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

I-83; n.b./s.b.

Fair

Over: RAMP H

SOUTH SIDE YORK CITY, York, PA

Built 2006 Load: 34.5 t ADT: 43,345

SWEDESFORD ROAD

Fair

Over: US 202 BYPASS

.7MI.S.of PA 401 3474E02, Chester, PA

Built 2008 Load: 34.5 t ADT: 4,873

T-883 JOINER ROAD

Fair

Over: E.BR.CONNEAUT CK.

3 MI NORTH BEAVER CENTER, Crawford, PA

Built 2008 Load: 34.5 t ADT: 50

T-336 BEAR GAP RD

Fair

Over: FLINTSTONE CREEK

0.9 MI North of SR 3005, Bedford, PA

Built 2005 Load: 34.5 t ADT: 50

TROUT RUN RD

Fair

Over: TRIB DONEGAL CREEK

1 THOUSAND FT W OF MUSSER, Lancaster, PA

Built 1996 Load: 34.5 t ADT: 30

WEST STATE STREET

Fair

Over: WEST BR. RED CLAY CREEK

NEAR KENNETT SQUARE 47D5, Chester, PA

Built 1929 Load: 34.7 t ADT: 5,713

LINCOLN DRIVE

Fair

Over: LEWIS RUN

100 NE OF JF KENNEDY DR, McKean, PA

Built 1950 Load: 34.7 t ADT: 200

SKIPPACK PIKE

Fair

Over: PERKIOMEN CREEK

SCHWENKSVIL 14C10/3029G10, Montgomery, PA

Built 1924 Load: 34.7 t ADT: 5,953

SR 3001 OIL CK. RD

Fair

Over: OVER SPRING CREEK

SPRING CREEK TOWNSHIP, Warren, PA

Built 1937 Load: 34.7 t ADT: 208

LIGONIER STREET

Fair

Over: LOYALHANNA CREEK

2000 NW OF SR 981, Westmoreland, PA

Built 1935 Load: 34.7 t ADT: 3,876

MAPLE AVENUE

Fair

Over: WEST BR. NESHAMINY CREEK

.25 MI NE SR 463 3032-D6, Montgomery, PA

Built 1974 Load: 34.7 t ADT: 400

SR 0070

Fair

Over: Johnson Av (was SR 3005)

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 2000 Load: 34.7 t ADT: 42,878

SR 0068

Fair

Over: PINE RUN

3.4 Mi. W East Brady, Armstrong, PA

Built 2012 Load: 34.7 t ADT: 1,801

I-83 NB/SB

Fair

Over: Mill Creek

0.3 Mi. S. of PA-124, York, PA

Built 2020 Load: 34.7 t ADT: 54,017

PA 73 (LR 197)

Fair

Over: FURNACE CREEK

WEST PHILADELPHIA AVE, Berks, PA

Built 1950 Load: 35.0 t ADT: 8,186

US422BUS (LR 149)

Fair

Over: SCH.RIVER;STREETS;NOR/FO

PENN ST BRIDGE, Berks, PA

Built 1913 Load: 35.0 t ADT: 23,812

SR 155-PA 155

Fair

Over: SALT RUN

1 MI N EMPORIUM, Cameron, PA

Built 1942 Load: 35.0 t ADT: 1,571

SR 4010 BEAVER ST.

Fair

Over: OVER CONNEAUT CREEK

SPRINGBORO BOROUGH, Crawford, PA

Built 1965 Load: 35.0 t ADT: 461

SR 6100 (LR486)

Fair

Over: SPRING CREEK

AT SPRING CREEK ROAD, Lehigh, PA

Built 1957 Load: 35.0 t ADT: 12,111

LAFAYETTE AVENUE

Fair

Over: WISSAHICKON CREEK

WHITEMARSH 3257E9, Montgomery, PA

Built 1963 Load: 35.0 t ADT: 5,334

SR 4006

Fair

Over: HARMON CREEK

HANOVER & SMITH TOWNSHIPS, Washington, PA

Built 1941 Load: 35.0 t ADT: 152

Christy Road

Fair

Over: CHARTIERS CREEK trib.

400 WEST OF SR 0519, Washington, PA

Built 1963 Load: 35.0 t ADT: 300

SR 0381

Fair

Over: Loyalhanna Creek

3.3 mi S of SR 0030, Westmoreland, PA

Built 1949 Load: 35.0 t ADT: 875

SR 4014 (LR 13022)

Fair

Over: BUCK MOUNTAIN CREEK

ROCKPORT RD.@GRIST MILLRD, Carbon, PA

Built 2012 Load: 35.0 t ADT: 135

SR 0310

Fair

Over: ELK RUN

1.3 MI N SR 119 INTER., Jefferson, PA

Built 2013 Load: 35.0 t ADT: 2,744

SR0436

Fair

Over: Mahon Cr/Water St/B&P RR

100ft S SR 36 Intersect., Jefferson, PA

Built 2018 Load: 35.0 t ADT: 4,822

SOUTH RING DRIVE

Fair

Over: CHARTIERS CREEK

100 WEST OF SR 3013, Washington, PA

Built 2017 Load: 35.0 t ADT: 400

CROTTLESTOWN RD

Fair

Over: BACK CREEK

TWIN BRIDGE RD INTERSECT, Franklin, PA

Built 1959 Load: 35.3 t ADT: 350

T-454 HOFFMAN RD.

