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

COLLEGE DRIVE

Poor

Over: MANATAWNY CREEK

E OF KEYSTONE DR, Montgomery, PA

Built 1970 Load: 0.0 t ADT: 3,000

NORTH ADAMS STREET

Poor

Over: SPROGELS RUN

S OF BUCHERT RD 3027-A9, Montgomery, PA

Built 1960 Load: 0.0 t ADT: 3,000

LOCKVILLE RD

Poor

Over: WHITELOCK CREEK

1/4 MI SE OF RT 292, Wyoming, PA

Built 1972 Load: 0.0 t ADT: 50

STONE ARCH BRDG RD

Poor

Over: BUCKWHA CREEK

BUCKWHA CR, Monroe, PA

Built 1901 Load: 0.0 t

Cemetery Road

Poor

Over: Dickerson Run

200 ft. west of PA 819, Fayette, PA

Built 1902 Load: 0.0 t ADT: 50

LISBON RD

Poor

Over: SOUTH BR. BRADYS RUN

250WEST OF TWP RD 406, Beaver, PA

Built 1960 Load: 0.9 t ADT: 1,412

BOOT ROAD

Poor

Over: AMTRAK

NEAR DOWNINGTOWN 31B2, Chester, PA

Built 1964 Load: 0.9 t ADT: 9,682

SR0286

Poor

Over: KISKIMINETAS RIVER

SALTSBURG, Indiana, PA

Built 1985 Load: 0.9 t ADT: 4,169

SR 4014 ACADEMY ST

Poor

Over: PINE CREEK

NEW COLMBS BO 1M E SR4011, Luzerne, PA

Built 1961 Load: 0.9 t ADT: 573

T-783 HARRIS HILL

Poor

Over: TOBYS CREEK

100 FT NE OF SR 309, Luzerne, PA

Built 1920 Load: 0.9 t ADT: 220

BRIDGE 2805 T-303

Poor

Over: OVER SHENANGO RIVER TRIB

HEASLEY RD SHENANGO TWP, Mercer, PA

Built 1922 Load: 0.9 t ADT: 89

SR 33SB(LR 796)

Poor

Over: I-80(LR 1002)

PA 33 SB OVER I-80, Monroe, PA

Built 1963 Load: 0.9 t ADT: 6,755

MAPLE STREET

Poor

Over: GOODSPRING CREEK

TREMONT BORO MAPLE STREET, Schuylkill, PA

Built 1935 Load: 0.9 t ADT: 40

SR 3014

Poor

Over: LAUREL HILL CREEK

BARRONVALE, Somerset, PA

Built 1962 Load: 0.9 t ADT: 167

SR 4012

Poor

Over: LOYALSOCK CREEK

BORO OF FORKSVILLE, Sullivan, PA

Built 1850 Load: 0.9 t ADT: 137

SR 0167 TR 167

Poor

Over: MARTINS CREEK

HOP BOTTOM BO JCT SR 2002, Susquehanna, PA

Built 1962 Load: 0.9 t ADT: 1,676

SR 0006 TR 6

Poor

Over: MIDDLE CREEK

HAWLEY BORO RIVER & MAIN, Wayne, PA

Built 1958 Load: 0.9 t ADT: 7,850

SR 1002

Poor

Over: DELAWARE RIVER

DAMASCUS TP SKINNERS FLLS, Wayne, PA

Built 1901 Load: 0.9 t ADT: 355

DAVIS ROAD

Poor

Over: SOUTH BR. CALKINS CREEK

2.6 MILE SW OF MILANVILLE, Wayne, PA

Built 1970 Load: 0.9 t ADT: 4

SR 0136

Poor

Over: YOUGHIOGHENY RIVER

WEST NEWTON BRIDGE, Westmoreland, PA

Built 1907 Load: 0.9 t ADT: 6,557

Brewery Street

Poor

Over: Jacks Run

200 W of S URANIA Ave, Westmoreland, PA

Built 1960 Load: 0.9 t ADT: 70

T348 LOCKVILLE RD.

