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 0070

Fair

Over: DUTCH FORK BUFFALO CREEK

DONEGAL TOWNSHIP, Washington, PA

Built 1961 Load: 43.5 t ADT: 14,338

SR 0070

Fair

Over: DUTCH FORK OF BUFFALO CK

DONEGAL TOWNSHIP, Washington, PA

Built 1961 Load: 43.5 t ADT: 12,124

SR 0070

Fair

Over: TOWNSHIP ROAD 532

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 Load: 43.5 t ADT: 15,181

SR 2005

Fair

Over: LITTLE TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1960 Load: 43.5 t ADT: 758

FLUSHING ROAD

Fair

Over: FISHPOT RUN

BETWEEN SR 88 & MON RIVER, Washington, PA

Built 1920 Load: 43.5 t ADT: 5

SR 4024

Fair

Over: BUFFALO CREEK

BLAINE TOWNSHIP, Washington, PA

Built 1964 Load: 43.5 t ADT: 334

SR1016 CALLICOONRD

Fair

Over: HOLLISTER CREEK

DAMASCUS TWP 1 M E SR1033, Wayne, PA

Built 1964 Load: 43.5 t ADT: 719

SR 3028 OWEGO TPK

Fair

Over: OUTLET REINING POND

CHERY RDGE TP .4MW SR3039, Wayne, PA

Built 1935 Load: 43.5 t ADT: 1,667

SR4014 MAPLE GROVE

Fair

Over: SHADIGEE CREEK

STARRUCCA 159 N SR 4012, Wayne, PA

Built 1961 Load: 43.5 t ADT: 70

TWP RTE T-355

Fair

Over: JONES CREEK

360 ft W of RTE 348, Wayne, PA

Built 1910 Load: 43.5 t ADT: 70

SR 2006

Fair

Over: JACOBS CREEK

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 1974 Load: 43.5 t ADT: 131

PA TPK (RAMP EF)

Fair

Over: SR 3091

NEW STANTON BOROUGH, Westmoreland, PA

Built 1964 Load: 43.5 t ADT: 12,870

SR 0092 TR 92

Fair

Over: MARTIN CREEK

NICHOLSON 300 S SR 1019, Wyoming, PA

Built 1960 Load: 43.5 t ADT: 2,397

CREEK FLATS DRIVE

Fair

Over: FALLS CREEK

1.4 MILES N.E. OF FALLS, Wyoming, PA

Built 1987 Load: 43.5 t ADT: 150

SR 3046

Fair

Over: WEST BR CODORUS CREEK

.5 MI. NE OF NEW SALEM, York, PA

Built 1934 Load: 43.5 t ADT: 3,217

SR 4008

Fair

Over: RED RUN

4.5 MI W DAVIDSBURG, York, PA

Built 1966 Load: 43.5 t ADT: 1,742

TAXVILLE ROAD

Fair

Over: HONEY RUN

1.9WTHOMASVILLE/HONEYRUN, York, PA

Built 1989 Load: 43.5 t ADT: 600

WILLOW CREEK ROAD

Fair

Over: CABIN CREEK

2 W E. PROSPECT/CABIN CR., York, PA

Built 1930 Load: 43.5 t ADT: 500

MEADOW ROAD

Fair

Over: KREUTZ CREEK

0.4 MI N OF SR 124, York, PA

Built 1940 Load: 43.5 t ADT: 50

ROOSEVELT BLVD.

Fair

Over: BYBERRY RUN

N.WOODHAVEN ROAD 3373A03, Philadelphia, PA

Built 1954 Load: 43.5 t ADT: 24,070

INTERSTATE 95 S.B.

