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

HARKENS MILL RD

Fair

Over: BRUSH CREEK BRANCH

004045 T-549 NEW SEW TWP, Beaver, PA

Built 1953 Load: 32.7 t ADT: 105

MERCHANT ST

Fair

Over: BIG SEWICKLEY CREEK

402001 AMBR-LEETSDALELINE, Beaver, PA

Built 1827 Load: 32.7 t ADT: 2,000

NICHOL ROAD

Fair

Over: TRAVERSE CREEK

2 MI EAST OF SR 168, Beaver, PA

Built 1977 Load: 32.7 t ADT: 2

US 30 (EBL)

Fair

Over: TR.RAYSTWN.BR.JUNIATA R.

1.3 MILE WEST OF I-70, Bedford, PA

Built 1964 Load: 32.7 t ADT: 4,792

PA 96

Fair

Over: TRIB DUNNING CREEK

RYOT, Bedford, PA

Built 1958 Load: 32.7 t ADT: 1,639

T494 COUNTRY RIDGE

Fair

Over: I-99 / US 220

1.9 MI. NORTH OF TURNPIKE, Bedford, PA

Built 1971 Load: 32.7 t ADT: 1,128

PA 326

Fair

Over: BR.TOWN CREEK

3.1 MILE NORTH OF MD LINE, Bedford, PA

Built 1949 Load: 32.7 t ADT: 234

SR 2024

Fair

Over: BRUSH CREEK

GAPSVILLE, Bedford, PA

Built 1963 Load: 32.7 t ADT: 307

PA TPK (I-76)

Fair

Over: Trib to Rays Br Juniata

NEAR TR30 &TR31 JUNCTION, Bedford, PA

Built 1939 Load: 32.7 t ADT: 30,600

PA TPK (I-76)

Fair

Over: TR RAYSTOWN BR

NEAR EVERETT MAINT.SHED, Bedford, PA

Built 1939 Load: 32.7 t ADT: 33,684

PA TPK (I-76)

Fair

Over: CLEAR CREEK

NEAR EARLSTON, Bedford, PA

Built 1939 Load: 32.7 t ADT: 33,684

PA TPK (I-76)

Fair

Over: PA 26 (LR 286)

NEAR EARLSTON, Bedford, PA

Built 1939 Load: 32.7 t ADT: 33,684

PA TPK (I-76)

Fair

Over: GREYS RUN

EAST OF EARLSTON, Bedford, PA

Built 1939 Load: 32.7 t ADT: 33,684

MAIN RD BRIDGE #1

Fair

Over: SHAWNEE LAKE

SHAWNEE LAKE STATE PARK, Bedford, PA

Built 1952 Load: 32.7 t ADT: 1,000

MAIN RD BRIDGE #2

Fair

Over: SHAWNEE LAKE

SHAWNEE STATE PARK, Bedford, PA

Built 1952 Load: 32.7 t ADT: 1,000

PA 23 (LR412)

Fair

Over: CONESTOGA CREEK

MAIN ST.@ MAST RD., Berks, PA

Built 1956 Load: 32.7 t ADT: 10,955

SR 73(LR 197)

Fair

Over: TRIB.MANATAWNY CREEK

SHANESVILLE, Berks, PA

Built 1949 Load: 32.7 t ADT: 7,918

SR 2082(LR 328)

Fair

Over: HAY CREEK

1.5MI S.OF SCARLETS MILL, Berks, PA

Built 1995 Load: 32.7 t ADT: 1,245

PA 419 (LR310)

Fair

Over: LITTLE SWATARA CREEK

2 MI.N.OF REHRERSBURG, Berks, PA

Built 1928 Load: 32.7 t ADT: 2,553

US 422(LR 149)

Fair

Over: LITTLE CACOOSING CREEK

EAST OF WERNERSVILLE, Berks, PA

Built 1947 Load: 32.7 t ADT: 16,291

PA 724 (LR 147)

Fair

Over: SIX PENNY CREEK

2 MI EAST OF BIRDSBORO, Berks, PA

Built 1950 Load: 32.7 t ADT: 5,275

SR 1010(LR 06117)

Fair

Over: WILLOW CREEK

W.MAIN ST. FLEETWOOD, Berks, PA

Built 1915 Load: 32.7 t ADT: 13,632

SR 1017(LR 06172)

Fair

Over: ONTELAUNEE CREEK

VILLAGE OF TREXLER, Berks, PA

Built 1841 Load: 32.7 t ADT: 254

SR 1018(LR 06132)

Fair

Over: STONY RUN

STONY RUN BRIDGE, Berks, PA

Built 1926 Load: 32.7 t ADT: 337

SR 1022(APPL. 1)

Fair

Over: PERKIOMEN CREEK

TOLLGATE ROAD, Berks, PA

Built 1909 Load: 32.7 t ADT: 1,581

SR 1029(LR 06141)

