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

T-936; BEAVER LANE

Fair

Over: STONEY RUN

NWBRY/WRGTN; STONEY RUN, York, PA

Built 1950 Load: 19.1 t ADT: 15

DELAWARE EXPWAY.

Fair

Over: MIFFLIN ST TO CHRISTIAN

QUEEN VILLAGE 3700-G02, Philadelphia, PA

Built 1979 Load: 19.1 t ADT: 96,477

Edison Avenue

Fair

Over: Branch of Poquessing Crk

W. of Trevose Avenue, Philadelphia, PA

Built 1905 Load: 19.1 t ADT: 300

RAMPKK(SB - OFF)

Fair

Over: I-95;INDUSTRIAL HWY;RAMP

N.HIGH SPEED LINE 3698K10, Philadelphia, PA

Built 1983 Load: 19.1 t ADT: 3,597

T-436 BROWN ROAD

Fair

Over: CUSH CREEK

BTW T939 & SR0286, Indiana, PA

Built 2000 Load: 19.1 t ADT: 15

T-589 SHERKSCHURCH

Fair

Over: RACCOON CREEK

SHERKS CHURCH ROAD T-589, Lebanon, PA

Built 1940 Load: 19.1 t ADT: 50

HUNTS RUN RD

Fair

Over: WHITEHEAD RUN

2.4 MI NE OF SR 120, Cameron, PA

Built 1980 Load: 19.1 t ADT: 25

HOLCOMB HOLLOW RD

Fair

Over: SHAYTOWN BRANCH

315 FT SW OF SHAYTOWN RD, Potter, PA

Built 2010 Load: 19.1 t ADT: 25

T-777 WINDSOR COUR

Fair

Over: TRIB TO BRUSH CREEK

0.1 MI N of SR 3024, Butler, PA

Built 1901 Load: 19.1 t ADT: 100

T-544 STONEY RUN R

Fair

Over: TRIB. TO STONEY RUN

0.4 MI E OF SR 308, Butler, PA

Built 1999 Load: 19.1 t ADT: 100

T-906 HERITAGE CRE

Fair

Over: KAUFMAN RUN

0.2 MI N of SR 0228, Butler, PA

Built 2004 Load: 19.1 t ADT: 100

MARS CRIDER ROAD

Fair

Over: TRIBUTARY TO KAUFMAN RUN

0.7 MI E of SR 3021, Butler, PA

Built 1996 Load: 19.1 t ADT: 100

Grant Ave Ext

Fair

Over: Thompson Run

At Int. Lwr Bull Run Rd, Allegheny, PA

Built 1985 Load: 19.1 t ADT: 750

Beagle Drive

Fair

Over: Alsip Run

217 FT W of SR0088, Allegheny, PA

Built 1970 Load: 19.1 t ADT: 200

Community Center D

Fair

Over: W. Branch of Deer Creek

50 S of Int w/ SR910, Allegheny, PA

Built 2004 Load: 19.1 t ADT: 1,000

ASTON MTN. RD.

Fair

Over: MONUMENT CREEK

.24M S SR 502, Lackawanna, PA

Built 1960 Load: 19.1 t ADT: 150

T-639 ROOFNER ROAD

Fair

Over: MILL RUN

1 Mi East of SR 422, Armstrong, PA

Built 1950 Load: 19.1 t ADT: 50

T-336 L Y Road

Fair

Over: LITTLE YELLOW CREEK

280 East of I-79, Butler, PA

Built 1980 Load: 19.1 t ADT: 50

T-525 Deer Hollow

Fair

Over: SLOAN RUN

1.3 Mi W of SR 66, Clarion, PA

Built 1982 Load: 19.1 t ADT: 50

T-602 SENIOR RD

Fair

Over: FALLS CREEK

300 SW of SR 830, Jefferson, PA

Built 1980 Load: 19.1 t ADT: 50

I-176 NB (LR 1011)

Fair

Over: PA 568 & ALLEGHENY CR.

SO. OF PA 568 INTERCHANGE, Berks, PA

Built 1962 Load: 19.4 t ADT: 9,452

I-176 SB (LR 1011)

Fair

Over: PA 568 & ALLEGHENY CR

SO. OF PA 568 INTERCHANGE, Berks, PA

Built 1962 Load: 19.4 t ADT: 8,806

Smithfield Street

Fair

Over: MONONGAHELA RIVER CSX RR

Smithfield Street Bridge, Allegheny, PA

Built 1883 Load: 20.0 t ADT: 6,901

BLOOMFIELD BR

Fair

Over: N-S RR CSX RR E BSWY PL

010 Bloomfield Bridge, Allegheny, PA

Built 1986 Load: 20.0 t ADT: 30,000

T-792 LOWER MUDLIC

Fair

Over: PINE RUN

500 FEET NORTH OF SR-1010, Armstrong, PA

Built 1910 Load: 20.0 t ADT: 50

US 30 (EBL)

