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 1039 RICEVILLE

Fair

Over: OVER MOSEY RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1941 Load: 25.4 t ADT: 496

SR 3025 KENNEDY HL

Fair

Over: OVER SR 79 NB/SB

VERNON TOWNSHIP, Crawford, PA

Built 1969 Load: 25.4 t ADT: 623

PA 74; SR 0074

Fair

Over: CONODOGUINET CREEK

2.5 MI N OF L.R. 890, Cumberland, PA

Built 1960 Load: 25.4 t ADT: 3,216

114 Willow Mill Rn

Fair

Over: CONODOGUINET CREEK

HOGESTOWN, Cumberland, PA

Built 1974 Load: 25.4 t ADT: 21,985

HARMONY HALL T-420

Fair

Over: LETORT SPRING RUN

2 NE CARLISLE/LETRT SPRGS, Cumberland, PA

Built 1937 Load: 25.4 t ADT: 5,000

PA 283; SR 0300 WB

Fair

Over: PA 341; COLEBROOK RD.

2 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 Load: 25.4 t ADT: 23,416

SR 2003

Fair

Over: SR 0322; US 322

.5 MI.S. OF HUMMELSTOWN, Dauphin, PA

Built 1968 Load: 25.4 t ADT: 9,039

SHEETZ ROAD

Fair

Over: POWELL CREEK

.7S ENTERLINE/POWELL CRK., Dauphin, PA

Built 1974 Load: 25.4 t ADT: 100

DARBY ROAD

Fair

Over: ITHAN CREEK

EAST OF PA-320 25J04, Delaware, PA

Built 1932 Load: 25.4 t ADT: 9,049

WALLINGFORD ROAD

Fair

Over: CRUM CREEK

SPRINGFIELD TWP.LN.34H07, Delaware, PA

Built 1922 Load: 25.4 t ADT: 2,175

DELMAR DRIVE

Fair

Over: MUCKINIPATTIS CREEK

0.5 Mi SE US13 3698-D8, Delaware, PA

Built 1959 Load: 25.4 t ADT: 6,033

FOLCROFT AVENUE

Fair

Over: HERMESPROTA CREEK

.1 MI.SE OF US-13 35J08, Delaware, PA

Built 1925 Load: 25.4 t ADT: 1,085

SR 4007

Fair

Over: SILVER CREEK

JOHNSONBURG BORO, Elk, PA

Built 1970 Load: 25.4 t ADT: 512

SR 6 PERRY HWY.

Fair

Over: OVER FRENCH CREEK TRIB

LEBOUEF TOWNSHIP, Erie, PA

Built 1923 Load: 25.4 t ADT: 2,692

SR 20 WB 26 TH ST

Fair

Over: OVER SR 79 NB/SB RAMP C

CITY OF ERIE, Erie, PA

Built 1972 Load: 25.4 t ADT: 7,733

SR 97 UNION CITY

Fair

Over: OVER WALNUT CREEK

SUMMIT TOWNSHIP, Erie, PA

Built 1952 Load: 25.4 t ADT: 12,249

SR 3020 WEST ROAD

Fair

Over: OVER ELK CREEK

MCKEAN TOWNSHIP, Erie, PA

Built 1970 Load: 25.4 t ADT: 3,535

T-928 CIDER MILL

Fair

Over: MILL CREEK

200 FT S OF E. GORE RD, Erie, PA

Built 1973 Load: 25.4 t ADT: 1,819

T-701 KNOYLE ROAD

Fair

Over: FRENCH CREEK WEST BRANCH

1/2 MI E OF PHILLIPSBURG, Erie, PA

Built 1975 Load: 25.4 t ADT: 37

RAMP C FROM SR 20

Fair

Over: OVER SR 79 N.B & S.B.

