 t ADT: 971

SR 4032 MAIN ST

Fair

Over: OVER FOUR MILE CREEK

LAWRENCE PARK, Erie, PA

Built 1913 Load: 42.6 t ADT: 2,897

T-516 Old Zuck Rd

Fair

Over: WALNUT CREEK

1100 SE OF ZIMMERLY ROAD, Erie, PA

Built 1977 Load: 42.6 t ADT: 504

BUFFALO ROAD

Fair

Over: OVER NSRC & SR 0290

500FT SW of Penn. Ave., Erie, PA

Built 2004 Load: 42.6 t ADT: 6,342

SR 0040

Fair

Over: TOWNSHIP ROAD 655

BROWNSVILLE TOWNSHIP, Fayette, PA

Built 1969 Load: 42.6 t ADT: 10,356

SR 0051

Fair

Over: ABANDON R/R & REDSTONE C

MENALLEN & FRANKLIN TWP., Fayette, PA

Built 1957 Load: 42.6 t ADT: 13,960

TUB RUN ROAD

Fair

Over: TUB RUN

350 EAST PA RT 281, Fayette, PA

Built 1966 Load: 42.6 t ADT: 200

PA696;Old Scotland

Fair

Over: Phillaman Run

2.5 Mi. N. of PA-997, Franklin, PA

Built 1963 Load: 42.6 t ADT: 2,039

SR 1001

Fair

Over: COLD SPRING RUN

.75 MI N FAYETTEVILLE, Franklin, PA

Built 1955 Load: 42.6 t ADT: 1,977

SR 4005 Amberson r

Fair

Over: BR OF CONOCOCHEAQUE

.75 MI S OF AMBERSON, Franklin, PA

Built 1937 Load: 42.6 t ADT: 285

SYLVAN DRIVE

Fair

Over: LITTLE COVE CREEK

0.3 MI SOUTH OF SR 456, Franklin, PA

Built 1975 Load: 42.6 t ADT: 100

T384 WERTZVILLE RD

Fair

Over: PALMER RUN

NEEDMORE, Fulton, PA

Built 1948 Load: 42.6 t ADT: 410

US 22

Fair

Over: SR 3035 NORFOLK RR T565

OVER SR 3035 HUNTINGDON, Huntingdon, PA

Built 1948 Load: 42.6 t ADT: 12,102

US 22

Fair

Over: SR 1010 RR JUNIATA RIV

OVER SR 1010, Huntingdon, PA

Built 1949 Load: 42.6 t ADT: 9,540

PA 305

Fair

Over: LITTLE JUNIATA RIVER

1.5 MILE EAST OF SR 4005, Huntingdon, PA

Built 1984 Load: 42.6 t ADT: 2,433

PA 475

Fair

Over: LITTLE AUGHWICK CREEK

228 FEET NORTH OF SR 2005, Huntingdon, PA

Built 1962 Load: 42.6 t ADT: 317

US 522

Fair

Over: T396 AUGWK.CRK. EBTOP RR

1.0 MI.N. OF SHIRLEYSBURG, Huntingdon, PA

Built 1987 Load: 42.6 t ADT: 5,287

PA 655

Fair

Over: SPRING CREEK

0.1 MILE SOUTH OF PA 994, Huntingdon, PA

Built 1934 Load: 42.6 t ADT: 936

SR0286

Fair

Over: SR0422 EB&WB

OAKLAND AVENUE, Indiana, PA

Built 1993 Load: 42.6 t ADT: 15,934

SR0403

Fair

Over: SR0022 EB&WB

CRAMER PIKE, Indiana, PA

Built 1962 Load: 42.6 t ADT: 1,511

SR0422 EB

Fair

Over: SR4422;SR3035;RR;STREAM

NOWHERE EB, Indiana, PA

Built 1993 Load: 42.6 t ADT: 5,117

SR4015

Fair

Over: SOUTH BRANCH PLUM CREEK

AMBROSE, Indiana, PA

Built 1957 Load: 42.6 t ADT: 393

T-685 NUMBER ELEVE

Fair

Over: SOUTH BRANCH CUSH CREEK

BTW T936 & T935 & SR 0286, Indiana, PA

Built 1978 Load: 42.6 t ADT: 75

T-406 TRUSAL RD

Fair

Over: SOUTH BRANCH PLUM CREEK

BTW T413 & SR4006, Indiana, PA

Built 1991 Load: 42.6 t ADT: 70

SR1006

Fair

Over: SR0080 EB&WB

SULGER ROAD, Jefferson, PA

Built 1962 Load: 42.6 t ADT: 34

SR0219

Fair

Over: MCEWEN RUN

LANES MILLS NO.2, Jefferson, PA

Built 1961 Load: 42.6 t ADT: 7,645

SR 2017

Fair