Poor

Over: WHITELOCK CREEK

3 M E OF CENTER MORELAND, Wyoming, PA

Built 1945 Load: 0.9 t ADT: 50

Clark Street

Poor

Over: Fallen Timber Run

Clark St Hooversville, Somerset, PA

Built 1910 Load: 0.9 t ADT: 100

LINCOLN AV

Poor

Over: GIRTYS RUN

445007 AT NORTH AVE, Allegheny, PA

Built 1911 Load: 1.8 t ADT: 4,500

UPPER UNION MILL

Poor

Over: DELAWARE CANAL

SE NEW HOPE, Bucks, PA

Built 1962 Load: 1.8 t ADT: 110

COTTONWOOD STREET

Poor

Over: WALNUT RUN

Cottonwood St N Camb Boro, Cambria, PA

Built 1915 Load: 1.8 t ADT: 308

T-584

Poor

Over: LITTLE CLEARFIELD CREEK

400 FT NE OF SR 2022, Clearfield, PA

Built 1919 Load: 1.8 t ADT: 5

SELLERS AVENUE

Poor

Over: AMTRAK MAIN LINE

4MILES NORTH US-13 35C12, Delaware, PA

Built 1904 Load: 1.8 t ADT: 3,404

T-354 HIDINGER RD

Poor

Over: MAXWELL RUN

500 FT NE OF T308 INT, Elk, PA

Built 1930 Load: 1.8 t ADT: 4

URBANIA ROAD

Poor

Over: GEORGES CREEK

NEAR T336-T354 JUNCTION, Fayette, PA

Built 1909 Load: 1.8 t ADT: 25

BELMONT RD

Poor

Over: PEQUEA CREEK

1/2 MILE NORTH OF SR 30, Lancaster, PA

Built 1893 Load: 1.8 t ADT: 2,000

UNNAMED RD

Poor

Over: E OCTORARO CREEK

3/4 MILE SE OF SR 2009, Lancaster, PA

Built 1880 Load: 1.8 t ADT: 150

T-588 HURON STREET

Poor

Over: OVER CHESTNUT RUN

HURON ST.OVER CHESTNUT RN, Mercer, PA

Built 1897 Load: 1.8 t ADT: 28

T-368 SPRING RUN

Poor

Over: KISHACOQUILLAS CREEK

0.8 MI S OF SR 0655, Mifflin, PA

Built 1930 Load: 1.8 t ADT: 93

US 209(LR 164 ALT)

Poor

Over: LAKE CREEK

SCIOTA, Monroe, PA

Built 1963 Load: 1.8 t ADT: 9,903

POST OFFICE RD.

Poor

Over: MARSHALL CREEK

200 FT.WEST OF SR 2028, Monroe, PA

Built 1912 Load: 1.8 t ADT: 10

T-498 (UPHAM ROAD)

Poor

Over: GAYLORD CREEK

3.1 MI SW OF MIDDLETOWN, Susquehanna, PA

Built 1886 Load: 1.8 t ADT: 25

CHURCH STREET

Poor

Over: SALT LICK CREEK

NEW MILFORD ADJ. WALL ST, Susquehanna, PA

Built 1905 Load: 1.8 t ADT: 384

T-639 STEWART ROAD

Poor

Over: OVER WINTON RUN

COLUMBUS TOWNSHIP, Warren, PA

Built 1953 Load: 1.8 t ADT: 75

SR 1023

Poor

Over: EQUINUNK CREEK

MANCHSTR TWP .3M S SR4007, Wayne, PA

Built 1964 Load: 1.8 t ADT: 65

BOYCE ROAD

Poor

Over: HOLLISTER CREEK

.1 MI S OF SR 1016, Wayne, PA

Built 1950 Load: 1.8 t ADT: 20

T611 HATCHERY ROAD

Poor

Over: WEST BR LACKAWAXEN RIVER

1 M S OF ROUTE 371, Wayne, PA

Built 1905 Load: 1.8 t ADT: 25

SR 3011

Poor

Over: SR 0070

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1958 Load: 1.8 t ADT: 2,334

T318 Shaner Road

Poor

Over: TRIB. OF YOUGH. RIVER

BTW T621 & T623, Westmoreland, PA

Built 1930 Load: 1.8 t ADT: 60

SR 2044

Poor

Over: N BRANCH MUDDY CREEK

MUDDY CREEK FORKS, York, PA

Built 1933 Load: 1.8 t ADT: 89

T427 White BridgeR

Poor

Over: FRTOWN.BR.JUNIATA RIVER

GEESEYTOWN, Blair, PA

Built 1929 Load: 2.7 t ADT: 125

KNECHT BRIDGE RD

Poor

Over: COOKS CREEK

1.2 M E SR212 ADC 2582-F4, Bucks, PA

Built 1873 Load: 2.7 t ADT: 100

Sunday Road

Poor

Over: DELAWARE CANAL

NW OF KINTNERSVILLE, Bucks, PA

Built 1984 Load: 2.7 t ADT: 60

T-306

Poor

Over: MCKINNON BRANCH

4300 FT NE OF PA 120, Cameron, PA

Built 1940 Load: 2.7 t ADT: 25

MURRAY RD (T-915)

Poor

Over: LUTHERSBURGBRSANDYLICKCR

400 FT EAST OF SR 4014, Clearfield, PA

Built 1915 Load: 2.7 t ADT: 80

Showing 20,501-20,550 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.