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

Old York Road

Fair

Over: Roosevelt Blv Ext (US-1)

S of Cayuga Street 17J13, Philadelphia, PA

Built 1961 Load: 60.8 t ADT: 17,000

NJ90 i95 RMP

Fair

Over: RICHMOND AVENUE

RICHMOND ST OVRPS 29J04, Philadelphia, PA

Built 1975 Load: 60.8 t ADT: 15,828

SR 0281

Fair

Over: YOUGHIOGHENY RIVER

CONFLUENCE BRIDGE, Fayette, PA

Built 1998 Load: 60.8 t ADT: 1,450

SR 3016 COOVERS CR

Fair

Over: OVER MEAD RUN

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2001 Load: 60.8 t ADT: 347

SR 99-I 99

Fair

Over: BLUE SPRINGS HOLLOW / RD

2 MI SW PORT MATILDA, Centre, PA

Built 2004 Load: 60.8 t ADT: 6,583

T-407 PANCAKE RD

Fair

Over: NORTH FORK BEECH CREEK

0.3 MI NE OF WALNUT RD, Centre, PA

Built 2006 Load: 60.8 t ADT: 50

SR 0065 NB

Fair

Over: ALLEGHENY AVE RP.B

N.B. OVER ALLEGHENY AVE., Allegheny, PA

Built 1968 Load: 61.7 t ADT: 19,740

IVORY AV

Fair

Over: I279 RAMP J & TRUCK US19

IV01 IVORY AVENUE NO. 1, Allegheny, PA

Built 1986 Load: 61.7 t ADT: 8,600

RAMP Q

Fair

Over: RAMPS A&B (F&G)

Fort Pitt Bridge, Allegheny, PA

Built 1959 Load: 61.7 t ADT: 2,583

SR0422 EB

Fair

Over: SR8006 NB&SB

RTE 28 RAMPS EB, Armstrong, PA

Built 1970 Load: 61.7 t ADT: 9,123

ELKHORN RD

Fair

Over: ELKHORN RUN

004015 BAKERS LANDING BRG, Beaver, PA

Built 1989 Load: 61.7 t ADT: 100

SR 4031

Fair

Over: PAVIA RUN

154 FT. N. OF PA 869, Bedford, PA

Built 1938 Load: 61.7 t ADT: 204

PA 183 (LR 310)

Fair

Over: LICKING CREEK

3.3 MI S OF BERNVILLE, Berks, PA

Built 1978 Load: 61.7 t ADT: 18,921

BUTTONWOOD STREET

Fair

Over: SCH.R. 422 NSRC RIV.RD.

