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

PA TPK (TOLL 43)

Fair

Over: SR 0070

INTERCHANGE 43 & 70, Washington, PA

Built 1990 Load: 55.3 t ADT: 3,193

SR 4018

Fair

Over: TURTLE CREEK

TRAFFORD BOROUGH, Westmoreland, PA

Built 1925 Load: 55.3 t ADT: 5,432

PA TPK (I-76)

Fair

Over: JACOBS CREEK

WEST OF DONEGAL INTERCHGE, Westmoreland, PA

Built 1939 Load: 55.3 t ADT: 34,232

SR 0381 LR 64157

Fair

Over: PA TPK (I-76)

NEAR KREGAR, Westmoreland, PA

Built 1939 Load: 55.3 t ADT: 343

T405 HOODS MILL R

Fair

Over: FOURMILE RUN

BTW SR 130 & T499, Westmoreland, PA

Built 1972 Load: 55.3 t ADT: 100

I-83; SR 0083

Fair

Over: SR 2097

1 MI.N.E. OF SHREWSBURY, York, PA

Built 1958 Load: 55.3 t ADT: 35,695

ASHBURNER STREET

Fair

Over: INTERSTATE 95

NR.TORRESDALE INTE3482J05, Philadelphia, PA

Built 1965 Load: 55.3 t ADT: 13,050

Linden Avenue

Fair

Over: AMTRAK (NE CORRIDOR)

W of State Rd 3483 A3, Philadelphia, PA

Built 1996 Load: 55.3 t ADT: 13,500

Ashburner Street

Fair

Over: Delaware Expy (I-95)

W of State Road 19J10, Philadelphia, PA

Built 1964 Load: 55.3 t ADT: 4,000

RAMP D OF US-1

Fair

Over: RAMP CLW TO SCHUYLKILL

RT76;US1 INTERCHA;3479J10, Philadelphia, PA

Built 1970 Load: 55.3 t ADT: 28,503

PA 56

Fair

Over: DUNNINGS CREEK

1.4 MI.EAST OF TR 96, Bedford, PA

Built 2004 Load: 55.3 t ADT: 6,070

SR 90 EB

Fair

Over: OVER ELK CREEK

GIRARD TOWNSHIP, Erie, PA

Built 2005 Load: 55.3 t ADT: 10,226

S.R. 0092

Fair

Over: OXBOW CREEK

LEMON TWP .2M N SR 1009, Wyoming, PA

Built 2007 Load: 55.3 t ADT: 2,002

NORTH WALES ROAD

Fair

Over: STONY CREEK

0.5 MI. W. I-476 3255K3, Montgomery, PA

Built 2006 Load: 55.3 t ADT: 7,478

CLOVER MILL ROAD

Fair

Over: PICKERING CREEK

.5 MI. E. US 113 14B10, Chester, PA

Built 2009 Load: 55.3 t ADT: 636

SR 4010

Fair

Over: REDSTONE CREEK

FRANKLIN TOWNSHIP, Fayette, PA

Built 1954 Load: 55.7 t ADT: 739

SECOND STREET

Fair

Over: BUFFALO & PITTSBURGH RR

0.1 MI N OF SR351, Lawrence, PA

Built 2015 Load: 55.7 t ADT: 5,527

SR 3002

Fair

Over: MARSH CREEK

1/2 MI.N. OF MD. LINE, Adams, PA

Built 1949 Load: 56.2 t ADT: 358

FLESHMAN MILL RD

Fair

Over: CONEWAGO CREEK S.BRANCH

1 SW N OXFD/S BR.CONEWAGO, Adams, PA

Built 1961 Load: 56.2 t ADT: 300

PARKWAY WEST

Fair

Over: HAYMAKER ROAD

I 376 W.B.OVER SR 2057, Allegheny, PA

Built 1962 Load: 56.2 t ADT: 25,835

PATPK RAMP AB

Fair

Over: PA TPK (I-76)

BUTLER VALLEY INTERCHANGE, Allegheny, PA

Built 1952 Load: 56.2 t ADT: 8,559

COAL VALLEY RD

Fair

Over: LEWIS RUN

LW01 LEWIS RUN NO. 1, Allegheny, PA

Built 1941 Load: 56.2 t ADT: 4,081

KENNEDY BL

Fair

Over: LOGTOWN RUN

1000 FT SW OF SR 3001, Beaver, PA

Built 1962 Load: 56.2 t ADT: 9,490

PA TPK (I-76)

Fair

Over: SR 1014 LR 04076

W OF JUNCTION 1019 & 1014, Beaver, PA

Built 1952 Load: 56.2 t ADT: 22,663

PA TPK (I-76)

