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

OPOSSOM ROAD T460

Fair

Over: OPPOSSUM CREEK

@ SPILLWAY OF OPPOSOM LAK, Cumberland, PA

Built 1929 Load: 44.5 t ADT: 100

I-81 NB; SR 0081

Fair

Over: TWP RD 523

2 MI E SHELLSVILLE, Dauphin, PA

Built 1968 Load: 44.5 t ADT: 25,156

SR 1002

Fair

Over: BEAR CREEK

WICONISCO, Dauphin, PA

Built 1935 Load: 44.5 t ADT: 1,006

SR 2011

Fair

Over: SPRING CREEK

HERSHEY, Dauphin, PA

Built 1983 Load: 44.5 t ADT: 3,476

VALLEY ROAD T-303

Fair

Over: HOFFER CREEK

0.8 MI E OF SR 0743, Dauphin, PA

Built 1958 Load: 44.5 t ADT: 127

SHADY LANE T-461

Fair

Over: BOW CREEK

3 N HERSHY/EHANOVER/BOW, Dauphin, PA

Built 1988 Load: 44.5 t ADT: 175

LENNI ROAD

Fair

Over: CHESTER CREEK

2MI.SW.OF PA 452 33D10, Delaware, PA

Built 1987 Load: 44.5 t ADT: 3,762

THORNTON ROAD

Fair

Over: WEST BR.CHESTER CREEK

W.BR.CHESTER CR. 32C10, Delaware, PA

Built 1973 Load: 44.5 t ADT: 2,545

SR 120-PA 120

Fair

Over: IRON RUN

CITY OF ST MARYS, Elk, PA

Built 1949 Load: 44.5 t ADT: 4,411

SR 86 E.B.

Fair

Over: OVER FRENCH CREEK

GREENFIELD TOWNSHIP, Erie, PA

Built 1987 Load: 44.5 t ADT: 3,686

SR 89 SOUTH LAKE

Fair

Over: OVER SIXTEEN MILE CK BR

NORTH EAST BOROUGH, Erie, PA

Built 1915 Load: 44.5 t ADT: 7,202

SR 3001 GRIFFEY RD

Fair

Over: OVER CONNEAUT CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 1948 Load: 44.5 t ADT: 479

SR 0119

Fair

Over: MOUNTS CREEK

BULLSKIN TOWNSHIP, Fayette, PA

Built 1942 Load: 44.5 t ADT: 26,109

WALNUT AVE - TR524

Fair

Over: REDSTONE CREEK

BROWNFIELD, Fayette, PA

Built 1967 Load: 44.5 t ADT: 500

POTTER SCHOOL ROAD

Fair

Over: STONY RUN

EAST OF ELLIOTSVILLE, Fayette, PA

Built 1901 Load: 44.5 t ADT: 100

I-81 SB; SR 0081

Fair

Over: SR 2002 LEITERSBURG ROAD

0.5 ML. S. OF GREENCASTLE, Franklin, PA

Built 1963 Load: 44.5 t ADT: 19,180

PA 696; S.Fayette

Fair

Over: SHIRLEY RUN

.75 MI.S.E. SHIPPENSBURG, Franklin, PA

Built 1954 Load: 44.5 t ADT: 7,253

MCFARLAND RD.

