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 219-US 219

Fair

Over: TOWNSHIP ROAD 369

1 MI N BRADFORD, McKean, PA

Built 1977 Load: 28.1 t ADT: 3,008

SR 2005

Fair

Over: KISHACOQUILLAS CREEK

LEWISTOWN BORO, Mifflin, PA

Built 1973 Load: 28.1 t ADT: 2,653

I-80 WB (LR 1002)

Fair

Over: SR 4004 (LR 45024)

2.4 MI. W. OF PA 715, Monroe, PA

Built 1962 Load: 28.1 t ADT: 18,399

I-80 EB(LR 1002)

Fair

Over: POCONO CREEK

0.8 MI. W. OF PA 715, Monroe, PA

Built 1962 Load: 28.1 t ADT: 22,497

I-80 WB (LR 1002)

Fair

Over: PA 611 RAMP TO I-80 E

SCOT RUN INTERCHANGE, Monroe, PA

Built 1962 Load: 28.1 t ADT: 18,399

I-380 (LR 1002)

Fair

Over: HAWKEY RUN

4.1 MI.N.OF I-80, Monroe, PA

Built 1969 Load: 28.1 t ADT: 22,541

US 209 BUS(LR 167)

Fair

Over: CRAIG MEADOWS

1.MI.S.OF MARSHALLS CREEK, Monroe, PA

Built 1964 Load: 28.1 t ADT: 8,289

TREIBLE RD.

Fair

Over: POHOPOCO CREEK

500 FT FROM INT.PA 115, Monroe, PA

Built 1985 Load: 28.1 t ADT: 75

POTTSTOWN EXPWAY.

Fair

Over: MINGO CREEK

E. ROYERSF 3140G10, Montgomery, PA

Built 1976 Load: 28.1 t ADT: 62,353

BROAD STREET

Fair

Over: BRANCH NESHAMINY CREEK

HATFIELD BORO 3032C6, Montgomery, PA

Built 1850 Load: 28.1 t ADT: 8,173

KENAS ROAD

Fair

Over: LITTLE NESHAMINY CREEK

.8MI.N.ROUTE 463 3145H03, Montgomery, PA

Built 1959 Load: 28.1 t ADT: 3,639

PA TPK (I-276)

Fair

Over: T-357 Narcissa Road

EAST OF NORRISTOWN INTG, Montgomery, PA

Built 1954 Load: 28.1 t ADT: 73,197

SR 2012 (LR 48013)

Fair

Over: C.R.R. OF NJ (REMOVED)

S.25TH ST APPR.GLENDON BR, Northampton, PA

Built 1969 Load: 28.1 t ADT: 6,932

SR 3004(LR 48118)

Fair

Over: I-78(LR 1045)

HICKORY HILL ROAD, Northampton, PA

Built 1987 Load: 28.1 t ADT: 6,742

SILVER CREST ROAD

Fair

Over: E. BR. MONOCACY CREEK

SE OF BATH, Northampton, PA

Built 1973 Load: 28.1 t ADT: 450

LR 1098 RAMP C

Fair

Over: T-454(COUNTRY CLUB RD.)

RAMP 33 SB TO US 22 WEST., Northampton, PA

Built 1972 Load: 28.1 t ADT: 16,034

SR 4022

Fair

Over: OVER BOILE RUN

.5 MI W OF RESLER, Northumberland, PA

Built 1934 Load: 28.1 t ADT: 221

PA 17; SR 0017

Fair

Over: TRIB TO SUSQUEHANNA

1 MI. N. OF LIVERPOOL, Perry, PA

Built 1958 Load: 28.1 t ADT: 1,439

US 22-322 EB

Fair

Over: AMITY RD.

0.8 MI.N.OF AMITY HALL, Perry, PA

Built 1963 Load: 28.1 t ADT: 14,114

US 22; SR 0022 WB

Fair

Over: TWP RD 526

.5 MI N OF AMITY HALL, Perry, PA

Built 1963 Load: 28.1 t ADT: 17,941

PA 850; SR 0850

Fair

Over: MONTOUR CREEK

2 MI. N. LANDISBURG, Perry, PA

Built 1957 Load: 28.1 t ADT: 2,366

SR 3002

Fair

Over: HORSE VALLEY RUN

5 MI.N. NEW GERMANTOWN, Perry, PA

Built 1996 Load: 28.1 t ADT: 53

SR 3002

Fair

Over: HORSE VALLEY RUN

5 MI.N. OF NEW GERMANTWN, Perry, PA

Built 1996 Load: 28.1 t ADT: 53

T-344

Fair

Over: DINGMANS CREEK

CHILDS PARK DELAWARE TWP, Pike, PA

Built 1977 Load: 28.1 t ADT: 300

SR 872-PA 872

Fair

Over: BAILEY RUN

1 MI SW WHARTON, Potter, PA

Built 1971 Load: 28.1 t ADT: 672

I-81 SB (LR 1005)

