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 90 EB & RAMP

Poor

Over: OVER SR 20 E/WB E MAIN

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 35.4 t ADT: 8,156

SR 832 STERRETTANA

Poor

Over: OVER SR 90 EB/WB

MCKEAN TOWNSHIP, Erie, PA

Built 1959 Load: 35.4 t ADT: 5,681

US 522

Poor

Over: I-70

OVER I-70 AT EXIT 168, Fulton, PA

Built 1960 Load: 35.4 t ADT: 1,992

SR 850-PA 850

Poor

Over: LAUREL RUN

HONEY GROVE, Juniata, PA

Built 1938 Load: 35.4 t ADT: 211

SR 0011 TR 11

Poor

Over: SR 6307 KEYSER AVE

CTY SCR OVER KEYSER AVE, Lackawanna, PA

Built 1963 Load: 35.4 t ADT: 18,902

SR 2004 RESERVR RD

Poor

Over: WHITE OAK RUN

MADISON TWP 239 S TR 590, Lackawanna, PA

Built 1940 Load: 35.4 t ADT: 477

T-474/ROWLANDS RD.

Poor

Over: SO BR TUNKHANNOCK CREEK

BENT. TWP 200 FT SO TR438, Lackawanna, PA

Built 1895 Load: 35.4 t ADT: 30

PA 625; SR 0625

Poor

Over: MUDDY CREEK

1 MI. S. OF BOWMANSVILLE, Lancaster, PA

Built 1930 Load: 35.4 t ADT: 5,553

SHREINER STA. ROAD

Poor

Over: LITTLE CONESTOGA CREEK

0.3 MI SW OF SR 0741, Lancaster, PA

Built 1930 Load: 35.4 t ADT: 620

T587 BENDER MLL RD

Poor

Over: W BR LITTLE CONESTOGA CR

1200 FT NE OF SR 3017, Lancaster, PA

Built 1970 Load: 35.4 t ADT: 260

OAK STREET

Poor

Over: CHIQUES CREEK TRIB

0.3 MILES NW OF SR 772, Lancaster, PA

Built 1970 Load: 35.4 t ADT: 5,150

PA 501; S.College

Poor

Over: TULPEHOCKEN CREEK

MYERSTOWN BOROUGH, Lebanon, PA

Built 1940 Load: 35.4 t ADT: 8,039

PINE STREET

Poor

Over: LEHIGH R. NS RR WATER ST

NORTHWEST CATASAUQUA, Lehigh, PA

Built 1953 Load: 35.4 t ADT: 8,000

I-80 EB

Poor

Over: LINESVILLE CREEK

WHITE HAVN BO .5M W TR940, Luzerne, PA

Built 1966 Load: 35.4 t ADT: 10,916

I-80 WB

Poor

Over: LINESVILLE CREEK

WHITE HAVEN B .5M W TR940, Luzerne, PA

Built 1966 Load: 35.4 t ADT: 11,043

SR 0415 TR 415

Poor

Over: TOBY CREEK

DALLAS BO 440 S SR 1045, Luzerne, PA

Built 1941 Load: 35.4 t ADT: 15,449

SR 2039

Poor

Over: GARDNERS CREEK

JENKINS TWP .3 M S TR 315, Luzerne, PA

Built 1941 Load: 35.4 t ADT: 639

SR 4001

Poor

Over: LITTLE PINE CREEK

2.5 MI W OF ENGLISH CTR, Lycoming, PA

Built 1975 Load: 35.4 t ADT: 134

SR 346-PA 346

Poor

Over: WILLOW CREEK

9 MI W BRADFORD, McKean, PA

Built 1940 Load: 35.4 t ADT: 520

SR 3002

Poor

Over: TWO MILE RUN

LUDLOW, McKean, PA

Built 1941 Load: 35.4 t ADT: 120

T-375 CROSBY CROSS

Poor

Over: POTATO CREEK

400 FT SW OF SR 46, McKean, PA

Built 1988 Load: 35.4 t ADT: 160

MCKINLEY AVENUE

Poor

Over: OVER MUNNELL RUN

MCKINLEY AVE.MERCER BORO., Mercer, PA

Built 1976 Load: 35.4 t ADT: 293

SR 2008

Poor

Over: BRANCH JACKS CREEK

2 MILE NORTH EAST WAGNER, Mifflin, PA

Built 1963 Load: 35.4 t ADT: 357

PA 447 (LR 497)

