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

CROOKED LANE

Fair

Over: P&W RR (SEPTA)

HUGHES PARK 3367E08, Montgomery, PA

Built 1911 Load: 41.7 t ADT: 2,553

RIDGE PIKE

Fair

Over: TOWNSHIP LINE ROAD

LIMERICK 3139-J02, Montgomery, PA

Built 1965 Load: 41.7 t ADT: 5,025

LINE LEXINGTON-RD

Fair

Over: NESHAMINY-CREEK

LINE LEXINGTON 3032-G7, Montgomery, PA

Built 1930 Load: 41.7 t ADT: 4,445

VINE STREET

Fair

Over: W. BRANCH NESHAMINY CRK

VINE ST. TO LR646 3023-D6, Montgomery, PA

Built 1986 Load: 41.7 t ADT: 3,770

DEEP CREEK ROAD

Fair

Over: DEEP CREEK

1.7 M S PA663 ADC 2916-H6, Montgomery, PA

Built 1932 Load: 41.7 t ADT: 410

PA TPK (I-276)

Fair

Over: T-694

WEST OF NORRISTOWN INTG, Montgomery, PA

Built 2006 Load: 41.7 t ADT: 55,966

PA TPK (RAMP R)

Fair

Over: SR 3053 (RAMP K)

MID-CTY.INTERCH. 29H09, Montgomery, PA

Built 1991 Load: 41.7 t ADT: 72,309

PA TPK (I-276)

Fair

Over: SEPTA RR.

EAST OF WILLOW GROVE INTG, Montgomery, PA

Built 1954 Load: 41.7 t ADT: 85,801

I-78 WB (LR 1045)

Fair

Over: PA 378 (LR 297)

I-78 WB OVER PA. 378, Northampton, PA

Built 1989 Load: 41.7 t ADT: 27,603

I-78EB(LR 1045)

Fair

Over: PA 412(LR 530)& RAMP

EXIT 21(67)PA.412, Northampton, PA

Built 1988 Load: 41.7 t ADT: 27,801

SR 2004(LR 48094)

Fair

Over: SILVER CREEK

RESERVOIR RD.-HELLERTOWN, Northampton, PA

Built 1964 Load: 41.7 t ADT: 1,342

SR 2034 (LR 48123)

Fair

Over: BUSHKILL CREEK

BUSHKILL PARK ROAD, Northampton, PA

Built 1985 Load: 41.7 t ADT: 1,727

SR 3011 (LR 48046)

Fair

Over: MONOCACY CREEK

CENTER STREET @ CITY LINE, Northampton, PA

Built 1957 Load: 41.7 t ADT: 19,904

JACOBY CREEK ROAD

Fair

Over: JACOBY CREEK

NW OF PA 611, Northampton, PA

Built 1984 Load: 41.7 t ADT: 150

SR 2015

Fair

Over: SHAM CREEK & SEDA.COG.RR

1 MI N OF SHAMOKIN, Northumberland, PA

Built 1962 Load: 41.7 t ADT: 3,194

SR 3004

Fair

Over: OVER ZERBE RUN

VILLAGE OF RAKER, Northumberland, PA

Built 1950 Load: 41.7 t ADT: 213

TURBOT AVENUE

Fair

Over: LIMESTONE RUN

MILTON BORO, Northumberland, PA

Built 1991 Load: 41.7 t ADT: 4,350

SR 244-PA 244

Fair

Over: CRYDER CREEK

GENESEE, Potter, PA

Built 1949 Load: 41.7 t ADT: 628

I-81 SB (LR 1005)

Fair

Over: READING & NORTHERN RR

0.75 MI.N.OF EXIT 107(33), Schuylkill, PA

Built 1969 Load: 41.7 t ADT: 10,106

US 209 (LR 199)

Fair

Over: GOODSPRING CREEK

TREMONT BORO, Schuylkill, PA

Built 1968 Load: 41.7 t ADT: 1,832

PA 443

Fair

Over: TRIB. TO SWATARA CREEK

AT I-81 INTERCHANGE, Schuylkill, PA

Built 1968 Load: 41.7 t ADT: 6,057

SR 4020(LR 53056)

