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 0014

Good

Over: OVER SUGAR WORKS RUN

1.8 MI N OF ROARING BR, Tioga, PA

Built 1994 Load: 45.4 t ADT: 2,383

PA 49

Good

Over: COWANESQUE RIVER

0.5 MI E OF WESTFIELD, Tioga, PA

Built 1948 Load: 45.4 t ADT: 4,510

SR 3011

Good

Over: CHARLESTON CREEK

1.5 MI E OF WELLSBORO, Tioga, PA

Built 1952 Load: 45.4 t ADT: 676

T-542

Good

Over: CROOKED CREEK

0.8 MI. E. OF SHORTSVILLE, Tioga, PA

Built 1995 Load: 45.4 t ADT: 25

T-311 SUTTON ROAD

Good

Over: CALDWELL CREEK

SOUTHWEST TOWNSHIP, Warren, PA

Built 2010 Load: 45.4 t ADT: 50

SR 1006

Good

Over: BRANCH OF PETERS CREEK

PETERS TOWNSHIP, Washington, PA

Built 1984 Load: 45.4 t ADT: 13,931

CEDAR GROVE BRIDGE

Good

Over: CROSS CREEK TRIB.

@ SR 4029 INTERSECTION, Washington, PA

Built 1950 Load: 45.4 t ADT: 150

T-544 PARCELL RD

Good

Over: SHORT CREEK

100 SOUTH OF SR 18, Washington, PA

Built 1874 Load: 45.4 t ADT: 112

SR 0711

Good

Over: FOURMILE RUN

DONEGAL TOWNSHIP, Westmoreland, PA

Built 1987 Load: 45.4 t ADT: 4,075

PA 74; SR 0074

Good

Over: DOE RUN

WELLSVILLE BORO, York, PA

Built 1995 Load: 45.4 t ADT: 1,342

T370 PENTLAND RD.

Good

Over: EAST BR CODORUS CREEK

.8E CODORUS S P/E.BR.CDR, York, PA

Built 1996 Load: 45.4 t ADT: 339

T-760 BANK HILL RD

Good

Over: CANADOCHLY CREEK

.4E E.PROSPECT/CANADOCHLY, York, PA

Built 1999 Load: 45.4 t ADT: 350

BASS LAKE ROAD

Good

Over: TRIB. TO FISHING CREEK

NEWBERRY TWP, York, PA

Built 1991 Load: 45.4 t ADT: 200

STEWARTSTOWN ROAD

Good

Over: DEER CREEK

1.3 SW STEWARTWN/DEER CR, York, PA

Built 1959 Load: 45.4 t ADT: 582

CHESTNUT STREET

Good

Over: AMTRAK;SCH EXPWY&30TH ST

AT 30TH STREET 3590 A08, Philadelphia, PA

Built 1934 Load: 45.4 t ADT: 18,330

Evergreen Avenue

Good

Over: SEPTA

S of Stenton Avenue 16K02, Philadelphia, PA

Built 1922 Load: 45.4 t ADT: 2,500

Luzerne Street

Good

Over: CONRAIL (TRACK REMOVED)

E.WHITAKER AVENUE 29C02, Philadelphia, PA

Built 1915 Load: 45.4 t ADT: 7,100

63rd Street

Good

Over: AMTRAK (NE Corridor)

