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 1030 (LR 06095)

Fair

Over: W.BRANCH PERKIOMEN CREEK

FORGEDALE ROAD BARTO, Berks, PA

Built 1927 Load: 45.4 t ADT: 437

SR 1047 (LR 06014)

Fair

Over: TRIB.W.BR.PERKIOMEN CREE

DALE RD. & CROW HILL RD., Berks, PA

Built 1920 Load: 45.4 t ADT: 758

SR 3004(LR 06029)

Fair

Over: TULPEHOCKEN CREEK

CHARMING FORGE, Berks, PA

Built 1925 Load: 45.4 t ADT: 268

SR 3009 (LR 660)

Fair

Over: WYOMISSING CREEK

MOHNTON BORO, Berks, PA

Built 1966 Load: 45.4 t ADT: 1,359

MECKVILLE RD.

Fair

Over: SR 78(LR141)

MECKVILLE RD. OVER I-78, Berks, PA

Built 1958 Load: 45.4 t ADT: 218

LR 06091 SR 2001

Fair

Over: PA TPK (I-76)

WEST OF MORGANTOWN, Berks, PA

Built 1950 Load: 45.4 t ADT: 496

STITZER RD

Fair

Over: FURNACE CREEK

WEST OF MILL ROAD, Berks, PA

Built 1940 Load: 45.4 t ADT: 100

T-910 DRY HOLLOW R

Fair

Over: LITTLE NORTHKILL CREEK

PAULUS BRIDGE, Berks, PA

Built 1980 Load: 45.4 t ADT: 380

US 22

Fair

Over: BEAVERDAM BR JUNIATA RIV

HOLLIDAYSBURG, Blair, PA

Built 1951 Load: 45.4 t ADT: 9,342

PA 36/ PA 164

Fair

Over: EVERETT RAILROAD

VILLAGE OF MCKEE, Blair, PA

Built 1951 Load: 45.4 t ADT: 17,274

SR 2024

Fair

Over: I-99 / US 220

1 MI.S.OF SPROUL, Blair, PA

Built 1989 Load: 45.4 t ADT: 1,952

SR 4027/BUS US 220

Fair

Over: BALD EAGLE CREEK

1.9 MILE SOUTH OF TR 350, Blair, PA

Built 1993 Load: 45.4 t ADT: 3,354

T342 Rebecca Furn

Fair

Over: CLOVER CREEK

1 MI.NE.OF FREDERICKSBURG, Blair, PA

Built 1988 Load: 45.4 t ADT: 44

SR 0367

Fair

Over: TUSCARORA CREEK

.2 MI SOUTH OF SILVARA, Bradford, PA

Built 1995 Load: 45.4 t ADT: 467

SR 1055

Fair

Over: PARKS CREEK

3.5 MI. N. OF ROME BORO, Bradford, PA

Built 1950 Load: 45.4 t ADT: 399

INTERSTATE 95 (NB)

