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-400 CTY BR 18

Fair

Over: RAPID RUN

0.3 MI. N. OF FOREST HILL, Union, PA

Built 1916 Load: 32.7 t ADT: 50

UNIVERSITY AVE

Fair

Over: LIMESTONE RUN

UNIVERSITY AVE. LEWISBURG, Union, PA

Built 1900 Load: 32.7 t ADT: 1,944

SR 80 EB & WB

Fair

Over: SCRUBGRASS CREEK TRIB.

CLINTONVILLE BOROUGH, Venango, PA

Built 1965 Load: 32.7 t ADT: 19,744

SR 322 28TH DIV.HY

Fair

Over: OVER LOWER TWO MILE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1981 Load: 32.7 t ADT: 7,917

SR 3008 KNNRDLL RD

Fair

Over: OVER BULLION RUN

CLINTON TOWNSHIP, Venango, PA

Built 1900 Load: 32.7 t ADT: 969

T-357 PORTERFIELD

Fair

Over: OVER MILL CREEK

RICHLAND TOWNSHIP, Venango, PA

Built 1901 Load: 32.7 t ADT: 100

T-381 MYERS MILL R

Fair

Over: OVER PINE RUN

ROCKLAND TOWNSHIP, Venango, PA

Built 1990 Load: 32.7 t ADT: 100

STATE STREET

Fair

Over: ALLEGH.RIVER WNY&PA RR

STATE STREET OIL CITY, Venango, PA

Built 1990 Load: 32.7 t ADT: 17,000

GRANT STREET

Fair

Over: MILL CREEK

UTICA BOROUGH, Venango, PA

Built 1900 Load: 32.7 t ADT: 100

SR 59 KINZUA LANE

Fair

Over: OVER BROWN RUN

MEAD TOWNSHIP, Warren, PA

Built 1931 Load: 32.7 t ADT: 1,028

SR 62 MARKET ST.

Fair

Over: OVER JACKSON RUN

CONEWANGO TOWNSHIP, Warren, PA

Built 1973 Load: 32.7 t ADT: 16,857

SR 957

Fair

Over: OVER KIANTONE CREEK

FARMINGTON TOWNSHIP, Warren, PA

Built 1954 Load: 32.7 t ADT: 1,276

SR 2002 HIGH ST.

Fair

Over: OVER TIONESTA CREEK

SHEFFIELD TOWNSHIP, Warren, PA

Built 1937 Load: 32.7 t ADT: 203

SR 4011 HAZELTINE

Fair

Over: OVER HAZELTINE HOLLW RUN

SUGAR GROVE TOWNSHIP, Warren, PA

Built 1959 Load: 32.7 t ADT: 111

SR 0022

Fair

Over: LITTLE RACCOON RUN

SMITH TOWNSHIP, Washington, PA

Built 1970 Load: 32.7 t ADT: 19,995

SR 0040

Fair

Over: Turnpike 43 (Mile 29.97)

CENTERVILLE BOROUGH, Washington, PA

Built 1974 Load: 32.7 t ADT: 11,273

SR 0070

Fair

Over: SR 0231

CLAYSVILLE BOROUGH, Washington, PA

Built 1960 Load: 32.7 t ADT: 13,818

SR 0070

Fair

Over: SR 0221

BUFFALO TOWNSHIP, Washington, PA

Built 1960 Load: 32.7 t ADT: 13,818

SR 0070

Fair

Over: NORTH BR. PIGEON CREEK

SOMERSET TOWNSHIP, Washington, PA

Built 1956 Load: 32.7 t ADT: 27,992

SR 0079

Fair

Over: LITTLE TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1965 Load: 32.7 t ADT: 24,849

SR 0079

Fair

Over: BR. LITTLE TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1965 Load: 32.7 t ADT: 25,407

SR 2089

Fair

Over: TWO MILE RUN

CENTERVILLE BOROUGH, Washington, PA

Built 1954 Load: 32.7 t ADT: 789

SR 1014

Fair

Over: BR. LITTLE CHARTIERS CK.

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 32.7 t ADT: 702

SR 4015

Fair

Over: CHERRY RUN

MOUNT PLEASANT TOWNSHIP, Washington, PA

Built 1938 Load: 32.7 t ADT: 1,158

SR 4018

Fair

Over: CROSS CREEK

CROSS CREEK TOWNSHIP, Washington, PA

Built 1924 Load: 32.7 t ADT: 1,004

SR 4023

Fair

Over: BR. NORTH FORK CROSS CK.

JEFFERSON TOWNSHIP, Washington, PA

Built 1946 Load: 32.7 t ADT: 309

SR 4035

Fair

Over: SOUTH FORK OF CROSS CK.

