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

T539 BALTZER BR RD

Fair

Over: STONYCREEK RIVER

1 MI.S.OF SHANKSVILLE, Somerset, PA

Built 1989 Load: 50.8 t ADT: 50

SR 3033

Fair

Over: TERRY CREEK

RUSH TWP .5 M N TR 706, Susquehanna, PA

Built 1981 Load: 50.8 t ADT: 61

SR 2027

Fair

Over: CANOE CAMP CREEK

2 MI E OF CANOE CAMP, Tioga, PA

Built 1985 Load: 50.8 t ADT: 460

SR 3001

Fair

Over: CEDAR RUN

2 MI SOUTH OF LEETONIA, Tioga, PA

Built 1932 Load: 50.8 t ADT: 21

T-438

Fair

Over: YARNELL BROOK

1.9 MI. S. ACADEMY CORNER, Tioga, PA

Built 1920 Load: 50.8 t ADT: 54

SR 1013

Fair

Over: OVER I-80 EB

2 MI W OF WHITE DEER, Union, PA

Built 1970 Load: 50.8 t ADT: 378

SR 1005

Fair

Over: BUFFALO CREEK

BORO OF LEWISBURG, Union, PA

Built 1986 Load: 50.8 t ADT: 4,196

SR 1005

Fair

Over: LEWISBURG BUFFALO CRK RR

ONE MI NORTH OF LEWISBURG, Union, PA

Built 1947 Load: 50.8 t ADT: 4,196

SR 62 WASHINGTON X

Fair

Over: OVER CONRAIL & FRENCH CK

CITY OF FRANKLIN, Venango, PA

Built 1951 Load: 50.8 t ADT: 10,420

MILL STREET

Fair

Over: OVER INDIAN CAMP RUN

YOUNGSVILLE BOROUGH, Warren, PA

Built 1993 Load: 50.8 t ADT: 350

SR 0018

Fair

Over: BURGETTS FORK RACCOON CK

BURGETTSTOWN BOROUGH, Washington, PA

Built 1973 Load: 50.8 t ADT: 10,958

SR 0231

Fair

Over: BRANCH OF WHEELING CREEK

EAST FINLEY TOWNSHIP, Washington, PA

Built 1929 Load: 50.8 t ADT: 344

SR 3029

Fair

Over: TENMILE CREEK

SOUTH FRANKLIN TOWNSHIP, Washington, PA

Built 1933 Load: 50.8 t ADT: 576

SR 0136

Fair

Over: SEWICKLEY CREEK

SEWICKLEY & S. HUNTINGDON, Westmoreland, PA

Built 1997 Load: 50.8 t ADT: 4,072

SR 2037

Fair

Over: BRANCH OF FOURMILE RUN

COOK TOWNSHIP, Westmoreland, PA

Built 1924 Load: 50.8 t ADT: 137

SR 0092 TR 92

Fair

Over: TRIB TO TUNKHANNOCK CRK

NICHOLSON TP .1M N SR1027, Wyoming, PA

Built 1957 Load: 50.8 t ADT: 1,600

MAIN STREET

Fair

Over: MEHOOPANY CREEK

INTERSECTION W/ SR 3001, Wyoming, PA

Built 1990 Load: 50.8 t ADT: 150

Bridge Street

Fair

Over: Yellow Breeches Creek

NEW CUMBERLAND BORO LINE, York, PA

Built 1936 Load: 50.8 t ADT: 9,707

SR 2089

Fair

Over: TRIB TO E BR OF CODORUS

2 MI NORTH OF WINTERSTOWN, York, PA

Built 1927 Load: 50.8 t ADT: 1,876

KAREN LANE

Fair

Over: GITTS RUN

1 MI NE OF HANOVER, York, PA

Built 1986 Load: 50.8 t ADT: 2,500

HILLTOP ROAD

Fair

Over: OTTER CREEK

3NW SGL#83/OTTER CREEK, York, PA

Built 1975 Load: 50.8 t ADT: 200

PENTLAND ROAD

Fair

Over: CODORUS CREEK

.8E CODORUS S P/CODOR.CK., York, PA

Built 1999 Load: 50.8 t ADT: 300

BUTTER ROAD

Fair

Over: FOX RUN

0.9 MI N OF SR 74, York, PA

Built 1974 Load: 50.8 t ADT: 2,050

INTERSTATE 95 S.B.

