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 3023

Fair

Over: LAUREL RUN

MILFORD, Somerset, PA

Built 1965 Load: 45.4 t ADT: 134

T743 QUEMNG DAM RD

Fair

Over: TRIB TO QUEMAHONING CR

2 MI.S.OF HOLLSOPPLE, Somerset, PA

Built 1930 Load: 45.4 t ADT: 103

T383 PETENBRINK RD

Fair

Over: CASSELMAN RIVER

2 MI.SE.OF GARRETT, Somerset, PA

Built 1998 Load: 45.4 t ADT: 100

SR 3012 TWP RD 404

Fair

Over: WHITE CREEK

SPRNGVLE TP 1.5M W SR3013, Susquehanna, PA

Built 1949 Load: 45.4 t ADT: 162

SR 49

Fair

Over: OVER MILL CREEK

BOROUGH OF WESTFIELD, Tioga, PA

Built 1974 Load: 45.4 t ADT: 4,510

SR 0414

Fair

Over: OVER BLACKS CREEK

2 MI W OF LIBERTY, Tioga, PA

Built 1941 Load: 45.4 t ADT: 2,234

SR 0660

Fair

Over: OVER ELK RUN

3.5 MI SW OF MANSFIELD, Tioga, PA

Built 1984 Load: 45.4 t ADT: 1,750

SR 4013

Fair

Over: OVER YARNELL BROOK

2 MI SE OF KNOXVILLE, Tioga, PA

Built 1962 Load: 45.4 t ADT: 633

T-452

Fair

Over: STRAIGHT RUN

0.9 MI. NORTH OF ASAPH, Tioga, PA

Built 1977 Load: 45.4 t ADT: 40

SR 62 RIVERSIDE DR

Fair

Over: OVER SAGE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1942 Load: 45.4 t ADT: 3,539

SR 3010

Fair

Over: OVER LT SCRUBGRASS CK BR

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1942 Load: 45.4 t ADT: 129

SR 1015 OLD RUSSEL

Fair

Over: OVER CONEWANGO CREEK

PINE GROVE TOWNSHIP, Warren, PA

Built 1987 Load: 45.4 t ADT: 407

SR 3007 E.MAIN ST.

Fair

Over: OVER MCGUIRE RUN

TIDIOUTE BOROUGH, Warren, PA

Built 1993 Load: 45.4 t ADT: 1,505

GRANT STREET

Fair

Over: OVER TIDIOUTE CREEK

GRANT ST. TIDIOUTE BORO., Warren, PA

Built 1940 Load: 45.4 t ADT: 250

SR 0040

Fair

Over: DUTCH FORK BUFFALO CREEK

DONEGAL TOWNSHIP, Washington, PA

Built 1961 Load: 45.4 t ADT: 1,796

SR 0070

Fair

Over: DONNAN AVENUE

CITY OF WASHINGTON, Washington, PA

Built 1960 Load: 45.4 t ADT: 27,415

SR 0070

Fair

Over: SR 0018 & CITY STREETS

CITY OF WASHINGTON, Washington, PA

Built 1993 Load: 45.4 t ADT: 21,550

SR 2036

Fair

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1983 Load: 45.4 t ADT: 198

AUNT CLARA ROAD

Fair

Over: TRIB AUNT CLARA FORK

NORTH OF PURDY, Washington, PA

Built 1960 Load: 45.4 t ADT: 50

SR 4023

Fair

Over: TRIB W BR LACKAWAX RIVER

MT PLEASNT TP 1M N SR4025, Wayne, PA

Built 1922 Load: 45.4 t ADT: 229

TWP RTE T550

Fair

Over: BIG BROOK

DYBERRY BRIDGE, Wayne, PA

Built 1905 Load: 45.4 t ADT: 40

HATCHERY ROAD

Fair

Over: WEST BR LACKAWAXEN RIVER

MT PLEASANT .5 MI S RT371, Wayne, PA

Built 1927 Load: 45.4 t ADT: 25

BROWN STREET

Fair

Over: LACKAWAXEN RIVER

Brown Street Honesdale, Wayne, PA

Built 1944 Load: 45.4 t ADT: 3,245

SR 0030

Fair

Over: MILLERS RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1953 Load: 45.4 t ADT: 8,632

FERNCLIFF DRIVE

Fair

Over: SR 0070

NORTH BELLE VERNON BORO., Westmoreland, PA

Built 1958 Load: 45.4 t ADT: 66

SR 0119

Fair

Over: TWP. THERMAL ROAD

NEW STANTON BOROUGH, Westmoreland, PA

Built 1977 Load: 45.4 t ADT: 13,819

SR 0981

Fair

Over: BARREN RUN

SOUTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1931 Load: 45.4 t ADT: 2,376

SR 3041

Fair

Over: SEWICKLEY CREEK

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1904 Load: 45.4 t ADT: 208

SR 4037

Fair

Over: BRANCH OF BRUSH RUN

PENN TOWNSHIP, Westmoreland, PA

Built 1939 Load: 45.4 t ADT: 1,339

PA 24; SR 0024

Fair

Over: MILL RACE TO CODORUS CR

2 MI NE PLEASUREVILLE, York, PA

Built 1933 Load: 45.4 t ADT: 5,989

PA 74; Delta Rd.

