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

Grant Avenue

Fair

Over: Girtys Run

Int. Grant Ave E Ohio St, Allegheny, PA

Built 1914 Load: 41.7 t ADT: 4,500

RAMP B RD

Fair

Over: PRKWY&CAMPBELLS RUN RD.

S.B. RP.B O/ PRKY.& LOCAL, Allegheny, PA

Built 1973 Load: 41.7 t ADT: 13,038

RAMP G to FT. DUQ

Fair

Over: ALLEG.RIV. FT DUQ WARF

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 41.7 t ADT: 2,430

8065 RAMP F

Fair

Over: I-376 RAMP V & 2ND AVE.

Birmingham Bridge, Allegheny, PA

Built 1976 Load: 41.7 t ADT: 3,598

RAMP F

Fair

Over: RAMP D

Crosstown Blvd, Allegheny, PA

Built 1962 Load: 41.7 t ADT: 938

SR0066

Fair

Over: ELDER RUN

LOOKABOUGH NO.3, Armstrong, PA

Built 1952 Load: 41.7 t ADT: 2,715

SR0068

Fair

Over: SUGAR CREEK

BRADYS BEND NO.9, Armstrong, PA

Built 1919 Load: 41.7 t ADT: 2,748

SR0068

Fair

Over: SUGAR CREEK

BRADYS BEND NO.10, Armstrong, PA

Built 1923 Load: 41.7 t ADT: 2,748

SR0085

Fair

Over: COWANSHANNOCK CREEK

EAST OF RURAL VALLEY, Armstrong, PA

Built 1962 Load: 41.7 t ADT: 2,353

SR3128

Fair

Over: DOCK HOLLOW RUN

DOCK HOLLOW RUN NO.2, Armstrong, PA

Built 1928 Load: 41.7 t ADT: 561

SR0422

Fair

Over: PLUM CREEK

KIMMEL SCHOOL, Armstrong, PA

Built 1958 Load: 41.7 t ADT: 9,643

SR2046

Fair

Over: TRIB TO RATTLING RUN

LAMBINGS, Armstrong, PA

Built 1967 Load: 41.7 t ADT: 311

T-784 DRY RIDGE RD

Fair

Over: PINE RUN

0.4 Mile N of Timblin Rd, Armstrong, PA

Built 1989 Load: 41.7 t ADT: 50

PENNSYLVANIA AV

Fair

Over: TR 4013

SR 51 OVER TR 4013, Beaver, PA

Built 1953 Load: 41.7 t ADT: 10,074

EASTVALE BRIDGE

Fair

Over: BEAVER R CSX RR N-S RR

EASTVALE BRIDGE, Beaver, PA

Built 1961 Load: 41.7 t ADT: 6,054

PARK RD

Fair

Over: BR.SOUTH BRANCH BRADY RU

300N.OF INTER W/SR 4012, Beaver, PA

Built 1920 Load: 41.7 t ADT: 1,068

WALNUT LN

Fair

Over: TWO MILE RUN

101008 AT GEORGETOWN, Beaver, PA

Built 1941 Load: 41.7 t ADT: 400

SR 4001

Fair

Over: BRANCH SHAWNEE CREEK

2.5 MI.W.OF SCHELLSBURG, Bedford, PA

Built 1939 Load: 41.7 t ADT: 227

SR 78(LR 285)

Fair

Over: TRIB.TO FURNACE CKEEK

1 MI.W.OF LENHARTSVILLE, Berks, PA

Built 1957 Load: 41.7 t ADT: 34,859

SR 2082(LR 244)

Fair

Over: HAY CREEK

BIRDSBORO BOROUGH, Berks, PA

Built 1989 Load: 41.7 t ADT: 1,245

SR 501(LR 423)

Fair

Over: LITTLE SWATARA CREEK

2 MI.N.LEBANON CO.LINE, Berks, PA

Built 1982 Load: 41.7 t ADT: 6,200

SR 737(LR 06134)

Fair

Over: STONY RUN

2 MI.N.OF KRUMSVILLE, Berks, PA

Built 1925 Load: 41.7 t ADT: 1,338

SR 1010(LR 06119)

Fair

Over: PERKIOMEN CREEK

SEISHOLTZVILLE ROAD, Berks, PA

Built 1960 Load: 41.7 t ADT: 2,565

SR 1021(LR 06203)

Fair

Over: MILL CREEK

EAGLE POINT, Berks, PA

Built 1984 Load: 41.7 t ADT: 3,455

SR 2036(LR 06101)

Fair

Over: MANATAWNY CREEK

PINE FORGE-MANATAWNY DR., Berks, PA

Built 1939 Load: 41.7 t ADT: 1,457

SR3055(SPRNG RIDGE

Fair

Over: US 222 (PARK RD)

