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 3016 DAVIS ST

Good

Over: SR 0081 I-81

SCRANTON CITY OVER I-81, Lackawanna, PA

Built 2003 Load: 24.5 t ADT: 16,046

SR 99-I 99

Good

Over: SR 220 / N.BALD EAGLE CR

1.5 MILE N PORT MATILDA, Centre, PA

Built 2005 Load: 24.5 t ADT: 11,016

SR 219-US 219

Good

Over: SR 4015 (ELM STREET)

CITY OF BRADFORD, McKean, PA

Built 2008 Load: 24.5 t ADT: 3,573

SR 1001

Good

Over: QUEENS RUN

1 MI EAST OF FARRANDSVILL, Clinton, PA

Built 2009 Load: 24.5 t ADT: 270

CONCORD CHURCH RD

Good

Over: BRUSH CREEK

AT BRUSH CREEK PARK, Beaver, PA

Built 2010 Load: 24.5 t ADT: 1,207

N. 10th Street

Good

Over: Limestone Run

N 10th St in Linntown, Union, PA

Built 2015 Load: 24.5 t ADT: 1,000

N. 11th Street

Good

Over: LIMESTONE RUN

N.11th Street in Linntown, Union, PA

Built 2015 Load: 24.5 t ADT: 750

TR 287

Good

Over: OVER TIOGA RIVER

N.TIOGA BORO-RIVER BRIDGE, Tioga, PA

Built 1949 Load: 24.9 t ADT: 4,257

RAMP A TO 376 EB

Good

Over: CAMPBELL RUN ROAD

79/376 INTERCHANGE, Allegheny, PA

Built 1973 Load: 25.4 t ADT: 13,036

US 222SB(LR157)

Good

Over: SR 8009SB ON RAMP TO 222

2 MI.S.OF KUTZTOWN, Berks, PA

Built 1972 Load: 25.4 t ADT: 11,598

SR 1002

Good

Over: BVR DAM BR JUNIATA RIVER

.25 MI.E.OF CROSS KEYS, Blair, PA

Built 1983 Load: 25.4 t ADT: 7,837

SELLERSVILLE BYPAS

Good

Over: SR 4085 BETHLEHEM PIKE

.2 MI.TO LR 09081 20G13, Bucks, PA

Built 1967 Load: 25.4 t ADT: 27,406

NEW GALENA ROAD

Good

Over: WALTERS RUN;READING CK.

WEST OF CHALFONT 27E02, Bucks, PA

Built 1985 Load: 25.4 t ADT: 3,542

SR 2002

Good

Over: BIG FISHING CREEK

2 MILE SOUTH LAMAR, Clinton, PA

Built 1977 Load: 25.4 t ADT: 633

SR 0093

Good

Over: N. BR. SUSQUEHANNA RIVER

BERWICK-NESCOPECK RVER BR, Columbia, PA

Built 1982 Load: 25.4 t ADT: 9,955

T-829 BR # BN4

Good

Over: EAST BR. RAVEN CREEK

2 MI SE OF BENTON BORO, Columbia, PA

Built 1976 Load: 25.4 t ADT: 75

SR 8001 RP E.

Good

Over: FRONT ST./NB.

SUSQUEHANNA TWP, Dauphin, PA

Built 1972 Load: 25.4 t ADT: 1,904

MID-COUNTY EXWY.NB

Good

Over: BRYN MAWR AVENUE

RADNOR TOWNSHIP 25H02, Delaware, PA

Built 1967 Load: 25.4 t ADT: 46,663

MID-COUNTY EXWY.SB

Good

Over: BRYN MAWR AVENUE

RADNOR TOWNSHIP 3477D09, Delaware, PA

Built 1967 Load: 25.4 t ADT: 43,234

SR 2005

Good

Over: LITTLE SANDY CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 1996 Load: 25.4 t ADT: 119

