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 80-I 80

Good

Over: SR 220-US 220

EXIT 178 LOCK HAVEN INTER, Clinton, PA

Built 1968 Load: 45.4 t ADT: 8,204

COOKS RUN ROAD

Good

Over: COOKS RUN

5.3 MI NW OF SR 120, Clinton, PA

Built 2001 Load: 45.4 t ADT: 20

GOTTSHALL ROAD

Good

Over: GOTTSHALL RUN

700 FT SW OF SR 880, Clinton, PA

Built 2000 Load: 45.4 t ADT: 25

MILL ROAD

Good

Over: TRIB.TO ROARING CREEK

1.5 M. SE OFSLABTOWN, Columbia, PA

Built 1961 Load: 45.4 t ADT: 267

SR 4010

Good

Over: OVER HEMLOCK CREEK

6 MI N OF FERNVILLE, Columbia, PA

Built 1996 Load: 45.4 t ADT: 905

T413 COUNTY BR#44

Good

Over: CATAWISSA CREEK

1.3 MI SE OF MAINVILLE, Columbia, PA

Built 1997 Load: 45.4 t ADT: 50

SR 79 NB

Good

Over: OVER SR 1008 IRISH ROAD

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1969 Load: 45.4 t ADT: 7,485

MID-COUNTY EXWY.SB

Good

Over: DARBY CREEK

BLUE ROUTE 25K05, Delaware, PA

Built 1990 Load: 45.4 t ADT: 43,234

RAMP D(SB)TO RTE 1

Good

Over: RELOCATED MARPLE ROAD

MEDIA BYPASS INT. 34G02, Delaware, PA

Built 1990 Load: 45.4 t ADT: 8,840

PORCUPINE ROAD

Good

Over: DENTS RUN

AT DENTS RUN RD INTERSECT, Elk, PA

Built 2003 Load: 45.4 t ADT: 50

SR 1001 LK.PLSNT.R

Good

Over: OVER MILL CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 1986 Load: 45.4 t ADT: 2,227

SR 0119

Good

Over: CSXT Youghiogheny River

CITY OF CONNELLSVILLE, Fayette, PA

Built 1952 Load: 45.4 t ADT: 25,443

SR 1008

Good

Over: VIRGIN RUN

PERRY & FRANKLIN TWPS., Fayette, PA

Built 1981 Load: 45.4 t ADT: 174

KONICKI ROAD

Good

Over: JACOBS CREEK

EAST OF SR 3011, Fayette, PA

Built 2000 Load: 45.4 t ADT: 30

T356 BUCK HOLLW RD

Good

Over: ESTHER RUN

1.7 M.SE.BIG COVE TANNERY, Fulton, PA

Built 1996 Load: 45.4 t ADT: 56

SR2023

Good

Over: BUFF & PITT RR

SANDY LICK POINT, Jefferson, PA

Built 1958 Load: 45.4 t ADT: 902

T-369 PINE RUN RD

Good

Over: PINE RUN

0.2 MILES EAST OF SR 3004, Jefferson, PA

Built 1940 Load: 45.4 t ADT: 50

SR 2018

Good

Over: QUAKER RUN

3 MI S RICHFIELD, Juniata, PA

Built 1990 Load: 45.4 t ADT: 413

SR 2020 DRINKER ST

Good

Over: SR 0081 I-81 NB & SB

DUNMORE BORO OVER I-81, Lackawanna, PA

Built 1996 Load: 45.4 t ADT: 4,827

SR 8008 RAMP E

Good

Over: SR 4002

1000 EAST OF SR 0060, Lawrence, PA

Built 1975 Load: 45.4 t ADT: 2,067

PA 145/SUSQUEHANNA

Good

Over: TROUT CREEK & N.S. RR

SUSQUEHANNA ST. BRIDGE, Lehigh, PA

Built 1989 Load: 45.4 t ADT: 11,761

SR 0044

Good

Over: OVER BR. WHITE DEER HOLE

VILLAGE OF ELIMSPORT, Lycoming, PA

Built 1991 Load: 45.4 t ADT: 1,757

I 180

Good

Over: GLADE RUN

1 MI S OF MUNCY, Lycoming, PA

Built 1973 Load: 45.4 t ADT: 13,708

MIFFLIN TWP T683

Good

Over: SECOND FORK

4.1 M. N. OF SALLADASBURG, Lycoming, PA

Built 1990 Load: 45.4 t ADT: 50

T - 461

Good

Over: WHITE DEER HOLE CREEK

1.6 MI E. OF ELIMSPORT, Lycoming, PA

Built 1990 Load: 45.4 t ADT: 30

LITTLE BEAR ROAD

Good

Over: LITTLE BEAR CREEK

900 FT SE OF SR 87, Lycoming, PA

Built 1996 Load: 45.4 t ADT: 15

SR 80 EB

Good

Over: OVER WOLF CREEK

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 Load: 45.4 t ADT: 10,833

SR 322 LIBERTY ST.

