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 3032 CONNELY BL

Good

Over: OVER PINE RUN

CITY OF SHARON, Mercer, PA

Built 1989 Load: 88.9 t ADT: 7,324

SR 3017 RAYMILTON

Good

Over: OVER LITTLE SANDY CREEK

FRENCH CREEK TOWNSHIP, Venango, PA

Built 1995 Load: 88.9 t ADT: 175

SR 4013

Good

Over: TRIB TO BUCK RUN

1 MILE SOUTH WEST BURNHAM, Mifflin, PA

Built 2004 Load: 88.9 t ADT: 1,528

SR 3034

Good

Over: MIDDLE CREEK

SO CANAAN TWP 185W TR296, Wayne, PA

Built 2008 Load: 88.9 t ADT: 44

SR 1011

Good

Over: PINE RUN

PERRY TOWNSHIP, Mercer, PA

Built 1907 Load: 88.9 t ADT: 431

SR 4034

Good

Over: WOLF RUN

AT SR 4041 INT, Beaver, PA

Built 2010 Load: 88.9 t ADT: 625

PA 419 (LR310)

Good

Over: STONE CREEK

4 POINT RD. @ MERKEY DR., Berks, PA

Built 1958 Load: 89.7 t ADT: 2,553

PA TPK (I-76)

Good

Over: TRIB.VALLEY CREEK

NEAR VALLEY FORGE PARK, Chester, PA

Built 1950 Load: 89.7 t ADT: 47,120

SR 97 OLD FRENCH

Good

Over: OVER MILL CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 1984 Load: 89.7 t ADT: 7,218

SR 0079

Good

Over: Cumberland Mine Railroad

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 89.7 t ADT: 20,472

PA 103

Good

Over: LICKING CREEK

92 FEET SOUTH OF SR 2019, Huntingdon, PA

Built 1973 Load: 89.7 t ADT: 439

PA TPK (I-76)

Good

Over: SEGLOCH RUN

CLAY TWP, Lancaster, PA

Built 1949 Load: 89.7 t ADT: 24,971

PA TPK (I-76)

Good

Over: INDIAN RUN

12 MI EAST OF LEB LAN INT, Lancaster, PA

Built 1950 Load: 89.7 t ADT: 24,971

MCCASLIN ROAD

Good

Over: HOTTENBAUGH RUN

202003 MCCASLIN BRIDGE, Lawrence, PA

Built 2004 Load: 89.7 t ADT: 100

T320 MCCLAIN RD

Good

Over: SUGAR CREEK TRIBUTARY

BTW T383 & SR108, Lawrence, PA

Built 2006 Load: 89.7 t ADT: 50

SR 15

Good

Over: OVER SPRING RUN

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 89.7 t ADT: 28,748

SR 0180

Good

Over: OVER GRAFIUS RUN

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1971 Load: 89.7 t ADT: 43,236

SR-180 E/WB

Good

Over: BULL RUN

1.3M E WLLMSPRT CTY LINE, Lycoming, PA

Built 1982 Load: 89.7 t ADT: 32,255

SR 0015

Good

Over: OVER BEAUTYS RUN

OLD LYCOMING TOWNSHIP, Lycoming, PA

Built 1990 Load: 89.7 t ADT: 16,879

SR 80 EB/WB & RAMP

Good

Over: HOGBACK RUN

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 Load: 89.7 t ADT: 24,178

PA TPK (I-276)

Good

Over: PENNYPACK CR.

EAST OF WILLOW GROVE INTG, Montgomery, PA

Built 1954 Load: 89.7 t ADT: 104,500

PA TPK (I-476)

Good

Over: TOWAMENCIN CREEK

NEAR LANSDALE, Montgomery, PA

Built 1955 Load: 89.7 t ADT: 65,329

PA TPK (I-476)

Good

Over: BR.SKIPPACK CR;NB-151

N OF LANSDALE INTERCHANGE, Montgomery, PA

Built 1955 Load: 89.7 t ADT: 50,307

SR 3007 (LR 48011)

Good

Over: NANCY RUN

NR.BORO LINE FREEMANSBURG, Northampton, PA

Built 1938 Load: 89.7 t ADT: 12,600

SR 62 MARKET ST.

