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 0366

Fair

Over: PUCKETA CREEK

MUNICIPAL. OF MURRYSVILLE, Westmoreland, PA

Built 1972 Load: 41.7 t ADT: 8,502

SR 0400

Fair

Over: BRANCH OF PUCKETA CREEK

WASHINGTON TOWNSHIP, Westmoreland, PA

Built 1972 Load: 41.7 t ADT: 12,606

SR 0981

Fair

Over: BRANCH OF BARRON RUN

SOUTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1928 Load: 41.7 t ADT: 1,514

SR 1007

Fair

Over: BRANCH OF HENDRICKS CK.

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1937 Load: 41.7 t ADT: 236

PA TPK (PA-66)

Fair

Over: SR 0119

NEW STANTON BOROUGH, Westmoreland, PA

Built 1977 Load: 41.7 t ADT: 8,392

T-773 UDELL ROAD

Fair

Over: SEWICKLEY CREEK

300 SOUTH OF SR 2012, Westmoreland, PA

Built 1936 Load: 41.7 t ADT: 400

SR2039DIMMICK HILL

Fair

Over: BEAVER RUN

NOXEN TWP 300 E TR 29, Wyoming, PA

Built 1979 Load: 41.7 t ADT: 113

I-83; SR 0083

Fair

Over: LAKE REDMAN

2 1/2 M. NE OF LOGANVILLE, York, PA

Built 1958 Load: 41.7 t ADT: 40,308

PA 177; SR 0177

Fair

Over: BENNETT RUN

LEWISBERRY BORO, York, PA

Built 1968 Load: 41.7 t ADT: 3,950

SR 3019

Fair

Over: S BRANCH CODORUS CREEK

BRILLHART, York, PA

Built 1933 Load: 41.7 t ADT: 136

SR 3042

Fair

Over: SOUTH BR CODORUS CREEK

2 MILE NE OF NEW SALEM, York, PA

Built 1938 Load: 41.7 t ADT: 5,053

SR 3064

Fair

Over: TRIB TO CONEWAGO CR

3 MI.S. OF PARKVILLE, York, PA

Built 1933 Load: 41.7 t ADT: 558

SR 4001

Fair

Over: CODORUS CREEK

.5 MI N COUNTRY CLUB RD, York, PA

Built 1983 Load: 41.7 t ADT: 2,233

SR 4030

Fair

Over: STONY RUN

2 MILE EAST OF DILLSBURG, York, PA

Built 1974 Load: 41.7 t ADT: 1,405

SMYSER ROAD

Fair

Over: CABIN CREEK

1.7S YORKANA/CABIN CREEK, York, PA

Built 1989 Load: 41.7 t ADT: 100

SCHUYLKILL AV WEST

Fair

Over: SCHUYLKILL EXPRESSWAY

E.SIDE OF 30TH ST.3590A08, Philadelphia, PA

Built 1933 Load: 41.7 t ADT: 16,548

20th Street

Fair

Over: Abandoned Conrail

N.CALLOWHILL ST. 28E10, Philadelphia, PA

Built 1898 Load: 41.7 t ADT: 4,500

Wyoming Avenue

Fair

Over: Former Crse Frankford Cr

W. of Castor Avenue 18F13, Philadelphia, PA

Built 1909 Load: 41.7 t ADT: 13,600

Decatur Road

Fair

Over: Waltons Run

S. of Comley Road 10A13, Philadelphia, PA

Built 1961 Load: 41.7 t ADT: 9,000

Red Lion Road

Fair

Over: CSX

E of Bustelton Ave 09G11, Philadelphia, PA

Built 1969 Load: 41.7 t ADT: 26,500

RAMP D TO I-76 EB

Fair

Over: SCHUYLKILL EXWY W.B.

ROOSEVELT BLVD.INT3479J10, Philadelphia, PA

Built 1955 Load: 41.7 t ADT: 28,503

SR 86 W.B.

Fair

Over: OVER SR 89 BEAVER DAM RD

GREENFIELD TOWNSHIP, Erie, PA

Built 1997 Load: 41.7 t ADT: 3,696

SR0085

Fair

Over: COWANSHANNOCK CREEK

SUNNYSIDE NO.1, Armstrong, PA

Built 1998 Load: 41.7 t ADT: 3,772

BEESON AVENUE

Fair

Over: ABANDONED RAILROAD

MARIANNA BRIDGE NO.1, Washington, PA

Built 1998 Load: 41.7 t ADT: 500

WYT SPROWLS BRIDGE

Fair

Over: WHEELING CREEK TRIB

300 NORTH OF TR 341, Washington, PA

Built 1915 Load: 41.7 t ADT: 30

MARSHALL ROAD

Fair

Over: E. BR. BRANDYWINE CREEK

CAMP INDIAN RUN 19K1, Chester, PA

Built 1999 Load: 41.7 t ADT: 2,966

PA 272; Oregon Pk.