Poor

Over: SAMBO CREEK

2/10 MI.N.OF US 209 BUS., Monroe, PA

Built 1924 Load: 35.4 t ADT: 15,754

BELMONT AVENUE

Poor

Over: SCHUYLKILL RIVER

450 FT of SR 3045, Montgomery, PA

Built 1928 Load: 35.4 t ADT: 32,092

PENLLYN PIKE

Poor

Over: WISSAHICKON CREEK

1.4 MI N SR73 ADC 3256-K3, Montgomery, PA

Built 1964 Load: 35.4 t ADT: 11,591

STOVER ROAD T-419

Poor

Over: WEST SKIPPACK CREEK

T-419;W.SKIPPACK 3030-K8, Montgomery, PA

Built 1939 Load: 35.4 t ADT: 300

SR 1014

Poor

Over: WESTCOLANG CREEK

LACKAWXN TP 2.8M W TR 590, Pike, PA

Built 1957 Load: 35.4 t ADT: 701

T683 (Forks Hill R

Poor

Over: SNAKE CREEK

FRANKLIN FORKS, Susquehanna, PA

Built 1900 Load: 35.4 t ADT: 75

SR 1005

Poor

Over: OUTLET OF BUNNELLS POND

HONESDLE BO 200E SR 1001, Wayne, PA

Built 1984 Load: 35.4 t ADT: 1,309

SR3018 CORTEZ RD

Poor

Over: TRIB TO MIDDLE CREEK

S CANAAN TP 300 N SR3020, Wayne, PA

Built 1958 Load: 35.4 t ADT: 854

SR 4007

Poor

Over: EQUINUNK CREEK

MANCHSTR TWP .6M W SR1023, Wayne, PA

Built 1942 Load: 35.4 t ADT: 46

HOPKINS ROAD ("F")

Poor

Over: SUNNY BROOK

2ND BR NW OF ELLISON ROAD, Wayne, PA

Built 1958 Load: 35.4 t ADT: 75

T-563 KARNS AVENUE

Poor

Over: NINE MILE RUN

80 FT FROM SR 982, Westmoreland, PA

Built 1960 Load: 35.4 t ADT: 500

PA 616; SR 0616

Poor

Over: KREBS CREEK

1.5 MI NW OF GLEN ROCK, York, PA

Built 1933 Load: 35.4 t ADT: 1,607

SR 4018

Poor

Over: LAUREL RUN

0.5 MI.N. OF ANDERSONTOWN, York, PA

Built 1934 Load: 35.4 t ADT: 560

HAHN ROAD

Poor

Over: CHARTIERS CREEK

NE OF CANONSBURG, Washington, PA

Built 1980 Load: 35.4 t ADT: 75

TR722 MOODY ROAD

Poor

Over: CROOKED CREEK

1 3/4MI S EQUINONK CR RD, Wayne, PA

Built 1965 Load: 35.4 t ADT: 10

SR 153-PA 153

Poor

Over: TOBY CREEK

1 MI SW CHALLENGE, Elk, PA

Built 1961 Load: 36.0 t ADT: 2,467

W. COULTER STREET

Poor

Over: SEPTA;CHESTNUT HI. W.BR.

.5MI. S.WAYNE AVE.3480B06, Philadelphia, PA

Built 1901 Load: 36.0 t ADT: 2,547

BAILEYS RUN RD

Poor

Over: DAYS RUN

DY03 DAYS RUN NO. 3, Allegheny, PA

Built 1890 Load: 36.3 t ADT: 1,899

LOWRIE ST

Poor

Over: RIALTO STREET

050 Lowrie St Bridge, Allegheny, PA

Built 1900 Load: 36.3 t ADT: 1,650

SR0156

Poor

Over: NORFOLK SOUTHERN RR

AVONMORE STATION, Armstrong, PA

Built 1949 Load: 36.3 t ADT: 750

SR3027

Poor

Over: DOCK HOLLOW RUN

DOCK HOLLOW RUN NO.1, Armstrong, PA

Built 1955 Load: 36.3 t ADT: 38

GUNHART ROAD

Poor

Over: ALLEGHENY CREEK

WEST OF I-176, Berks, PA

Built 1920 Load: 36.3 t ADT: 100

T-105 THOMAS AVE

Poor

Over: CAYUTA CREEK

0.7 MI. NE OF SAYRE, Bradford, PA

Built 1920 Load: 36.3 t ADT: 1,200

FRONT STREET

Poor

Over: BEAVER CREEK

QUAKERTOWN BORO 14B02, Bucks, PA

Built 1928 Load: 36.3 t ADT: 10,383

SR 0663 LR 923

Poor

Over: PA TPK (I-476)

QUAKERTOWN INTERCHANGE, Bucks, PA

Built 1955 Load: 36.3 t ADT: 18,988

T-840 VICTORY ROAD

Poor

Over: DAVIS RUN

1.2 MI. N OF SR 228, Butler, PA

Built 1952 Load: 36.3 t ADT: 300

WIDMAN STREET

Poor

Over: SOLOMON RUN

WIDMAN STREET JOHNSTOWN, Cambria, PA

Built 1963 Load: 36.3 t ADT: 1,907

Showing 22,701-22,750 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.