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

RAMP J

Fair

Over: MAINT. YARD GRAND AVE

Neville Island Bridge, Allegheny, PA

Built 1973 Load: 39.9 t ADT: 6,611

SR3021 (T-810)

Fair

Over: SR0028 NB&SB

FURNACE RUN ROAD, Armstrong, PA

Built 1971 Load: 39.9 t ADT: 376

SR4035

Fair

Over: TRIB TO BUFFALO CREEK

YELLOW DOG NO.2, Armstrong, PA

Built 1936 Load: 39.9 t ADT: 274

WOLF RUN RD

Fair

Over: WOLF RUN

0.3 MI. EAST OF SR 4043, Beaver, PA

Built 1966 Load: 39.9 t ADT: 548

RAMP-G RD

Fair

Over: CSX A&S MAIN AV&MAPLE

302002 WEST ALIQ (RAMP G), Beaver, PA

Built 1961 Load: 39.9 t ADT: 2,200

RAMP A

Fair

Over: SR 0051

Rochester-Bridgewater Bri, Beaver, PA

Built 1956 Load: 39.9 t ADT: 4,777

T382 HORSEMEN BRAN

Fair

Over: MILK & WATER CREEK

STECKMAN, Bedford, PA

Built 1952 Load: 39.9 t ADT: 80

SR 2024

Fair

Over: BRUSH CREEK

1 MI.W.OF GAPSVILLE, Bedford, PA

Built 1961 Load: 39.9 t ADT: 307

T654 CREEK ROAD

Fair

Over: WILLS CREEK

2 MI.S.OF HYNDMAN, Bedford, PA

Built 1939 Load: 39.9 t ADT: 291

PA TPK (I-76)

Fair

Over: I-70 & SR 2035(LR 05021)

EAST OF BREEZEWOOD INTG, Bedford, PA

Built 2003 Load: 39.9 t ADT: 20,195

SR 78(LR 285)

Fair

Over: FURNACE CREEK

.75 M.W. LENHARTSVILLE, Berks, PA

Built 1957 Load: 39.9 t ADT: 34,859

SR 1055(N.ELM ST.)

Fair

Over: US 222(LR 157)

N.ELM ST OVER US 222, Berks, PA

Built 1972 Load: 39.9 t ADT: 926

SR 2041(LR 06107)

Fair

Over: OWATIN CREEK

DANIEL BOONE ROAD, Berks, PA

Built 1972 Load: 39.9 t ADT: 2,987

SR 4044 (LR 06127)

Fair

Over: TRIB.TO MAIDEN CREEK

MOUNTAIN RD.& T-766, Berks, PA

Built 1938 Load: 39.9 t ADT: 827

PA TPK (I-76)

Fair

Over: BRANCH CONESTOGA RIVER

NEAR STATE GAME LANDS #52, Berks, PA

Built 1950 Load: 39.9 t ADT: 33,608

HARVEY AVENUE

Fair

Over: ANTIETAM CREEK

NORTH OF ST. LAWRENCE, Berks, PA

Built 1966 Load: 39.9 t ADT: 459

MONTELLO RD.

Fair

Over: CACOOSING CREEK

I MI.E.OF SR 3016, Berks, PA

Built 1993 Load: 39.9 t ADT: 200

SECOND STREET

Fair

Over: Berks Co. Colebro. Spur

E SECOND ST. BRIDGE, Berks, PA

Built 1968 Load: 39.9 t ADT: 200

I-99 / US 220 NBL

Fair

Over: SR 3013

1 MI.S.OF NEWRY, Blair, PA

Built 1987 Load: 39.9 t ADT: 8,640

I-99 / US 220 SBL

Fair

Over: SR 3013

1 MI.S.OF NEWRY, Blair, PA

Built 1987 Load: 39.9 t ADT: 7,809

I-99 / US 220 NBL

Fair

Over: T373 (CATFISH ROAD)

NEWRY BOROUGH, Blair, PA

Built 1987 Load: 39.9 t ADT: 8,640

I-99 / US 220 SBL

Fair

Over: T373 (CATFISH ROAD)

NEWRY BOROUGH, Blair, PA

Built 1987 Load: 39.9 t ADT: 7,809

PA 453

Fair

Over: SR 1015 & L. JUNIATA RIV

1.25 MI.E.OF TYRONE, Blair, PA

Built 1937 Load: 39.9 t ADT: 5,692

SR 3013

Fair

Over: POLECAT RUN

2.25 MI.N.OF CLAYSBURG, Blair, PA

Built 1957 Load: 39.9 t ADT: 5,701

58TH STREET

Fair

Over: BURGOON RUN

58TH.ST. & KISSEL AVE., Blair, PA

Built 1994 Load: 39.9 t ADT: 5,566

TR-365 (TWP.BR. #2

Fair

Over: NORTH BR. TOWANDA CREEK

1.1 M. W OF SAYEES CORNER, Bradford, PA

Built 1974 Load: 39.9 t ADT: 75

TULLYTWN RD;OFF RM

Fair

Over: BRANCH MARTINS CREEK

NORTH TULLYTOWN 43H01, Bucks, PA

Built 1955 Load: 39.9 t ADT: 24,322

TRAFFIC ROUTE 13

Fair

Over: MILL CREEK RD(T323)