Over: COCOLAMUS CREEK

3 MI W SEVEN STARS, Juniata, PA

Built 1960 Load: 42.6 t ADT: 169

SR 1100 TWP RD 507

Fair

Over: SR 0081 I-81

GREENFIELD TWP 3M N TR107, Lackawanna, PA

Built 1960 Load: 42.6 t ADT: 39

SR 0247 BRIDGE ST

Fair

Over: LACKAWANNA RIVER

JESSUP/BLAKELY BORO LINE, Lackawanna, PA

Built 1957 Load: 42.6 t ADT: 5,326

SR 0502 TR 502

Fair

Over: SPRING BROOK

MOOSIC BORO .8 M E TR 11, Lackawanna, PA

Built 1961 Load: 42.6 t ADT: 5,285

SR 8008 TO I-380 S

Fair

Over: I-84 EB & I-380 NB

ROARNG BR TP OVR I-84&380, Lackawanna, PA

Built 1975 Load: 42.6 t ADT: 1,906

US 222; rob.fulton

Fair

Over: CONOWINGO CREEK

1 MI S OF WAKEFIELD, Lancaster, PA

Built 1991 Load: 42.6 t ADT: 3,571

Lancaster Pike

Fair

Over: Pequea Creek

1 mi.S. of Smithville, Lancaster, PA

Built 1948 Load: 42.6 t ADT: 24,600

PA 441; 3rd Street

Fair

Over: US 30; SR 0030

Columbia Boro, Lancaster, PA

Built 1970 Load: 42.6 t ADT: 8,586

SR 1017

Fair

Over: CONESTOGA RIVER

0.5 MI.S.W. OF CHURCHTOWN, Lancaster, PA

Built 1993 Load: 42.6 t ADT: 467

SR 1037

Fair

Over: HAMMER CREEK

0.2 MI. S. OF US 322, Lancaster, PA

Built 1975 Load: 42.6 t ADT: 951

SR 2019; TWP RD

Fair

Over: GOFF RUN

NEW PROVIDENCE, Lancaster, PA

Built 1985 Load: 42.6 t ADT: 1,969

SR 2024

Fair

Over: TRIB.LITTLE BEAVER CREEK

1.5 MILE E.OF MARTINSVILL, Lancaster, PA

Built 1938 Load: 42.6 t ADT: 245

FROGTOWN RD.

Fair

Over: PEQUEA CREEK

1 MI NW MARTICVILLE, Lancaster, PA

Built 1950 Load: 42.6 t ADT: 587

PA 501 LR A7069

Fair

Over: PA TPK (I-76)

N BRICKERVILLE, Lancaster, PA

Built 1949 Load: 42.6 t ADT: 9,813

SR 1047 LR3613

Fair

Over: PA TPK (I-76)

05 MI NORTH OF SCHOENEC, Lancaster, PA

Built 1950 Load: 42.6 t ADT: 2,904

T-748

Fair

Over: PA TPK (I-76)

WEST COCALICO TWP, Lancaster, PA

Built 1949 Load: 42.6 t ADT: 200

T-792 POND RD

Fair

Over: MUDDY RUN

1/2 MI NORTH OF SR 340, Lancaster, PA

Built 1973 Load: 42.6 t ADT: 515

T331 COLD SPRNG RD

Fair

Over: LITTLE CHIQUES CRK

1/2 MI SE OF SR 4039, Lancaster, PA

Built 1950 Load: 42.6 t ADT: 200

T-385 HAMAKER RD

Fair

Over: CHIQUES CREEK

400 FT WEST OF T-586, Lancaster, PA

Built 1970 Load: 42.6 t ADT: 620

NEW CASTLE ST

Fair

Over: MCLURES RUN

1420 SOUTH OF SR 0208, Lawrence, PA

Built 1987 Load: 42.6 t ADT: 3,410

CLELAND MILL RD.

Fair

Over: HICKORY RUN

1 MI. SOUTH OF SR 0108, Lawrence, PA

Built 1991 Load: 42.6 t ADT: 296

PA TPK (I-376)

Fair

Over: MAHON;NS;CSX;PLE;COVERT

CITY OF NEW CASTLE, Lawrence, PA

Built 1992 Load: 42.6 t ADT: 9,871

PA TPK (I-376)

Fair

Over: MAHON;NS;CSX;COVERTRD

CITY OF NEW CASTLE, Lawrence, PA

Built 1992 Load: 42.6 t ADT: 9,871

SR 3011

Fair

Over: PA TPK (I-76)

SR 3011 HUSTON RD, Lawrence, PA

Built 2006 Load: 42.6 t ADT: 54

Showing 8,601-8,650 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.