CITY OF ERIE, Erie, PA

Built 1972 Load: 25.4 t ADT: 3,701

SR 0982

Fair

Over: MOUNTS CREEK

BULLSKIN TOWNSHIP, Fayette, PA

Built 1953 Load: 25.4 t ADT: 6,166

SR 2011

Fair

Over: MEADOW RUN

STEWART TOWNSHIP, Fayette, PA

Built 1940 Load: 25.4 t ADT: 675

SR 2033

Fair

Over: FIKE RUN

HENRY CLAY TOWNSHIP, Fayette, PA

Built 1939 Load: 25.4 t ADT: 440

SR 36 ELM STREET

Fair

Over: OVER TIONESTA CREEK

TIONESTA BOROUGH, Forest, PA

Built 1941 Load: 25.4 t ADT: 2,531

US 30;Lincoln Hwy

Fair

Over: W Br Conococheague Creek

Fort Loudon, Franklin, PA

Built 1959 Load: 25.4 t ADT: 5,885

T613;Pine Stump Rd

Fair

Over: I-81; SR 0081

1 Mi. N. of Scotland, Franklin, PA

Built 1963 Load: 25.4 t ADT: 658

SR 0316 Wayne AV

Fair

Over: Norfolk Southern RR

CHAMBERSBURG, Franklin, PA

Built 1934 Load: 25.4 t ADT: 8,673

PA 641; Timmons Rd

Fair

Over: Dry Run

1 ML.S.E. OF SPRING RUN, Franklin, PA

Built 1933 Load: 25.4 t ADT: 2,499

SR3002;Williamson

Fair

Over: Conococheague Creek

0.5 MI.S. OF WILLIAMSON, Franklin, PA

Built 1973 Load: 25.4 t ADT: 912

SR 4016 Roxbury r

Fair

Over: CONODOGUINET CREEK

NEAR MONGUL, Franklin, PA

Built 1964 Load: 25.4 t ADT: 2,691

GARMAN DR

Fair

Over: FALLING SPRING CREEK

500 FT NE OF SR 2029, Franklin, PA

Built 1974 Load: 25.4 t ADT: 600

T330 ZACHS RDGE RD

Fair

Over: MCKEES RUN

1.5 MI.E.OF AMARANTH, Fulton, PA

Built 1940 Load: 25.4 t ADT: 133

SR 2018

Fair

Over: DYERS FORK WHITELEY CK.

WHITELEY TOWNSHIP, Greene, PA

Built 1974 Load: 25.4 t ADT: 978

SR 3007

Fair

Over: JOB CREEK

JACKSON TOWNSHIP, Greene, PA

Built 1938 Load: 25.4 t ADT: 59

PA 26

Fair

Over: JUNIATA RIVER

137 FEET NORTH OF SR 3035, Huntingdon, PA

Built 1969 Load: 25.4 t ADT: 10,120

PA 35

Fair

Over: SHADE CREEK

168 FEET NORTH OF SR 2006, Huntingdon, PA

Built 1935 Load: 25.4 t ADT: 767

PA 45

Fair

Over: WARRIORS MARK RUN

46 FEET EAST OF SR 4015, Huntingdon, PA

Built 1950 Load: 25.4 t ADT: 1,439

T358 COVERED BR R

Fair

Over: SHADE CREEK

2 Miles NW of Shade Gap, Huntingdon, PA

Built 1896 Load: 25.4 t ADT: 50

SR0080 EB

Fair

Over: ABAND CONRAIL RR

TRIANGLE TECH EB, Jefferson, PA

Built 1970 Load: 25.4 t ADT: 10,437

SR 1009

Fair

Over: SR0080 EB&WB

PARDUS NO.4, Jefferson, PA

Built 1964 Load: 25.4 t ADT: 342

SR1010

Fair

Over: SOUTH BR OF NORTH FORK

GAME SCHOOL RD, Jefferson, PA

Built 1939 Load: 25.4 t ADT: 292

SR4005

Fair

Over: SR0080 EB

RICHARDS STREET EB, Jefferson, PA

Built 1962 Load: 25.4 t ADT: 252

TR 348 MT COBB RD

Fair

Over: W BR WALLENPAUPACK CREEK

JEFFERSN TP 1.9M E SR2003, Lackawanna, PA

Built 1939 Load: 25.4 t ADT: 8,151

SR 0380 I-380 SB

Fair

Over: SR 2013

CLIFTON TWP OVER SR 2013, Lackawanna, PA

Built 1967 Load: 25.4 t ADT: 9,992

SR 0690 TR 690

Fair

Over: SR 0084 I-84 EB & WB

MADISON TWP OVER I-84, Lackawanna, PA

Built 1974 Load: 25.4 t ADT: 1,086

SR 2013

Fair

Over: ASH CREEK

CLIFTON TWP 1.2M S SR2017, Lackawanna, PA

Built 1973 Load: 25.4 t ADT: 1,477

PA TPK (I-476)

Fair

Over: SR 0502 Luzerne&Susq.RR

MOOSIC BOROUGH, Lackawanna, PA

Built 1956 Load: 25.4 t ADT: 6,575

PA TPK (I-476)

Fair

Over: SR0307 LR671

N. SCRANTON CITY, Lackawanna, PA

Built 1957 Load: 25.4 t ADT: 6,895

PA 10; SR 0010

Fair

Over: Conestoga River

2 MI.S. of Morgantown, Lancaster, PA

Built 1974 Load: 25.4 t ADT: 7,264

SR 1066; T-615

Fair

Over: US 222; SR 0222

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

Built 1969 Load: 25.4 t ADT: 8,291

Showing 1,551-1,600 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.