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 1002 FAIRVIEW R

Fair

Over: OVER OTTER CREEK

FAIRVIEW TOWNSHIP, Mercer, PA

Built 1966 Load: 16.3 t ADT: 859

SR 4003 WASSER RD.

Fair

Over: OVER SHENANGO RIVER

WEST SALEM TOWNSHIP, Mercer, PA

Built 1914 Load: 16.3 t ADT: 304

PA 309(LR 226)

Fair

Over: TRIB. TO KERSHNERS CREEK

2 MI. NORTH OF SNYDERS, Schuylkill, PA

Built 1930 Load: 16.3 t ADT: 7,473

SR 3003

Fair

Over: Big Run

0.75 MI N OF SONESTOWN, Sullivan, PA

Built 1958 Load: 16.3 t ADT: 28

SR4024 TRNBK T-652

Fair

Over: GAYLORD CREEK

MIDDLTWN TWP .1M N SR4022, Susquehanna, PA

Built 1964 Load: 16.3 t ADT: 53

SR 3021

Fair

Over: MIDDLE WHEELING CREEK

WEST FINLEY TOWNSHIP, Washington, PA

Built 1941 Load: 16.3 t ADT: 43

DECOURT ROAD

Fair

Over: CALKINS CREEK

MILANVILLE, Wayne, PA

Built 1960 Load: 16.3 t ADT: 10

SR 0711

Fair

Over: LOYALHANNA CREEK

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1969 Load: 16.3 t ADT: 5,324

SR 1029

Fair

Over: SPRUCE RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1930 Load: 16.3 t ADT: 258

58th Street

Fair

Over: AMTRAK (NEC) SEPTA-AHSL

S of Woodland Ave. 36G03, Philadelphia, PA

Built 1982 Load: 16.3 t ADT: 6,800

VALENTINE ROAD

Fair

Over: BIG BUFFALO CREEK

3 NE KISTLER B. BUFFALO, Perry, PA

Built 2002 Load: 16.3 t ADT: 75

Erskine Road T-324

Fair

Over: MIDDLE WHEELING CREEK

50 South of SR 3018, Washington, PA

Built 2006 Load: 16.3 t ADT: 50

US 15 NB; SR 0015

Fair

Over: CONEWAGO CREEK

S OF HEIDLERSBURG, Adams, PA

Built 1967 Load: 17.2 t ADT: 8,630

US 15 SB; SR 0015

Fair

Over: BERMUDIAN CREEK

N OF HEIDLERSBURG, Adams, PA

Built 1967 Load: 17.2 t ADT: 8,489

PA 134; SR 0134

Fair

Over: US 15; SR 0015

4 MI. S. OF GETTYSBURG, Adams, PA

Built 1963 Load: 17.2 t ADT: 1,989

SR 3004

Fair

Over: US 15; SR 0015

2.75 MI. N. MD. LINE, Adams, PA

Built 1963 Load: 17.2 t ADT: 155

RAILROAD AV

Fair

Over: CAMPBELLS RUN

CM03 INT CAMPBELLS RN R, Allegheny, PA

Built 1902 Load: 17.2 t ADT: 2,938

SR 0376 WB

Fair

Over: SR 3016-GREEN GARDEN RD

I376 WB O/GREEN GARDEN RD, Beaver, PA

Built 1969 Load: 17.2 t ADT: 14,291

SR 1024(LR 06136)

Fair

Over: MILL CREEK

"MAXATAWNY BR"LONG RUN RD, Berks, PA

Built 1923 Load: 17.2 t ADT: 782

SR 2001 (LR06089)

Fair

Over: I-176(LR1011)

CHESTNUTHILL ROAD, Berks, PA

Built 1962 Load: 17.2 t ADT: 826

SR 4013 (SBL)

Fair

Over: SR4009 8TH AVE NORFOLK S

ALTOONA 8TH ST.BRIDGE, Blair, PA

Built 1973 Load: 17.2 t ADT: 7,141

T426 Spencer Crk D

Fair

Over: SPENCER RUN

.5 MI.NW.OF CROSS KEYS, Blair, PA

Built 1946 Load: 17.2 t ADT: 204

SR 3015

Fair

Over: BR.OF PREACHER BROOK

3 MI.N.W.OF FRANKLINDALE, Bradford, PA

Built 1976 Load: 17.2 t ADT: 33

T-862 ATHENS TWP#1

Fair

Over: MURRAY CREEK

0.9 MI. NW GREENS LANDING, Bradford, PA

Built 1950 Load: 17.2 t ADT: 300

HAYCOCK RUN ROAD

Fair

Over: HAYCOCK CREEK

YOUNGKEIN BRIDGE 2583-E8, Bucks, PA

Built 1930 Load: 17.2 t ADT: 50

SR 1002

Fair

Over: MARSH CREEK

2 MI NE ROMOLA, Centre, PA

Built 1985 Load: 17.2 t ADT: 459

WEST CENTRAL AVE.

