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 3024

Fair

Over: OVER STRAIGHT RUN

3 MI E OF ANSONIA, Tioga, PA

Built 1965 Load: 28.1 t ADT: 109

SR 62 RIVERSIDE DR

Fair

Over: OVER SAGE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1942 Load: 28.1 t ADT: 3,539

SR 3003 GEORGETOWN

Fair

Over: OVER SR 80 EB

IRWIN TOWNSHIP, Venango, PA

Built 1965 Load: 28.1 t ADT: 637

SR 62 IRVINE BRDG.

Fair

Over: OVER PRIVATE RD/RIVER

BROKENSTRAW TOWNSHIP, Warren, PA

Built 1985 Load: 28.1 t ADT: 1,634

SR 2004 HORTON AVE

Fair

Over: OVER TWO MILE RUN

SHEFFIELD T0WNSHIP, Warren, PA

Built 1930 Load: 28.1 t ADT: 843

T-562 BIG FOUR RD.

Fair

Over: OVER ACKLEY RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1990 Load: 28.1 t ADT: 100

FIRST STREET

Fair

Over: OVER MC GUIRE RUN

FIRST ST. TIDIOUTE BORO., Warren, PA

Built 1950 Load: 28.1 t ADT: 450

SR 0018

Fair

Over: CHARTIERS CREEK

CANTON TOWNSHIP, Washington, PA

Built 1938 Load: 28.1 t ADT: 10,868

TOWNSHIP ROAD 366

Fair

Over: SR 0079

AMWELL TOWNSHIP, Washington, PA

Built 1966 Load: 28.1 t ADT: 79

SR 0079

Fair

Over: SR 1025

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1997 Load: 28.1 t ADT: 20,567

SR 0084 I-84 EB

Fair

Over: SR 0191 TR 191

STERLING TWP OVER TR 191, Wayne, PA

Built 1969 Load: 28.1 t ADT: 7,403

SR 0191 TR 191

Fair

Over: FACTORY CREEK

BUCKINGHM TP @ JCT SR1023, Wayne, PA

Built 1932 Load: 28.1 t ADT: 366

SR 1002

Fair

Over: SOUTH BR CALKINS CREEK

DAMASCUS TWP- JCT SR 1004, Wayne, PA

Built 1953 Load: 28.1 t ADT: 129

SR 4039

Fair

Over: TRIBUTARY STARRUCCA CRK

STARRUCCA BO .5M S SR4010, Wayne, PA

Built 1991 Load: 28.1 t ADT: 147

TWP RTE T-469

Fair

Over: CARLEY BROOK

CARLEY BROOK, Wayne, PA

Built 1990 Load: 28.1 t ADT: 65

SR 0711

Fair

Over: BIG SPRING RUN

SAINT CLAIR TOWNSHIP, Westmoreland, PA

Built 1992 Load: 28.1 t ADT: 2,709

SR 2006

Fair

Over: LAUREL RUN

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 1950 Load: 28.1 t ADT: 131

SR 2007

Fair

Over: PA TPK (I-76)

NEAR CARPENTERTOWN, Westmoreland, PA

Built 1939 Load: 28.1 t ADT: 1,090

T-332 TANNERY ROAD

Fair

Over: ROARING RUN

0.6 MI NE OF COUNTY LINE, Westmoreland, PA

Built 1985 Load: 28.1 t ADT: 250

US 30; SR 0030

Fair

Over: T-813 TAXVILLE RD

2 MI NORTH OF LR126, York, PA

Built 1969 Load: 28.1 t ADT: 36,144

US 30; SR 0030

Fair

Over: Norfolk Southern RR

.5 MI.E. OF I-83, York, PA

Built 1948 Load: 28.1 t ADT: 46,585

3044 Indian Rock

Fair

Over: W BR CODORUS CREEK

2 M. N.E. OF NEW SALEM, York, PA

Built 1972 Load: 28.1 t ADT: 2,357

RIVER ROAD

Fair

Over: MILL STREAM

MILL STRM; L. CHANCEFORD, York, PA

Built 1963 Load: 28.1 t ADT: 85

BECK MILL RD

Fair

Over: SOUTH BRANCH CONEWAGO CR

S BR CONEW 2 S HANOVER, York, PA

Built 1973 Load: 28.1 t ADT: 500

MILLBROOK ROAD

Fair

Over: WOODHAVEN ROAD

LIBERTY BELL TRACK3373F07, Philadelphia, PA

Built 1964 Load: 28.1 t ADT: 6,368

WOODHAVEN ROAD

Fair

Over: ACADEMY ROAD

EAST OF ROUTE 1 3373D06, Philadelphia, PA

Built 1965 Load: 28.1 t ADT: 69,584

INTERSTATE 95 N.B.