Fair

Over: RAMPS

BEDFORD INTERCHANGE, Bedford, PA

Built 1939 Load: 56.2 t ADT: 30,600

SR 4003

Fair

Over: MILL RUN

ALTOONA BEALE AV 31ST.ST., Blair, PA

Built 1958 Load: 56.2 t ADT: 8,187

SR 4019

Fair

Over: LITTLE JUNIATA RIVER

.25 MI.W.OF BELLWOOD, Blair, PA

Built 1966 Load: 56.2 t ADT: 2,035

29TH STREET

Fair

Over: NORFOLK SOUTHERN

29TH ST.@ BEALE AVENUE, Blair, PA

Built 1990 Load: 56.2 t ADT: 4,698

T-738 (TWP. BR #3

Fair

Over: JOHNSONS CREEK

1.7 MI. SE OF ROME BORO, Bradford, PA

Built 1990 Load: 56.2 t ADT: 50

SR0422 EB

Fair

Over: LAKE ARTHUR

MORAINE EB, Butler, PA

Built 1969 Load: 56.2 t ADT: 7,034

SR3032

Fair

Over: LIT CONNEQUENESSING CR

SHANNON RD, Butler, PA

Built 1984 Load: 56.2 t ADT: 425

VON LUNEN STREET

Fair

Over: SOLOMON RUN

DALE BORO.@ VON LUNEN ST., Cambria, PA

Built 1987 Load: 56.2 t ADT: 550

SR 220-US 220

Fair

Over: BRANCH BALD EAGLE CREEK

2 MI SW PORT MATILDA, Centre, PA

Built 1952 Load: 56.2 t ADT: 1,505

SR 350-PA 350

Fair

Over: BIG FILL RUN

MOUNT PLEASANT, Centre, PA

Built 1985 Load: 56.2 t ADT: 4,968

CHARLESTOWN ROAD

Fair

Over: PICKERING CREEK

NR HORSESHOE TRAIL 14J11, Chester, PA

Built 1969 Load: 56.2 t ADT: 7,407

HIGH POINT ROAD

Fair

Over: MUDDY RUN

GLENVILLE & HOMEVI.3797E1, Chester, PA

Built 1928 Load: 56.2 t ADT: 250

SR 2019

Fair

Over: LAUREL RUN

2 MILE WEST MILL HALL, Clinton, PA

Built 1929 Load: 56.2 t ADT: 360

SR 1011 MYSTIC PK.

Fair

Over: OVER OIL CREEK

STEUBEN TOWNSHIP, Crawford, PA

Built 1963 Load: 56.2 t ADT: 648

SR 1018 GUYS MILL

Fair

Over: OVER WOODCOCK CREEK

RANDOLPH TOWNSHIP, Crawford, PA

Built 1959 Load: 56.2 t ADT: 772

SR 2016 SHOEMAKER

Fair

Over: OVER DECKARDS RUN

WAYNE TOWNSHIP, Crawford, PA

Built 1981 Load: 56.2 t ADT: 188

SR 4003

Fair

Over: LITTLE WICONISCO CREEK

2 MI E KILLINGER, Dauphin, PA

Built 1949 Load: 56.2 t ADT: 223

MID-COUNTY EXWY.NB

Fair

Over: BALTIMORE PIKE

SPRINGFIELD MALL 34G06, Delaware, PA

Built 1989 Load: 56.2 t ADT: 40,282

MID-COUNTY EXWY.SB

Fair

Over: BALTIMORE PIKE

SPRINGFIELD MALL 34G06, Delaware, PA

Built 1989 Load: 56.2 t ADT: 41,753

SR 6 GRAND ARMY HY

Fair

Over: OVER BASKINS RUN

WAYNE TOWNSHIP, Erie, PA

Built 1938 Load: 56.2 t ADT: 6,857

LEHMAN RD

Fair

Over: CONOCOCHEAGUE CREEK

1.2 MI EAST OF SR 995, Franklin, PA

Built 1941 Load: 56.2 t ADT: 300

SR 3008

Fair

Over: PENNA. FORK FISH CREEK

FREEPORT TOWNSHIP, Greene, PA

Built 1932 Load: 56.2 t ADT: 390

SR 3029

Fair

Over: SMITH RUN

.5 MI.N.OF MAPELTON, Huntingdon, PA

Built 1961 Load: 56.2 t ADT: 641

SR0119 NB

Fair

Over: SR0422 EB&WB

SR0119 NB & SR 422 Inter., Indiana, PA

Built 1969 Load: 56.2 t ADT: 3,911

SR0422 WB

Fair

Over: TWO LICK CREEK

TWO LICK WB, Indiana, PA

Built 1970 Load: 56.2 t ADT: 4,099

WASHINGTON STREET

Fair

Over: MARSH RUN

BTW S 4TH & S COULTER AVE, Indiana, PA

Built 1961 Load: 56.2 t ADT: 500

Showing 11,251-11,300 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.