S of Paschall Ave 36F04, Philadelphia, PA

Built 1997 Load: 45.4 t ADT: 4,300

Sedgley Avenue

Good

Over: CONRAIL

W of Seventh St 28J03, Philadelphia, PA

Built 1907 Load: 45.4 t ADT: 6,300

BRIDGE 1215 T-918

Good

Over: OVER LITTLE SANDY CREEK

DEEMERS DAM RD. MILL CK., Mercer, PA

Built 1997 Load: 45.4 t ADT: 27

SR 1019

Good

Over: SR 0006 EB & WB

CARBONDALE CITY OVER TR 6, Lackawanna, PA

Built 1996 Load: 45.4 t ADT: 588

SR 4011

Good

Over: SIDELING HILL CREEK

.8 MI.E.OF WATERFALL, Fulton, PA

Built 1997 Load: 45.4 t ADT: 106

SR 0021

Good

Over: GRAYS FORK

GRAY TOWNSHIP, Greene, PA

Built 1998 Load: 45.4 t ADT: 3,040

SR 8024 RAMP

Good

Over: TIGUE STREET

DUNMORE BORO OVR TIGUE ST, Lackawanna, PA

Built 1997 Load: 45.4 t ADT: 1,650

SR 0706 TR 706

Good

Over: WYALUSING CREEK

RUSH TWP 223 E TR 858, Susquehanna, PA

Built 1997 Load: 45.4 t ADT: 2,236

CENTER ST

Good

Over: PAT BR LOC 9054

439001 N/OXBOW/SMILAX ST, Allegheny, PA

Built 1996 Load: 45.4 t ADT: 2,363

US 522

Good

Over: HILL VALLEY CREEK

MOUNT UNION BORO., Huntingdon, PA

Built 1998 Load: 45.4 t ADT: 5,192

SR 322-US 322

Good

Over: SR 655-PA 655

REEDSVILLE, Mifflin, PA

Built 1998 Load: 45.4 t ADT: 11,457

TOWNSHIP ROAD 555

Good

Over: TEN MILE CREEK

NE OF WAYNESBURG, Greene, PA

Built 1998 Load: 45.4 t ADT: 25

SR 0188

Good

Over: SOUTH FORK TEN MILE

FRANKLIN TOWNSHIP, Greene, PA

Built 1998 Load: 45.4 t ADT: 4,152

SR 8024 - RAMP

Good

Over: DUNHAM DRIVE & I-84 RAMP

DUNMORE BO OVR DNM DR&I84, Lackawanna, PA

Built 1998 Load: 45.4 t ADT: 7,495

SWAMP ROAD

Good

Over: MILL CREEK

RUSHLAND 30F08, Bucks, PA

Built 2000 Load: 45.4 t ADT: 6,374

SR 0018

Good

Over: SOUTH FORK OF TENMILE CR

CENTER TWP, Greene, PA

Built 2000 Load: 45.4 t ADT: 5,962

PA TPK SB(TOLL 43)

Good

Over: T-343 BROWNFIELD RUN

4.3MI.S.OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 45.4 t ADT: 4,443

SR 2033; (TWP RD)

Good

Over: AMTRAK RR.

GORDENVILLE, Lancaster, PA

Built 2001 Load: 45.4 t ADT: 2,663

PA 33 NB

Good

Over: SR 2020

OVER WM. PENN HWY., Northampton, PA

Built 2001 Load: 45.4 t ADT: 39,546

US 30 WB; SR 0030

Good

Over: PA 283

.5 MI. W. OF FRUITVL PIKE, Lancaster, PA

Built 2000 Load: 45.4 t ADT: 31,206

SR 1007(LR 55053)

Good

Over: PA TURNPIKE(I-76) B-428

1.8 MI. N.W. OF ROXBURY, Somerset, PA

Built 2001 Load: 45.4 t ADT: 243

US 30 EB; SR 0030

Good

Over: PA 283 EB

.5 MI. W. OF FRUTVL PIKE, Lancaster, PA

Built 2000 Load: 45.4 t ADT: 25,197

SR 15 SB

Good

Over: TIOGA RESERVOIR MILL CK

MILL CREEK/TIOGA DAM/SB, Tioga, PA

Built 2001 Load: 45.4 t ADT: 4,953

PA 523

Good

Over: CASSELMAN RIVER

HARNEDSVILLE, Somerset, PA

Built 2002 Load: 45.4 t ADT: 1,187

SR 44

Good

Over: OVER ANTES CREEK

5 MI. S. OF JERSEY SHORE, Lycoming, PA

Built 2002 Load: 45.4 t ADT: 1,805

SR 99-I 99

Good

Over: T-376 AND SPRING CREEK

2 MI NE OF STATE COLLEGE, Centre, PA

Built 2002 Load: 45.4 t ADT: 13,842

SR 522

Good

Over: TRIB TO MIDDLE CREEK

7 MI W OF MIDDLEBURG, Snyder, PA

Built 2002 Load: 45.4 t ADT: 4,340

SR 3042

Good

Over: SR 99 AND RAMPS

2 M N OF STATE COLLEGE, Centre, PA

Built 2002 Load: 45.4 t ADT: 9,136

SR 1008

Good

Over: TRIB TO WARRIOR RUN

2 MI NORTH OF TURBOTVILLE, Northumberland, PA

Built 2002 Load: 45.4 t ADT: 490

T-467

Good

Over: TREASTER RUN

2600 FT SOUTH OF T-471, Mifflin, PA

Built 2002 Load: 45.4 t ADT: 100

MINGO BRIDGE

Good

Over: MINGO CREEK

MINGO CREEK COUNTY PARK, Washington, PA

Built 2002 Load: 45.4 t ADT: 50

SR 10 (LR 274)

Good

Over: ANGELICA CREEK

ANGELICA PARK, Berks, PA

Built 2003 Load: 45.4 t ADT: 4,250

BRIDGE 813 T-470

Good

Over: OVER SHENANGO RIVER BR

HAMBURG RD HEMPFIELD TWP, Mercer, PA

Built 2003 Load: 45.4 t ADT: 3,134

Showing 17,951-18,000 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.