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

T-480 OLD RTE 99

Poor

Over: LAMSON RUN TRIBUTARY

AT S. HILL RD INTERSECT, Erie, PA

Built 1913 Load: 43.5 t ADT: 695

US 30; Lincoln Hwy

Poor

Over: ROCKY MT CREEK

CALEDONIA, Franklin, PA

Built 1948 Load: 43.5 t ADT: 15,365

SR 2015

Poor

Over: BOWERY RUN

1.5 E. OF COLLINS, Lancaster, PA

Built 1941 Load: 43.5 t ADT: 402

T-683 GIBBONS RD

Poor

Over: MILL CREEK

1000 FT SOUTH OF T-545, Lancaster, PA

Built 1920 Load: 43.5 t ADT: 515

STATE LINE RD.

Poor

Over: HICKORY CREEK

1/4 MI. SOUTH OF SR 0317, Lawrence, PA

Built 1940 Load: 43.5 t ADT: 491

MUD BRIDGE RD

Poor

Over: L BEAVER CRK NORTH FORK

203002 MUD BRIDGE ROAD, Lawrence, PA

Built 1930 Load: 43.5 t ADT: 100

SR 0309 TR 309

Poor

Over: RAMP A; SR 8039

LUZERNE BORO OVER SR 8039, Luzerne, PA

Built 1980 Load: 43.5 t ADT: 29,899

TR309 CROSS VALLEY

Poor

Over: TOBY CREEK

CRTDALE BO .8 M N SR 1002, Luzerne, PA

Built 1963 Load: 43.5 t ADT: 37,437

SR 1021

Poor

Over: ABRAHAMS CREEK

WYOMING BORO .2M N TR 11, Luzerne, PA

Built 1962 Load: 43.5 t ADT: 6,292

T-470 GARDEAU ROAD

Poor

Over: HALF MILE RUN

2500 FT NORTH OF GARDEAU, McKean, PA

Built 1950 Load: 43.5 t ADT: 40

BUCHERT ROAD

Poor

Over: SPROGELS RUN

L. POTTSGROVE 3027A09, Montgomery, PA

Built 1932 Load: 43.5 t ADT: 1,306

BASIN STREET

Poor

Over: SAWMILL RUN

1600"SE.OF TR202N 3367-G2, Montgomery, PA

Built 1928 Load: 43.5 t ADT: 4,000

EVANS STREET

Poor

Over: NORFOLK SOUTHERN (HSB)

1.1 Mi E PA-100 3138-G1, Montgomery, PA

Built 1928 Load: 43.5 t ADT: 1,500

STONE ARCH RD.