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

0.6 MILE WEST OF TR 326, Bedford, PA

Built 1970 Load: 20.0 t ADT: 7,564

US 30 (WBL)

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

0.6 MILE WEST OF TR 326, Bedford, PA

Built 1970 Load: 20.0 t ADT: 7,783

T654 CREEK ROAD

Fair

Over: WILLS CREEK

2 MILE N.OF COOKS MILLS, Bedford, PA

Built 1961 Load: 20.0 t ADT: 291

SR 3006

Fair

Over: WOLF CAMP RUN

2.5 MI.W.OF MADLEY, Bedford, PA

Built 1965 Load: 20.0 t ADT: 144

T-446 BUTLER ROAD

Fair

Over: FRENCH RUN

2 MI.W.OF GRACEVILLE, Bedford, PA

Built 1960 Load: 20.0 t ADT: 25

SR 73 (LR 06121)

Fair

Over: WILLOW CREEK

1 MI.N.OF BLANDON, Berks, PA

Built 1927 Load: 20.0 t ADT: 5,765

SR 2042 (LR 06104)

Fair

Over: IRONSTONE CREEK

GRESHVILLE ROAD, Berks, PA

Built 1912 Load: 20.0 t ADT: 1,337

T-858 BENNIC0FF RD

Fair

Over: MILL CREEK

800NW OF SR1021, Berks, PA

Built 1992 Load: 20.0 t ADT: 10

PA 453

Fair

Over: SINKING RUN

4 MI.E.OF TYRONE, Blair, PA

Built 1962 Load: 20.0 t ADT: 5,764

SR 4003

Fair

Over: NORFOLK SOUTHERN

ALTOONA NORTH LOGAN BLVD, Blair, PA

Built 1959 Load: 20.0 t ADT: 14,138

T-378 West Loop RD

Fair

Over: OLDTOWN RUN

3 MI.SE.OF HOLLIDAYSBURG, Blair, PA

Built 1956 Load: 20.0 t ADT: 674

LINCOLN HIGHWAY

Fair

Over: ROCKHILL DRIVE

NESHAMINY MALL 41F04, Bucks, PA

Built 1965 Load: 20.0 t ADT: 102,483

LANGHORNE WEST ACC

Fair

Over: NEW US 1 BY-PASS

.5MI.SOUTH TR-413 37B12, Bucks, PA

Built 1965 Load: 20.0 t ADT: 3,483

WASHINGTON CROSSIN

Fair

Over: PENNSYLVA CANAL/ 3038-K4

WASHINGTON CROSS. 32H03, Bucks, PA

Built 1932 Load: 20.0 t ADT: 5,064

BROWNSVILLE ROAD

Fair

Over: NESHAMINY CREEK

1.5MI.W.LANGHORNE 36H12, Bucks, PA

Built 1956 Load: 20.0 t ADT: 9,231

LIMEKILN ROAD

Fair

Over: PINE RUN

1.3 MI W OF SR 611, Bucks, PA

Built 1977 Load: 20.0 t ADT: 500

UPPER STATE ROAD

Fair

Over: NESHAMINY CREEK

2.0 MI NE OF SR152, Bucks, PA

Built 1973 Load: 20.0 t ADT: 5,000

FAIRHILL ROAD

Fair

Over: SELLERSVILLE BYPASS

EAST OF SOUDERTON 3032-C1, Bucks, PA

Built 1967 Load: 20.0 t ADT: 1,625

CALDWELL AVENUE

Fair

Over: TROUT RUN

PORTAGE BOROUGH (WEST), Cambria, PA

Built 1992 Load: 20.0 t ADT: 615

I-80 WB (LR 1009)

Fair

Over: SR 1005 LEHIGH R RN RR

EXIT 273 (40) WHITE HAVEN, Carbon, PA

Built 1965 Load: 20.0 t ADT: 11,212

BRADFORD ROAD

Fair

Over: VALLEY CREEK

3MI.W.RT 252 3365-F9, Chester, PA

Built 1985 Load: 20.0 t ADT: 1,400

T-852 WHITE OAK DR

Fair

Over: TOBY CREEK

1.5 mi W int w/ SR1005, Clarion, PA

Built 1941 Load: 20.0 t ADT: 320

SR 0080 EB

Fair

Over: OVER(S-C)ER&LACKRR &SR11

2 MILES W OF BERWICK, Columbia, PA

Built 1964 Load: 20.0 t ADT: 12,623

I 80 WBL

Fair

Over: OVER SEDA COG RR & SR 11

2 MILES W OF BERWICK, Columbia, PA

Built 1964 Load: 20.0 t ADT: 12,988

SR 1003

Fair

Over: WEST BRANCH BRIAR CREEK

2 MI W OF FOWLERSVILLE, Columbia, PA

Built 1963 Load: 20.0 t ADT: 641

Showing 651-700 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.