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 80 EB

Fair

Over: OVER HARTHEGIG RUN

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1965 Load: 64.4 t ADT: 11,198

CHERRY LANE

Fair

Over: SEPTA LEASED TO PN

1MI.SE.BORO HALL 3031-K2, Montgomery, PA

Built 1910 Load: 64.4 t ADT: 300

SR 4004

Fair

Over: GRAVEL RUN

6 MI.W.OF RIVERSIDE, Northumberland, PA

Built 1939 Load: 64.4 t ADT: 367

N VINE ST

Fair

Over: SHAMOKIN CREEK

MOUNT CARMEL BORO, Northumberland, PA

Built 2002 Load: 64.4 t ADT: 1,550

SR 1011

Fair

Over: WELLS CREEK

LISTIE, Somerset, PA

Built 1939 Load: 64.4 t ADT: 333

SR 2027

Fair

Over: BUFFALO CREEK

1.5 MI.SW.OF BERLIN, Somerset, PA

Built 1941 Load: 64.4 t ADT: 296

SR 8 PITTSBURGH RD

Fair

Over: OVER SR 80 EB/WB

BARKEYVILLE BOROUGH, Venango, PA

Built 1965 Load: 64.4 t ADT: 6,346

SR 62 OIL CITY RD.

Fair

Over: OVER HORSE CREEK

CRANBERRY TOWNSHIP, Venango, PA

Built 1988 Load: 64.4 t ADT: 969

SR 0993

Fair

Over: BRANCH OF BRUSH CREEK

MANOR BOROUGH, Westmoreland, PA

Built 1992 Load: 64.4 t ADT: 5,692

I-83; SR 0083

Fair

Over: PA 382; old trail rd

EXIT 32, York, PA

Built 1954 Load: 64.4 t ADT: 47,654

I-83; SR 0083

Fair

Over: PA TURNPIKE RAMP E

I-83 & TNPK RAMP EXIT-39, York, PA

Built 1950 Load: 64.4 t ADT: 59,616

PA 114; Lewisberry

Fair

Over: I-83; SR 0083

I-83 EXIT 39A, York, PA

Built 1958 Load: 64.4 t ADT: 6,540

CITY LINE AVE.S.B.

Fair

Over: RAMPS B AND C

INT.WEST OF I-76 3479G09, Philadelphia, PA

Built 1953 Load: 64.4 t ADT: 36,519

STATION ST

Fair

Over: CRENNELL AVE;BY PAT BSWY

421002 NEXT TO PAT BUSWAY, Allegheny, PA

Built 1997 Load: 64.4 t ADT: 200

T-307 GATESBURG RD

Fair

Over: HALFMOON CREEK

1.1 MI. WEST OF GATESBURG, Centre, PA

Built 1999 Load: 64.4 t ADT: 250

SR 3005 PLEASANT R

Fair

Over: OVER SILL RUN

PLEASANT TOWNSHIP, Warren, PA

Built 1910 Load: 64.4 t ADT: 419

REGENT STREET

Fair

Over: SOLOMON CREEK

ADJACENT TO BROOK STREET, Luzerne, PA

Built 2008 Load: 64.4 t ADT: 328

MILLERS RUN RD

Fair

Over: MILLERS RUN

200 E OF MORGAN HILL RD., Allegheny, PA

Built 1928 Load: 65.3 t ADT: 5,175

SEVENTH AV

Fair

Over: PAT LRT SPUR LINE

P50010 PGH - 7TH AVE, Allegheny, PA

Built 1925 Load: 65.3 t ADT: 12,000

RAMP N

Fair

Over: RPS A&B (F&G) MON

Fort Pitt Bridge, Allegheny, PA

Built 1959 Load: 65.3 t ADT: 1,894

T-775(GUN CLUB RD)

Fair

Over: MILL CREEK

DIETRICHS MILL BRIDGE, Berks, PA

Built 1986 Load: 65.3 t ADT: 326

SR 4002

Fair

Over: SUGAR RUN

6 MI.W.OF ALTOONA, Blair, PA

Built 1932 Load: 65.3 t ADT: 1,407

SR0079 SB

Fair

Over: T-370 STANFORD RD

PFEIFER SB, Butler, PA

Built 1963 Load: 65.3 t ADT: 12,696

T-922 HATCHTOWN RD

Fair

Over: OVER FIVE MILE CREEK

3 MI. S.E. SPARTANSBURG, Crawford, PA

Built 1950 Load: 65.3 t ADT: 250

SR 3012

Fair

Over: YORK RUN

GEORGES TOWNSHIP, Fayette, PA

Built 1965 Load: 65.3 t ADT: 1,941

SR 3022

Fair

Over: Jacobs Run

CENTER TOWNSHIP, Greene, PA

Built 1942 Load: 65.3 t ADT: 119

SR 2014 Furnace rd

Fair

Over: TRIB MILL CREEK

SHERIDAN, Lebanon, PA

Built 1937 Load: 65.3 t ADT: 420

SR 29(LR 557)