Fair

Over: BROWN STREET

.1MI.N.SPR.GARD.3590H07, Philadelphia, PA

Built 1975 Load: 50.8 t ADT: 66,507

RHAWN STREET

Fair

Over: CSX N.Y.SHORT LINE

NEAR DUNGAN ROAD 3371K09, Philadelphia, PA

Built 1905 Load: 50.8 t ADT: 18,845

RAMP 6 W.B.ON

Fair

Over: OPEN GROUND

SPRING GARDEN INT.3590A06, Philadelphia, PA

Built 1956 Load: 50.8 t ADT: 7,018

PA 722; SR 0722

Fair

Over: TRIB.LITTLE CONNESTOGA

S.OF EAST PETERSBURG, Lancaster, PA

Built 1997 Load: 50.8 t ADT: 11,368

SR 322-US 322

Fair

Over: ANDERSON CREEK

ROCKTON, Clearfield, PA

Built 1997 Load: 50.8 t ADT: 3,087

Willow Street

Fair

Over: Trib To Muddy Creek

S.End of Adamstown Boroug, Lancaster, PA

Built 1997 Load: 50.8 t ADT: 1,648

SR 0079

Fair

Over: CHARTIERS CREEK

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1997 Load: 50.8 t ADT: 26,227

MCGILL STREET

Fair

Over: ELK CREEK

174 FT N OF SR 120 INTER, Elk, PA

Built 1998 Load: 50.8 t ADT: 3,500

HOT METAL STREET

Fair

Over: MON RIVER & PRIVATE RR

145 Hot Metal Bridge, Allegheny, PA

Built 1904 Load: 50.8 t ADT: 17,500

RampC 95NB-Armingo

Fair

Over: FRANKFORD CREEK

BETSY ROSS INTERCH3591G01, Philadelphia, PA

Built 1999 Load: 50.8 t ADT: 5,112

EAST EAGLE ROAD

Fair

Over: COBBS CREEK

W.HAVERFORD AVE 26F05, Delaware, PA

Built 1927 Load: 50.8 t ADT: 24,967

MILL STREET

Fair

Over: TUNUNGWANT CREEK

575 FT NW OF MAIN ST, McKean, PA

Built 2001 Load: 50.8 t ADT: 1,360

RAMP NB

Fair

Over: INTERSTATE 95

1MI.N OF I-95 3699A09, Philadelphia, PA

Built 2002 Load: 50.8 t ADT: 5,003

COOKS RUN ROAD

Fair

Over: CAMP RUN

3 MI NW OF SR 120, Clinton, PA

Built 2001 Load: 50.8 t ADT: 25

MASTEN RD

Fair

Over: BOVIER RUN

8 MI EAST OF SR 14, Lycoming, PA

Built 1998 Load: 50.8 t ADT: 20

SR0830

Fair

Over: SR0080 EB&WB

BUD SCHERER NO.1, Jefferson, PA

Built 2005 Load: 50.8 t ADT: 662

PARKWAY EAST

Fair

Over: SQ HILL TN VULT

UNDER W POTAL/SQ HILL TN, Allegheny, PA

Built 1955 Load: 50.8 t ADT: 75,287

SR 4003

Fair

Over: BRADLEY RUN

3 MI S CLARA, Potter, PA

Built 2011 Load: 50.8 t ADT: 142

PINE GROVE RD

Fair

Over: MCCREARY RUN

AT CAMP RD, Lancaster, PA

Built 2009 Load: 50.8 t ADT: 500

FLUSHING ROAD

Fair

Over: BRANCH OF NESHAMINY CR

BENSALEM TOWNSHIP 3374-E2, Bucks, PA

Built 1948 Load: 50.9 t ADT: 100

SR 3018

Fair

Over: TUSCARORA CREEK

EAST WATERFORD, Juniata, PA

Built 1940 Load: 51.2 t ADT: 139

CAMPGROUND ROAD

Fair

Over: TUB RUN CREEK

YOUGH LAKE CAMPGROUND, Fayette, PA

Built 1989 Load: 51.5 t ADT: 50

RT 0028 NB

Fair

Over: SR 1028 BAKERSTOWN ROAD

BAKERSTOWN INTERCHANGE, Allegheny, PA

Built 1972 Load: 51.7 t ADT: 8,801

LYSLE BL

Fair

Over: CROOKED RUN

500S.OF N.INTER/W SR2037, Allegheny, PA

Built 1937 Load: 51.7 t ADT: 18,145

RAMP F

Fair

Over: I-279 NB RAMP D ALLGY RI

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 51.7 t ADT: 18,158

FREEPORT RD

Fair

Over: SR 28 NB

SB RAMP OVER 28 NB, Allegheny, PA

Built 1965 Load: 51.7 t ADT: 4,477

PA TPK (I-76)

Fair

Over: SR 0008 LR72

HAMPTON-TPK RP.AB O/TRE 8, Allegheny, PA

Built 1950 Load: 51.7 t ADT: 8,559

Showing 10,751-10,800 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.