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 2012

Fair

Over: LICKING CREEK

24 FEET EAST OF SR 2019, Huntingdon, PA

Built 1942 Load: 32.7 t ADT: 154

T517 DAVIS ROAD

Fair

Over: EB.STANDING STONE CREEK

2 MI.SE.OF MCALEVYS FORT, Huntingdon, PA

Built 1920 Load: 32.7 t ADT: 51

SR0119 NB&SB

Fair

Over: TEARING RUN

TEARING RUN NO.2, Indiana, PA

Built 1960 Load: 32.7 t ADT: 13,505

SR0119 NB&SB

Fair

Over: CLYMER WATER SERVICE

LOWMAN, Indiana, PA

Built 1970 Load: 32.7 t ADT: 7,748

SR0119 NB&SB

Fair

Over: RAMSEY RUN

RAMSEY RUN NO.2, Indiana, PA

Built 1970 Load: 32.7 t ADT: 7,748

SR0119 NB&SB

Fair

Over: McKEE RUN

MABON, Indiana, PA

Built 1970 Load: 32.7 t ADT: 7,245

SR0240

Fair

Over: N BR OF TWO LICK CREEK

COMMODORE, Indiana, PA

Built 1981 Load: 32.7 t ADT: 1,588

SR0259

Fair

Over: TRIB TO BRUSH CREEK

BRUSH VALLEY NO.5, Indiana, PA

Built 1967 Load: 32.7 t ADT: 362

SR0286 EB&WB

Fair

Over: RAMSEY RUN

RAMSEY RUN NO.4, Indiana, PA

Built 1970 Load: 32.7 t ADT: 9,180

SR0403

Fair

Over: MARDIS RUN

DILLTOWN NO.2, Indiana, PA

Built 1956 Load: 32.7 t ADT: 796

SR0580

Fair

Over: SIDES RUN

EAST OF PINE FLATS, Indiana, PA

Built 1957 Load: 32.7 t ADT: 975

SR3021

Fair

Over: HARPERS RUN

ISELIN NO.1, Indiana, PA

Built 1930 Load: 32.7 t ADT: 793

SR3022

Fair

Over: NORFOLK SOUTHERN RR

PARKWOOD, Indiana, PA

Built 1975 Load: 32.7 t ADT: 1,514

SR3033

Fair

Over: TRIB TO CHERRY RUN

RUSTIC, Indiana, PA

Built 1956 Load: 32.7 t ADT: 645

SR4001

Fair

Over: MITCHELL RUN

BLACK WALNUT, Indiana, PA

Built 1936 Load: 32.7 t ADT: 495

SR4002

Fair

Over: DARK HOLLOW RUN

DARK HOLLOW, Indiana, PA

Built 1993 Load: 32.7 t ADT: 1,072

SR3056

Fair

Over: TWO LICK CREEK

HOMER CITY - WATER ST, Indiana, PA

Built 1980 Load: 32.7 t ADT: 1,499

T-888 STRANGFORD

Fair

Over: TOMS RUN

BTW T751 & T784, Indiana, PA

Built 1952 Load: 32.7 t ADT: 350

T-606

Fair

Over: Richards Run

1500 NE of SR 2008, Indiana, PA

Built 1910 Load: 32.7 t ADT: 150

WILSON STREET

Fair

Over: DIXON RUN

200 FT FROM INT W/SR0403, Indiana, PA

Built 1995 Load: 32.7 t ADT: 100

SR0028

Fair

Over: CODER RUN

CODER NO.1, Jefferson, PA

Built 1935 Load: 32.7 t ADT: 4,913

SR0028

Fair

Over: LITTLE TOBY CREEK

BROCKWAY BORO, Jefferson, PA

Built 1989 Load: 32.7 t ADT: 5,653

SR0080 EB&WB

Fair

Over: LITTLE MILL CREEK

LITTLE MILL CREEK, Jefferson, PA

Built 1962 Load: 32.7 t ADT: 20,738

SR1012 (T-520)