BUTTONWOOD ST. - READING, Berks, PA

Built 1932 Load: 61.7 t ADT: 14,674

GEIGEL HILL ROAD

Fair

Over: SWAMP CREEK / 2585-J10

ERWINNA COVERED BR.11J03, Bucks, PA

Built 1852 Load: 61.7 t ADT: 894

IVYLAND ROAD

Fair

Over: BRANCH LITTLE NESHAMINY

WARMINSTER TWP 34J04, Bucks, PA

Built 1984 Load: 61.7 t ADT: 750

SR0008 SB

Fair

Over: B&LE RR & THORN CREEK

MCBRIDE SB, Butler, PA

Built 1957 Load: 61.7 t ADT: 8,105

SR0108

Fair

Over: SR0079 NB&SB

WORTH TWP-MOORES CORNERS, Butler, PA

Built 1965 Load: 61.7 t ADT: 6,316

T-381 HINES ROAD

Fair

Over: KEIFER RUN

0.6 MI W OF INT W/SR 4008, Butler, PA

Built 2002 Load: 61.7 t ADT: 100

PA 53

Fair

Over: N.BR.L.CONEMAUGH RIVER

0.2 MILE SOUTH OF TR 160, Cambria, PA

Built 1992 Load: 61.7 t ADT: 4,076

PA 271

Fair

Over: S.BR.BLACKLICK CREEK

1.5 MILE NORTH OF TR 22, Cambria, PA

Built 1958 Load: 61.7 t ADT: 5,266

SR 1002

Fair

Over: MARSH CREEK

ROMOLA, Centre, PA

Built 1985 Load: 61.7 t ADT: 299

T-478

Fair

Over: CHATHAM RUN

WITHIN WOOLRICH, Clinton, PA

Built 1920 Load: 61.7 t ADT: 50

SR 1014 JOHNSTOWN

Fair

Over: OVER MOHAWK RUN

ROCKDALE TOWNSHIP, Crawford, PA

Built 1996 Load: 61.7 t ADT: 350

BEATTY ROAD

Fair

Over: CRUM CREEK

2MI.WEST PA 320 34F04, Delaware, PA

Built 1973 Load: 61.7 t ADT: 3,365

SR 2008

Fair

Over: CSX; WESTERN MARYLAND RR

PEN MAR, Franklin, PA

Built 1984 Load: 61.7 t ADT: 1,743

KEEFER ROAD

Fair

Over: CONODOGUINET CREEK

0.2 MI SE OF T-552, Franklin, PA

Built 1930 Load: 61.7 t ADT: 30

PA 643

Fair

Over: LITTLE TONOLOWAY CREEK

2.5 MILE EAST OF I-70, Fulton, PA

Built 1940 Load: 61.7 t ADT: 243

T366 OLD ROUTE 126

Fair

Over: MCKEES RUN

1.75 MI E OF AMARANTH, Fulton, PA

Built 1959 Load: 61.7 t ADT: 360

SR 2003

Fair

Over: DUNKARD CREEK

PERRY TOWNSHIP, Greene, PA

Built 1954 Load: 61.7 t ADT: 643

PA 35

Fair

Over: TROUGH SP BR TUSCARORA

RICHVALE, Huntingdon, PA

Built 1932 Load: 61.7 t ADT: 767

6TH ST & GRANT ST

Fair

Over: MARSH RUN

INT OF S 6TH & GRANT ST, Indiana, PA

Built 1961 Load: 61.7 t ADT: 780

SR 2008; (TWP RD)

Fair

Over: COOPERS RUN

1 MI.E. OF UNION COLERAIN, Lancaster, PA

Built 1952 Load: 61.7 t ADT: 419

SR 2009

Fair

Over: VALLEY RUN

1 MI SOUTH CHRISTIANA, Lancaster, PA

Built 1966 Load: 61.7 t ADT: 1,333

WURTEMBURG RD

Fair

Over: BR. BIG RUN

1/4 MI. SOUTH OF SR 2008, Lawrence, PA

Built 1986 Load: 61.7 t ADT: 2,206

S MAIN ST(SR 2008)

Fair

Over: SOLOMON CREEK

1/4 MI SW OF SR 2005, Luzerne, PA

Built 2000 Load: 61.7 t ADT: 8,973

S.R. 0180 WBL

Fair

Over: LR 289 SPURC(BASIN ST)

OVER BASIN STREET, Lycoming, PA

Built 1978 Load: 61.7 t ADT: 12,251

S.R. 220

Fair

Over: OVER MUNCY CREEK

N. BORDER OF HUGHESVILLE, Lycoming, PA

Built 1974 Load: 61.7 t ADT: 6,843

SR 1002

Fair

Over: HONEY CREEK

LOCKE MILLS, Mifflin, PA

Built 1973 Load: 61.7 t ADT: 950

MID-COUNTY EXWY.SB

Fair

Over: CHEMICAL ROAD / 3368-D4

SW.OF TPK.EXIT 25 3368D04, Montgomery, PA

Built 1990 Load: 61.7 t ADT: 46,665

JOSHUA ROAD

Fair

Over: NORFOLK SOUTHERN

S.STENTON AVENUE 30D10, Montgomery, PA

Built 1904 Load: 61.7 t ADT: 6,445

EGYPT ROAD

Fair

Over: PERKIOMEN CREEK

OAKS 27E5/3253J9, Montgomery, PA

Built 1982 Load: 61.7 t ADT: 20,809

RAMP G

Fair

Over: RAMP B & RAMP C

CITY LINE INTERCH 3479G09, Montgomery, PA

Built 1953 Load: 61.7 t ADT: 15,096

PA TPK (PA-66)

Fair

Over: T-699

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 61.7 t ADT: 3,671

RAMP C OFF

Fair

Over: OPEN GROUND

SCHUYLKILL/I-676 3590B07, Philadelphia, PA

Built 1955 Load: 61.7 t ADT: 6,545

SR 2011

Fair

Over: RAILS TO TRAILS

1 MI. SE OF DEAL(LOBSTOR), Somerset, PA

Built 2005 Load: 61.7 t ADT: 502

T-723 (MILL ROAD)

Fair

Over: RHINEY CREEK

3 MILES WEST OF BROOKDALE, Susquehanna, PA

Built 2008 Load: 61.7 t ADT: 50

T-357 SAWYER RD

Fair

Over: YELLOW CREEK

0.1 MI FROM INT W/T-900, Butler, PA

Built 2010 Load: 61.7 t ADT: 200

LIBERTY TWP T-328

Fair

Over: Blacks Creek

1.8 mi N.W. of Liberty Bo, Tioga, PA

Built 2015 Load: 61.9 t ADT: 20

BRIDGE 2810 T-376

Fair

Over: OVER TURKEY RUN

CAMPGROUND SHENANGO TWP, Mercer, PA

Built 1966 Load: 62.2 t ADT: 62

Showing 11,651-11,700 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.