Fair

Over: BRISTOL PIKE

1MI.N.EDDINGTON 42B12, Bucks, PA

Built 1964 Load: 45.4 t ADT: 41,690

BEDMINSTER ROAD

Fair

Over: TOHICKON CREEK

SOUTH OF OTTSVILLE 16G01, Bucks, PA

Built 1931 Load: 45.4 t ADT: 2,202

YORK ROAD

Fair

Over: BRANCH LAHASKA CREEK

AT HOLICONG POLICE 24C07, Bucks, PA

Built 1992 Load: 45.4 t ADT: 14,681

NEW RODGERS ROAD

Fair

Over: MILL CREEK

.1MI.SOUTH LR-281 37F13, Bucks, PA

Built 1949 Load: 45.4 t ADT: 15,143

EASTON ROAD

Fair

Over: CABIN RUN CREEK

1MI.S.PIPERSVILLE 16H07, Bucks, PA

Built 1950 Load: 45.4 t ADT: 11,359

COUNTY LINE ROAD

Fair

Over: BR SOUTHHAMPTON CREEK

.2MI.W.DAVISVILLE 34J11, Bucks, PA

Built 1966 Load: 45.4 t ADT: 23,897

ROSEDALE ROAD

Fair

Over: BRANCH OF UNAMI CREEK

STEINSBURG; MILFRD.06J09, Bucks, PA

Built 1933 Load: 45.4 t ADT: 772

BROWNSBURG RD.EAST

Fair

Over: JERICHO CREEK

1.5 MI SW OF SR 0032, Bucks, PA

Built 1920 Load: 45.4 t ADT: 100

EDISON ROAD

Fair

Over: BRANCH OF NESHAMINY CRK

1000 SW SR-611 3034-K5, Bucks, PA

Built 1921 Load: 45.4 t ADT: 400

HILLCREST ROAD

Fair

Over: PLEASANT SPRING CREEK

1500 NW Orch Rd 2920-D4, Bucks, PA

Built 1968 Load: 45.4 t ADT: 500

T-538 SQUAW VALLEY

Fair

Over: LOWREY RUN

.25 mi SW of Grewick Rd, Butler, PA

Built 1921 Load: 45.4 t ADT: 100

T-426 COALTOWN RD

Fair

Over: S BR SLIPPERY ROCK CR

0.5 MI S. SR 4010, Butler, PA

Built 1923 Load: 45.4 t ADT: 100

T-418 BEAVER DAM

Fair

Over: MUDDY CREEK

0.5 miles NW of S.R. 4002, Butler, PA

Built 1940 Load: 45.4 t ADT: 100

T-557 OHARA ROAD

Fair

Over: THORN CREEK

190 FT NW OF SR 2007, Butler, PA

Built 1920 Load: 45.4 t ADT: 100

PA 53

Fair

Over: PATTYS RUN

0.2 MILE SOUTH OF TR 36, Cambria, PA

Built 1921 Load: 45.4 t ADT: 2,040

T-708 Amsbry Road

Fair

Over: CLEARFIELD CREEK

AMSBRY, Cambria, PA

Built 2000 Load: 45.4 t ADT: 500

T407 Spinner Road

Fair

Over: N.BR.LITTLE CONEMAUGH R.

2.5 MI.SW.OF MUNSTER, Cambria, PA

Built 1997 Load: 45.4 t ADT: 500

SR 120-PA 120

Fair

Over: WEST CREEK

TRUMAN, Cameron, PA

Built 1951 Load: 45.4 t ADT: 2,666

SR 3001

Fair

Over: DRIFTWOOD BR SINNEMAHO C

EMPORIUM, Cameron, PA

Built 1982 Load: 45.4 t ADT: 626

SR 4004

Fair

Over: DRIFTWOOD BRANCH

LOCKWOOD, Cameron, PA

Built 1963 Load: 45.4 t ADT: 310

SR 1001

Fair

Over: PA TPK (I-476)

6 MI SOUTH OF CHRISTMANS, Carbon, PA

Built 1956 Load: 45.4 t ADT: 368

SR 80-I 80

Fair

Over: FORESTRY RD;BLACK MOSH C

6 MI W EXIT 147, Centre, PA

Built 1966 Load: 45.4 t ADT: 7,584

SR 144-PA 144

Fair

Over: GAP RUN

PLEASANT GAP, Centre, PA

Built 1918 Load: 45.4 t ADT: 6,934

SR 3040

Fair

Over: MUD LICK RUN

4 MI NE PORT MATILDA, Centre, PA

Built 1930 Load: 45.4 t ADT: 2,220

ON TSR 862

Fair

Over: ELK CREEK

SMULLTON, Centre, PA

Built 1990 Load: 45.4 t ADT: 396

SR 4004

Fair

Over: WALLACE RUN

GUM STUMP, Centre, PA

Built 1938 Load: 45.4 t ADT: 430

T-513 OLD MT. ROAD

Fair

Over: PINE CREEK

155 FT SOUTH INT SR 2018, Centre, PA

Built 1994 Load: 45.4 t ADT: 50

W. CHESTER BYPASS

Fair

Over: HIGH STREET

SOUTH WEST CHESTER 41C1, Chester, PA

Built 1953 Load: 45.4 t ADT: 56,708

KINGS HIGHWAY

Fair

Over: US 30 BY PASS

NORTH COATESVILLE 29C1, Chester, PA

Built 1961 Load: 45.4 t ADT: 3,794

YELLOW SPRINGS RD.

Fair

Over: PINE CREEK

NEAR ROUTE 113 13K12, Chester, PA

Built 1987 Load: 45.4 t ADT: 578

CREEK ROAD

Fair

Over: TAYLORS RUN

NR. JEFFERIES BRG. 31E11, Chester, PA

Built 1914 Load: 45.4 t ADT: 1,496

LINCOLN HIGHWAY

Fair

Over: AMTRAK

EAST COATESVILLE 29C4, Chester, PA

Built 1994 Load: 45.4 t ADT: 15,868

WASHINGTON ROAD

Fair

Over: CULBERTSON RUN

WEST OF SR 282 19J5, Chester, PA

Built 1903 Load: 45.4 t ADT: 1,074

BAKER STATION ROAD

Fair

Over: E BR WHITE CLAY CREEK

LONDON GROVE TWP. 46A06, Chester, PA

Built 1986 Load: 45.4 t ADT: 1,157

WILSON MILL ROAD

Fair

Over: W BRANCH OF BIG ELK CRK.

.5 Mi S Balt Pk 3907-K3, Chester, PA

Built 1984 Load: 45.4 t ADT: 297

Showing 9,351-9,400 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.