NORTH TULLYTOWN 43H01, Bucks, PA

Built 1955 Load: 39.9 t ADT: 23,477

PHILLIPS MILL ROAD

Fair

Over: PRIMROSE CREEK

PHILLIPS MILL 26E06, Bucks, PA

Built 1966 Load: 39.9 t ADT: 1,140

WOODBOURNE ROAD

Fair

Over: INTERSTATE 295

LANGHORNE GARDENS 37G09, Bucks, PA

Built 1972 Load: 39.9 t ADT: 11,202

BUSTLETON PIKE

Fair

Over: BRANCH OF MILL CREEK

.8MILES TO LR-326 35J12, Bucks, PA

Built 1966 Load: 39.9 t ADT: 8,911

BUSTLETON PIKE

Fair

Over: MILL CREEK

.6MILES TO LR-326 35J11, Bucks, PA

Built 1965 Load: 39.9 t ADT: 8,911

QUARRY ROAD (T449)

Fair

Over: RAPP CREEK

0.7 MI NE OF SR 0611, Bucks, PA

Built 1900 Load: 39.9 t ADT: 50

TOWNSHIP ROAD T485

Fair

Over: COOKS CREEK

1.0 MI E OF SR 0212, Bucks, PA

Built 1961 Load: 39.9 t ADT: 350

MT. EYRE ROAD

Fair

Over: DELAWARE CANAL

50 FT EAST OF SR 2071, Bucks, PA

Built 1832 Load: 39.9 t ADT: 660

SR0356

Fair

Over: SARVER RUN

SARVERVILLE NO.1, Butler, PA

Built 1938 Load: 39.9 t ADT: 10,782

T-534 CHAMBERS RD

Fair

Over: S BR SLIPPERY ROCK CR

BTW SR 4010 & T428, Butler, PA

Built 1917 Load: 39.9 t ADT: 50

SR 3039 4TH AVE.

Fair

Over: LEHIGH VALLEY RR RIVER

MINERSVILLE-JOHNSTOWN, Cambria, PA

Built 1914 Load: 39.9 t ADT: 1,026

SR 3041

Fair

Over: LAUREL RUN

3.75 MI.N.OF JOHNSTOWN, Cambria, PA

Built 1962 Load: 39.9 t ADT: 856

SR 4002

Fair

Over: WEST CREEK

BEECHWOOD, Cameron, PA

Built 1986 Load: 39.9 t ADT: 175

PA TPK (I-476)

Fair

Over: LIZARD CREEK

0.5 MI S OF BOWMANSTOWN, Carbon, PA

Built 1957 Load: 39.9 t ADT: 27,609

PA TPK (I-476)

Fair

Over: PARK RD

4 MI S OF POCONO INTERCH., Carbon, PA

Built 1956 Load: 39.9 t ADT: 23,657

SR 550-PA 550

Fair

Over: BUFFALO RUN

BRIARLY, Centre, PA

Built 1977 Load: 39.9 t ADT: 1,116

US 1 BY-PASS (SB)

Fair

Over: E.FRK. BR. WHITE CLAY CR

NEAR AVONDALE; 46D04, Chester, PA

Built 1965 Load: 39.9 t ADT: 12,295

WEST CHESTER PIKE

Fair

Over: EAST BR.CHESTER CREEK

NEAR WEST CHESTER 32K9, Chester, PA

Built 1960 Load: 39.9 t ADT: 27,457

NORTH PENN DRIVE

Fair

Over: WEST CHESTER BY-PASS

NORTH WEST CHESTER 32A07, Chester, PA

Built 1955 Load: 39.9 t ADT: 744

EAST STATE STREET

Fair

Over: EAST BR. RED CLAY CREEK

1 MI. ROUTE 131 SP E 47F5, Chester, PA

Built 1962 Load: 39.9 t ADT: 10,366

COVENTRYVILLE ROAD

Fair

Over: FRENCH CREEK

SOUTH COVENTRY TWP.05J11, Chester, PA

Built 1837 Load: 39.9 t ADT: 1,662

PA TPK (I-76)

Fair

Over: T-396

NEAR TR82 & TR345 JCT, Chester, PA

Built 1950 Load: 39.9 t ADT: 39,934

PA TPK (I-76)

Fair

Over: SR 0029 LR15050

EAST OF DEVAULT, Chester, PA

Built 2002 Load: 39.9 t ADT: 42,480

Showing 7,651-7,700 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.