Fair

Over: FIVEMILE RUN

HATTEN MEDIAN, Jefferson, PA

Built 1962 Load: 32.7 t ADT: 100

SR0080 EB

Fair

Over: BEAVERDAM RUN

RED MILL NO.3, Jefferson, PA

Built 1970 Load: 32.7 t ADT: 10,437

SR0322

Fair

Over: SANDY LICK CREEK

REYNOLDSVILLE NO.1, Jefferson, PA

Built 1913 Load: 32.7 t ADT: 5,328

SR1830

Fair

Over: FIVEMILE RUN

EMERICKVILLE MEDIAN, Jefferson, PA

Built 1962 Load: 32.7 t ADT: 132

SR2027

Fair

Over: FRONT RUN

FRONT RUN, Jefferson, PA

Built 1948 Load: 32.7 t ADT: 217

SR3007

Fair

Over: BEAVER RUN

NEAR OHL, Jefferson, PA

Built 1930 Load: 32.7 t ADT: 335

SR 22-US 22

Fair

Over: TOWNSHIP ROAD 501

2 MI NE MIFFLINTOWN, Juniata, PA

Built 1973 Load: 32.7 t ADT: 10,347

SR 333-PA 333

Fair

Over: DELAWARE CREEK

EAST SALEM, Juniata, PA

Built 1952 Load: 32.7 t ADT: 4,073

SR 2023

Fair

Over: LININGERS RUN

7 MI NE SEVEN STARS, Juniata, PA

Built 1949 Load: 32.7 t ADT: 903

SR 3002

Fair

Over: DOE RUN

MEXICO, Juniata, PA

Built 1928 Load: 32.7 t ADT: 2,357

SR 3011

Fair

Over: MARKEE RUN

2 MI SW MIFFLIN, Juniata, PA

Built 1943 Load: 32.7 t ADT: 321

SR 3030

Fair

Over: TUSCARORA CREEK

ACADEMIA, Juniata, PA

Built 1962 Load: 32.7 t ADT: 704

SR 6006

Fair

Over: LEGGETTS CREEK

SCRANTON JCT TR11 &SR6006, Lackawanna, PA

Built 1941 Load: 32.7 t ADT: 34,701

SR 0081 I-81 NB

Fair

Over: LUZ CO R A & SPRNGBRK CR

MOOSIC BORO .2 M S TR 502, Lackawanna, PA

Built 1966 Load: 32.7 t ADT: 28,335

SR 0081 I-81 SB

Fair

Over: TWP RD 442 BURCHER AVE

S ABINGTON TWP OVER T-442, Lackawanna, PA

Built 1961 Load: 32.7 t ADT: 15,349

SR 0081 I-81

Fair

Over: LEGGETTS CREEK

S ABINGTN TP .5 M N EX194, Lackawanna, PA

Built 1961 Load: 32.7 t ADT: 25,008

SR 0081 I-81 NB

Fair

Over: SR 0524 TR 524 EXIT 199

SCOTT TWP OVER TR 524, Lackawanna, PA

Built 1959 Load: 32.7 t ADT: 12,233

SR 0081 I-81 SB

Fair

Over: SR 0524 TR 524 EXIT 199

SCOTT TWP OVER TR 524, Lackawanna, PA

Built 1959 Load: 32.7 t ADT: 13,038

SR 0081 I-81 SB

Fair

Over: SR 0107 TR 107 EXIT 202

BENTON TWP OVER TR 107, Lackawanna, PA

Built 1961 Load: 32.7 t ADT: 10,483

SR 1101 TWP RD 562

Fair

Over: SR 0081 I-81

GRENFIELD TP 2.1M N TR107, Lackawanna, PA

Built 1961 Load: 32.7 t ADT: 311

I-84 TR6-84 TG RMP

Fair

Over: LITTLE ROARING BROOK

DUNMORE BO 1 M W TIGUE ST, Lackawanna, PA

Built 1961 Load: 32.7 t ADT: 49,084

SR 0084 I-84 EB

Fair

Over: LACKA COUNTY RAIL AUTH

ROARNG BRK TP .2M W TR435, Lackawanna, PA

Built 1977 Load: 32.7 t ADT: 7,028

SR 0084 I-84 WB

Fair

Over: LACKA COUNTY RAIL AUTH

ROARNG BRK TP .2M W TR435, Lackawanna, PA

Built 1977 Load: 32.7 t ADT: 8,881

SR 0084 I-84

Fair

Over: RECREATIONAL TRAIL

JEFFERSON TP 1.2M E TR247, Lackawanna, PA

Built 1976 Load: 32.7 t ADT: 14,435

SR 0106 TR 106

Fair

Over: FALL BROOK

FELL TWP 1 M W SR 1007, Lackawanna, PA

Built 1959 Load: 32.7 t ADT: 3,656

SR 0107 TR 107

Fair

Over: HEART LAKE CREEK

SCOTT TWP .1 M W SR 1017, Lackawanna, PA

Built 1931 Load: 32.7 t ADT: 2,812

SR 0307 TR 307

Fair

Over: LEACH CREEK

SCRANTON 500 N SR 3011, Lackawanna, PA

Built 1969 Load: 32.7 t ADT: 8,372

Showing 4,451-4,500 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.