Fair

Over: PENROSE AVE/TRIB MINGO C

N.PLATT BRIDGE 3699E08, Philadelphia, PA

Built 1984 Load: 43.5 t ADT: 83,681

ERIE AVENUE AT 11T

Fair

Over: CONRAILRICHMOND BRANCH

BW10/1TH ST 3480G09, Philadelphia, PA

Built 1995 Load: 43.5 t ADT: 9,623

5TH STREET

Fair

Over: AMTRAK MAIN LINE N-S

S.TIOGA ST;N.PHILA3480H10, Philadelphia, PA

Built 1922 Load: 43.5 t ADT: 10,636

65TH STREET

Fair

Over: COBBS CREEK PARKWAY

SW.PHILADELPHIA 3699A02, Philadelphia, PA

Built 1926 Load: 43.5 t ADT: 6,279

15TH STREET

Fair

Over: VINE STR;RAMP V-15-W

VINE ST.EXPRESSWAY3590D07, Philadelphia, PA

Built 1989 Load: 43.5 t ADT: 33,496

RAMP#3 ON RAMP

Fair

Over: LANSDOWNE DRIVE

GIRARD AVE.INTERCH3589J04, Philadelphia, PA

Built 1956 Load: 43.5 t ADT: 6,849

T495 KIBBE HILL RD

Fair

Over: WHITE BR NORTH FORK CRK

300 FT SOUTH OF SR 1016, Potter, PA

Built 1997 Load: 43.5 t ADT: 35

PERRY HW

Fair

Over: SLIPPERY ROCK CREEK

50 FT N.W. OF TWP RD 487, Lawrence, PA

Built 1997 Load: 43.5 t ADT: 3,681

KESSLER ROAD T-556

Fair

Over: LITTLE WICONISCO CR

KESSLER ROAD 2 MI W BERRY, Dauphin, PA

Built 1997 Load: 43.5 t ADT: 50

SCHUYLKILL AV WEST

Fair

Over: SCHUYLKILL EXPWAY;RAMP J

30TH ST STA. 3590B07, Philadelphia, PA

Built 1932 Load: 43.5 t ADT: 16,548

US 119

Fair

Over: CHEAT RIVER

CHEAT RIVER @ PT MARION, Fayette, PA

Built 1998 Load: 43.5 t ADT: 3,421

TWP RD 505

Fair

Over: NORT FK. OF WHEELING CK.

RYERSON STATE PARK, Greene, PA

Built 1998 Load: 43.5 t ADT: 30

PA 501

Fair

Over: LITTLE SWATARA CREEK

0.2 MI. S. OF MARSTOWN, Schuylkill, PA

Built 1999 Load: 43.5 t ADT: 3,957

ENGLISH ROAD

Fair

Over: BUCHANNAN RUN

209002 SKILLEN HOLLOW BR, Lawrence, PA

Built 1999 Load: 43.5 t ADT: 100

I-81 NB (LR 1005)

Fair

Over: SR 4007 (LR 53001)

2.5MI.N.OF EXIT 116(35), Schuylkill, PA

Built 2000 Load: 43.5 t ADT: 11,163

SR 0167 TR 167

Fair

Over: BRANCH OF FALL BROOK

BRDGWTR TWP 1.2M N SR4003, Susquehanna, PA

Built 2000 Load: 43.5 t ADT: 565

SR 80 WB

Fair

Over: OVER T998 CENTERTOWN RD.

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 Load: 43.5 t ADT: 8,040

SR 3035

Fair

Over: RAMP D

WEST OF DAUPHIN, Dauphin, PA

Built 1999 Load: 43.5 t ADT: 2,802

SR 8045 RAMP C

Fair

Over: US 22/322

WEST OF DAUPHIN, Dauphin, PA

Built 1999 Load: 43.5 t ADT: 359

LOWER STATE ROAD

Fair

Over: PARK CREEK

BTWN 63 & 463 3145-G6, Montgomery, PA

Built 1935 Load: 43.5 t ADT: 5,000

BUSHEY SCHOOL RD

Fair

Over: LATIMORE CREEK

1.0 MI E. OF LATIMORE, Adams, PA

Built 1999 Load: 43.5 t ADT: 50

RAMP LL

Fair

Over: OPEN GROUND

AIRPORT INTERCHA 3698J10, Philadelphia, PA

Built 2002 Load: 43.5 t ADT: 6,157

SR 4016(OLD US 22)

Fair

Over: SHAFFERS RUN

SHAFFERSVILLE, Huntingdon, PA

Built 2002 Load: 43.5 t ADT: 117

SR 99-I 99

Fair

Over: T-361 AND TRIB SPRING CR

1 MI E OF STATE COLLEGE, Centre, PA

Built 2001 Load: 43.5 t ADT: 13,665

T319 OAKRIDGE DR

Fair

Over: US 219

0.77 MI N OF TR 756, Cambria, PA

Built 2002 Load: 43.5 t ADT: 5,257

SR 3003

Fair

Over: DRAKE RUN

DRAKETOWN, Somerset, PA

Built 2003 Load: 43.5 t ADT: 235

DAY USE ACCESS RD.

Fair

Over: N FORK WHEELING CREEK

AT SR 3022 INTERSECT, Greene, PA

Built 1998 Load: 43.5 t ADT: 105

T444 Flowing Spr R

Fair

Over: FRANKSTOWN BR.JUNIATA R.

FLOWING SPRING, Blair, PA

Built 2005 Load: 43.5 t ADT: 35

POE VALLEY ROAD

Fair

Over: BIG POE CREEK

3/4 MI E OF PINE SWAMP RD, Centre, PA

Built 2006 Load: 43.5 t ADT: 100

JACKSON STATION RD

Fair

Over: LEBOEUF CREEK

1200 NE OF PERRY HWY, Erie, PA

Built 2007 Load: 43.5 t ADT: 136

Showing 9,001-9,050 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.