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

SOUTH CREEK ROAD

Poor

Over: BRANDYWINE CR OCTORARO R

2MI.S.CHADDS FORD 40B04, Delaware, PA

Built 1925 Load: 11.8 t ADT: 1,903

LAUREL LANE

Poor

Over: POPLAR RUN

AT SR 1009 INTERSECT, Fayette, PA

Built 1950 Load: 11.8 t ADT: 30

N. GALLATIN AVE

Poor

Over: REDSTONE CREEK

200 NORTH OF PENN ST, Fayette, PA

Built 1953 Load: 11.8 t ADT: 11,880

T-428 PUMP ST.RD

Poor

Over: WOODEN BRIDGE CREEK

5 MI.W.OF HUSTONTOWN, Fulton, PA

Built 1930 Load: 11.8 t ADT: 99

T521 EBERLE ROAD

Poor

Over: GLOBE RUN

1.1 MI.N.OF COTTAGE, Huntingdon, PA

Built 1972 Load: 11.8 t ADT: 150

SR2026

Poor

Over: N BR OF BLACKLICK CR

WEST OF VINTONDALE, Indiana, PA

Built 1971 Load: 11.8 t ADT: 651

SR 4005 SEAMENS RD

Poor

Over: NORFOLK SOUTHERN RR

BENTON TWP 1 M S SR 4004, Lackawanna, PA

Built 1915 Load: 11.8 t ADT: 293

T-306 KEYSTONE RD

Poor

Over: LEHIGH RIVER

CLIFTON 0.2 MI NW SR 435, Lackawanna, PA

Built 1956 Load: 11.8 t ADT: 60

T-346 LEHIGH RD

Poor

Over: EAST BR. ROARING BROOK

COVINGTON 50 SE SR 2009, Lackawanna, PA

Built 1971 Load: 11.8 t ADT: 100

T-926 MAXW HILL RD

Poor

Over: CONESTOGA RIVER

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

Built 1965 Load: 11.8 t ADT: 155

WALLACE RD

Poor

Over: NRTH FORK LIL BEAV CREEK

037011 LITTLE BEAVER TWP, Lawrence, PA

Built 1892 Load: 11.8 t ADT: 50

PA 117; MT.WILSON

Poor

Over: CONEWAGO CREEK

COLEBROOK, Lebanon, PA

Built 1974 Load: 11.8 t ADT: 3,992

FTORKOWSKI ROAD

Poor

Over: HUNTINGTON CREEK

1200 NORTH SR 4016, Luzerne, PA

Built 1910 Load: 11.8 t ADT: 55

T-530

Poor

Over: W. BR. LITTLE MUNCY CRK.

VILLAGE OF BIGGERTOWN, Lycoming, PA

Built 1919 Load: 11.8 t ADT: 40

T-776 BR # 351

Poor

Over: ENGLISH RUN

1.9 MI. NW OF ENGLISH CTR, Lycoming, PA

Built 1930 Load: 11.8 t ADT: 52

BRIDGE 124 T-480

Poor

Over: OVER BRANCH OF SHENANGO

MURPHY ROAD GREENE TWP, Mercer, PA

Built 1963 Load: 11.8 t ADT: 78

BRIDGE 2329 WENGLE

Poor

Over: OVER PINE HOLLOW RUN

WENGLER AVE. SHARON, Mercer, PA

Built 1929 Load: 11.8 t ADT: 268

BRIDGE 2350

Poor

Over: OVER PINE RUN

PRINDLE ST. SHARON CITY, Mercer, PA

Built 1935 Load: 11.8 t ADT: 1,437

EVERGRN HOLLOW RD

Poor

Over: POHOPOCO CREEK

50 FT FROM INT OF RT 115, Monroe, PA

Built 1959 Load: 11.8 t ADT: 269

SR 2006 (LR 48006)

Poor

Over: FREYS RUN

RAUBSVILLE ROAD, Northampton, PA

Built 1896 Load: 11.8 t ADT: 1,559

ERNEST RD

Poor

Over: MONTOUR CREEK

1 NW LANDISBURG/MONTOUR, Perry, PA

Built 1940 Load: 11.8 t ADT: 100

CARLTON ROAD

Poor

Over: TAYLOR CREEK

LA ANNA, Pike, PA

Built 1956 Load: 11.8 t ADT: 50

RICHARD ST

Poor

Over: MAHANOY CREEK

RICHARD ST IN GIRARDVILLE, Schuylkill, PA

Built 1977 Load: 11.8 t ADT: 100

T-719 SCHOOL HOUSE

Poor

Over: BRUSH CREEK

5 MI.SE.OF BERLIN, Somerset, PA

Built 1920 Load: 11.8 t ADT: 50

ROCK RUN ROAD

Poor

Over: LOYALSOCK CREEK

< 1 MI NORTH OF SR 154, Sullivan, PA

Built 1897 Load: 11.8 t ADT: 15

T-533

Poor

Over: TRIB TO MARSH CREEK

1.0 MI. N. OF STOKESDALE, Tioga, PA

Built 1919 Load: 11.8 t ADT: 55

OLD WARREN PIKE

Poor

Over: WEST PITHOLE CREEK

OIL CREEK TOWNSHIP, Venango, PA

Built 1965 Load: 11.8 t ADT: 130

DANLEY BRIDGE T379

Poor

Over: ROBINSON FORK

200 FROM SR 3025, Washington, PA

Built 1887 Load: 11.8 t ADT: 20

GABBY BR (T-505)