SPRING RIDGE DR OVER 222, Berks, PA

Built 1997 Load: 41.7 t ADT: 12,908

OLD PHILY PIKE

Fair

Over: KISTLER CREEK

FETHEROLFSVILLE BRIDGE, Berks, PA

Built 1980 Load: 41.7 t ADT: 155

GRAVEL PIT ROAD

Fair

Over: SWATARA CREEK

N. OF REHRERSBURG, Berks, PA

Built 1930 Load: 41.7 t ADT: 184

I-99 / US 220 NBL

Fair

Over: PA 164 & SOUTH DRY RUN

EAST FREEDOM, Blair, PA

Built 1987 Load: 41.7 t ADT: 5,394

I-99 / US 220 SBL

Fair

Over: PA 164 & SOUTH DRY RUN

EAST FREEDOM, Blair, PA

Built 1987 Load: 41.7 t ADT: 5,455

I-99 / US 220 SBL

Fair

Over: SR 2012

1 MI.N.OF NEWRY, Blair, PA

Built 1984 Load: 41.7 t ADT: 7,809

SR 0220

Fair

Over: SR 3020

1 MI.W.OF TOWANDA BORO, Bradford, PA

Built 1974 Load: 41.7 t ADT: 3,482

SR220 (US 220)

Fair

Over: SUGAR CREEK

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

Built 1974 Load: 41.7 t ADT: 3,410

SR 1045

Fair

Over: HORN BROOK

1 MI.W.OF HORNBROOK, Bradford, PA

Built 1920 Load: 41.7 t ADT: 219

SR 4027

Fair

Over: OVER BUCKS CREEK

VILLAGE OF CHECKERVILLE, Bradford, PA

Built 1938 Load: 41.7 t ADT: 221

T624 (CO.BR.30)

Fair

Over: RUMMERFIELD CREEK

0.4 MI E OF RUMMERFIELD, Bradford, PA

Built 1884 Load: 41.7 t ADT: 50

LINCOLN HIGHWAY

Fair

Over: MILL CREEK

.3MI.TO LR 09006 37E12, Bucks, PA

Built 1969 Load: 41.7 t ADT: 20,242

JOHN FRIES HIGHWAY

Fair

Over: UNAMI CREEK

.5MI.FROM LR 924 2694G10, Bucks, PA

Built 1965 Load: 41.7 t ADT: 20,559

LONELY COTTAGE DR

Fair

Over: RAPP CREEK

1.5 Mi E SR 611 2584-F5, Bucks, PA

Built 1960 Load: 41.7 t ADT: 250

OLD YORK ROAD

Fair

Over: LITTLE NESHAMINY CREEK

.5MI.N HARTSVILLE 3147-F3, Bucks, PA

Built 1930 Load: 41.7 t ADT: 400

PA TPK (I-476)

Fair

Over: UNAMI CREEK

UNAMI CREEK BRIDGE, Bucks, PA

Built 1955 Load: 41.7 t ADT: 50,307

SR0079 NB

Fair

Over: T-370 STANFORD RD

PFEIFER NB, Butler, PA

Built 1963 Load: 41.7 t ADT: 12,413

US 22

Fair

Over: SR 8004

1.3 MILE EAST OF US 219, Cambria, PA

Built 1960 Load: 41.7 t ADT: 25,011

PA 56

Fair

Over: 403 271 3016 3055 8016 R

OVER TR 403 & TR 271, Cambria, PA

Built 1972 Load: 41.7 t ADT: 14,884

SR 3006

Fair

Over: US 219

2.25 MI.E.OF KRING, Cambria, PA

Built 1969 Load: 41.7 t ADT: 7,680

SR 120-PA 120

Fair

Over: SQUARE TIMBER RUN

1 MI N STERLING RUN, Cameron, PA

Built 1988 Load: 41.7 t ADT: 489

TONOLLI ENTR RD

Fair

Over: NESQUEHONING CREEK

1300 FEET NORTH RTE 54, Carbon, PA

Built 1973 Load: 41.7 t ADT: 10

PA TPK (I-476)

Fair

Over: FOX TRAIL RD

6 MI S OF POCONO INTERCH., Carbon, PA

Built 1956 Load: 41.7 t ADT: 22,198

SR 322-US 322

Fair

Over: SEDA-COG/NIT& BALD EAGLE

MARTHA FURNACE, Centre, PA

Built 1987 Load: 41.7 t ADT: 1,366

SR 3042

Fair

Over: SEDA-COG/NIT& BALD EAGLE

MARTHA FURNACE, Centre, PA

Built 1987 Load: 41.7 t ADT: 1,366

Showing 8,251-8,300 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.