Fair

Over: Trib. to Deep Creek

Village of Mable, Schuylkill, PA

Built 1973 Load: 41.7 t ADT: 1,245

MILL ROAD

Fair

Over: DEEP CREEK

N.OF SR 25 NR.SACRAMENTO, Schuylkill, PA

Built 1922 Load: 41.7 t ADT: 200

SR 1002

Fair

Over: TRIB. TO PENNS CREEK

1 MI NW OF SALEM, Snyder, PA

Built 1954 Load: 41.7 t ADT: 381

T-347 OLD TRAIL RD

Fair

Over: W. BR. MAHANTANGO

1.25 MI.SW MCKEES HALF FA, Snyder, PA

Built 1988 Load: 41.7 t ADT: 300

RAMP 8007

Fair

Over: US TR 11/15

BORO OF SHAMOKIN DAM, Snyder, PA

Built 1986 Load: 41.7 t ADT: 9,635

PA 160

Fair

Over: CLEAR RUN

.6 MI.S.OF REELS CORNER, Somerset, PA

Built 1955 Load: 41.7 t ADT: 1,627

US 219

Fair

Over: PINEY CREEK

BOYNTON, Somerset, PA

Built 1923 Load: 41.7 t ADT: 4,865

PA 281

Fair

Over: LAUREL HILL CREEK

CONFLUENCE BOROUGH, Somerset, PA

Built 1935 Load: 41.7 t ADT: 1,738

SR 1001

Fair

Over: STONY CREEK

SHANKSVILLE BORO, Somerset, PA

Built 1989 Load: 41.7 t ADT: 2,744

SR 2015

Fair

Over: WILLS CREEK

GLENCOE, Somerset, PA

Built 1957 Load: 41.7 t ADT: 69

SR 3017

Fair

Over: WEST BRANCH COXES CREEK

1.5 MI SW OF SOMERSET, Somerset, PA

Built 1945 Load: 41.7 t ADT: 477

T524 SECHLER ROAD

Fair

Over: CSX RAILROAD

GEIGER, Somerset, PA

Built 1989 Load: 41.7 t ADT: 920

SR 0087

Fair

Over: LITTLE LOYALSOCK CREEK

BORO OF FORKSVILLE, Sullivan, PA

Built 1935 Load: 41.7 t ADT: 1,352

SR 2003

Fair

Over: PAINTER RUN

1.5 MI NW OF ELK GROVE, Sullivan, PA

Built 1957 Load: 41.7 t ADT: 105

CHERRY TWP.T-359

Fair

Over: LITTLE LOYALSOCK CREEK

2.4 MI W OF DUSHORE, Sullivan, PA

Built 1975 Load: 41.7 t ADT: 110

T-408 FOX TWP.

Fair

Over: HOAGLAND BRANCH

2.6 MI SE OF SHUNK, Sullivan, PA

Built 1990 Load: 41.7 t ADT: 50

SR 1026

Fair

Over: OVER HARTS CREEK

1.5 MI NE OF SOMMERS LANE, Tioga, PA

Built 1959 Load: 41.7 t ADT: 319

SR 4035

Fair

Over: CATLIN HOLLOW CREEK

0.9 MI. NW OF CHARLESTON, Tioga, PA

Built 1984 Load: 41.7 t ADT: 1,686

SPILLWAY ROAD

Fair

Over: HILLS CREEK SPILLWAY

HILLS CREEK STATE PARK, Tioga, PA

Built 1951 Load: 41.7 t ADT: 330

SR 8 MAIN STREET

Fair

Over: OVER CHERRY RUN

ROUSEVILLE BOROUGH, Venango, PA

Built 1993 Load: 41.7 t ADT: 3,998

SR 62 RIVERSIDE DR

Fair

Over: OVER SAGE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1942 Load: 41.7 t ADT: 3,539

SR 6 GRAND ARMY HY

Fair

Over: OVER MORSE RUN

CONEWANGO TOWNSHIP, Warren, PA

Built 1950 Load: 41.7 t ADT: 10,008

SR 1004 VALENTINE

Fair

Over: OVER RHINE RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1965 Load: 41.7 t ADT: 254

SR 4013 HIGHLAND A

Fair

Over: OVER MATTHEWS RUN

YOUNGSVILLE BOROUGH, Warren, PA

Built 1929 Load: 41.7 t ADT: 1,070

T-554 KIDDER ROAD

Fair

Over: OVER LT.BROKENSTRAW CK.

FREEHOLD TOWNSHIP, Warren, PA

Built 1986 Load: 41.7 t ADT: 150

TOWNSHIP ROAD 400

Fair

Over: SR 0022

HANOVER TOWNSHIP, Washington, PA

Built 1971 Load: 41.7 t ADT: 19

East Simmons Road

Fair

Over: CHARTIERS CREEK trib.

100 WEST OF SR 519, Washington, PA

Built 1988 Load: 41.7 t ADT: 20

BEESON AVENUE

Fair

Over: TEN MILE CREEK

MARIANNA BRIDGE NO.2, Washington, PA

Built 1989 Load: 41.7 t ADT: 500

SR 4009

Fair

Over: DYBERRY CREEK

DYBERRY TWP 1.3M N TR 191, Wayne, PA

Built 1984 Load: 41.7 t ADT: 129

Showing 8,401-8,450 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.