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 0119 NB

Fair

Over: SR 1002

1 Mi S SR 1004 Inter., Indiana, PA

Built 2014 Load: 40.2 t ADT: 3,911

SR 3018

Fair

Over: PAXTON CREEK

HARRISBURG, Dauphin, PA

Built 2018 Load: 40.2 t ADT: 7,810

SR 2082 (LR 244)

Fair

Over: HAY CREEK

SCARLETS MILL, Berks, PA

Built 1960 Load: 40.5 t ADT: 1,245

TR-808 (CO.BR.#48)

Fair

Over: LICK CREEK

4 MILE EAST OF OVERTON, Bradford, PA

Built 1975 Load: 40.5 t ADT: 263

SR 0106 TR 106

Fair

Over: FALL BROOK

FELL TWP .8 M S SR 1009, Lackawanna, PA

Built 1959 Load: 40.5 t ADT: 2,937

OLD MILL RD

Fair

Over: CONOWINGO CREEK

2000 FT SE OF T-351, Lancaster, PA

Built 1972 Load: 40.5 t ADT: 225

I-81 NB; SR 0081

Fair

Over: BORDNERSVILLE RD. T-446

.5 MI SW OF LICKDALE, Lebanon, PA

Built 1967 Load: 40.5 t ADT: 11,354

SR 1031 GALILEE RD

Fair

Over: BEAVER DAM CREEK

DAMASCUS TWP 1.3M N TR371, Wayne, PA

Built 1940 Load: 40.5 t ADT: 314

US 209

Fair

Over: Leaps Bog

US 209 realignment, Monroe, PA

Built 2012 Load: 40.5 t ADT: 14,163

DRAGER RD.

Fair

Over: LITTLE CHIQUES CREEK

600 FT NORTH OF SR 23, Lancaster, PA

Built 1973 Load: 40.5 t ADT: 403

PA TPK (I-76)

Fair

Over: Trib of Bush Creek

WEST OF WARRENDALE, Allegheny, PA

Built 2021 Load: 40.5 t ADT: 27,341

US 15 NB; SR 0015

Fair

Over: CSX

2 MI. N. OF GETTYSBURG, Adams, PA

Built 1990 Load: 40.8 t ADT: 8,630

RT 0008 NB SB

Fair

Over: SR 4068-RED BELT

RICHLAND OVER LR 02273, Allegheny, PA

Built 1984 Load: 40.8 t ADT: 26,056

SR 28 NB

Fair

Over: SAXONBURG RD

1 MI S OF FREEPORT INTCH, Allegheny, PA

Built 1972 Load: 40.8 t ADT: 15,202

SR 0048 NB SB

Fair

Over: BRANCH JACKS RUN

@ INTERSECTION W/ SR 2035, Allegheny, PA

Built 1929 Load: 40.8 t ADT: 13,438

RAMP D

Fair

Over: POINT ST PARK MON RIVER

Fort Pitt Bridge, Allegheny, PA

Built 1958 Load: 40.8 t ADT: 18,158

PENN LINCOLN PKWY

Fair

Over: BRADY STREET

BRADY ST. INTERCHANGE, Allegheny, PA

Built 1956 Load: 40.8 t ADT: 40,000

PARKWAY EAST HW

Fair

Over: OLD WILLIAM PENN HIGHWAY

OVER OLD WM.PENN HIGHWAY, Allegheny, PA

Built 1962 Load: 40.8 t ADT: 52,457

GLENFIELD VIAD BR

Fair

Over: NSRR SR 65 E. BEAV. ST

1/2 MI.EAST OF SR 0079, Allegheny, PA

Built 1988 Load: 40.8 t ADT: 551

MEINERT RD

Fair

Over: PINE CREEK

108005 OVER PINE CREEK, Allegheny, PA

Built 1980 Load: 40.8 t ADT: 1,000

PANGBURN HOLLOW RD

Fair

Over: PERRY MILL RUN

PG08 PANGBURN HOLLOW #8, Allegheny, PA

Built 1979 Load: 40.8 t ADT: 582

BROWN RD

Fair

Over: PINE CREEK NORTH BRANCH

PN02 PINE CREEK N. BR.#2, Allegheny, PA

Built 1921 Load: 40.8 t ADT: 59

BECKS RUN RD

Fair

Over: BECKS RUN

BC03 BECKS RUN NO. 3, Allegheny, PA

Built 1990 Load: 40.8 t ADT: 12,757

NORTH AV

Fair

Over: GIRTYS RUN

445001 AT BABCOCK BLVD, Allegheny, PA

Built 1931 Load: 40.8 t ADT: 2,500

SAUNDERS STATN RD

Fair

Over: TURTLE CREEK

TL19 TURTLE CREEK # 19, Allegheny, PA

Built 1986 Load: 40.8 t ADT: 2,378

RAMP U

Fair

Over: RAMP E AND BRADY ST.