SR 2016

Good

Over: OLD WOMANS RUN

1.5 MI.N.OF ROCKHILL, Huntingdon, PA

Built 1967 Load: 25.4 t ADT: 599

T-489 DONAHUE RD

Good

Over: SOUTH BRANCH PLUM CREEK

BTW T403 &SR4006, Indiana, PA

Built 1984 Load: 25.4 t ADT: 100

FLORY MILL ROAD

Good

Over: LITTLE CONESTOGA CREEK

250 FT E OF SR 0741, Lancaster, PA

Built 1968 Load: 25.4 t ADT: 3,100

SR 0376 WB

Good

Over: SR 4004 PULASKI RD

1/2 MI. NORTH OF SR 0422, Lawrence, PA

Built 1975 Load: 25.4 t ADT: 7,259

SR 44 @ ALLENWOOD

Good

Over: W.B. SUSQUEHANNA RIVER

ALLENWOOD RIVER BRIDGE, Northumberland, PA

Built 1990 Load: 25.4 t ADT: 3,688

SR 61

Good

Over: SUSQUEHANNA RIVER

SUNBURY RIVER BRIDGE, Northumberland, PA

Built 1986 Load: 25.4 t ADT: 25,722

I-180 EBL

Good

Over: I-180 OVER TWP.RD.T-655

3.5 MILES SOUTH OF MUNCY, Northumberland, PA

Built 1970 Load: 25.4 t ADT: 8,024

NEW VALLEY RD

Good

Over: FISHING CREEK

1 W MARYSVILLE/FISHING CK, Perry, PA

Built 1976 Load: 25.4 t ADT: 350

SR 154

Good

Over: OVER MILL CREEK

1 MI NORTH OF LAPORTE, Sullivan, PA

Built 1982 Load: 25.4 t ADT: 298

UNION TWP T-323

Good

Over: LYCOMING CREEK

1.9 MI NE ROARING BRANCH, Tioga, PA

Built 1988 Load: 25.4 t ADT: 54

BEATTY SPUR ROAD

Good

Over: FOUR MILE RUN

400 N OF BEATTY CNTY RD, Westmoreland, PA

Built 1978 Load: 25.4 t ADT: 2,000

EUCLID AVENUE

Good

Over: JACKS RUN

BTW S URANIA & S MAIN, Westmoreland, PA

Built 1989 Load: 25.4 t ADT: 1,000

TR 6 WB CASEY HWY

Good

Over: RAMP LSE & RAILROAD

ROARING BR TP .2 M E I-81, Lackawanna, PA

Built 1998 Load: 25.4 t ADT: 12,967

US 30; SR 0030 EB

Good

Over: AMTRAK

GREENFIELD STATION, Lancaster, PA

Built 2002 Load: 25.4 t ADT: 34,051

SR 99-I 99

Good

Over: SELLERS LANE/WADDLE CR

5 MI W STATE COLLEGE, Centre, PA

Built 2005 Load: 25.4 t ADT: 11,016

SR 219-US 219

Good

Over: MILL ST - B&P RAILROAD

CITY OF BRADFORD, McKean, PA

Built 2006 Load: 25.4 t ADT: 7,793

US 222 NB

Good

Over: PA 100

UPPER MACUNGIE, Lehigh, PA

Built 2006 Load: 25.4 t ADT: 20,363

PA TPK (I-76)

Good

Over: Conodoguinet Creek

One Mile E Newville MTC, Cumberland, PA

Built 2009 Load: 25.4 t ADT: 21,474

LINCOLN ROAD

Good

Over: TRIBUTARY TO CONOCOCHEAG

FRANKLIN CO BRIDGE #18, Franklin, PA

Built 1992 Load: 25.4 t ADT: 1,000

HOV

Good

Over: RAMPJ

McKnight Interchange, Allegheny, PA

Built 1986 Load: 25.6 t ADT: 639

T-783 NOLAN DR

Good

Over: TRIB TO BUCK RUN

0.2 MI N OF SR4013, Mifflin, PA

Built 2011 Load: 25.9 t ADT: 50

RT 0028 NB

Good

Over: BURTNER ROAD (SR1032)

@ INT W/ SR 1032, Allegheny, PA

Built 1972 Load: 26.3 t ADT: 15,521

SR0028 SB

Good

Over: T-414 CHURCH RD

MCHADDON NO.1 SB, Armstrong, PA

Built 1968 Load: 26.3 t ADT: 6,844

PA 56

Good

Over: SLOANS HOLLOW RUN

0.5 MILES W. OF CESSNA, Bedford, PA

Built 1930 Load: 26.3 t ADT: 6,888

PA 164

Good

Over: FRANKSTWN BR JUNIATA

EAST FREEDOM, Blair, PA

Built 1987 Load: 26.3 t ADT: 18,080

PA 764

Good

Over: MILL RUN

ALTOONA 6TH.AVE 31ST.ST., Blair, PA

Built 1909 Load: 26.3 t ADT: 13,496

SR 4021

Good

Over: TIPTON RUN

TIPTON, Blair, PA

Built 1964 Load: 26.3 t ADT: 695

SR 0220

Good

Over: SR 2036 RAMP

.5 MI.N.OF TOWANDA BORO, Bradford, PA

Built 1974 Load: 26.3 t ADT: 3,482

SR 1021

Good

Over: BEAVER DAM RUN

2.5 M.N. OF ST. AUGUSTINE, Cambria, PA

Built 1961 Load: 26.3 t ADT: 1,759

ON TSR 301

Good

Over: DRIFTWOOD BR. SINNEMAHON

STERLING RUN, Cameron, PA

Built 1991 Load: 26.3 t ADT: 368

Showing 12,601-12,650 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.