Poor

Over: TRIB BUFFALO CREEK

1 MI W OF WILA, Perry, PA

Built 1948 Load: 43.5 t ADT: 231

T753 WILD TURKEY L

Poor

Over: INDIAN RUN

WILD TURKEY LN.NR.T-753, Schuylkill, PA

Built 1930 Load: 43.5 t ADT: 50

VALLEY ROAD T-377

Poor

Over: DEEP CREEK

T377 IN HEGINS TWP, Schuylkill, PA

Built 1922 Load: 43.5 t ADT: 100

ASH CIRCLE

Poor

Over: LIZARD CREEK

320 FT SOUTH OF S.R.0895, Schuylkill, PA

Built 1930 Load: 43.5 t ADT: 150

SR 3001

Poor

Over: RILEY CREEK

AUBURN TWP 1.3M S SR 3004, Susquehanna, PA

Built 1957 Load: 43.5 t ADT: 284

Possum Hollow Road

Poor

Over: Trib of L Sewickley Crk

1/2 mi NE of SR3077, Westmoreland, PA

Built 1930 Load: 43.5 t ADT: 833

DELSHANN RD T-377

Poor

Over: Dutch Fork

Donegal TWP, Washington, PA

Built 1962 Load: 43.5 t ADT: 1,500

COUNTRY CLUB ROAD

Poor

Over: BRANCH OF BEAVER CREEK

BR.BEAVER CRK/E END ATWN, Adams, PA

Built 1925 Load: 44.5 t ADT: 200

8TH STREET

Poor

Over: FOX RUN

8th St N Cambria Boro, Cambria, PA

Built 1918 Load: 44.5 t ADT: 103

SR 2005

Poor

Over: SINKING CREEK

SPRING MILLS, Centre, PA

Built 1960 Load: 44.5 t ADT: 575

TOWNSHIP LINE ROAD

Poor

Over: COBBS CREEK

DEL.-PHILA.LINE 26J08, Delaware, PA

Built 1934 Load: 44.5 t ADT: 31,649

T-309 BURNT CHU RD

Poor

Over: TUSCARORA CREEK

200 W OF HECKMAN STATION, Juniata, PA

Built 1915 Load: 44.5 t ADT: 50

OLIVE STREET

Poor

Over: LACKAWANNA RIVER

800 SW OF PROVIDENCE RD, Lackawanna, PA

Built 1957 Load: 44.5 t ADT: 8,200

PA 441; SR 0441

Poor

Over: STAMENS RUN

WASHINGTON BOROUGH, Lancaster, PA

Built 1939 Load: 44.5 t ADT: 4,757

SR 2001

Poor

Over: SOLOMON CREEK

ASHLEY BORO .4M W SR2010, Luzerne, PA

Built 1984 Load: 44.5 t ADT: 3,796

SR 2055

Poor

Over: POND CREEK

FOSTER TWP 1.5M S SR 2046, Luzerne, PA

Built 1959 Load: 44.5 t ADT: 1,805

SR 4018

Poor

Over: PINE CREEK

HUNTINGTN TP .1M E SR4035, Luzerne, PA

Built 1952 Load: 44.5 t ADT: 141

BRIDGE 903 T-636

Poor

Over: OVER OTTER CREEK TRIB.

BUSH RD OTTER CREEK TWP., Mercer, PA

Built 1958 Load: 44.5 t ADT: 126

WEST AIRY STREET

Poor

Over: MARKLEY ST;SEPTA;CRK;RD

NORRISTOWN 3367-E02, Montgomery, PA

Built 1977 Load: 44.5 t ADT: 6,665

SUMNEYTOWN PIKE

Poor

Over: TOWAMENCIN CREEK

.1 Mi SE PA-363 3143-K4, Montgomery, PA

Built 1986 Load: 44.5 t ADT: 19,455

SASSAMANSVILLE RD

Poor

Over: SCHLEGEL RUN

1.4 MI NW SR 663 2915-H6, Montgomery, PA

Built 1927 Load: 44.5 t ADT: 700

S.R. 4004

Poor

Over: TRIB NORTH BR SUSQ RIVER

5 MI NE OF SUNBURY, Northumberland, PA

Built 1912 Load: 44.5 t ADT: 367

T-364 TURBOT TWP.

Poor

Over: OVER MUDDY RUN

4 MI N OF MILTON, Northumberland, PA

Built 1949 Load: 44.5 t ADT: 150

SR 2001

Poor

Over: BUFFALO CREEK

1 MI W BUFFALO CROSSROADS, Union, PA

Built 1960 Load: 44.5 t ADT: 538

SR 4022 BUXTON RD

Poor

Over: OVER PORTER RUN

PLUM TOWNSHIP, Venango, PA

Built 1940 Load: 44.5 t ADT: 188

SR 2009

Poor

Over: TRIB TO HOLBERT CREEK

BERLIN TWP .2 M S SR 1005, Wayne, PA

Built 1988 Load: 44.5 t ADT: 727

SR 1014

Poor

Over: MCGEE RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1952 Load: 44.5 t ADT: 2,441

SR 2023

Poor

Over: WELTY RUN

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 1908 Load: 44.5 t ADT: 961

REED AVENUE

Poor

Over: THIRD STREET

REED AVENUE BRIDGE, Westmoreland, PA

Built 1976 Load: 44.5 t ADT: 750

BUNNELL ROAD

Poor

Over: RILEY CREEK

2.5 MILES NE OF MESHOPPEN, Wyoming, PA

Built 1934 Load: 44.5 t ADT: 50

PENN OAK STREET

Poor

Over: FALLEN TIMBER RUN

AT SR 51 INTERSECTION, Allegheny, PA

Built 1948 Load: 45.4 t ADT: 200

KUTZ MILL ROAD

Poor

Over: SACONY CREEK

1 MI. NW OF KUTZTOWN, Berks, PA

Built 1869 Load: 45.4 t ADT: 113

16TH STREET

Poor

Over: BLAIR GAP RUN

DUNCANSVILLE 16TH STREET, Blair, PA

Built 1925 Load: 45.4 t ADT: 1,514

MAYER ROAD

Poor

Over: HOGUE RUN

0.1 mi S of W LIBERTY RD, Butler, PA

Built 1930 Load: 45.4 t ADT: 100

SR 4002 LUXEMBURG

Poor

Over: PINE CREEK

ERDMAN, Dauphin, PA

Built 1860 Load: 45.4 t ADT: 250

T-480 OLD RTE 99

Poor

Over: LAMSON RUN

750 N OF STANCLIFF RD, Erie, PA

Built 1941 Load: 45.4 t ADT: 561

T-742 YELLOW CR RD

Poor

Over: YELLOW CREEK

BTW T634 AND T633, Indiana, PA

Built 1978 Load: 45.4 t ADT: 100

Showing 23,001-23,050 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.