Fair

Over: SACONY CREEK

MAIN STREET-KUTZTOWN, Berks, PA

Built 1911 Load: 32.7 t ADT: 7,077

SR 2003 (LR 06220)

Fair

Over: NORFOLK SOUTHERN

4TH ST (ONE-WAY SB), Berks, PA

Built 1916 Load: 32.7 t ADT: 6,399

SR 2011 (LR 06143)

Fair

Over: RR BED (TRACKS REMOVED)

0.3 MI.SW OF LAURELDALE, Berks, PA

Built 1978 Load: 32.7 t ADT: 9,406

SR 2040(LR 284)

Fair

Over: IRONSTONE CREEK

IRONSTONE BR.FARMINGTN AV, Berks, PA

Built 1907 Load: 32.7 t ADT: 4,418

SR 2043(LR 06107)

Fair

Over: MONOCACY CREEK

OLD TULPEHOCKEN ROAD, Berks, PA

Built 1908 Load: 32.7 t ADT: 616

SR 3024 (LR 06082)

Fair

Over: I-176 (LR1011)

MAPLE GROVE ROAD, Berks, PA

Built 1962 Load: 32.7 t ADT: 2,060

SR 4010(LR 06020)

Fair

Over: MILL CREEK

CHRISTMAS VILLAGE ROAD, Berks, PA

Built 1950 Load: 32.7 t ADT: 919

SR 4010(LR 06020)

Fair

Over: TULPEHOCKEN CREEK

CHRISTMAS VILLAGE ROAD, Berks, PA

Built 1976 Load: 32.7 t ADT: 1,366

PA TPK (I-76)

Fair

Over: LR274 CONEST.CR.

EAST OF MORGANTOWN, Berks, PA

Built 1950 Load: 32.7 t ADT: 39,934

MORGAN WAY

Fair

Over: CONESTOGA CREEK

INTERSECTION WITH PA 10, Berks, PA

Built 1952 Load: 32.7 t ADT: 1,000

BUTTER LANE

Fair

Over: ANTIETAM CREEK

JCT. HARVEY A.&BUTTERLANE, Berks, PA

Built 1939 Load: 32.7 t ADT: 350

SWEITZER RD

Fair

Over: CACOOSING CREEK

NEAR VAN REED ROAD, Berks, PA

Built 1972 Load: 32.7 t ADT: 488

BOYER ROAD

Fair

Over: BIEBER CREEK

NEAR LOBACHSVILLE, Berks, PA

Built 1960 Load: 32.7 t ADT: 130

SNYDER ROAD

Fair

Over: LITTLE MANATAWNY CREEK

S. OF 73 AT PLEASANTVILLE, Berks, PA

Built 1973 Load: 32.7 t ADT: 150

CONRAD ROAD

Fair

Over: BIEBER CREEK

WEST OF FORGEDALE ROAD, Berks, PA

Built 1976 Load: 32.7 t ADT: 100

SPORTSMAN ROAD

Fair

Over: HOSPITAL CREEK

.5 MI S OF US 422, Berks, PA

Built 1964 Load: 32.7 t ADT: 1,090

ACADEMY ROAD

Fair

Over: HASSLER RUN

WEST OF PINE ROAD, Berks, PA

Built 1963 Load: 32.7 t ADT: 75

HEX HIGHWAY

Fair

Over: MILL CREEK

1.0 MI. WEST OF JALAPPA, Berks, PA

Built 1932 Load: 32.7 t ADT: 2,284

OLD MILL RD

Fair

Over: WYOMISSING CREEK

WYOMISSING HS & POOL, Berks, PA

Built 1959 Load: 32.7 t ADT: 2,000

PA 36

Fair

Over: BRUSH RUN

HOLLIDAYSBURG BORO LINE, Blair, PA

Built 1956 Load: 32.7 t ADT: 13,848

I-99 / US 220 NBL

Fair

Over: SR 8004 (22 EB TO 99 NB)

.5 MI.N.OF DUNCANSVILLE, Blair, PA

Built 1983 Load: 32.7 t ADT: 8,640

I-99 / US 220 SBL

Fair

Over: SR 8004 (22 EB TO 99 NB)

.5 MI.N.OF DUNCANSVILLE, Blair, PA

Built 1983 Load: 32.7 t ADT: 14,256

I-99 / US 220 NBL

Fair

Over: NORFOLK BEAVERDAM BR JUN

1 MI W OF HOLLIDAYSBURG, Blair, PA

Built 1983 Load: 32.7 t ADT: 14,067

I-99 / US 220 SBL

Fair

Over: NORFOLK BEAVERDAM BR JUN

1 MI.W.OF HOLLIDAYSBURG, Blair, PA

Built 1983 Load: 32.7 t ADT: 14,256

PA 866

Fair

Over: POVERTY HOLLOW RUN

VILLAGE OF CLAPPERTOWN, Blair, PA

Built 1950 Load: 32.7 t ADT: 1,607

Showing 4,051-4,100 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.