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

SOUTH PATROL RD

Fair

Over: SMALL STREAM

SE OF BUILDING 1570, Franklin, PA

Built 1942 Load: 13.3 t ADT: 20

FLESHMAN MILL RD

Fair

Over: CONEWAGO CREEK

.7NW N.OXFRD CNWG CR.BRDR, Adams, PA

Built 1958 Load: 13.6 t ADT: 200

PRIVATE ACCESS RD

Fair

Over: FLAUGHERTY RUN

FU07 OFF FLAUGHERTY RUN R, Allegheny, PA

Built 1934 Load: 13.6 t ADT: 40

SR 376 EB WB

Fair

Over: SR 0018 FRANKFORT RD

INTERSECTION W SR 0018, Beaver, PA

Built 1970 Load: 13.6 t ADT: 27,520

MIDLAND BEAVER RD

Fair

Over: SR 0376

SR 68 OVER I-376, Beaver, PA

Built 1967 Load: 13.6 t ADT: 9,766

US 30 EBL

Fair

Over: SR 4010

OVER SR 4010, Bedford, PA

Built 1970 Load: 13.6 t ADT: 7,564

T305 BENNETT ROAD

Fair

Over: FIFTEENMILE CREEK

1.75 MI.S.OF ARTEMAS, Bedford, PA

Built 1920 Load: 13.6 t ADT: 36

SR 222 NB(LR 157)

Fair

Over: T-798(COLLEGE BLVD.)

KUTZTOWN BOROUGH LINE, Berks, PA

Built 1972 Load: 13.6 t ADT: 11,547

SR 222 SB(LR 157)

Fair

Over: T-798(COLLEGE BLVD.)

KUTZTOWN BOROUGH LINE, Berks, PA

Built 1972 Load: 13.6 t ADT: 11,598

T-517 STATION ROAD

Fair

Over: TULPEHOCKEN CREEK

SOUTH OF SR 4010, Berks, PA

Built 1993 Load: 13.6 t ADT: 185

CROSS KEY ROAD

Fair

Over: MILL CREEK

5.5 MI SO. OF RT 22 & 183, Berks, PA

Built 1960 Load: 13.6 t ADT: 70

COLERIDGE AVENUE

Fair

Over: MILL RUN CREEK

COLERIDGE AVE. ALTOONA, Blair, PA

Built 1963 Load: 13.6 t ADT: 2,200

T-358 (CO.BR.#.12)

Fair

Over: TOWANDA CREEK

1.3 Mi. W of Franklindale, Bradford, PA

Built 1908 Load: 13.6 t ADT: 150

T-536 CALICO ROAD

Fair

Over: CHRISTY RUN

BTW T503 & T535, Butler, PA

Built 1939 Load: 13.6 t ADT: 100

T-561 Foster Road

Fair

Over: CLEARFIELD CREEK

VAN ORMER, Cambria, PA

Built 1975 Load: 13.6 t ADT: 500

T-885 JERUSELAM RD

Fair

Over: OVER STONE RUN

3.2 MI.NE. BEAVER CENTER, Crawford, PA

Built 1884 Load: 13.6 t ADT: 250

PA-39;Hershey Rd.

Fair

Over: Swatara Creek

0.5 Mi. N. of Hershey, Dauphin, PA

Built 1967 Load: 13.6 t ADT: 12,880

SR 3023

Fair

Over: SALTLICK RUN

MENALLEN TOWNSHIP, Fayette, PA

Built 1938 Load: 13.6 t ADT: 667

COBLE ROAD

Fair

Over: WILSON RUN

0.2 MI SOUTH OF SR 4010, Franklin, PA

Built 1971 Load: 13.6 t ADT: 300

SR3011

Fair

Over: MAHONING CREEK

HAMILTON NO.2, Jefferson, PA

Built 1960 Load: 13.6 t ADT: 110

SR 3007(LR.39098)