Fair

Over: JOHNSTON RUN

1.5E MERCERSBURG/JOHNSTON, Franklin, PA

Built 1982 Load: 44.5 t ADT: 300

SR 3006

Fair

Over: I-70

@ I-70; 0.48 MI E SR 3007, Fulton, PA

Built 1960 Load: 44.5 t ADT: 105

T422 CHERRY LANE R

Fair

Over: LICKING CREEK

2 MI.SE.OF HUSTONTOWN, Fulton, PA

Built 1940 Load: 44.5 t ADT: 51

SR 0079

Fair

Over: SR 0188 SF 10MI CK R/R

FRANKLIN TOWNSHIP, Greene, PA

Built 1966 Load: 44.5 t ADT: 11,176

SR 0079

Fair

Over: SR 0188 SF 10MI CK R/R

FRANKLIN TOWNSHIP, Greene, PA

Built 1966 Load: 44.5 t ADT: 11,156

SR 3029

Fair

Over: HARES VALLEY CREEK

MAPLETON BORO.LINE, Huntingdon, PA

Built 1936 Load: 44.5 t ADT: 641

MARTIN GAP ROAD

Fair

Over: STANDING STONE CREEK

AT T-486 INTERSECT, Huntingdon, PA

Built 2001 Load: 44.5 t ADT: 119

SR0217

Fair

Over: CONEMAUGH RIVER

TORRANCE, Indiana, PA

Built 1952 Load: 44.5 t ADT: 7,173

SR0422 WB

Fair

Over: SR4422;SR4005;SR3035;RR

SR 422 WB over Wayne Ave., Indiana, PA

Built 1977 Load: 44.5 t ADT: 4,665

SR3007

Fair

Over: BEAVER RUN

NEAR SUMMERVILLE, Jefferson, PA

Built 1962 Load: 44.5 t ADT: 320

SR 1003

Fair

Over: LOST CREEK

2 MI NW MCALISTERVILLE, Juniata, PA

Built 1958 Load: 44.5 t ADT: 334

T-351 DEERVILLE RD

Fair

Over: CEDAR SPRING RUN

1 MILE N.OF MEXICO, Juniata, PA

Built 1973 Load: 44.5 t ADT: 500

SR 0247 TR 247

Fair

Over: SR 0084 I-84

JEFFERSON TWP OVER I-84, Lackawanna, PA

Built 1976 Load: 44.5 t ADT: 2,568

SR 2013

Fair

Over: CHOKE CREEK

THORNHURST TP 1.5M S 2015, Lackawanna, PA

Built 1958 Load: 44.5 t ADT: 355

PA TPK (I-476)

Fair

Over: SPRING BROOK

MOOSIC BOROUGH, Lackawanna, PA

Built 1957 Load: 44.5 t ADT: 6,575

PA 23; SR 0023

Fair

Over: Conestoga River

0.25 mi South of US 30, Lancaster, PA

Built 1992 Load: 44.5 t ADT: 13,527

PA 897; SR 0897

Fair

Over: US 222; SR 0222

1.0 MI. SE OF SWARTZVILLE, Lancaster, PA

Built 1975 Load: 44.5 t ADT: 6,088

SR 1026

Fair

Over: INDIAN RUN

0.75 MI.E. OF MOUNT AIRY, Lancaster, PA

Built 1934 Load: 44.5 t ADT: 2,474

SR 2035; (TWP RD)

Fair

Over: PEQUEA CREEK

0.75 MI.N.OF LEAMAN PLACE, Lancaster, PA

Built 1988 Load: 44.5 t ADT: 957

T-989 CREAMERY RD

Fair

Over: LITTLE COCALICO CREEK

1/2 MI SE OF SR 897, Lancaster, PA

Built 1975 Load: 44.5 t ADT: 310

S POPLAR ST

Fair

Over: CONOY CREEK

1200 FT SE OF SR 241, Lancaster, PA

Built 1950 Load: 44.5 t ADT: 1,550

PA TPK (I-376)

Fair

Over: HICKORY RUN

NORTH BEAVER TWP., Lawrence, PA

Built 1992 Load: 44.5 t ADT: 9,871

SR 2014 Furnace rd

Fair

Over: MILL CREEK

SHERIDAN, Lebanon, PA

Built 1927 Load: 44.5 t ADT: 420

GOLF ROAD T-471

Fair

Over: TRIB SWATARA CREEK

2.1S SHIRKSVILLE/TR SWATR, Lebanon, PA

Built 1930 Load: 44.5 t ADT: 200

US 22(LR 771)

Fair

Over: T-514(SPRINGHOUSE RD.)

US 22 OVER T-514, Lehigh, PA

Built 1953 Load: 44.5 t ADT: 76,351

I-78 & PA.309

Fair

Over: PA 29&SR1019 CEDAR CREST

CEDAR CREST EXIT #55(17), Lehigh, PA

Built 1989 Load: 44.5 t ADT: 71,591

PA 143(LR 285)

Fair

Over: ONTELAUNEE CREEK

ONTELAUNEE PARK, Lehigh, PA

Built 1921 Load: 44.5 t ADT: 2,759

SR 4014 (LR 39052)

Fair

Over: FELLS CREEK

@ LEDGE ROAD, Lehigh, PA

Built 1983 Load: 44.5 t ADT: 247

SR 0309 TR 309

Fair

Over: LITTLE BLACK CREEK

HAZLE TWP .4 M N TR 940, Luzerne, PA

Built 1928 Load: 44.5 t ADT: 15,032

ST JOHNS RD (CR29)

Fair

Over: BALLIET RUN

0.3 MILES NE OF SR 3011, Luzerne, PA

Built 1930 Load: 44.5 t ADT: 854

T-499 ZBICK ROAD

Fair

Over: HARVEYS CREEK

800 FT WEST OF SR 29, Luzerne, PA

Built 1993 Load: 44.5 t ADT: 200

LITTLE BEAR CR. RD

Fair

Over: LITTLE BEAR CREEK

NE OF LOYALSOCKVILLE, Lycoming, PA

Built 2006 Load: 44.5 t ADT: 20

SR 219-US 219

Fair

Over: WEST BR. CLARION RIVER

LANTZ CORNERS, McKean, PA

Built 1951 Load: 44.5 t ADT: 3,158

Showing 9,151-9,200 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.