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

I-70 WBL

Fair

Over: SR 3009

1.5 MI.N. OF WARFORDSBURG, Fulton, PA

Built 1960 Load: 33.6 t ADT: 7,022

SR 1004

Fair

Over: US 30

1.5 MI.W.OF MCCONNELSBURG, Fulton, PA

Built 1966 Load: 33.6 t ADT: 1,988

PA 915 (LR 706)

Fair

Over: PA TPK (I-76)

EAST OF BREEZEWOOD, Fulton, PA

Built 1969 Load: 33.6 t ADT: 1,095

SR 0021

Fair

Over: BR OF LITTLE WHITELEY CK

CUMBERLAND TOWNSHIP, Greene, PA

Built 1952 Load: 33.6 t ADT: 2,210

SR 1008

Fair

Over: PUMPKIN RUN

JEFFERSON TOWNSHIP, Greene, PA

Built 1934 Load: 33.6 t ADT: 1,305

SR 2003

Fair

Over: WHITELEY CREEK

WHITELEY TOWNSHIP, Greene, PA

Built 1960 Load: 33.6 t ADT: 994

SR 2009

Fair

Over: DOOLEY RUN

PERRY & DUNKARD TOWNSHIP, Greene, PA

Built 1930 Load: 33.6 t ADT: 1,062

SR 3001

Fair

Over: BISSETT RUN

SPRINGHILL TOWNSHIP, Greene, PA

Built 1960 Load: 33.6 t ADT: 113

SR 4003

Fair

Over: DUNKARD FORK

RICHHILL TOWNSHIP, Greene, PA

Built 1956 Load: 33.6 t ADT: 236

EAST STREET

Fair

Over: PURMAN RUN

WAYNESBURG EAST STREET, Greene, PA

Built 1963 Load: 33.6 t ADT: 500

SR 3021

Fair

Over: ROARING RUN

4.5 MI.S.OF KIMMEL, Huntingdon, PA

Built 1947 Load: 33.6 t ADT: 136

SR 4031

Fair

Over: BEAVER BRANCH

0.3 MILE NORTH OF PA 45, Huntingdon, PA

Built 1947 Load: 33.6 t ADT: 386

T513 RIVERSIDE DR

Fair

Over: SPRUCE CREEK

SPRUCE CREEK, Huntingdon, PA

Built 1930 Load: 33.6 t ADT: 51

SR 0119 NB

Fair

Over: SR 8001

WAYNE AVE RAMP NB, Indiana, PA

Built 1970 Load: 33.6 t ADT: 4,185

SR0119 SB

Fair

Over: SR0954

SULLIVAN SB, Indiana, PA

Built 1970 Load: 33.6 t ADT: 3,837

SR0259

Fair

Over: LITTLE BRUSH CREEK

BRUSH VALLEY NO.8, Indiana, PA

Built 1941 Load: 33.6 t ADT: 920

SR2012

Fair

Over: CLARKE RUN

CLARKE RUN, Indiana, PA

Built 1933 Load: 33.6 t ADT: 156

T-840 GRIFFITH RD

Fair

Over: LITTLE MAHONING CREEK

BTW T402 & SR4018, Indiana, PA

Built 1960 Load: 33.6 t ADT: 70

ROCK RUN ROAD

Fair

Over: CUSH CREEK

BTW T697 & SR0286, Indiana, PA

Built 1981 Load: 33.6 t ADT: 100

SR0080 WB

Fair

Over: FIVEMILE RUN

HATTEN WB, Jefferson, PA

Built 1962 Load: 33.6 t ADT: 10,486

SR1012 (T-520)