Good

Over: OVER SHENANGO RIVER

JAMESTOWN BOROUGH, Mercer, PA

Built 1984 Load: 45.4 t ADT: 1,902

SR 965 JCKSN.CTR.R

Good

Over: OVER YELLOW CREEK

JACKSON TOWNSHIP, Mercer, PA

Built 1996 Load: 45.4 t ADT: 1,344

SR 3008 E.STATE ST

Good

Over: OVER SHENANGO RIVER TRIB

CITY OF HERMITAGE, Mercer, PA

Built 1996 Load: 45.4 t ADT: 10,858

BRIDGE 2010 T-539

Good

Over: OVER OTTER CREEK

E CORNELL RD COOLSPRINGS, Mercer, PA

Built 1985 Load: 45.4 t ADT: 632

BRIDGE 1905 T-584

Good

Over: OVER LACKAWANNOCK CREEK

N.BEND RD JEFFERSON TWP., Mercer, PA

Built 1965 Load: 45.4 t ADT: 94

SPECTACLE GAP ROAD

Good

Over: EAST LICKING CREEK

150 SE OF LICKING CRK DR, Mifflin, PA

Built 1998 Load: 45.4 t ADT: 40

POTTSTOWN EX (EB)

Good

Over: LEWIS ROAD

LIMERICK INT. 18K3/3140C6, Montgomery, PA

Built 1976 Load: 45.4 t ADT: 25,953

POTTSTOWN EX (WB)

Good

Over: LEWIS ROAD

LIMERICK INT. 19A3/3140C6, Montgomery, PA

Built 1976 Load: 45.4 t ADT: 25,179

KEIM STREET

Good

Over: SPROGELS RUN

L. POTTSGR. 3027B9, Montgomery, PA

Built 1966 Load: 45.4 t ADT: 4,629

SR 3003(LR 48001)

Good

Over: SAUCON CREEK

BINGEN ROAD, Northampton, PA

Built 1962 Load: 45.4 t ADT: 2,761

SR 0054

Good

Over: OVER WARRIOR RUN

0.1 MI N OF TURBOTVILLE, Northumberland, PA

Built 1992 Load: 45.4 t ADT: 5,352

I-80 EB

Good

Over: OVER SR 1019 & MUDDY RUN

2 MI NE OF MILTON, Northumberland, PA

Built 1962 Load: 45.4 t ADT: 13,224

FRIEDLINE RD

Good

Over: LICK RUN

SNDRTWN FRIEDLINE R, Northumberland, PA

Built 1994 Load: 45.4 t ADT: 225

SR 0006 TR 6

Good

Over: SAWKILL CREEK

MILFORD TWP .5 M S I-84, Pike, PA

Built 1957 Load: 45.4 t ADT: 8,822

SR 244-PA 244

Good

Over: WEST BR GENESEE RIVER

ELLISBURG, Potter, PA

Built 1991 Load: 45.4 t ADT: 217

SR 1011

Good

Over: GENESEE RIVER

WEST BINGHAM, Potter, PA

Built 1991 Load: 45.4 t ADT: 653

LIT MOORES RUN RD

Good

Over: SOUTH WOODS BRANCH

AT HEITH RD INTERSECT, Potter, PA

Built 1996 Load: 45.4 t ADT: 15

BAILEY RUN RD

Good

Over: BAILEY RUN

1.5 MI NW OF SR 872, Potter, PA

Built 2003 Load: 45.4 t ADT: 25

T-351 POTATO VALLE

Good

Over: N.BR.MAHANTANGO CR.

1 MI.SE OF MT.PLEASANT ML, Snyder, PA

Built 1991 Load: 45.4 t ADT: 75

SR 1018

Good

Over: BEAVERDAM RUN

4 MI.E.OF CENTRAL CITY, Somerset, PA

Built 1939 Load: 45.4 t ADT: 220

CHERRY TWP T-380

Good

Over: BIRCH CREEK

1.7 MI E OF MILDRED, Sullivan, PA

Built 1989 Load: 45.4 t ADT: 50

SR 0171 TR 171

Good

Over: TRIB SUSQUEHANNA RIVER

GREAT BND TP .2M N SR1027, Susquehanna, PA

Built 1991 Load: 45.4 t ADT: 2,047

SR 2046

Good

Over: BRANCH TUNKHANNOCK CREEK

GIBSON TWP .1 M E TR 92, Susquehanna, PA

Built 1996 Load: 45.4 t ADT: 726

Showing 17,901-17,950 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.