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 26-PA 26

Fair

Over: SPRING CREEK

LEMONT, Centre, PA

Built 1940 Load: 14.5 t ADT: 16,060

SR 2012

Fair

Over: MCELHATTAN CREEK

YOUNGDALE, Clinton, PA

Built 1973 Load: 14.5 t ADT: 333

SR 77 STATE STREET

Fair

Over: OVER MUDDY CREEK TRIB

ATHENS TOWNSHIP, Crawford, PA

Built 1961 Load: 14.5 t ADT: 1,013

I-81; SR 0081

Fair

Over: SR 3009 NB FRONT ST

SUSQUEHANNA TWP., Dauphin, PA

Built 1972 Load: 14.5 t ADT: 57,261

COVERED BRIDGE RD

Fair

Over: SOUTH FORK TENMILE CREEK

EAST OF RUTAN, Greene, PA

Built 1885 Load: 14.5 t ADT: 25

SR 2003

Fair

Over: DOE RUN

1.5 MI N MEXICO, Juniata, PA

Built 1939 Load: 14.5 t ADT: 208

TR 347 W LACKA AVE

Fair

Over: LACKAWANNA RIVER

OLYPHANT - BLAKELY LINE, Lackawanna, PA

Built 1989 Load: 14.5 t ADT: 10,343

SR 2018

Fair

Over: SR 0380 I-380

COVINGTON TWP OVER I-380, Lackawanna, PA

Built 1969 Load: 14.5 t ADT: 897

PA 23; SR 0023

Fair

Over: Conestoga River

1 MI.W. of Churchtown, Lancaster, PA

Built 1973 Load: 14.5 t ADT: 6,484

T-330 VALLEY GLEN

Fair

Over: QUITTAPAHILLA CREEK

AT GLEN / PATTON RD INTER, Lebanon, PA

Built 1939 Load: 14.5 t ADT: 200

CAMPING ROAD

Fair

Over: LITTLE PINE CREEK

700 FT NE OF SR 4001, Lycoming, PA

Built 1975 Load: 14.5 t ADT: 100

SR 3018 WALNUT ST

Fair

Over: OVER NS RR / SHENANGO R.

SHARPSVILLE BOROUGH, Mercer, PA

Built 1986 Load: 14.5 t ADT: 5,858

SR 4002 (LR 45040)

Fair

Over: SR 80(LR1009)