Fair

Over: PA54(LR290)& I-81 RP B F

EXIT 131(37) S.B., Schuylkill, PA

Built 1967 Load: 28.1 t ADT: 11,139

US 209 (LR 162)

Fair

Over: READING & NORTHERN RR

MAUCH CHUNK STREET, Schuylkill, PA

Built 1926 Load: 28.1 t ADT: 7,536

SR 3009(LR.53005)

Fair

Over: LITTLE SWATARA CREEK

.4 M.N.OF PA 895, Schuylkill, PA

Built 1934 Load: 28.1 t ADT: 751

GREEN TREE DR.

Fair

Over: MAHANNON CREEK

INTERS OF T695 & T964, Schuylkill, PA

Built 1981 Load: 28.1 t ADT: 100

T-536 Roedersville

Fair

Over: UPPER SWATARA CR

0.20 MI NORTH OF SR 3002, Schuylkill, PA

Built 1962 Load: 28.1 t ADT: 50

SR 235

Fair

Over: OVER BEAVER CREEK

1 MI N OF BEAVER SPRINGS, Snyder, PA

Built 1930 Load: 28.1 t ADT: 1,095

GAME LANDS RD

Fair

Over: OVER SWIFT RUN

2 MI N OF BEAVER SPRINGS, Snyder, PA

Built 1939 Load: 28.1 t ADT: 479

US 219 SBL

Fair

Over: CSX RAILROAD

0.2 MILE NORTH OF TR 281, Somerset, PA

Built 1973 Load: 28.1 t ADT: 5,793

US 219 NBL

Fair

Over: US 30

OVER US 30, Somerset, PA

Built 1968 Load: 28.1 t ADT: 6,196

US 219 SBL

Fair

Over: US 30

OVER US 30, Somerset, PA

Built 1968 Load: 28.1 t ADT: 6,193

US 219 NBL

Fair

Over: SR 4016

OVER SR 4016, Somerset, PA

Built 1969 Load: 28.1 t ADT: 5,776

US 219 SBL

Fair

Over: SR 4016

OVER SR 4016, Somerset, PA

Built 1969 Load: 28.1 t ADT: 5,704

PA 403

Fair

Over: STONYCREEK RIVER

KANTNER, Somerset, PA

Built 1971 Load: 28.1 t ADT: 1,033

SR 2017

Fair

Over: PANTHER RUN

1 MI.NW.OF JOHNSBURG, Somerset, PA

Built 1938 Load: 28.1 t ADT: 51

T718 MILLER RUN RD

Fair

Over: MILLER RUN

1 MI.S.OF SANDPATCH, Somerset, PA

Built 1963 Load: 28.1 t ADT: 33

SR 4023

Fair

Over: QUEMAHONING CREEK

1.6 M.S.JENNER CROSSROADS, Somerset, PA

Built 1971 Load: 28.1 t ADT: 1,721

CAMP LOOP #1

Fair

Over: LAUREL HILL CREEK TRIB

1/2 MI NW OF SR 3029, Somerset, PA

Built 1973 Load: 28.1 t ADT: 50

SR 42

Fair

Over: OVER TROUT RUN

1 MI N OF MUNCY VALLEY, Sullivan, PA

Built 1931 Load: 28.1 t ADT: 949

SR 4008

Fair

Over: OVER W BR OF ELK CREEK

5 MI N OF ESTELLA, Sullivan, PA

Built 1950 Load: 28.1 t ADT: 156

SR 0267 TR 267

Fair

Over: MIDDLE BR WYALUSING CR

FORST LK TP 2.8M S SR4014, Susquehanna, PA

Built 1947 Load: 28.1 t ADT: 1,508

SR 4002

Fair

Over: SNAKE CREEK

LIBERTY TWP 810 E TR 29, Susquehanna, PA

Built 1969 Load: 28.1 t ADT: 195

QUICKS HILL ROAD

Fair

Over: HOPBOTTOM CREEK

1.1 MILE SE OF BROOKLYN, Susquehanna, PA

Built 1969 Load: 28.1 t ADT: 100

T460 BARNEY HOLLOW

Fair

Over: E.BRANCH TUNKHANNOCK CR.

2 MI SW OF LENOXVILLE, Susquehanna, PA

Built 1900 Load: 28.1 t ADT: 75

SR 49

Fair

Over: OVER COWANESQUE RIVER

0.5 MI E OF ELKLAND, Tioga, PA

Built 1936 Load: 28.1 t ADT: 4,020

SR 2017

Fair

Over: OVER TIOGA RIVER

BORO OF BLOSSBURG, Tioga, PA

Built 1963 Load: 28.1 t ADT: 2,724

Showing 2,401-2,450 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.