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

PA TPK RAMP A/C

Fair

Over: PA TPK (I-76)

UPPER ALLEN TWP, Cumberland, PA

Built 1950 Load: 39.0 t ADT: 6,438

CAMPGROUND ROAD

Fair

Over: DOUBLING GAP RUN

0.2 MI S OF SR 233, Cumberland, PA

Built 1956 Load: 39.0 t ADT: 20

ALLEGHENY STREET

Fair

Over: STONY CREEK

200 FT NW OF SR 0322, Dauphin, PA

Built 1942 Load: 39.0 t ADT: 1,000

US 22 WB; SR 0022

Fair

Over: I-81; SR 8003 RP A@B

INTER OF I81 & US22, Dauphin, PA

Built 1977 Load: 39.0 t ADT: 18,505

I-81 NB; SR 0081

Fair

Over: SR 2017

SHELLSVILLE, Dauphin, PA

Built 1967 Load: 39.0 t ADT: 25,156

ISLE OF Q RD T-466

Fair

Over: WICONISCO CREEK

3W E-VILLE/RIFE/WICONISCO, Dauphin, PA

Built 1990 Load: 39.0 t ADT: 150

SR 8003 RAMP D

Fair

Over: I-81;US 22/322;RAMPS ABC

INTER OF I81 & US 22, Dauphin, PA

Built 1977 Load: 39.0 t ADT: 2,818

INTERSTATE 95(SB)

Fair

Over: RAMP M2 TO I-95 NB

JUNCTION W/I-476 43K01, Delaware, PA

Built 1975 Load: 39.0 t ADT: 42,682

4TH STREET

Fair

Over: RIDLEY CREEK

EDDYSTONE 43J04, Delaware, PA

Built 1948 Load: 39.0 t ADT: 14,523

PROVIDENCE ROAD

Fair

Over: RIDLEY CREEK

.5MI.N.MACDADE BVD.43G01, Delaware, PA

Built 1982 Load: 39.0 t ADT: 7,660

MARKET STREET

Fair

Over: MARCUS HOOK CREEK

1MI.SOUTH RTE.322 42H08, Delaware, PA

Built 1968 Load: 39.0 t ADT: 9,422

MID-COUNTY EXWY.SB

Fair

Over: MEADOWBROOK RUN

HAVERFORD TWP. 25J03, Delaware, PA

Built 1967 Load: 39.0 t ADT: 43,234

MILL ROAD

Fair

Over: E.BRANCH NAAMANS CREEK

UPPER CHICHESTER 42D07, Delaware, PA

Built 1966 Load: 39.0 t ADT: 2,645

MARPLE AVENUE

Fair

Over: DARBY CREEK

300 FT N SR2016 ADC 21-F5, Delaware, PA

Built 1928 Load: 39.0 t ADT: 4,066

GARRETT AVENUE

Fair

Over: SEPTA HIGH SPEED LINE

GARRETT AVENUE 3477G6, Delaware, PA

Built 1940 Load: 39.0 t ADT: 250

SR 79 SB

Fair

Over: OVER SR 3020 & ELK CK.

MCKEAN TOWNSHIP, Erie, PA

Built 1969 Load: 39.0 t ADT: 9,243

SR 90 EB

Fair

Over: OVER T-404 FRANKLIN ROAD

FAIRVIEW TOWNSHIP, Erie, PA

Built 1959 Load: 39.0 t ADT: 10,226

SR 90 EB

Fair

Over: OVER T-666 ROHL ROAD

GREENFIELD TOWNSHIP, Erie, PA

Built 1959 Load: 39.0 t ADT: 12,779

T-800 KINTER HILL

Fair

Over: CONNEAUTTEE CREEK

300 FT WEST OF SR 99, Erie, PA

Built 1975 Load: 39.0 t ADT: 391

WEST NORMAL STREET

Fair

Over: CONNEAUTTEE CREEK

500 FT SW OF SR 99, Erie, PA

Built 1973 Load: 39.0 t ADT: 747

SR 0040

Fair

Over: JENNINGS RUN

MENALLEN SOUTH TOWNSHIP, Fayette, PA

Built 1942 Load: 39.0 t ADT: 8,510

SR 1058

Fair

Over: JACOBS CREEK

BULLSKIN & MT. PLEASANT T, Fayette, PA

Built 1948 Load: 39.0 t ADT: 1,390

SR 4004

Fair

Over: WOODEN BRIDGE CREEK

1.5 MI.W.OF HUSTONTOWN, Fulton, PA

Built 1957 Load: 39.0 t ADT: 193

SR 0021

Fair

Over: SOUTH FORK WHEELING CK.

RICHHILL TOWNSHIP, Greene, PA

Built 1930 Load: 39.0 t ADT: 1,842

SR 0021

Fair

Over: NORTH FORK WHEELING CK.

