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

PENNSYLVANIA AVE.

Poor

Over: WHITE CLAY CREEK

.2MI.EAST LR 15047 46E08, Chester, PA

Built 1927 Load: 20.0 t ADT: 18,971

T-574 CTY BR#126

Poor

Over: YOST RUN

0.85 MI NW OF JONESTOWN, Columbia, PA

Built 1960 Load: 20.0 t ADT: 50

US 209; SR 0209

Poor

Over: WICONISCO CREEK

LYKENS BORO LINE WEST, Dauphin, PA

Built 1974 Load: 20.0 t ADT: 5,740

SR 4013 DUNN VLY.R

Poor

Over: OVER ELK CREEK

MCKEAN TOWNSHIP, Erie, PA

Built 1955 Load: 20.0 t ADT: 634

T-400 GUDGEONVILLE

Poor

Over: ELK CREEK

3/4 MI S OF BECKMAN RD, Erie, PA

Built 1837 Load: 20.0 t ADT: 205

T-675 PAGE ROAD

Poor

Over: W BR FRENCH CREEK

1 MI E OF PHILLIPSVILLE, Erie, PA

Built 1975 Load: 20.0 t ADT: 149

SCOTTS RUN ROAD

Poor

Over: BIG SANDY CREEK

75 East of SR 2003, Fayette, PA

Built 1903 Load: 20.0 t ADT: 10

CHARLES STREET

Poor

Over: DUNLAP CREEK

BESIDE PUBLIC LIBRARY, Fayette, PA

Built 1974 Load: 20.0 t ADT: 500

T581 PATTERSON CK

Poor

Over: PATTERSON CREEK

SW OF NINEVEH, Greene, PA

Built 1914 Load: 20.0 t ADT: 100

TOWNSHIP ROAD 546

Poor

Over: RUFF CREEK

WEST OF LIPPINCOTT, Greene, PA

Built 1900 Load: 20.0 t ADT: 25

T409 TUSCAR CRK RD

Poor

Over: TUSCARORA CREEK

BLAIRS MILLS, Huntingdon, PA

Built 1934 Load: 20.0 t ADT: 66

MARY STREET

Poor

Over: LEGGETTS CREEK

500 EAST OF W MARKET ST, Lackawanna, PA

Built 1979 Load: 20.0 t ADT: 2,000

MACUNGIE ROAD

Poor

Over: LITTLE LEHIGH CREEK

NORTH OF SAUERKRAUT LANE, Lehigh, PA

Built 1950 Load: 20.0 t ADT: 750

MR 0115 TR 115

Poor

Over: READING BLUEMT& NORTHERN

PLAINS TWP .6 M N SR 2039, Luzerne, PA

Built 1941 Load: 20.0 t ADT: 22,078

SR 0118 TR 118

Poor

Over: FADES CREEK

LAKE TWP .1 M W TR 29, Luzerne, PA

Built 1932 Load: 20.0 t ADT: 3,914

SR 3011

Poor

Over: WAPWALLOPEN CREEK

HOLNBCK TWP 1.2M E SR3012, Luzerne, PA

Built 1958 Load: 20.0 t ADT: 128

T433 BARBERTOWN RD

Poor

Over: KING RUN

400 FT SW OF KINGS RUN RD, McKean, PA

Built 1960 Load: 20.0 t ADT: 100

BRIDGE 2007 T-688

Poor

Over: OVER OTTER CREEK

TAIT RD COOLSPRING TWP., Mercer, PA

Built 1966 Load: 20.0 t ADT: 295

CONGO ROAD

Poor

Over: SWAMP CREEK

GILBERTSVILLE 2915D9, Montgomery, PA

Built 1954 Load: 20.0 t ADT: 1,506

GLENDON HILL ROAD

Poor

Over: LEHIGH RIVER

HUGH MOORE PARK - CANAL, Northampton, PA

Built 1905 Load: 20.0 t ADT: 100

T-392

Poor

Over: BOILE RUN

E.OF FISHERS FERRY, Northumberland, PA

Built 1951 Load: 20.0 t ADT: 100

SR 1024

Poor

Over: BUFFALO CREEK

1 MI NORTH OF NEWPORT, Perry, PA

Built 1938 Load: 20.0 t ADT: 148

PA 54 (LR 161)

Poor

Over: MAHANOY CREEK

EAST SIDE OF ASHLAND, Schuylkill, PA

Built 1893 Load: 20.0 t ADT: 3,207

SR 1021(LR 53217)