Fair

Over: SCHAEFER RUN

BREINIGSVILLE-BUTZ RD., Lehigh, PA

Built 1961 Load: 13.6 t ADT: 588

T-706

Fair

Over: BEAVER DAM RUN

1.7 MI S. OF BEAVER LAKE, Lycoming, PA

Built 1920 Load: 13.6 t ADT: 52

SR 18

Fair

Over: OVER NS R R/SIDING

PYMATUNING TOWNSHIP, Mercer, PA

Built 1971 Load: 13.6 t ADT: 8,302

SR 2009 CNTRTWN.RD

Fair

Over: OVER CENTERTOWN RUN

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1961 Load: 13.6 t ADT: 179

SR 2024

Fair

Over: S. BR. ROARING CREEK

VILLAGE OF BEAR GAP, Northumberland, PA

Built 1985 Load: 13.6 t ADT: 786

FAIRGROUND RD

Fair

Over: BIG BUFFALO CREEK

1.5 NW NEWPORT/B.BUFFALO, Perry, PA

Built 1900 Load: 13.6 t ADT: 25

UPPER BUCK RD

Fair

Over: SHERMAN CREEK

1.5 SW N GRMNTWN/SHERMAN, Perry, PA

Built 1930 Load: 13.6 t ADT: 50

SR 2003

Fair

Over: LITTLE BUSHKILL CREEK

LEHMAN TWP 1.3M N SR 2001, Pike, PA

Built 1961 Load: 13.6 t ADT: 537

T798 NUMBER 1 ROAD

Fair

Over: LAUREL RUN

.2 MI.N.OF CENTRAL CITY, Somerset, PA

Built 1917 Load: 13.6 t ADT: 70

T-431

Fair

Over: CHARLESTON CREEK

3.8 MI SE OF WELLSBORO, Tioga, PA

Built 1940 Load: 13.6 t ADT: 150

CENTER HIGHWAY

Fair

Over: TINKER RUN

AT MAIN ST INTERSECT, Westmoreland, PA

Built 1979 Load: 13.6 t ADT: 6,600

BUFFALO VALLEY RD

Fair

Over: BRANCH CODORUS CREEK

.2NE JEFSN/BR CODORUS CK, York, PA

Built 1950 Load: 13.6 t ADT: 300

GARVINE MILL RD.

Fair

Over: BALD EAGLE CREEK

1.1S BALD EAGLE/B.E.CR., York, PA

Built 1961 Load: 13.6 t ADT: 152

MUDDY CREEK RD.

Fair

Over: SOUTH BRANCH MUDDY CREEK

1 S HIGH ROCK/S.BR.MUDDY, York, PA

Built 1954 Load: 13.6 t ADT: 44

MONTGOMERY DRIVE

Fair

Over: CSX TRANSPORTATION

.25 MI W.COLUMBIA 3589-G3, Philadelphia, PA

Built 1930 Load: 13.6 t ADT: 36,229

T-454

Fair

Over: LOCUST CREEK

T454 BETWEEN T453 & T449, Cumberland, PA

Built 1989 Load: 13.6 t ADT: 100

MILL RD

Fair

Over: MEADOWBROOK RUN

S OF BRYN MAWR AVE, Delaware, PA

Built 1984 Load: 13.6 t ADT: 2,000

US 15 SB; SR 0015

Fair

Over: CSX

2 MI. N.E. GETTYSBURG, Adams, PA

Built 1963 Load: 14.5 t ADT: 8,489

STONE JUG ROAD

Fair

Over: OPOSSUM CREEK

2.5 MI.EBIGVLELERVILLE/OP, Adams, PA

Built 1983 Load: 14.5 t ADT: 300

BOYLE ROAD

Fair

Over: FLAT RUN

4.5 MI.SE OF FAIRFIELD, Adams, PA

Built 1941 Load: 14.5 t ADT: 200

62nd Street Bridge

Fair

Over: N&S RR S.MAIN ST. RIVER

62nd Street Bridge, Allegheny, PA

Built 1960 Load: 14.5 t ADT: 12,835

AMBRIDGE-ALIQ BR

Fair

Over: OHIO RIVER 2 RR

AMBRIDGE-ALIQUIPPA SP 2-9, Beaver, PA

Built 1927 Load: 14.5 t ADT: 22,500

T578 Fish Hatchery

Fair

Over: DUNNING CREEK

3 MI.W.OF OSTERBURG, Bedford, PA

Built 1883 Load: 14.5 t ADT: 100

T-655 Langdon Dr

Fair

Over: YELLOW CREEK

.5 MI.NW.HOPEWELL, Bedford, PA

Built 1889 Load: 14.5 t ADT: 20

T352 Butler Hlw Rd

Fair

Over: SOUTH DRY RUN

2 MI.W.OF EAST FREEDOM, Blair, PA

Built 1957 Load: 14.5 t ADT: 253

T378 LWR PINEY CRK

Fair

Over: PINEY CREEK

1.5 MI.N.OF ROYER, Blair, PA

Built 1961 Load: 14.5 t ADT: 205

UHLERSTOWN HILL RD

Fair

Over: PENN CANAL

UHLERTOWN COVERED 2585-J6, Bucks, PA

Built 1856 Load: 14.5 t ADT: 50

SR0079 NB

Fair

Over: SR8005 (RAMP E)

ROCK LAKE NB, Butler, PA

Built 1968 Load: 14.5 t ADT: 14,319

SR1004

Fair

Over: SOUTH BRANCH BEAR CREEK

BRUIN NO.5, Butler, PA

Built 1932 Load: 14.5 t ADT: 207

PA 53

Fair

Over: LITTLE CONEMAUGH RIVER

1.3 MILE NORTH OF TR 219, Cambria, PA

Built 1965 Load: 14.5 t ADT: 4,076

Showing 301-350 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.