Fair

Over: JACKS CREEK

900 FT NORTH OF T385, Mifflin, PA

Built 1930 Load: 35.3 t ADT: 80

SR 1019

Fair

Over: MARSHALL CREEK

2.7 MI.N.OF DEL.WATER GAP, Monroe, PA

Built 1966 Load: 35.3 t ADT: 4,949

LUDWIG ROAD

Fair

Over: SCHLEGEL CREEK

0.69 MI NW of SR 0073, Montgomery, PA

Built 1990 Load: 35.3 t ADT: 504

SR 3035

Fair

Over: TEMPLETON F WHEELING CK.

WEST FINLEY TOWNSHIP, Washington, PA

Built 1961 Load: 35.3 t ADT: 18

JAMES ROAD

Fair

Over: MACOBY CREEK

.75MI. N PA29 2805-D09, Montgomery, PA

Built 2010 Load: 35.3 t ADT: 3,399

SR 0028

Fair

Over: NORTH FORK PINE CREEK

0.3 MI W SR 1018 INTER., Armstrong, PA

Built 2014 Load: 35.3 t ADT: 7,673

US 15 SB; SR 0015

Fair

Over: PA 116; SR 0116

2 MI. E. OF GETTYSBURG, Adams, PA

Built 1963 Load: 35.4 t ADT: 11,968

SR 1005

Fair

Over: LATIMORE CREEK

1 MI N OF LATIMORE, Adams, PA

Built 1950 Load: 35.4 t ADT: 454

SR 1013

Fair

Over: RED RUN

2 MI.N. OF EAST BERLIN, Adams, PA

Built 1943 Load: 35.4 t ADT: 158

SR 1017

Fair

Over: TRIB OF CONEWAGO CREEK

2.5 MI N OF HUNTERSTOWN, Adams, PA

Built 1963 Load: 35.4 t ADT: 306

SR 1019

Fair

Over: PINE RUN

N OF CROSS KEYS, Adams, PA

Built 1970 Load: 35.4 t ADT: 2,247

FOREST DRIVE

Fair

Over: PINE RUN

2 W ABBOTSTOWN/PINE RUN, Adams, PA

Built 1993 Load: 35.4 t ADT: 100

GUMSPRING ROAD

Fair

Over: TOMS CREEK

3.5 MI.SW OF FAIRFIELD, Adams, PA

Built 1967 Load: 35.4 t ADT: 100

PARKWAY WEST

Fair

Over: MCMICHAEL ROAD

AT INT W/ MCMICHAEL ROAD, Allegheny, PA

Built 1951 Load: 35.4 t ADT: 35,886

SR 0028 NB

Fair

Over: LR 679-SR 910

HARMARVILLE INTERCHANGE, Allegheny, PA

Built 1970 Load: 35.4 t ADT: 24,368

SR 0028 SB

Fair

Over: RT 0910 EB WB

HARMARVILLE INTERCHANGE, Allegheny, PA

Built 1970 Load: 35.4 t ADT: 24,013

SR 0028 NB

Fair

Over: SR 1017-YUTES RUN RD

LR 1037 NB OVER LR 02169, Allegheny, PA

Built 1970 Load: 35.4 t ADT: 20,338

SR 0079 SB

Fair

Over: WARRENDALE BAYNE RD

OVER SR 4052 (RED BELT), Allegheny, PA

Built 1974 Load: 35.4 t ADT: 32,469

WEST NEWTON ROAD

Fair

Over: SR 51

@ County Line, Allegheny, PA

Built 1959 Load: 35.4 t ADT: 3,743

I-376 EB

Fair

Over: BRADY STREET& PED. TRAIL

BRADY ST, Allegheny, PA

Built 1956 Load: 35.4 t ADT: 35,842

WEST END CIRCLE

Fair

Over: W. CARSON ST. SR 3106

@ SOUTH END / WEST END BR, Allegheny, PA

Built 1991 Load: 35.4 t ADT: 14,035

RAMP S

Fair

Over: NS RR UNION RR MAIN ST

TriBoro Expressway, Allegheny, PA

Built 1974 Load: 35.4 t ADT: 8,180

Showing 6,001-6,050 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.