Fair

Over: AMTRAK (tracks removed)

GREEN TREE RT. 30 3475-A5, Chester, PA

Built 1952 Load: 17.2 t ADT: 650

T-523 TIMBER BRIDG

Fair

Over: REIDS RUN

0.1 mi NW int w/ SR 68, Clarion, PA

Built 1991 Load: 17.2 t ADT: 50

SR 80-I 80

Fair

Over: SANDY LICK CR/BUFF& PITT

ONE-HALF MI E EXIT 101, Clearfield, PA

Built 1967 Load: 17.2 t ADT: 9,264

SR 80-I 80

Fair

Over: SANDY LICK CR/BUFF& PITT

ONE-HALF MI E EXIT 101, Clearfield, PA

Built 1967 Load: 17.2 t ADT: 9,325

T403 COUNTY BR#41

Fair

Over: CATAWISSA CREEK

0.3 MI. S. MAINVILLE, Columbia, PA

Built 1974 Load: 17.2 t ADT: 120

T-399 (GRIFFEN RD)

Fair

Over: OVER LT.SUGAR CREEK

1.75 MI.N.OF COCHRANTON, Crawford, PA

Built 1910 Load: 17.2 t ADT: 250

I-81; SR 0081

Fair

Over: Letort Spring & Trail

.2 MI. N. OF PA 34, Cumberland, PA

Built 1962 Load: 17.2 t ADT: 27,946

SR 0119

Fair

Over: SR 1063

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 17.2 t ADT: 12,418

SR 1051

Fair

Over: SR 0119

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 17.2 t ADT: 3,439

SR 1055

Fair

Over: DUNBAR CREEK

DUNBAR TOWNSHIP, Fayette, PA

Built 1937 Load: 17.2 t ADT: 468

BRUNER RUN ROAD

Fair

Over: BRUNER RUN

OHIOPYLE STATE PARK, Fayette, PA

Built 1971 Load: 17.2 t ADT: 175

SR 3008

Fair

Over: LITTLE TROUGH CREEK

3 MI.N.OF TODD, Huntingdon, PA

Built 1962 Load: 17.2 t ADT: 305

T-360 Peterson Rd

Fair

Over: BLACKLOG CREEK

2 MI.SE.OF ORBISONIA, Huntingdon, PA

Built 1930 Load: 17.2 t ADT: 25

T-756 POPSON RD

Fair

Over: PENN RUN

BTW T758 & T686, Indiana, PA

Built 1978 Load: 17.2 t ADT: 25

T-307 SHEARER HLW

Fair

Over: GEORGE CREEK

AT SR 3025 INTERSECTION, Juniata, PA

Built 1940 Load: 17.2 t ADT: 100

POPLAR STREET

Fair

Over: LACKAWANNA RIVER

100 SE OF WASHINGTON AVE, Lackawanna, PA

Built 1964 Load: 17.2 t ADT: 4,216

PA 23; Marietta Av

Fair

Over: Donegal Creek

1 Mi. E. of Marietta Boro, Lancaster, PA

Built 1975 Load: 17.2 t ADT: 3,159

PA 324;SR 0324

Fair

Over: PEQUEA CREEK

MARTIC FORGE, Lancaster, PA

Built 1970 Load: 17.2 t ADT: 375

I-78 EB; SR 0078

Fair

Over: SWATARA CREEK

2 MI. E. OF I-81, Lebanon, PA

Built 1968 Load: 17.2 t ADT: 14,202

SR 4003 (LR39083)

Fair

Over: SR 78 (LR 443)

KECKS ROAD OVER I-78, Lehigh, PA

Built 1958 Load: 17.2 t ADT: 2,314

ROSS VALLEY RD

Fair

Over: SWITZER CREEK

WEST OF SWEITZER, Lehigh, PA

Built 1950 Load: 17.2 t ADT: 100

SR 2020

Fair

Over: MILL CREEK

PLAINS TWP .1 M W SR 2039, Luzerne, PA

Built 1947 Load: 17.2 t ADT: 2,309

RETREAT ACCESS RD

Fair

Over: SUSQUEHANNA RIVER

AT SR 11 INTERSECTION, Luzerne, PA

Built 1930 Load: 17.2 t ADT: 250

T-602

Fair

Over: LICK RUN

0.5 MI. W. OF GLEN MAWR, Lycoming, PA

Built 1919 Load: 17.2 t ADT: 50

Showing 451-500 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.