Fair

Over: MUDDY CREEK

3 MI. N. OF DELTA, York, PA

Built 1988 Load: 45.4 t ADT: 5,024

Carlisle Road

Fair

Over: Conewago Creek

2 MI S.E. Of Rossville, York, PA

Built 1954 Load: 45.4 t ADT: 8,178

PA 74; SR 0074

Fair

Over: DOGWOOD RUN

1 MI.N. OF DILLSBURG, York, PA

Built 1917 Load: 45.4 t ADT: 6,644

Lewisberry Road

Fair

Over: Tributary Bennett Run

0.7 MI S.E. Of Lewisberry, York, PA

Built 1972 Load: 45.4 t ADT: 4,636

Lewisberry Road

Fair

Over: Bennett Run

0.7 MI N. Of Lewisberry, York, PA

Built 1972 Load: 45.4 t ADT: 3,850

PA 425; SR 0425

Fair

Over: OTTER CREEK

YORK FURNACE, York, PA

Built 1991 Load: 45.4 t ADT: 172

PA 616; SR 0616

Fair

Over: TRIB S BR CODORUS CREEK

.5 MI.N.W. OF RAILROAD, York, PA

Built 1984 Load: 45.4 t ADT: 2,058

T542; HREBIK ROAD

Fair

Over: DEER CREEK

1.0SW STEWARTWN/DEER CR, York, PA

Built 1959 Load: 45.4 t ADT: 69

SCHUYLKILL EXWY.WB

Fair

Over: RAMP C;FROM VINE STREET

VINE ST.INTERCH. 3590A06, Philadelphia, PA

Built 1988 Load: 45.4 t ADT: 64,736

DELAWARE EXPWAY.

Fair

Over: RICHMOND STREET

NEAR CASTOR AVE. 3591G02, Philadelphia, PA

Built 1965 Load: 45.4 t ADT: 158,822

INTERSTATE 95 N.B.

Fair

Over: AMTRAK

NR.ASHBURNER STR. 3482K04, Philadelphia, PA

Built 1965 Load: 45.4 t ADT: 76,339

BRIDGE STREET

Fair

Over: BRANCH FRANKFORD CREEK

FRANKFORD ARSENAL 3481K10, Philadelphia, PA

Built 1970 Load: 45.4 t ADT: 7,901

WAYNE AVENUE

Fair

Over: SEPTA (CHESTNUT HILL)

WAYNE;WASHINGTON 3479K05, Philadelphia, PA

Built 1894 Load: 45.4 t ADT: 6,433

62nd Street

Fair

Over: AMTRAK (NE Corridor)

S of Paschall Ave 36G04, Philadelphia, PA

Built 1910 Load: 45.4 t ADT: 4,000

Morrell Avenue

Fair

Over: Byberry Creek

W of Frankford Ave 20B03, Philadelphia, PA

Built 1958 Load: 45.4 t ADT: 7,800

T-391 BRICKYARD RD

Fair

Over: BREAKNECK CREEK

BTW T406 & SR3015, Butler, PA

Built 1999 Load: 45.4 t ADT: 500

PENNSGROVE ROAD

Fair

Over: WEST BRANCH BIG ELK CRK

NE OXFORD 44B8/3798A9, Chester, PA

Built 1998 Load: 45.4 t ADT: 374

SOUTH WARNER ROAD

Fair

Over: RAMPS L AND Q

S.I-76/202 34A2/3366F8, Montgomery, PA

Built 2001 Load: 45.4 t ADT: 10,208

RIVER ROAD

Fair

Over: PAUNNACUSSING CREEK

.1MI.TO LR 09066 18D07, Bucks, PA

Built 2001 Load: 45.4 t ADT: 1,532

SR 99-I 99

Fair

Over: T-376 AND SPRING CREEK

2 MI NE OF STATE COLLEGE, Centre, PA

Built 2002 Load: 45.4 t ADT: 13,665

Showing 9,551-9,600 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.