Fair

Over: SR0080 EB

HATTEN ROAD EB, Jefferson, PA

Built 1962 Load: 33.6 t ADT: 100

SR0410

Fair

Over: STUMP CREEK

STUMP CREEK NO.1, Jefferson, PA

Built 1940 Load: 33.6 t ADT: 1,362

SR 22-US 22

Fair

Over: SR 2006

1 MI E MIFFLINTOWN, Juniata, PA

Built 1974 Load: 33.6 t ADT: 7,250

SR 22-US 22

Fair

Over: SR 2006

1 MI E MIFFLINTOWN, Juniata, PA

Built 1974 Load: 33.6 t ADT: 7,630

SR 22-US 22

Fair

Over: SR 2005

4 MI W THOMPSONTOWN, Juniata, PA

Built 1972 Load: 33.6 t ADT: 7,250

SR 22-US 22

Fair

Over: SR 2009

1 MI W THOMPSONTOWN, Juniata, PA

Built 1972 Load: 33.6 t ADT: 7,630

SR 22-US 22

Fair

Over: SR 333-PA 333;DELAWARE C

THOMPSONTOWN, Juniata, PA

Built 1972 Load: 33.6 t ADT: 7,630

SR 235-PA 235

Fair

Over: CABALA RUN

SEVEN STARS, Juniata, PA

Built 1928 Load: 33.6 t ADT: 414

T-418 LAUREL RD

Fair

Over: LAUREL RUN

2 MI. N OF OAKLAND MILLS, Juniata, PA

Built 1989 Load: 33.6 t ADT: 50

SR 0011 TR 11

Fair

Over: THEODORE STREET

CTY SCR OVER THEODORE ST, Lackawanna, PA

Built 1963 Load: 33.6 t ADT: 18,902

SR 0081 I-81 NB

Fair

Over: I-476 PA TURNPIKE

MOOSIC BO OVR PA TURNPIKE, Lackawanna, PA

Built 1966 Load: 33.6 t ADT: 26,433

SR 0081 I-81 SB

Fair

Over: SR 4028 FAIRVIEW ROAD

S ABINGTON TP OVER SR4028, Lackawanna, PA

Built 1959 Load: 33.6 t ADT: 12,138

SR 0081 I-81 NB

Fair

Over: SR 4028 FAIRVIEW ROAD

S ABINGTON TP OVER SR4028, Lackawanna, PA

Built 1959 Load: 33.6 t ADT: 12,870

SR 2109 TWP RD 446

Fair

Over: SR 0081 I-81

S ABNGTN TP T-446 OV I-81, Lackawanna, PA

Built 1959 Load: 33.6 t ADT: 635

SR 3002

Fair

Over: GARDNER CREEK

RANSOM TWP .1 M W SR 3009, Lackawanna, PA

Built 1970 Load: 33.6 t ADT: 934

SANDERSON AVENUE

Fair

Over: LACKAWANNA RIVER

550 FT NE OF MARKET ST, Lackawanna, PA

Built 1990 Load: 33.6 t ADT: 5,575

PA 23; SR 0023

Fair

Over: Norfolk Southern

Rohrstown, Lancaster, PA

Built 1972 Load: 33.6 t ADT: 9,860

US222Beaver Valley

Fair

Over: Pequea Creek

1 mi N of Refton, Lancaster, PA

Built 1956 Load: 33.6 t ADT: 11,919

US 222 NB; SR 0222

Fair

Over: LITTLE MUDDY CREEK

1 MI. S. OF REAMSTOWN, Lancaster, PA

Built 1975 Load: 33.6 t ADT: 18,311

US 222 SB; SR 0222

Fair

Over: LITTLE MUDDY CREEK

3 MI. E. OF REAMSTOWN, Lancaster, PA

Built 1975 Load: 33.6 t ADT: 17,953

PA 324;SR 0324

Fair

Over: CLIMBERS RUN

1 MI. N. MARTIC FORGE, Lancaster, PA

Built 1982 Load: 33.6 t ADT: 2,399

PA 772; Newport Rd

Fair

Over: LR 1124; (INCOMPLETE RD)

1 mi.S. of Leola, Lancaster, PA

Built 1975 Load: 33.6 t ADT: 5,306

PA 897; SR 0897

Fair

Over: COCALICO CREEK

REINHOLDS, Lancaster, PA

Built 1969 Load: 33.6 t ADT: 4,041

SCALPY HOLLOW RD

Fair

Over: FISHING CREEK

2 MILES SW OF SR 272, Lancaster, PA

Built 1993 Load: 33.6 t ADT: 160

T-711 CHURCH ST

Fair

Over: AMTRAK

900 FT NORTH OF SR 4020, Lancaster, PA

Built 1969 Load: 33.6 t ADT: 1,280

OLD ENON UNITY RD

Fair

Over: N FORK LITTLE BEAVER RUN

203001 OLD ENON UNITY RD, Lawrence, PA

Built 2002 Load: 33.6 t ADT: 100

I-81 NB; SR 0081

Fair

Over: PA 934;SR 0934

I.G.M.R. EXIT #85 I-81, Lebanon, PA

Built 1967 Load: 33.6 t ADT: 24,702

I-81 SB; SR 0081

Fair

Over: SR 4020

EXIT 85 I-81, Lebanon, PA

Built 1967 Load: 33.6 t ADT: 25,043

SR 1017(LR 39038)

Fair

Over: COPLAY CREEK

MAUCH CHUNK RD, Lehigh, PA

Built 1910 Load: 33.6 t ADT: 11,053

SR 2029(LR 39002)

Fair

Over: TRIB. SAUCON CREEK

LIMEPORT PK.@ SAUCON VAL., Lehigh, PA

Built 1953 Load: 33.6 t ADT: 6,417

Showing 5,401-5,450 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.