Good

Over: OVER JOHNNY RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1959 Load: 89.7 t ADT: 7,045

SR 957

Good

Over: OVER PINE VALLEY BROOK

COLUMBUS TOWNSHIP, Warren, PA

Built 1937 Load: 89.7 t ADT: 952

SR 0070

Good

Over: CHARTIERS CREEK

FRANKLIN TOWNSHIP, Washington, PA

Built 1957 Load: 89.7 t ADT: 29,209

SR 0022

Good

Over: PUCKETY LANE (T-706)

MUNICIPAL OF MURRYSVILLE, Westmoreland, PA

Built 1949 Load: 89.7 t ADT: 34,027

PA TPK (I-76)

Good

Over: JACOBS CREEK

WEST OF DONEGAL INTERCHGE, Westmoreland, PA

Built 1939 Load: 89.7 t ADT: 35,220

SR 3015 LEXINGTON

Good

Over: OVER CROOKED CREEK

GIRARD TOWNSHIP, Erie, PA

Built 2002 Load: 89.7 t ADT: 635

SR 4013

Good

Over: SPRING RUN

ALTOONA JUNIATA, Blair, PA

Built 2003 Load: 89.7 t ADT: 9,470

SR 1056

Good

Over: TR. TO SATTERLEE CREEK

4 MI EAST OF ATHENS BORO, Bradford, PA

Built 2006 Load: 89.7 t ADT: 779

TPK I-476 Ramp AB

Good

Over: PA TPK (I-476)

Wyoming Valley Interchang, Luzerne, PA

Built 2012 Load: 89.7 t ADT: 5,270

NAVY WAY ROAD

Good

Over: LIDYS CREEK

SOUTH OF AIRPORT, Luzerne, PA

Built 2017 Load: 89.7 t ADT: 4,613

SR 0019 NB SB

Good

Over: SR 3004 MCMURRAY RD

OVER SR 3004, Allegheny, PA

Built 1940 Load: 90.7 t ADT: 33,282

SR 2007

Good

Over: BIG FISHING CREEK

2 MI W GREENBURR, Clinton, PA

Built 2003 Load: 90.7 t ADT: 80

COVERED BRIDGE RD

Good

Over: MANATAWNY CREEK

PLEASANTVILLE, Berks, PA

Built 1852 Load: 91.6 t ADT: 1,654

PA 896; Hartman Br

Good

Over: Pequea Creek

1 mi.N. of Strasburg, Lancaster, PA

Built 1954 Load: 92.5 t ADT: 12,731

SR 2020

Good

Over: TRIBUTARY MILL CREEK

2 MI E OF HEPBURNVILLE, Lycoming, PA

Built 1935 Load: 92.5 t ADT: 234

SR 1011(LR 45034)

Good

Over: FOREST HILLS RUN

2 MI.NORTH OF SWIFTWATER, Monroe, PA

Built 1956 Load: 92.5 t ADT: 906

S.R. 19

Good

Over: SR 837

150 SOUTH OF W. END BR., Allegheny, PA

Built 2003 Load: 92.5 t ADT: 14,476

EAST CHESTNUT ST

Good

Over: SCHOENECK CREEK

NAZARETH, Northampton, PA

Built 1994 Load: 92.5 t ADT: 200

SR 2011

Good

Over: DANIELS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1986 Load: 93.4 t ADT: 1,220

GROVER ROAD (T415)

Good

Over: MEADOW RUN

W OF SR 2011 BY OHIOPYLE, Fayette, PA

Built 2001 Load: 93.4 t ADT: 150

10th Street

Good

Over: Nancy Run

Nancy Run Estates, Northampton, PA

Built 2000 Load: 93.4 t ADT: 50

RAPPS DAM ROAD

Good

Over: FRENCH CREEK

.5 MI. S. RTE 23 14J4, Chester, PA

Built 1866 Load: 94.0 t ADT: 3,279

PA TPK (I-76)

Good

Over: Little Sewickley Creek

ARONA, Westmoreland, PA

Built 2012 Load: 94.0 t ADT: 34,735

SR2006 Ashville Rd

Good

Over: Octoraro Creek

Pine Grove, Lancaster, PA

Built 2008 Load: 94.3 t ADT: 963

SR 0296 TR 296

Good

Over: MIDDLE CREEK

LAKE TWP .1 M S TR 196, Wayne, PA

Built 2002 Load: 95.3 t ADT: 991

CAMP HILL ROAD

Good

Over: PRIVATE DRIVE

100 N of I-276 3258-A9, Montgomery, PA

Built 1998 Load: 96.2 t ADT: 4,200

Showing 20,251-20,300 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.