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 0218

Poor

Over: ROBERTS RUN

WAYNE TOWNSHIP, Greene, PA

Built 1932 Load: 39.9 t ADT: 1,458

SR 3020 LINDEN ST

Poor

Over: LACKA CO RAIL AUTHORITY

SCRANTON CTY LINDEN ST, Lackawanna, PA

Built 1970 Load: 39.9 t ADT: 7,758

KNAPP RD

Poor

Over: Norfolk Southern RR

1000 FT SW OF US 6, Lackawanna, PA

Built 1987 Load: 39.9 t ADT: 1,400

T-966 WISSLER RD

Poor

Over: MIDDLE CREEK

1 MILE SW OF SR 322, Lancaster, PA

Built 1940 Load: 39.9 t ADT: 105

T546 HALFWAY DR.

Poor

Over: TULPEHOCKEN CREEK

T546 OVER TULPEHOCKEN CR., Lebanon, PA

Built 1930 Load: 39.9 t ADT: 150

SR 60 DOCK ST

Poor

Over: OVER OLD CANAL CREEK

CITY OF SHARON, Mercer, PA

Built 1923 Load: 39.9 t ADT: 7,198

SR 2017(LR794 SP)

Poor

Over: I-80

EAST STROUDSBURG EXIT#51, Monroe, PA

Built 1958 Load: 39.9 t ADT: 10,628

HUNGRY HOLLOW ROAD

Poor

Over: LITTLE KETTLE CREEK

450 FT WEST OF SR 44, Potter, PA

Built 1938 Load: 39.9 t ADT: 15

T338 FALL RUN ROAD

Poor

Over: FALL CREEK

4 MI.NW.OF NEW LEXINGTON, Somerset, PA

Built 1912 Load: 39.9 t ADT: 75

24TH STREET

Poor

Over: SEESE RUN

WINDBER 24TH STREET, Somerset, PA

Built 1900 Load: 39.9 t ADT: 300

T-484 AIRES HILL R

Poor

Over: OVER LOWER TWO MILE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1908 Load: 39.9 t ADT: 250

SR 59 KINZUA ROAD

Poor

Over: OVER MORRISON RUN

MEAD TOWNSHIP, Warren, PA

Built 1924 Load: 39.9 t ADT: 1,028

SR 2079 red lion a

Poor

Over: TRIB TO MUDDY CREEK

FELTON BORO, York, PA

Built 1951 Load: 39.9 t ADT: 1,735

SR 4015

Poor

Over: DAVIDSBURG RUN

1.3 MI.S.W. HARMONY GROVE, York, PA

Built 1958 Load: 39.9 t ADT: 189

Tabor Road

Poor

Over: Tacony Creek

E of Olney Avenue 18D11, Philadelphia, PA

Built 1957 Load: 39.9 t ADT: 11,000

PA 33 SB (LR1098)

Poor

Over: BUSHKILL CREEK

0.5MI S OF PA 191 EXIT, Northampton, PA

Built 2004 Load: 39.9 t ADT: 31,098

JACKS RUN RD

Poor

Over: SR0279

PD03 JACKS RUN NO. 3, Allegheny, PA

Built 1986 Load: 40.8 t ADT: 4,631

SR0128

Poor

Over: TRIB TO PINE RUN

KERR NO.2, Armstrong, PA

Built 1921 Load: 40.8 t ADT: 1,026

BOWERS ROAD

Poor

Over: SACONY CREEK

VILLAGE OF BOWERS, Berks, PA

Built 1930 Load: 40.8 t ADT: 500

T617 DOGWOOD DRIVE

Poor

Over: HUTCHINSON RUN

100 FT WEST OF T-515, Blair, PA

Built 1974 Load: 40.8 t ADT: 104

T-438 (TWP BR #1)

Poor

Over: SUGAR RUN

1.4 MI. EAST OF NEW ERA, Bradford, PA

Built 1975 Load: 40.8 t ADT: 75

SR0528

Poor

Over: LIT CONNOQUENESSING CR

PROSPECT ROAD, Butler, PA

Built 1940 Load: 40.8 t ADT: 594

SR 6 GRAND ARMY HY

Poor

Over: OVER WATSON RUN

VERNON TOWNSHIP, Crawford, PA

Built 1939 Load: 40.8 t ADT: 10,524

US 22; SR 0022

Poor

Over: SUSQUEHANNA RIVER

CLARKS FERRY, Dauphin, PA

Built 1986 Load: 40.8 t ADT: 26,191

SR 3004 CARTER RD

Poor

Over: OVER CONNEAUT CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 1961 Load: 40.8 t ADT: 124

