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

INTERSTATE 95 S.B.

Fair

Over: POQUESSING CR & GRANT AV

NR.GRANT AVENUE 3483C02, Philadelphia, PA

Built 1965 Load: 42.6 t ADT: 60,668

BUSTLETON PIKE

Fair

Over: BRANCH PENNYPACK CREEK

.3MI.S.RED LION RD3372F05, Philadelphia, PA

Built 1973 Load: 42.6 t ADT: 29,448

KNIGHTS ROAD

Fair

Over: BYBERRY CREEK

NEAR FRANKFORD AV.3373C10, Philadelphia, PA

Built 1959 Load: 42.6 t ADT: 14,010

Wingohocking St.

Fair

Over: Frankford Creek

E. of Castor Ave. 29F01, Philadelphia, PA

Built 1951 Load: 42.6 t ADT: 7,100

RAMP M & RAMP K

Fair

Over: ORTHODOX PEARCE ARAMINGO

ARAMINGO INTER. 3481H10, Philadelphia, PA

Built 1974 Load: 42.6 t ADT: 15,799

RAMP W

Fair

Over: STATION AVENUE

SEPTA PARK/RIDE 45G03, Bucks, PA

Built 1997 Load: 42.6 t ADT: 77

Zoological Avenue

Fair

Over: Future Rail

W of 34th Street 28B09, Philadelphia, PA

Built 1930 Load: 42.6 t ADT: 5,500

PA 772; SR 0772

Fair

Over: GROFFS RUN

TALMAGE, Lancaster, PA

Built 1998 Load: 42.6 t ADT: 11,389

US 219 NBL

Fair

Over: CASSELMAN R & CSX RR

1.5 MI.NW OF MEYERSDALE, Somerset, PA

Built 1998 Load: 42.6 t ADT: 1,861

RAMPS W WB CB/LS

Fair

Over: SR 8024 - TUNNEL

DUNMORE BORO .1 M N I-81, Lackawanna, PA

Built 1999 Load: 42.6 t ADT: 23,266

SR 0079

Fair

Over: SR 0019

AMWELL TOWNSHIP, Washington, PA

Built 1998 Load: 42.6 t ADT: 12,743

4TH STREET

Fair

Over: ELK CREEK

450FT NW OF SR 120 INT, Elk, PA

Built 2000 Load: 42.6 t ADT: 3,569

T-397 MT ZION ROAD

Fair

Over: W BR LITTLE ANTIETAM CRK

400 FT WEST OF SR 997, Franklin, PA

Built 2002 Load: 42.6 t ADT: 300

US 30 EB; SR 0030

Fair

Over: PA 462 Lincoln Hwy

SR 30E.B.over Lincoln Hwy, Lancaster, PA

Built 2002 Load: 42.6 t ADT: 18,233

CNTY105 Conv Cen B

Fair

Over: BRUSH RUN

500WEST OF SR 36, Blair, PA

Built 2001 Load: 42.6 t ADT: 14,880

LEFT ASAPH ROAD

Fair

Over: LEFT ASAPH RUN

2 MI W OF RIGHT ASAPH RD, Tioga, PA

Built 2002 Load: 42.6 t ADT: 25

PA TPK TOLL 43 SB

Fair

Over: SR 1006

SR 0043 SB OVER SR 1006, Washington, PA

Built 2000 Load: 42.6 t ADT: 5,533

T-464 RUMLER ROAD

Fair

Over: TRIB OF DENNIS CREEK

150 FT S of SR 4008, Franklin, PA

Built 2003 Load: 42.6 t ADT: 25

Deer Creek Rd

Fair

Over: Trib. Little Muddy Creek

NE of Adamstown, Berks, PA

Built 2004 Load: 42.6 t ADT: 400

SR 290 ZURN VIADUC

Fair

Over: CSX & LIM.CO

City of ERIE, Erie, PA

Built 2004 Load: 42.6 t ADT: 11,585

I-83; SR 0083

Fair

Over: T-721; DEWDROP RD.