OVER I-80, Monroe, PA

Built 1965 Load: 14.5 t ADT: 3,645

CONN SR1004&CR620S

Fair

Over: DELAWARE River

RIVERTON PA-BELVIDERE NJ, Northampton, PA

Built 1904 Load: 14.5 t ADT: 4,500

SR 3009

Fair

Over: Shermans Creek

NEAR CENTRE, Perry, PA

Built 1899 Load: 14.5 t ADT: 195

TWP. RTE. T-333

Fair

Over: SHERMAN CREEK

.4SW LNDISBRG SHERMAN CRK, Perry, PA

Built 1871 Load: 14.5 t ADT: 400

SR4022 CMP CRBY RD

Fair

Over: N BR WYALUSING CREEK

MIDLETWN TWP .1M E TR 858, Susquehanna, PA

Built 1964 Load: 14.5 t ADT: 54

T-318

Fair

Over: ELK RUN WEST

VILLAGE OF WATROUS, Tioga, PA

Built 1925 Load: 14.5 t ADT: 10

T-581 STARR ROAD

Fair

Over: OVER PINE RUN

RICHLAND TOWNSHIP, Venango, PA

Built 1990 Load: 14.5 t ADT: 50

SR 1006

Fair

Over: PETERS CREEK

FINLEYVILLE / UNION TWP, Washington, PA

Built 1984 Load: 14.5 t ADT: 14,872

MCCLAREN BRIDGE

Fair

Over: RACCOON CREEK

600 NORTH OF SR 4004, Washington, PA

Built 2000 Load: 14.5 t ADT: 40

T-433 HAMETOWN RD

Fair

Over: ROCK CREEK

1 MI NE GLEN ROCK, York, PA

Built 1970 Load: 14.5 t ADT: 200

BACK HOLLOW ROAD

Fair

Over: SHAEFFER RUN

3 SE N GRMNTWN/SHAEFFER R, Perry, PA

Built 2019 Load: 14.5 t ADT: 50

FOREST HILL DRIVE

Fair

Over: WILLOW RUN

300FT W OF WILLOW RUN RD, Montgomery, PA

Built 1985 Load: 14.5 t ADT: 100

WATERWORKS ROAD

Fair

Over: WILLOUGHBY RUN

IMMEDIATELY WEST OF RED R, Adams, PA

Built 1930 Load: 14.5 t ADT: 1

ACCESS ROAD

Fair

Over: SHY BEAVER CREEK

10 MI SW HUNTINGDON PA, Huntingdon, PA

Built 1938 Load: 15.2 t ADT: 250

SR 3003

Fair

Over: US 15; SR 0015

2 1/2 MI. N.E. GETTYSBURG, Adams, PA

Built 1963 Load: 15.4 t ADT: 1,118

B & F ROAD

Fair

Over: CONEWAGO CREEK

1.7 SE ARENDTSVIL/CONEWAG, Adams, PA

Built 1911 Load: 15.4 t ADT: 100

T-319 Silver Mills

Fair

Over: SIDELING HILL CREEK

.2 MI.N.OF SILVER MILLS, Bedford, PA

Built 1937 Load: 15.4 t ADT: 55

LESHER MILL RD

Fair

Over: LESHER RUN

SE OF SHARTLESVILLE, Berks, PA

Built 1968 Load: 15.4 t ADT: 125

SR 3022

Fair

Over: STONYCREEK RIVER

INCLINED PLANE BRIDGE, Cambria, PA

Built 1890 Load: 15.4 t ADT: 32

SR 2011

Fair

Over: ELK CREEK

MILLHEIM, Centre, PA

Built 1988 Load: 15.4 t ADT: 934

T-571 MILLCREEK RD

Fair

Over: MILL CREEK

2.02 mi N int w/ SR 1011, Clarion, PA

Built 1959 Load: 15.4 t ADT: 200

SR 219-US 219

Fair

Over: BEAVER RUN

CITY OF DUBOIS, Clearfield, PA

Built 1962 Load: 15.4 t ADT: 12,655

SR 150-PA 150

Fair

Over: BALD EAGLE CREEK

MILL HALL, Clinton, PA

Built 1985 Load: 15.4 t ADT: 8,281

I-81; SR 0081

Fair

Over: NORFOLK SOUTHERN T-310

CITY OF HARRISBURG, Dauphin, PA

Built 1972 Load: 15.4 t ADT: 57,261

SR 1013 ERDMAN RD.

Fair

Over: PINE CREEK

3 MI NE OF GRATZ, Dauphin, PA

Built 1974 Load: 15.4 t ADT: 1,052

ACCESS RD "A" (EB)

Fair

Over: RELOCATED CRUM CREEK

MACDADE BLVD.INTER.43J01, Delaware, PA

Built 1987 Load: 15.4 t ADT: 1,826

SR 2004

Fair

Over: TONOLOWAY CREEK

2.5 MI.E.OF WARFORDSBURG, Fulton, PA

Built 1988 Load: 15.4 t ADT: 154

TOWNSHIP ROAD 406

Fair

Over: RUFF CREEK

SOUTH OF HUPE, Greene, PA

Built 1914 Load: 15.4 t ADT: 50

WORTH STREET

Fair

Over: SOLDIER RUN

0.1 MILE SE OF SR2035, Jefferson, PA

Built 1937 Load: 15.4 t ADT: 671

SR 4055/N.DONNERVL

Fair

Over: US 30; SR 0030

1 MI.N. OF KREADYVILLE, Lancaster, PA

Built 1964 Load: 15.4 t ADT: 6,234

SR 1020 meadow val

Fair

Over: MIDDLE CREEK

1MI N MILLWAY, Lancaster, PA

Built 1964 Load: 15.4 t ADT: 2,206

BYERLAND CHURCH RD

Fair

Over: PEQUEA CREEK

0.2 MI. WEST OF S.R. 272, Lancaster, PA

Built 1990 Load: 15.4 t ADT: 260

OAK STREET

Fair

Over: COCALICO CREEK

2000 FT EAST OF SR 272, Lancaster, PA

Built 1961 Load: 15.4 t ADT: 1,500

SR 2007 (LR 39016)

Fair

Over: L.LEHIGH & TOWPATH

OXFORD DRIVE, Lehigh, PA

Built 1960 Load: 15.4 t ADT: 7,791

HAMILTON STREET

Fair

Over: LEH.R. NS(0521) ALB.ST.

LEHIGH RIVER BRIDGE, Lehigh, PA

Built 1959 Load: 15.4 t ADT: 24,900

ON TSR 601

Fair

Over: FOSTER BROOK

FOSTER BROOK, McKean, PA

Built 1960 Load: 15.4 t ADT: 7,564

SR 60 SB BEAVER

Fair

Over: OVER SR 18 N/SB NEW CAST

SHENANGO TOWNSHIP, Mercer, PA

Built 1974 Load: 15.4 t ADT: 6,263

WATER WHEEL RD

Fair

Over: TRIB TO LIZARD CREEK

WEST OF LEIBYVILLE, Schuylkill, PA

Built 1950 Load: 15.4 t ADT: 50

Showing 351-400 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.