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

FREEMAN STREET

Poor

Over: FURNACE CREEK

WEST OF FURNACE STREET, Berks, PA

Built 1920 Load: 14.5 t ADT: 456

FURNACE STREET

Poor

Over: FURNACE CREEK

SOUTH END OF BOROUGH, Berks, PA

Built 1908 Load: 14.5 t ADT: 112

SR 3008(LOBSTOR)

Poor

Over: POLECAT RUN

NW.OF CLAYSBURG(LOBSTOR), Blair, PA

Built 1973 Load: 14.5 t ADT: 492

T-454 CARRARA RD

Poor

Over: GLADE RUN

0.25 MI From SR 1010 INT, Butler, PA

Built 1927 Load: 14.5 t ADT: 100

ART SCHOOL ROAD

Poor

Over: BRANCH PICKERING CREEK

NR.CHESTER SPRINGS 13H10, Chester, PA

Built 1920 Load: 14.5 t ADT: 647

TOWNSHIP ROAD

Poor

Over: W. BRANCH BIG ELK CREEK

.2 Mi NW Balt Pk 3907-K1, Chester, PA

Built 1924 Load: 14.5 t ADT: 1,431

HICKORY HILL ROAD

Poor

Over: LITTLE ELK CREEK

1.7 MI S PA 472 4020-E4, Chester, PA

Built 1889 Load: 14.5 t ADT: 427

T-333 RAGER RD

Poor

Over: BEAVER RUN

1700 FT EAST OF US 219, Clearfield, PA

Built 1935 Load: 14.5 t ADT: 40

SOUTH AVENUE

Poor

Over: MUCKINIPATTIS CREEK

0.1Mi SR13 3698-D8, Delaware, PA

Built 1927 Load: 14.5 t ADT: 3,779

T-517 GOODBAN RD

Poor

Over: GOODBAN RUN

300 FT S OF VAN CAMP RD, Erie, PA

Built 1920 Load: 14.5 t ADT: 11

ALLISON ROAD

Poor

Over: DUNLAP CREEK

OUTSIDE ALLISON NO. 2, Fayette, PA

Built 1963 Load: 14.5 t ADT: 500

GREENFIELD RD EXT

Poor

Over: DICKERSON RUN

VANDERBILT BOROUGH, Fayette, PA

Built 1928 Load: 14.5 t ADT: 50

TOWNSHIP ROAD 479

Poor

Over: BROWNS CREEK

WEST OF SYCAMORE, Greene, PA

Built 1919 Load: 14.5 t ADT: 20

SR3017

Poor

Over: CHERRY RUN

GINTER NO.2, Indiana, PA

Built 1975 Load: 14.5 t ADT: 416

LINCOLN AVENUE

Poor

Over: RUSH BROOK

JERMYN 80 S. OF SR 107, Lackawanna, PA

Built 1930 Load: 14.5 t

T-945 LIME ROCK RD

Poor

Over: MIDDLE CREEK

400 FT WEST OF T-590, Lancaster, PA

Built 1950 Load: 14.5 t ADT: 25

JEFFERSON ST

Poor

Over: BIG RUN

037003 CITY OF NEW CASTLE, Lawrence, PA

Built 1914 Load: 14.5 t ADT: 500

SR 2020 SCOTT ST

Poor

Over: LAUREL RUN

WBARRE CTY .7M N TR309BUS, Luzerne, PA

Built 1929 Load: 14.5 t ADT: 5,498

BROADWAY STREET

Poor

Over: SUSQUEHANNA RIVER

AT US 11/PA29 INTERSECT., Luzerne, PA

Built 1914 Load: 14.5 t ADT: 9,300

T-362 WEST VALLEY

Poor

Over: IRISH HOLLOW CREEK

2000 NW OF IRISH HOLLOW, McKean, PA

Built 1910 Load: 14.5 t ADT: 200

T-384 BROOKLYN ST

Poor

Over: KNAPP CREEK

NEAR HAINES DR INTERSECT, McKean, PA

Built 1890 Load: 14.5 t ADT: 40

ARNOLD AVENUE

Poor

Over: LILLIBRIDGE CREEK

ARNOLD / BROAD ST INTER, McKean, PA

Built 1957 Load: 14.5 t ADT: 400

COUNTY LINE ROAD

Poor

Over: SWAMP CREEK

.6 Mi NE PA-100 2915-B6, Montgomery, PA

Built 1939 Load: 14.5 t ADT: 3,000

WASHINGTON STREET

Poor

Over: NORFOLK SOUTHERN (HSB)