CROSS CREEK TOWNSHIP, Washington, PA

Built 1939 Load: 32.7 t ADT: 229

PA TPK (TOLL 43)

Fair

Over: PIKE RUN

WEST OF CALIFORNIA, Washington, PA

Built 1990 Load: 32.7 t ADT: 7,244

COOPER ROAD

Fair

Over: MAPLE CREEK

EAST OF MON FAYETTE XP, Washington, PA

Built 2002 Load: 32.7 t ADT: 300

GALLEY ROAD T-643

Fair

Over: LITTLE CHARTIERS CREEK

NORTH STRABANE TWP, Washington, PA

Built 1929 Load: 32.7 t ADT: 9,200

TOWNSHIP ROAD 611

Fair

Over: SAINT PATRICK RUN

SOUTH OF SR4026 OFF RT22, Washington, PA

Built 1932 Load: 32.7 t ADT: 100

ADAMS AVENUE

Fair

Over: BRUSH RUN

CANNONSBURG EAST SIDE, Washington, PA

Built 1920 Load: 32.7 t ADT: 500

SR 8011

Fair

Over: TRIB. LITTLE CHARTIERS C

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 32.7 t ADT: 1,810

SR 8024 (Ramp G)

Fair

Over: NORTH BRANCH PIGEON CK.

SOMERSET TOWNSHIP, Washington, PA

Built 1956 Load: 32.7 t ADT: 1,967

SR 8024 (Ramp H)

Fair

Over: NORTH BRANCH PIGEON CK.

SOMERSET TOWNSHIP, Washington, PA

Built 1956 Load: 32.7 t ADT: 1,886

SR 0006 TR 6

Fair

Over: TRIB LACKAWAXEN RIVER

TEXAS TWP .6 M W SR 3032, Wayne, PA

Built 1954 Load: 32.7 t ADT: 7,465

SR 0006 TR 6

Fair

Over: CARLEY BROOK

HONESDALE BO 140E SR2007, Wayne, PA

Built 1936 Load: 32.7 t ADT: 16,239

SR 0371 TR 371

Fair

Over: ALDER MARSH BROOK

LEBANON TWP .3M E SR 1023, Wayne, PA

Built 1963 Load: 32.7 t ADT: 697

SR 0507 TR 507

Fair

Over: INLET TO SNAG POND

LEHIGH TWP 300 W SR 3001, Wayne, PA

Built 1984 Load: 32.7 t ADT: 3,538

SR 0507 TR 507

Fair

Over: MILL CREEK

DREHER TWP .7 M E TR 196, Wayne, PA

Built 1959 Load: 32.7 t ADT: 909

SR 1001

Fair

Over: CARLEY BROOK

BERLIN TWP @ JCT SR 1010, Wayne, PA

Built 1943 Load: 32.7 t ADT: 584

SR 1001 CARLEY BK

Fair

Over: CARLEY BROOK

OREGON TWP 1.8M N SR 1010, Wayne, PA

Built 1943 Load: 32.7 t ADT: 584

SR 1002

Fair

Over: TRIB AT S BR CALKINS CR

DAMASCUS TWP 1M E SR 1005, Wayne, PA

Built 1953 Load: 32.7 t ADT: 129

SR1016 CALLICON RD

Fair

Over: HOLLISTER CREEK

DAMASCUS TWP 1M W SR 1020, Wayne, PA

Built 1964 Load: 32.7 t ADT: 719

TWP RD 343 BTRNT R

Fair

Over: BUTTERNUT CREEK

STERLING TWP 1 M E TR 196, Wayne, PA

Built 1958 Load: 32.7 t ADT: 81

SR 3019

Fair

Over: MAPLEWOOD CREEK

LAKE TP 800 N SR 3017, Wayne, PA

Built 1944 Load: 32.7 t ADT: 67

SR 3026

Fair

Over: MILE BROOK

S CANAAN TP 2.3M S SR3018, Wayne, PA

Built 1990 Load: 32.7 t ADT: 84

SR 4017

Fair

Over: CRAMER CREEK

LEBANON TWP 2.1M W SR4007, Wayne, PA

Built 1955 Load: 32.7 t ADT: 22

BR.30 DOLANS T-682

Fair

Over: EQUINUNK CREEK

PRESTON TWP 0.85 MI W 247, Wayne, PA

Built 1897 Load: 32.7 t ADT: 68

BR.38 OLD STEPHENS

Fair

Over: WILCOX CREEK

STERLING TWP 280FT SR3007, Wayne, PA

Built 1930 Load: 32.7 t ADT: 65

Showing 4,951-5,000 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.