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

SR2007

Fair

Over: DEER CREEK

PINEY NO.3, Clarion, PA

Built 1985 Load: 45.4 t ADT: 265

SR 53-PA 53

Fair

Over: TURNER RUN

2 MI S COALPORT, Clearfield, PA

Built 1925 Load: 45.4 t ADT: 2,746

SR 219-US 219

Fair

Over: W BR SUSQUEHANNA RIVER

BURNSIDE BORO, Clearfield, PA

Built 1986 Load: 45.4 t ADT: 1,211

SR 219-US 219

Fair

Over: KRATZER RUN

GRAMPIAN, Clearfield, PA

Built 1926 Load: 45.4 t ADT: 1,884

SR 219-US 219

Fair

Over: BUFFALO & PITTSBURGH RR

SALEM, Clearfield, PA

Built 1989 Load: 45.4 t ADT: 3,723

SR 3005

Fair

Over: COMFORT RUN

IRVONA, Clearfield, PA

Built 1948 Load: 45.4 t ADT: 953

SR 220-US 220

Fair

Over: T-378 HANNA ST.

CASTANEA, Clinton, PA

Built 1976 Load: 45.4 t ADT: 8,269

SR 2002

Fair

Over: FISHING CREEK

3 MILE WEST TYLERSVILLE, Clinton, PA

Built 1988 Load: 45.4 t ADT: 633

W HEMLOCKRD SR4053

Fair

Over: I-80 EBL & WBL

4 MI E OF DANVILLE EXIT, Columbia, PA

Built 1963 Load: 45.4 t ADT: 158

S.R. 1015

Fair

Over: OVER W BR OF BRIAR CREEK

VILLAGE OF FOWLERSVILLE, Columbia, PA

Built 1986 Load: 45.4 t ADT: 945

CREEK RD.

Fair

Over: OVER ROARING CREEK

VILLAGE OF SLABTOWN, Columbia, PA

Built 1956 Load: 45.4 t ADT: 145

SR 4003 CNNTVLL.RD

Fair

Over: OVER FOSTER RUN

CONNEAUT TOWNSHIP, Crawford, PA

Built 1943 Load: 45.4 t ADT: 899

SR 4003 CNNTVLL.RD

Fair

Over: OVER FOSTER RUN

SUMMERHILL TOWNSHIP, Crawford, PA

Built 1943 Load: 45.4 t ADT: 899

T-793 GLYNDEN ROAD

Fair

Over: OVER OIL CREEK EAST BR.

GLYNDEN SPARTA TOWNSHIP, Crawford, PA

Built 1896 Load: 45.4 t ADT: 250

US 11&15

Fair

Over: Trib. to Susquehanna

WORMLEYSBURG BORO, Cumberland, PA

Built 1934 Load: 45.4 t ADT: 6,224

US 15; SR 0015

Fair

Over: TRIB YELLOW BREECHES CR

.5 MI.W. OF GRANTHAM, Cumberland, PA

Built 1958 Load: 45.4 t ADT: 31,622

SR 3001

Fair

Over: NORFOLK SO. R.R.

AT SHIPPENSBURG, Cumberland, PA

Built 1986 Load: 45.4 t ADT: 5,849

3008;Pine Grove Rd

Fair

Over: Mountain Creek

Laurel, Cumberland, PA

Built 1988 Load: 45.4 t ADT: 762

I-83 NB; SR 0083

Fair

Over: NORFOLK SOUTHERN

SWATARA TOWNSHIP 3007K10, Dauphin, PA

Built 1970 Load: 45.4 t ADT: 28,744

PA 147; SR 0147

Fair

Over: MAHANTANGO CREEK

DAUPHIN-N.CUMBERLAND LINE, Dauphin, PA

Built 1991 Load: 45.4 t ADT: 2,323

SR 1009

Fair

Over: TRIB TO WICONISCO CREEK

1 MI.N. OF LOYALTON, Dauphin, PA

Built 1991 Load: 45.4 t ADT: 1,163

TOURIST PARK RD.

Fair

Over: GURDY RUN

2 MI N OF HALIFAX BORO, Dauphin, PA

Built 1920 Load: 45.4 t ADT: 429

PA TPK (I-76)