Birmingham Bridge, Allegheny, PA

Built 1954 Load: 40.8 t ADT: 8,200

SR0028 NB&SB

Fair

Over: ABANDONED RR

BUFFALO CREEK, Armstrong, PA

Built 1969 Load: 40.8 t ADT: 13,132

SR0156

Fair

Over: LONG RUN

NORTH OF AVONMORE, Armstrong, PA

Built 1941 Load: 40.8 t ADT: 638

SR0422 EB&WB

Fair

Over: SR4035; BUFFALO CR

WORTHINGTON NO.1, Armstrong, PA

Built 1960 Load: 40.8 t ADT: 12,222

SR4007

Fair

Over: PATTERSON CREEK

FROGTOWN NO.2, Armstrong, PA

Built 1933 Load: 40.8 t ADT: 131

PENNSYLVANIA AVE

Fair

Over: SR 4016 SHARON RD.

1 MI. NORTH OF SR 0068, Beaver, PA

Built 1957 Load: 40.8 t ADT: 8,775

US 30

Fair

Over: PRIVATE DR. (FORMER RR)

1.1 MILE WEST OF TR 26, Bedford, PA

Built 1980 Load: 40.8 t ADT: 8,536

PA 36

Fair

Over: YELLOW CREEK

88 FEET NORTH OF TR 866, Bedford, PA

Built 1947 Load: 40.8 t ADT: 3,989

US 220

Fair

Over: EVITTS CREEK

1.4 MILE NORTH OF SR 3011, Bedford, PA

Built 1965 Load: 40.8 t ADT: 3,838

US 220 (NBL)

Fair

Over: I-70/I-76 PA TURNPIKE

OVER PA TURNPIKE, Bedford, PA

Built 1971 Load: 40.8 t ADT: 6,903

US 220 (SBL)

Fair

Over: I-70/I-76 PA TURNPIKE

OVER PA TURNPIKE, Bedford, PA

Built 1971 Load: 40.8 t ADT: 7,061

SR 1008

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

2.5 MI.SE.OF TATESVILLE, Bedford, PA

Built 1992 Load: 40.8 t ADT: 310

T341 FIVE FORKS RD

Fair

Over: PINEY CREEK

2.5 MI.N.OF PINEYCREEK, Bedford, PA

Built 1942 Load: 40.8 t ADT: 3

SR 3009

Fair

Over: TR.EVITTS CREEK

.25 MI.E.OF CENTERVILLE, Bedford, PA

Built 1967 Load: 40.8 t ADT: 376

SR 4034

Fair

Over: I-99 / US 220

BLUE KNOB INTERCHANGE, Bedford, PA

Built 1979 Load: 40.8 t ADT: 1,731

T613 COLEBAUGH RD

Fair

Over: SCRUBGRASS CREEK

1.5 M.NE.OF WEYANT, Bedford, PA

Built 1987 Load: 40.8 t ADT: 36

T-498 HARRISON RD

Fair

Over: TRIB to ADAMS RUN

3 MI.NE.OF SCHELLSBURG, Bedford, PA

Built 1965 Load: 40.8 t ADT: 130

T350 SCHELLSBURG S

Fair

Over: WILLS CREEK

HYNDMAN, Bedford, PA

Built 1997 Load: 40.8 t ADT: 526

SR 78(LR 285)

Fair

Over: SR4044(MONUMENT RD)06128

3 MI.E.OF HAMBURG, Berks, PA

Built 1957 Load: 40.8 t ADT: 34,859

US 222 NB(LR 157)

Fair

Over: PA 737(LR 06134)

PA737 EXIT, Berks, PA

Built 1972 Load: 40.8 t ADT: 11,547

US 222 SB(LR 157)

Fair

Over: PA 737(LR 06134)

PA737 EXIT, Berks, PA

Built 1972 Load: 40.8 t ADT: 11,598

US 422(LR 793)

Fair

Over: NORFOLK/SOUTHERN RR

READING BYPASS, Berks, PA

Built 1963 Load: 40.8 t ADT: 44,281

SR 645(LR 06004)

Fair

Over: I-78(LR141)

PA 645 EXIT, Berks, PA

Built 1959 Load: 40.8 t ADT: 1,673

PA 724 (LR 147)

Fair

Over: MILL RACE

@ ALLEGHENY AQUEDUCT, Berks, PA

Built 1956 Load: 40.8 t ADT: 10,331

SR 3047(LR 06177)

Fair

Over: TRIB.TO PLUM CREEK

PRISON RD.@ COUNTY RD., Berks, PA

Built 1948 Load: 40.8 t ADT: 215

Showing 7,901-7,950 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.