RICHHILL TOWNSHIP, Greene, PA

Built 1930 Load: 39.0 t ADT: 1,842

SR 0079

Fair

Over: SR 2009

PERRY TOWNSHIP, Greene, PA

Built 1970 Load: 39.0 t ADT: 10,321

SR 0079

Fair

Over: SR 2009

PERRY TOWNSHIP, Greene, PA

Built 1970 Load: 39.0 t ADT: 10,151

SR 1003

Fair

Over: SR 0079

FRANKLIN TOWNSHIP, Greene, PA

Built 1966 Load: 39.0 t ADT: 294

SR 3008

Fair

Over: TOMS RUN

GILMORE TOWNSHIP, Greene, PA

Built 1961 Load: 39.0 t ADT: 172

SR 3016

Fair

Over: SOUTH FORK WHEELING CK.

RICHHILL TOWNSHIP, Greene, PA

Built 1960 Load: 39.0 t ADT: 100

PA 26

Fair

Over: HARTSLOG CREEK

2.4 MILE NORTH OF SR 3011, Huntingdon, PA

Built 1950 Load: 39.0 t ADT: 4,511

PA 747

Fair

Over: HILL VALLEY CREEK

0.8 MILE SOUTH OF TR 522, Huntingdon, PA

Built 1949 Load: 39.0 t ADT: 2,184

T409 TUSCAR CRK RD

Fair

Over: TUSCARORA CREEK

1 MI.S.OF BLAIRS MILLS, Huntingdon, PA

Built 1923 Load: 39.0 t ADT: 66

T409 TUSCAR CRK RD

Fair

Over: TROUGH SPRING BRANCH

1 MI.S.OF BLAIRS MILLS, Huntingdon, PA

Built 1923 Load: 39.0 t ADT: 66

SR 4031

Fair

Over: SPRUCE CREEK

0.2 MILE NORTH OF PA 45, Huntingdon, PA

Built 1909 Load: 39.0 t ADT: 386

T408 HAPPY HILL RD

Fair

Over: LITTLE TROUGH CREEK

1 MI.N.OF CALVIN, Huntingdon, PA

Built 1989 Load: 39.0 t ADT: 50

SR0119 SB

Fair

Over: SR0286

HAMILL SB, Indiana, PA

Built 1970 Load: 39.0 t ADT: 2,693

SR0422

Fair

Over: ANTHONY RUN

ANTHONY RUN NO.1, Indiana, PA

Built 1958 Load: 39.0 t ADT: 10,990

SR0553

Fair

Over: YELLOW CREEK

MENTCLE NO.1, Indiana, PA

Built 1930 Load: 39.0 t ADT: 2,363

SR0553

Fair

Over: ABANDONED RR

HM3 CHARLES "DOC" BRG., Indiana, PA

Built 1980 Load: 39.0 t ADT: 2,549

SR 22-US 22

Fair

Over: LOST CREEK

1 MI NE CUBA MILLS, Juniata, PA

Built 1973 Load: 39.0 t ADT: 10,347

SR 2013

Fair

Over: SAND SPRING CREEK

THORNHURST TP .5M S 2015, Lackawanna, PA

Built 1969 Load: 39.0 t ADT: 355

PA 272; SR 0272

Fair

Over: LITTLE CONOWINGO CREEK

0.5 MI.W. OF OAKRYN, Lancaster, PA

Built 1980 Load: 39.0 t ADT: 3,254

PA 501; Furn. Hill

Fair

Over: LITITZ RUN

0.25 MI.N. OF LITITZ BORO, Lancaster, PA

Built 1934 Load: 39.0 t ADT: 12,698

PA 999;Blue rk.rd.

Fair

Over: LITTLE CONESTOGA CREEK

WEST OF MILLERSVILLE, Lancaster, PA

Built 1963 Load: 39.0 t ADT: 5,626

1046 Fivepointvill

Fair

Over: LITTLE MUDDY CREEK

0.2 MI.E. OF RED RUN, Lancaster, PA

Built 1951 Load: 39.0 t ADT: 1,132

HARTMAN ST; T-617

Fair

Over: LR 1124 INCOMPLETE ROAD

1.25 MI.S. OF PA 23, Lancaster, PA

Built 1975 Load: 39.0 t ADT: 2,487

SR 3007

Fair

Over: CONOWINGO CREEK

1MI N OF GOSHEN, Lancaster, PA

Built 1955 Load: 39.0 t ADT: 325

T-646

Fair

Over: PA TPK (I-76)

CLAY TWP, Lancaster, PA

Built 1949 Load: 39.0 t ADT: 200

BEN FRANKLIN HWY

Fair

Over: BIG RUN

.5 MI NW OF SR 0422, Lawrence, PA

Built 1950 Load: 39.0 t ADT: 7,438

Showing 7,451-7,500 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.