400 S of High St 3138-H2, Montgomery, PA

Built 1920 Load: 14.5 t ADT: 100

WILLOW STREET

Poor

Over: SHAMOKIN CREEK

SHAMOKIN CITY, Northumberland, PA

Built 1906 Load: 14.5 t ADT: 600

SR 4025

Poor

Over: BRIZZIE HOLLOW RUN

OSWAYO, Potter, PA

Built 1953 Load: 14.5 t ADT: 74

T-654 CAMP ROAD

Poor

Over: LOW. LIT. SWATARA CREEK

S.OF SR 895 E.OF SR 501, Schuylkill, PA

Built 1932 Load: 14.5 t ADT: 150

T-444 IRVINE RUN R

Poor

Over: OVER IRVINE RUN

BROKENSTRAW TOWNSHIP, Warren, PA

Built 1965 Load: 14.5 t ADT: 100

SR 2037

Poor

Over: SR 0070

FALLOWFIELD TOWNSHIP, Washington, PA

Built 1958 Load: 14.5 t ADT: 1,827

BOLES ARCH BRIDGE

Poor

Over: CROSS CREEK TRIB.

1000 WEST OF SR 4029, Washington, PA

Built 1913 Load: 14.5 t ADT: 30

SR 1023

Poor

Over: SOUTH BR EQUINUNK CREEK

MANCHESTR TP 1M S SR 4007, Wayne, PA

Built 1950 Load: 14.5 t ADT: 65

SR2012 LTHIA VL RD

Poor

Over: BR OF S BR TUNKHANNOCK C

CLINTON TWP 1.6 M S TR 6, Wyoming, PA

Built 1930 Load: 14.5 t ADT: 282

BARRENS VALLEY RD

Poor

Over: TRIBUTARY BERMUDIAN CR

0.9 MI SE OF FRANKLINTOWN, York, PA

Built 1978 Load: 14.5 t ADT: 200

WEYHEMEYER STREET

Poor

Over: LITTLE WAPWALLOPEN CREEK

200 FT SE OF SR 2047, Luzerne, PA

Built 1935 Load: 14.5 t ADT: 10

Canal St

Poor

Over: Snake Run to Beaver Run

.1 Mile NE of Wampum, Lawrence, PA

Built 1950 Load: 14.5 t ADT: 82

SMYRNA RD

Poor

Over: HOUSTON RUN

AT ROD AND GUN CLUB, Lancaster, PA

Built 1964 Load: 14.5 t ADT: 200

PENNEMAN DRIVE

Poor

Over: FALLEN TIMBER RUN

AT SR 51 INTERSECT, Allegheny, PA

Built 1951 Load: 15.4 t ADT: 500

CAVITT RD

Poor

Over: ABERS CREEK

AB04 ABERS CREEK NO. 4, Allegheny, PA

Built 1987 Load: 15.4 t ADT: 500

SHENANGO RD

Poor

Over: N BR BRADYS RUN

1/4 MI.EAST OF SR 4019, Beaver, PA

Built 1937 Load: 15.4 t ADT: 536

VALLEY RD

Poor

Over: BIG SEWICKLEY CREEK

102001 BIG SEWICK CK BRDG, Beaver, PA

Built 1978 Load: 15.4 t ADT: 150

GAUL ROAD

Poor

Over: LITTLE CACOOSING CREEK

NORTH OF SR.422, Berks, PA

Built 1971 Load: 15.4 t ADT: 207

T-463 Etna Furnace

Poor

Over: ROARING RUN

4 MI.NE.OF WILLIAMSBURG, Blair, PA

Built 1914 Load: 15.4 t ADT: 44

WEST CHESTNUT AVE.

Poor

Over: MILL RUN

W.CHESTNUT AVE.& 31ST.STR, Blair, PA

Built 1930 Load: 15.4 t ADT: 1,848

T-461 (CO. BR. 41)

Poor

Over: WYALUSING CREEK

0.9 MI. N.E. OF WYALUSING, Bradford, PA

Built 1902 Load: 15.4 t ADT: 250

PROSPECT-TROY BORO

Poor

Over: FALL BROOK

PROSPECT ST TROY BORO, Bradford, PA

Built 1972 Load: 15.4 t ADT: 200

SR3018

Poor

Over: I-79 NB/SB & TR BRUSH CR

OGLE NO.1, Butler, PA

Built 1970 Load: 15.4 t ADT: 10,286

T-603 SAINT JOE RD

Poor

Over: BONNIE BROOK

1/2 MI FROM INT W/T621, Butler, PA

Built 1915 Load: 15.4 t ADT: 100

STONE MOUNTAIN RD

Poor

Over: LIZARD CREEK

S.OF SR 895 NR.SCH.CO.LIN, Carbon, PA

Built 1984 Load: 15.4 t ADT: 300

T-467 HOY RD

Poor

Over: LITTLE FISHING CREEK

0.8 MI SW OF NITTANY, Centre, PA

Built 1936 Load: 15.4 t ADT: 150

T-647 HAGANTOWN RD

Poor

Over: TRIB TO ALLEGHENY RIVER

0.5 mi SW int w/ SR 368, Clarion, PA

Built 1920 Load: 15.4 t ADT: 50

Showing 21,051-21,100 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.