Fair

Over: STONY RUN

1/4 MI.N. REAMSTOWN, Lancaster, PA

Built 2000 Load: 41.7 t ADT: 15,111

US 30 ; SR 0030

Fair

Over: FRUITVILLE PK; SR 4011

US 30 OVER FRUITVILLE PK, Lancaster, PA

Built 2000 Load: 41.7 t ADT: 129,602

SR 2006 Deal Road

Fair

Over: CSX RR & TRIB FLAUGHERTY

SAND PATCH, Somerset, PA

Built 2000 Load: 41.7 t ADT: 354

PA 272; Nottingham

Fair

Over: Conowingo Creek

.5 Mi. E. of Wakefield, Lancaster, PA

Built 2000 Load: 41.7 t ADT: 3,086

SR 2007

Fair

Over: OLDTOWN RUN

1 MI. S OF FRANKSTOWN, Blair, PA

Built 2003 Load: 41.7 t ADT: 2,205

SR 61

Fair

Over: OVER SHAMOKIN CK

BOROUGH OF MT CARMEL, Northumberland, PA

Built 2003 Load: 41.7 t ADT: 6,942

SR 1013 BR MAIN ST

Fair

Over: NORFOLK SOUTHERN RR

GALLITZIN BOROUGH, Cambria, PA

Built 2004 Load: 41.7 t ADT: 1,297

T-410 CURRY RUN RD

Fair

Over: CURRY RUN

BTW SR3039 & SR422, Indiana, PA

Built 2002 Load: 41.7 t ADT: 50

T928 RED SCHOOL RD

Fair

Over: CONESTOGA RIVER

1/2 MI SOUTH OF SR 23, Lancaster, PA

Built 2004 Load: 41.7 t ADT: 160

DAIRY ROAD

Fair

Over: QUITTAPAHILLA CREEK

3. W LEB.CITY/QUITTAPAHIL, Lebanon, PA

Built 2005 Load: 41.7 t ADT: 1,500

T-427 BOY SCOUT RD

Fair

Over: SEMICONON RUN

10 FROM INT W/T392, Butler, PA

Built 2004 Load: 41.7 t ADT: 100

DISTRICT ROAD

Fair

Over: CARBAUGH RUN

1.2 MI NW OF NEWMAN RD, Adams, PA

Built 2007 Load: 41.7 t ADT: 25

(T-892) Gilbert Rd

Fair

Over: Yellow Breeches Creek

0.8 mi S SW over Yell. Br, York, PA

Built 2008 Load: 41.7 t ADT: 155

PA TPK (I-76) RAMP

Fair

Over: BRANCH COXES CREEK

SOMERSET INTERCHANGE, Somerset, PA

Built 2005 Load: 41.7 t ADT: 2,830

T-355 ROCK CREEK R

Fair

Over: ROCK CREEK

Village of Custards, Crawford, PA

Built 1970 Load: 41.7 t ADT: 50

Pohopoco Drive

Fair

Over: Wild Creek

2 MI NORTH OF PA 209, Carbon, PA

Built 1962 Load: 41.7 t ADT: 2,000

CLEMENS ROAD

Fair

Over: INDIAN CREEK

NW OF INDIAN CREEK ROAD, Montgomery, PA

Built 1949 Load: 41.7 t ADT: 500

MILL ROAD

Fair

Over: MEADOW BROOK

150 FT S VALLEY RD, Montgomery, PA

Built 1931 Load: 41.7 t ADT: 3,000

FOX CHAPEL RD

Fair

Over: GLADE RUN

SQ03 SYCAMORE RUN #3 BR, Allegheny, PA

Built 1958 Load: 41.8 t ADT: 4,429

BURSON ROAD T-384

Fair

Over: DANIELS RUN

200 WEST OF SR 2015, Washington, PA

Built 1956 Load: 41.8 t ADT: 50

SR 1003 SHUTZ RD.

Fair

Over: OVER WOODCOCK CREEK TRIB

WOODCOCK TOWNSHIP, Crawford, PA

Built 1972 Load: 42.1 t ADT: 427

T-738 BELL DR

Fair

Over: OPOSSUM RUN

AT TWP DR INTERSECT, Fayette, PA

Built 1921 Load: 42.1 t ADT: 500

SR 3001

Fair

Over: Whitethorn Run

2.MI NW OF GLEN IRON, Union, PA

Built 1925 Load: 42.1 t ADT: 239

DEYSHER ROAD

Fair

Over: SACONY CREEK

SE OF KUTZTOWN, Berks, PA

Built 1975 Load: 42.4 t ADT: 400

Showing 8,451-8,500 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.