Poor

Over: RBMNRR

.8 M.N.OF HOMETOWN, Schuylkill, PA

Built 1924 Load: 20.0 t ADT: 1,384

DEWALT ROAD

Poor

Over: UPPER SWATARA CR

0.1 MI NORTH OF SR 3002, Schuylkill, PA

Built 1961 Load: 20.0 t ADT: 50

HILL AVE

Poor

Over: MAHANOY CREEK

MAIZEVILLE OLD RTE 924, Schuylkill, PA

Built 1954 Load: 20.0 t ADT: 20

T-359

Poor

Over: LITTLE LOYALSOCK CREEK

VILLAGE OF CHERRY MILLS, Sullivan, PA

Built 1933 Load: 20.0 t ADT: 100

WATER STREET

Poor

Over: STARRUCCA CREEK

THOMPSON .2 M. W. MAIN ST, Susquehanna, PA

Built 1920 Load: 20.0 t ADT: 100

SR 2017

Poor

Over: OVER TIOGA RIVER

BORO OF BLOSSBURG, Tioga, PA

Built 1933 Load: 20.0 t ADT: 3,872

T-593 BOALS ROAD

Poor

Over: EAST BR. SUGAR CREEK

JACKSON TOWNSHIP, Venango, PA

Built 1939 Load: 20.0 t ADT: 100

T-647 ACEL ROAD

Poor

Over: OVER LITTLE SUGAR CREEK

PLUM TOWNSHIP, Venango, PA

Built 1910 Load: 20.0 t ADT: 200

T377 VALLEY CHURCH

Poor

Over: PINE RUN

EAST OF NICKLEVILLE, Venango, PA

Built 1920 Load: 20.0 t ADT: 50

T-508 LUDWICK RD.

Poor

Over: OVER KIANTONE CREEK

FARMINGTON TOWNSHIP, Warren, PA

Built 1940 Load: 20.0 t ADT: 100

DEPOT STREET

Poor

Over: GARLAND RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1986 Load: 20.0 t ADT: 150

SR 2047

Poor

Over: LITTLE TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1941 Load: 20.0 t ADT: 77

SMITH BRIDGE TR318

Poor

Over: TENMILE CREEK

300 WEST OF SR 2020, Washington, PA

Built 1954 Load: 20.0 t ADT: 75

Hull Road

Poor

Over: TENMILE CREEK TRIB

2000 SOUTH OF SR 2024, Washington, PA

Built 1942 Load: 20.0 t ADT: 20

SR 0447 TR 447

Poor

Over: BR WALLENPAUPACK CREEK

DREHER TWP 200 E TR 191, Wayne, PA

Built 1957 Load: 20.0 t ADT: 1,539

SR 4007 EQN CRK RD

Poor

Over: EQUINUNK CREEK

MANCHSTR TP 2.4M W SR1023, Wayne, PA

Built 1976 Load: 20.0 t ADT: 46

6TH STREET

Poor

Over: BRUSH CREEK

SIXTH STREET BRIDGE, Westmoreland, PA

Built 1930 Load: 20.0 t ADT: 1,564

SR 2011 VILLAGE RD

Poor

Over: WHITELOCK CREEK

N MORELND TP .2M S TR 292, Wyoming, PA

Built 1941 Load: 20.0 t ADT: 695

EAST MAIN STREET

Poor

Over: TUSCARORA CREEK

OLD ROUTE 6, Wyoming, PA

Built 1938 Load: 20.0 t ADT: 240

NORTH GRANTHAM RD

Poor

Over: YELLOW BREECHES CREEK

0.7 MI S OF SR 2004, York, PA

Built 1955 Load: 20.0 t ADT: 1,022

INTERSTATE 95

Poor

Over: EARTH FILL & SEWER ACCES

NR.FRANKFORD CREEK3591G01, Philadelphia, PA

Built 1968 Load: 20.0 t ADT: 201,917

Kay Street

Poor

Over: Little Pine Creek

500 FT FROM SR 1013, Allegheny, PA

Built 1970 Load: 20.0 t ADT: 50

TR401 KEEN LAKE RO

Poor

Over: KEEN LAKE INLET

1/4 MI FROM ROUTE 6, Wayne, PA

Built 1942 Load: 20.0 t ADT: 75

GOULDEN ROAD

Poor

Over: ROCK CREEK

1.5 SE ROUND TOP/ROCK CRE, Adams, PA

Built 1936 Load: 20.9 t ADT: 125

LINCOLN HWY

Poor

Over: LONG RUN

237 FT E OF SR 0048, Allegheny, PA

Built 1940 Load: 20.9 t ADT: 14,106

T-587 KAY FARM RD

Poor

Over: SIX MILE RUN

.5 MI.E.OF RIDDLESBURG, Bedford, PA

Built 1930 Load: 20.9 t ADT: 51

T-634 Mill Street

Poor

Over: YELLOW CREEK

WOODBURY, Bedford, PA

Built 1974 Load: 20.9 t ADT: 50

Showing 21,351-21,400 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.