Fair

Over: T-380

LOWER SWATARA TWP, Dauphin, PA

Built 1949 Load: 45.4 t ADT: 26,550

WALKERMILL RD T431

Fair

Over: PAXTON CREEK

1E I/S81/22/322/PAXTON CR, Dauphin, PA

Built 1984 Load: 45.4 t ADT: 450

ENGLE ROAD T-301

Fair

Over: CONEWAGO CREEK

1.4 TMI/CONEWAGO CR#1, Dauphin, PA

Built 1985 Load: 45.4 t ADT: 200

17TH STREET

Fair

Over: NORFOLK SOUTHERN

C.OF HBG.NSX@I-83, Dauphin, PA

Built 1970 Load: 45.4 t ADT: 4,000

MEDIA BYPASS

Fair

Over: CRUM CREEK CRUM CREEK RD

MARPLE;UPPER PROV. 34F02, Delaware, PA

Built 1958 Load: 45.4 t ADT: 95,412

INTERSTATE 95

Fair

Over: RIDLEY CREEK & SUN DRIVE

OVER RIDLEY CREEK 43J02, Delaware, PA

Built 1965 Load: 45.4 t ADT: 196,159

MID-COUNTY EXWY.SB

Fair

Over: AVONDALE RD;DICKS RUN

1/3MI.N.VALLEY RD. 34G09, Delaware, PA

Built 1989 Load: 45.4 t ADT: 36,649

MID-COUNTY EXWY.

Fair

Over: ITHAN CREEK

RADNOR TOWNSHIP 14G13, Delaware, PA

Built 1967 Load: 45.4 t ADT: 89,897

BULLENS LANE

Fair

Over: MID-CTY;RAMP 6

MACDADE BLVD.INTR. 34J12, Delaware, PA

Built 1987 Load: 45.4 t ADT: 1,916

SPRINGFIELD ROAD

Fair

Over: MID-COUNTY EXPRESSWAY

CARDINAL OHARA HS 25J13, Delaware, PA

Built 1989 Load: 45.4 t ADT: 11,932

TEMPLE ROAD

Fair

Over: WEBB CREEK

0.7 Mi S SR322 ADC 24-C5, Delaware, PA

Built 1962 Load: 45.4 t ADT: 2,997

WYNNEFIELD DRIVE

Fair

Over: COBBS CREEK

.2 Mi NW Eagle Rd 3588-B1, Delaware, PA

Built 1935 Load: 45.4 t ADT: 140

COUNTY LINE ROAD

Fair

Over: SEPTA NORRISTOWN HI SPLN

50 YARDS N.-I476 3477E3, Delaware, PA

Built 1989 Load: 45.4 t ADT: 700

HAVERFORD ROAD

Fair

Over: LITTLE CRUM CREEK

1.2 M N SR13 3697-G9, Delaware, PA

Built 1962 Load: 45.4 t ADT: 2,500

CHESTNUT STREET

Fair

Over: INTERSTATE 95; CSX R.R.

.3 Mi N of PA-320 3807-D3, Delaware, PA

Built 1966 Load: 45.4 t ADT: 4,800

HINCKLEY AVENUE

Fair

Over: STONY CREEK

300 W. of SR-420 3697-K9, Delaware, PA

Built 1900 Load: 45.4 t ADT: 420

RAMP 6 NORTHBOUND

Fair

Over: CRUM CREEK;ACCESS ROAD

MACDADE BLVD.INTER.34J13, Delaware, PA

Built 1987 Load: 45.4 t ADT: 2,224

RAMP A(NB)TO I-476

Fair

Over: MEDIA BYPSS(US-1)/3697B1

1MI.W.SPGFLD.RD. 34G02, Delaware, PA

Built 1990 Load: 45.4 t ADT: 11,710

RAMP D(SB)TO I-476

Fair

Over: MEDIA BY-PASS (US-1)

.5MI.E.STATE RD. 34G02, Delaware, PA

Built 1990 Load: 45.4 t ADT: 8,738

SR 219-US 219

Fair

Over: KARNES RUN

BRANDY CAMP, Elk, PA

Built 1965 Load: 45.4 t ADT: 4,668

SR 949-PA 949

Fair

Over: ISLAND RUN

2 MI SW RIDGWAY, Elk, PA

Built 1959 Load: 45.4 t ADT: 397

SR 5 EAST LAKE RD.

Fair

Over: OVER EIGHT MILE CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1930 Load: 45.4 t ADT: 6,173

SR 20 W RIDGE RD

Fair

Over: OVER TR.CROOKED CREEK

GIRARD TOWNSHIP, Erie, PA

Built 1951 Load: 45.4 t ADT: 3,905

T-548 CHERRY ST.

Fair

Over: OVER SR 90 EB/WB

SUMMIT TOWNSHIP, Erie, PA

Built 1959 Load: 45.4 t ADT: 1,708

T-743 SHADDUCK

Fair

Over: OVER SR 90 EB/WB

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 45.4 t ADT: 370

SR 505 PERRY HWY

Fair

Over: OVER MILL CREEK BRANCH

MILL CREEK TOWNSHIP, Erie, PA

Built 1952 Load: 45.4 t ADT: 7,220

SR 531 DEPOT ROAD

Fair

Over: OVER SIX MILE CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1954 Load: 45.4 t ADT: 1,323

SR 1005 BARTON RD.

Fair

Over: OVER LEBOUEF CREEK

GREENE TOWNSHIP, Erie, PA

Built 1964 Load: 45.4 t ADT: 771

Showing 9,401-9,450 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.