Fair

Over: ISLAND AVENUE

S.GIRARD PT.BRG. 3699C08, Philadelphia, PA

Built 1984 Load: 28.1 t ADT: 33,457

INTERSTATE 95 S.B.

Fair

Over: ISLAND AVENUE

S.GIRARD PT.BRG. 3699C08, Philadelphia, PA

Built 1984 Load: 28.1 t ADT: 31,910

INTERSTATE 95

Fair

Over: ORTHODOX-PEARCE STREET

NR.BERMUDA STREET 3481H10, Philadelphia, PA

Built 1966 Load: 28.1 t ADT: 251,200

RAMP C-D WEST S.B.

Fair

Over: ISLAND AVENUE

S.GIRARD PT.BRG. 3699C08, Philadelphia, PA

Built 1984 Load: 28.1 t ADT: 13,661

RAMP U FROM PLATT

Fair

Over: RELOCATED BARTRAM AVENUE

S. OF PLATT BRG. 3699E08, Philadelphia, PA

Built 1983 Load: 28.1 t ADT: 24,252

BARTRAM AVE(SB)OFF

Fair

Over: SLUDGE LAGOONS;ACCESS RD

NORTH PLATT BRG. 3699E08, Philadelphia, PA

Built 1985 Load: 28.1 t ADT: 9,107

EAST OFF RAMP C-D

Fair

Over: ISLAND AVENUE

S.GIRARD PT.BRG. 3699C08, Philadelphia, PA

Built 1984 Load: 28.1 t ADT: 21,087

WILLITS ROAD

Fair

Over: CONRAIL;BUSTLETON BRANCH

.2MI.SE.WELSH RD. 3372F10, Philadelphia, PA

Built 1967 Load: 28.1 t ADT: 19,455

84TH STREET

Fair

Over: SW DRAINAGE CANAL

DRINAGE CANAL 3698K07, Philadelphia, PA

Built 1915 Load: 28.1 t ADT: 26,533

ISLAND AVENUE

Fair

Over: DRAINAGE CANAL

ISLAND;DRAINAGE CN3699B07, Philadelphia, PA

Built 1915 Load: 28.1 t ADT: 35,163

HENRY AVENUE

Fair

Over: WISSAHICKON CR;LINCOLN D

FAIRMOUNT PARK 3479J07, Philadelphia, PA

Built 1931 Load: 28.1 t ADT: 26,915

Chalfont Drive

Fair

Over: Byberry Creek

W of Waldemire Dr 20B01, Philadelphia, PA

Built 1965 Load: 28.1 t ADT: 5,000

RAMP F-DE S.B. OFF

Fair

Over: OPEN GROUND

WALT WHITMAN INTR.3700H05, Philadelphia, PA

Built 1974 Load: 28.1 t ADT: 10,376

RAMP A-OFF

Fair

Over: VENANGO STREET

BETSY ROSS INTER. 3591F03, Philadelphia, PA

Built 1974 Load: 28.1 t ADT: 13,408

RAMP A-OFF

Fair

Over: CASTOR AVE.& RAMP C

BETSY ROSS INTERCH3591F03, Philadelphia, PA

Built 1974 Load: 28.1 t ADT: 13,408

RAMP Y N.B. OFF

Fair

Over: EARTH FILL

BESTY ROSS INTERCH3591G01, Philadelphia, PA

Built 1975 Load: 28.1 t ADT: 15,861

T-363 SHERMAN ROAD

Fair

Over: TEMPLE CREEK

1100 WEST OF SR 18, Erie, PA

Built 1995 Load: 28.1 t ADT: 162

DARK HOLLOW ROAD

Fair

Over: TRIB.NESHAMINY CREEK

1.1 MI NE SR2039 3036-A10, Bucks, PA

Built 1935 Load: 28.1 t ADT: 105

FAN HOLLOW RD

Fair

Over: JENNINGS RUN

FAN HOLLOW, Fayette, PA

Built 2005 Load: 28.1 t ADT: 550

Ramp B

Fair

Over: Norfolk Southern RR Prop

US 11NB to I-81 NB Ramp B, Cumberland, PA

Built 1972 Load: 28.1 t ADT: 5,894

MEADOW LANE DRIVE

Fair

Over: TRIB. TO DELAWARE RIVER

NE OF CHESTNUT HILL, Northampton, PA

Built 1980 Load: 28.1 t ADT: 100

Water Street

Fair

Over: Trib to Swatara Creek

200 s of Winchester Circ, Lebanon, PA

Built 2013 Load: 28.1 t ADT: 500

Hickory Blvd

Fair

Over: Trib To Quittapahilla Cr

300 W of Short Road, Lebanon, PA

Built 2013 Load: 28.1 t ADT: 150

Stanton Road

Fair

Over: Back Creek

Saltlick Township, Fayette, PA

Built 1901 Load: 28.1 t ADT: 150

Showing 2,451-2,500 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.