Fair

Over: LITTLE LEHIGH CREEK

AT INTERSECTION SR 2012, Lehigh, PA

Built 1958 Load: 65.3 t ADT: 19,257

LR 39088 SR 4001

Fair

Over: PA TPK (I-476)

WEST OF ALLENTOWN, Lehigh, PA

Built 1955 Load: 65.3 t ADT: 4,684

SR 4020 LR 39116

Fair

Over: PA TPK (I-476)

2 MI SOUTH OF SLATINGTON, Lehigh, PA

Built 1956 Load: 65.3 t ADT: 808

SR 2003

Fair

Over: OVER SPRING CREEK

2 MI NE OF ELIMSPORT, Lycoming, PA

Built 1915 Load: 65.3 t ADT: 92

SR 2067

Fair

Over: BROAD RUN

5 MI E OF CLARKSTOWN, Lycoming, PA

Built 1930 Load: 65.3 t ADT: 463

W LINE RD

Fair

Over: OVER PINE RUN

5MI N.OF JERSEY SHORE, Lycoming, PA

Built 1955 Load: 65.3 t ADT: 168

T-711

Fair

Over: STRODES RUN

200FT SOUTH OF T-355, Mifflin, PA

Built 1936 Load: 65.3 t ADT: 250

SR 1003

Fair

Over: CALIFORNIA CREEK

2 MI S ULYSSES, Potter, PA

Built 1962 Load: 65.3 t ADT: 179

PA 183 (LR 417)

Fair

Over: W. BR. SCHUYLKILL RIVER

CRESSONA POTTSVILLE ST., Schuylkill, PA

Built 1987 Load: 65.3 t ADT: 13,299

STEELEY RD. T548

Fair

Over: S BR OF MIDDLE CREEK

.5 MI.N OF MCCLURE, Snyder, PA

Built 1930 Load: 65.3 t ADT: 75

PA 56

Fair

Over: RUMMEL RUN

1 MI.E.OF WINDBER, Somerset, PA

Built 1959 Load: 65.3 t ADT: 4,460

SR 4001 WARNER RD.

Fair

Over: OVER HARE CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1981 Load: 65.3 t ADT: 691

PA TPK (I-76)

Fair

Over: T-755 Pennsylvania Ave.

WEST OF IRWIN INTERCHANGE, Westmoreland, PA

Built 1952 Load: 65.3 t ADT: 46,261

SR 0711

Fair

Over: PA TPK (I-76)

DONEGAL, Westmoreland, PA

Built 1939 Load: 65.3 t ADT: 3,242

INTERSTATE 95 (NB)

Fair

Over: RAMPS SD AND DN

.3MI.S.WALNUT STR.3590G10, Philadelphia, PA

Built 1990 Load: 65.3 t ADT: 51,098

12TH STREET

Fair

Over: VINE STREET EXPRESSWAY

VINE STREET EXWY 3590E07, Philadelphia, PA

Built 1990 Load: 65.3 t ADT: 5,770

MAUGERS MILL ROAD

Fair

Over: SPROGELS RUN

WEST OF 663 11J5/3026K6, Montgomery, PA

Built 2000 Load: 65.3 t ADT: 3,505

RAMP C

Fair

Over: NSRC; MLK DRIVE

1MI.S.CITY LINE 3479J10, Philadelphia, PA

Built 1960 Load: 65.3 t ADT: 27,443

MOORE AVENUE

Fair

Over: NORFOLK SOUTHERN RR

275 S OF WASHINGTON AVE, Westmoreland, PA

Built 1989 Load: 65.3 t ADT: 200

SR 0050

Fair

Over: CHARTIERS CR FLOOD CHANN

300 S. THOMS RUN RD., Allegheny, PA

Built 1978 Load: 66.2 t ADT: 22,110

GREENSBURG PIKE

Fair

Over: SR 0376 EB WB

GREENSBURG PIKE OVER I376, Allegheny, PA

Built 1955 Load: 66.2 t ADT: 7,723

HIGHLAND RD

Fair

Over: PAT TRANSIT RR

P50006 HIGHLAND RD-PT08, Allegheny, PA

Built 1977 Load: 66.2 t ADT: 10,600

RAMP C

Fair

Over: SAW MILL RUN

BEHIND FORT PITT GARAGE, Allegheny, PA

Built 1953 Load: 66.2 t ADT: 16,168

Showing 11,801-11,850 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.