PA 75; SR 0075

Poor

Over: BUCKS RUN

1.75 MI.N. OF GAP ROAD, Franklin, PA

Built 1953 Load: 40.8 t ADT: 3,037

TOWNSHIP ROAD 489

Poor

Over: SMITH CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1919 Load: 40.8 t ADT: 41

T354 MINERSVILLE R

Poor

Over: SHOUPS RUN

0.5 MI.N.OF DUDLEY, Huntingdon, PA

Built 1920 Load: 40.8 t ADT: 25

SR3003

Poor

Over: CHERRY RUN

NEAR RINGGOLD, Jefferson, PA

Built 1982 Load: 40.8 t ADT: 254

SR 0438 TR 438

Poor

Over: SOUTH BR TUNKHANNOCK CRK

SCOTT TWP .5 M E I-81, Lackawanna, PA

Built 1931 Load: 40.8 t ADT: 981

SR 2013

Poor

Over: BELLS RUN

2 MI SO OF OCTORARO, Lancaster, PA

Built 1938 Load: 40.8 t ADT: 700

SHAUB ROAD

Poor

Over: LANDIS RUN

500 FT S OF SR 1014, Lancaster, PA

Built 1992 Load: 40.8 t ADT: 310

BRIDGE 1709 T-647

Poor

Over: OVER BUTCHERY RUN

TRIPLE LINK SANDY LK TWP, Mercer, PA

Built 1958 Load: 40.8 t ADT: 141

ON TSR 817

Poor

Over: LAUREL RUN

MILROY, Mifflin, PA

Built 1940 Load: 40.8 t ADT: 1,157

SR 1008 (LR 45029)

Poor

Over: BRODHEAD CREEK

MILL CREEK ROAD, Monroe, PA

Built 1951 Load: 40.8 t ADT: 509

NORTH GULPH ROAD

Poor

Over: ABRAMS RUN

K OF P MALL 34C01/3366H7, Montgomery, PA

Built 1953 Load: 40.8 t ADT: 22,730

T-764 TULIP ROAD

Poor

Over: TRIB. SHAMOKIN CREEK

SNUFFTOWN SOUTH OF SR 61, Northumberland, PA

Built 1930 Load: 40.8 t ADT: 100

Hidden Valley Rd

Poor

Over: SHERMAN CREEK

1 MI SOUTH OF LOYSVILLE, Perry, PA

Built 1910 Load: 40.8 t ADT: 284

SR 1013

Poor

Over: PENNS CREEK

2 MI.SE OF NEW BERLIN, Snyder, PA

Built 1905 Load: 40.8 t ADT: 210

SR 3007

Poor

Over: RED RUN

3 MI.N.OF URSINA, Somerset, PA

Built 1937 Load: 40.8 t ADT: 268

T810 CLUB ROAD

Poor

Over: RAYSTOWN BR.JUNIATA RIV.

NEW BALTIMORE, Somerset, PA

Built 1930 Load: 40.8 t ADT: 50

SR 0092 TR 92

Poor

Over: TOWER BRANCH CREEK

LENOX TWP 300 N SR 2045, Susquehanna, PA

Built 1957 Load: 40.8 t ADT: 1,817

SR 4002

Poor

Over: CHARLESTON RUN

BORO OF WELLSBORO, Tioga, PA

Built 1935 Load: 40.8 t ADT: 4,289

SR 4012

Poor

Over: OVER MILL CREEK

0.5 MI SE OF SABINSVILLE, Tioga, PA

Built 1921 Load: 40.8 t ADT: 358

SR 2036

Poor

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1956 Load: 40.8 t ADT: 198

OLD PLANK ROAD

Poor

Over: CHARTIERS CREEK

SOUTH OF COUNTY AIRPORT, Washington, PA

Built 1922 Load: 40.8 t ADT: 200

SR1016 CALLICON RD

Poor

Over: LITTLE EQUINUNK CREEK

DAMASCUS TWP .1M E TR 191, Wayne, PA

Built 1962 Load: 40.8 t ADT: 857

T622 JOHN DAVIS RD

Poor

Over: SOUTH BRANCH CALKINS CR.

DAMASCUS TWP .5M W SR1004, Wayne, PA

Built 1974 Load: 40.8 t ADT: 30

MAIN STREET

Poor

Over: SPEERS RUN

MAIN STREET AT PRICEDALE, Westmoreland, PA

Built 1930 Load: 40.8 t ADT: 2,020

HOFFMAN HEIGHTS RD

Poor

Over: PORTERS RUN

400 WEST OF T729 INTER., Westmoreland, PA

Built 1914 Load: 40.8 t ADT: 50

Showing 22,901-22,950 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.