Poor

Over: CHARTIERS CREEK

400 WEST OF SR 3013, Washington, PA

Built 1947 Load: 11.8 t ADT: 500

SR4041 ROCK LKE RD

Poor

Over: RILEY CREEK

PRESTON TWP 1.7 M W TR247, Wayne, PA

Built 1975 Load: 11.8 t ADT: 275

OLD WLM. PENN HWY

Poor

Over: WHITEHORN CREEK

200 EAST OF SR 1055, Westmoreland, PA

Built 1924 Load: 11.8 t ADT: 20

FAIRWOOD MANOR DR

Poor

Over: TINKERS RUN

FAIRWOOD MANOR BRIDGE, Westmoreland, PA

Built 1965 Load: 11.8 t ADT: 2,000

SR 2069

Poor

Over: MUDDY CREEK

MUDDY CREEK FORKS, York, PA

Built 1933 Load: 11.8 t ADT: 938

BYBERRY ROAD

Poor

Over: CSX TRANSPORTATION

1 MI NW RTE 1 ADC 3372-K2, Philadelphia, PA

Built 1996 Load: 11.8 t ADT: 20,000

FORESTER ROAD

Poor

Over: ANGELICA CREEK

NOLDE FOREST EEC, Berks, PA

Built 1930 Load: 11.8 t ADT: 20

Delaware Drive

Poor

Over: Pine Run 3257-K9

1/4M E Pinetown Rd, Montgomery, PA

Built 1956 Load: 11.8 t ADT: 500

WOODVIEW ROAD

Poor

Over: EAST BR WHITE CLAY CR

E. GAPNEWPORT PIKE3800C05, Chester, PA

Built 1990 Load: 11.8 t ADT: 250

T-466 ST.CHARLES

Poor

Over: REDBANK CREEK

1.8 mile north of sr-1004, Armstrong, PA

Built 1958 Load: 12.7 t ADT: 125

T317 MOUNTAIN ROAD

Poor

Over: FIFTEENMILE CREEK

.1 MI.E.OF ARTEMAS, Bedford, PA

Built 1940 Load: 12.7 t ADT: 41

T-311 HOWSARE ROAD

Poor

Over: WILSON RUN

1.8 MI.E.OF CHANEYSVILLE, Bedford, PA

Built 2007 Load: 12.7 t ADT: 98

T506 MENNONITE RD

Poor

Over: DUNNING CREEK

2.5 MI.S.OF PLEASANTVILLE, Bedford, PA

Built 1965 Load: 12.7 t ADT: 26

SR2087(LR 160)

Poor

Over: NORFOLK SOUTHERN RR

CENTRE AVE, Berks, PA

Built 1918 Load: 12.7 t ADT: 2,160

GARMAN ROAD

Poor

Over: SACONY CREEK

HEFFNERS BRIDGE, Berks, PA

Built 1905 Load: 12.7 t ADT: 65

13TH STREET

Poor

Over: GILLANS RUN

DUNCANSVILLE 13TH STREET, Blair, PA

Built 1925 Load: 12.7 t ADT: 1,569

ALLENTOWN ROAD

Poor

Over: BR OF UNAMI CREEK/2806G3

1MI.N.TRUMBAUERSV. 13B05, Bucks, PA

Built 1951 Load: 12.7 t ADT: 3,442

S OLDS BOULEVARD

Poor

Over: TRIB TO QUEEN ANNE CREEK

900 SE OF SR2018 3263-B3, Bucks, PA

Built 1953 Load: 12.7 t ADT: 5,000

BRIDGE THREE LANE

Poor

Over: DELAWARE CANAL

SOUTH OF SMITHTOWN, Bucks, PA

Built 1832 Load: 12.7 t ADT: 10

DOE RUN ROAD

Poor

Over: DOE RUN

.1MI.WEST TR 841 37K04, Chester, PA

Built 1932 Load: 12.7 t ADT: 4,881

SR 4004 CENTER RD.

Poor

Over: OVER PADAN RUN

CONNEAUT TOWNSHIP, Crawford, PA

Built 1893 Load: 12.7 t ADT: 195

T-749 KING ROAD

Poor

Over: OVER CARR RUN TRIB.

SPRING TOWNSHIP RUNDELL, Crawford, PA

Built 1910 Load: 12.7 t ADT: 250

Showing 20,901-20,950 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.