SOUTH SIDE YORK CITY, York, PA

Built 2006 Load: 42.6 t ADT: 45,905

SR0028

Fair

Over: B&P RR/S FRK PINE CR

PA 28 PINE CREEK, Armstrong, PA

Built 2007 Load: 42.6 t ADT: 7,673

14th STREET

Fair

Over: BRUSH RUN

14th ST. OVER BRUSH RUN, Blair, PA

Built 2004 Load: 42.6 t ADT: 842

Little Rock Road

Fair

Over: Bernhart Creek

Above Bernharts Reservoir, Berks, PA

Built 2008 Load: 42.6 t ADT: 100

HEIDEN ROAD

Fair

Over: TRIB. TO JACOBY CREEK

NE OF JOHNSONVILLE, Northampton, PA

Built 2006 Load: 42.6 t ADT: 100

LACKAWANNA AVENUE

Fair

Over: LACK RIVER / DEL-LACK RR

NORTH EDGE STEAMTOWN NHS, Lackawanna, PA

Built 2009 Load: 42.6 t ADT: 10,660

SR0322

Fair

Over: NORTH FORK CREEK

.5 mi E SR 36 Intersect., Jefferson, PA

Built 2010 Load: 42.6 t ADT: 8,856

SR 3013 Orchard Rd

Fair

Over: TR LITTLE NESHANNOCK CK

WILMINGTON TWP, Mercer, PA

Built 2010 Load: 42.6 t ADT: 612

Bell Ave

Fair

Over: Unnamed Tributary

Duncan Way & Bell Ave, Allegheny, PA

Built 1995 Load: 42.6 t ADT: 200

Lindsay Rd

Fair

Over: Unnamed Tributary

Lindsay & Hope Hollow Rd, Allegheny, PA

Built 1995 Load: 42.6 t ADT: 200

Ayerwood Drive

Fair

Over: Tri. of Beaver Creek

.12M Frm Lloyd Ave3471D10, Chester, PA

Built 2015 Load: 42.6 t ADT: 100

ANGELICA DRIVE

Fair

Over: E BR.WHITE CLAY CREEK

E CLAY CREEK RD3910E02, Chester, PA

Built 1994 Load: 42.6 t ADT: 250

Glendale Road

Fair

Over: Tributary to Brush Creek

Brush Creek Park, Beaver, PA

Built 1980 Load: 42.6 t ADT: 25

ORCHARD LANE

Fair

Over: INDIAN CREEK

S OF MILL RD, Montgomery, PA

Built 1986 Load: 42.6 t ADT: 1,000

SR 4017

Fair

Over: Browns Fork of Ten Mile

MORRIS TOWNSHIP, Greene, PA

Built 1955 Load: 42.8 t ADT: 185

T-325 TEXTOR SCHL

Fair

Over: BREAKNECK CREEK

0.1 mile NE of SR 68 In, Butler, PA

Built 2013 Load: 43.1 t ADT: 200

ESSINGTON AVENUE

Fair

Over: CRUM CREEK

RIDLEY TWP.LINE 44B02, Delaware, PA

Built 1949 Load: 43.4 t ADT: 14,523

LOWER LAKE ROAD

Fair

Over: E. BR. WALLENPAUPACK CK.

PROMISED LAND STATE PARK, Pike, PA

Built 2012 Load: 43.4 t ADT: 75

US 30; SR 0030

Fair

Over: SETTLES RUN

NW OF GETTYSBURG, Adams, PA

Built 1990 Load: 43.5 t ADT: 6,752

PA 194; SR 0194

Fair

Over: TRIB TO CONEWAGO

E OF LITTLESTOWN, Adams, PA

Built 1954 Load: 43.5 t ADT: 10,044

SR 1005

Fair

Over: LATIMORE CREEK

W.OF DEARDORFFS MILL, Adams, PA

Built 1922 Load: 43.5 t ADT: 427

RAYMOND SHAFER HW

Fair

Over: WLE RR CHARTIERS CREEK

NORTH OF TR50, Allegheny, PA

Built 1965 Load: 43.5 t ADT: 32,037

RAYMOND SHAFER HW

Fair

Over: POC RAILWAY

1/4 MI.SOUTH OF SR 3054, Allegheny, PA

Built 1972 Load: 43.5 t ADT: 24,542

RAYMOND SHAFER HW

Fair

Over: GLENFIELD RD KILBUCK RUN

79 SB OVER GLENFIELD RD, Allegheny, PA

Built 1971 Load: 43.5 t ADT: 18,025

RAMP C (FORT PITT)

Fair

Over: RAMPS B D G F & Q

Fort Pitt Bridge, Allegheny, PA

Built 1958 Load: 43.5 t ADT: 17,144

DAYS RUN RD

Fair

Over: DAYS RUN

OFF BAILEY RUN RD., Allegheny, PA

Built 1954 Load: 43.5 t ADT: 497

SUNFISH RD

Fair

Over: SUNFISH RUN

3/4 MI. NORTH OF SR 0136, Allegheny, PA

Built 1949 Load: 43.5 t ADT: 172

CASTLE SHANNON BLV

Fair

Over: SAW MILL RUN

300 NW OF SR 88, Allegheny, PA

Built 1900 Load: 43.5 t ADT: 12,901

RAMP FR-E

Fair

Over: INTERSTATE 376

EXIT TO SR 376 BUSINESS, Allegheny, PA

Built 1991 Load: 43.5 t ADT: 3,924

VANADIUM RD

Fair

Over: CHARTIERS CREEK

CC17 CHARTIERS CRK # 17, Allegheny, PA

Built 1984 Load: 43.5 t ADT: 9,615

Showing 8,751-8,800 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.