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

T-632 MCHUGH AVE

Good

Over: SAWMILL RUN

0.1 MILE SOUTH OF SR 3021, Jefferson, PA

Built 1999 Load: 47.2 t ADT: 40

T-365 IRON BRIDGE

Good

Over: CATHERS RUN

1.75 MI SW OF SR 36, Jefferson, PA

Built 1999 Load: 47.2 t ADT: 60

SR 2006 PARK ST

Good

Over: LACKAWAXEN RIVER

TEXAS TWP .1 M W INT TR 6, Wayne, PA

Built 2000 Load: 47.2 t ADT: 1,295

GRAVEL PIKE

Good

Over: SCHOOL HOUSE RUN

2MI.N.COLLEGEVILLE 3141H6, Montgomery, PA

Built 2000 Load: 47.2 t ADT: 9,181

MEDIA ROAD

Good

Over: LITTLE ELK CREEK

HICKORY HILL 52C08, Chester, PA

Built 2000 Load: 47.2 t ADT: 261

SR 0021

Good

Over: SOUTH FORK TENMILE CREEK

CENTER TOWNSHIP, Greene, PA

Built 2000 Load: 47.2 t ADT: 2,424

T-493 CTY BR. 14

Good

Over: TIOGA RIVER

VILLAGE OF CANOE CAMP, Tioga, PA

Built 2000 Load: 47.2 t ADT: 275

ON TSR 430

Good

Over: SR 99-I 99

1 MI N PLEASANT GAP, Centre, PA

Built 2000 Load: 47.2 t ADT: 3,232

US 30 EB; SR 0030

Good

Over: US 272 SB & NB

US 30 EB OVER US 272NB&SB, Lancaster, PA

Built 2001 Load: 47.2 t ADT: 61,868

PA TPK (TOLL 43)SB

Good

Over: MOUNTAIN CREEK

3 MI. SOUTH OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 47.2 t ADT: 4,443

SR 3022 (LR 530)

Good

Over: WALKING PATH

4TH STREET, Northampton, PA

Built 2001 Load: 47.2 t ADT: 6,841

SR0286

Good

Over: CROOKED CREEK

ONBERG NO.2, Indiana, PA

Built 2000 Load: 47.2 t ADT: 5,148

RAMP D-2 TO RT 422

Good

Over: RAMP B ( WB I76)/3366-H7

.2MI.S.GULPH RD 34C01, Montgomery, PA

Built 2003 Load: 47.2 t ADT: 16,162

RAMP E

Good

Over: RAMP B / 3366-H7

.SMI.S.GULPH ROAD 34C01, Montgomery, PA

Built 2003 Load: 47.2 t ADT: 12,039

SR 3004

Good

Over: PA TPK (TOLL 43)

NEAR END OF SR0043, Fayette, PA

Built 1998 Load: 47.2 t ADT: 191

SR 2002 SANS SOUCI

Good

Over: SOLOMONS CREEK

HANOVER TWP JCT SR 2001, Luzerne, PA

Built 2001 Load: 47.2 t ADT: 12,917

SR 549

Good

Over: OVER BEAR CREEK

1.5 MI NE OF ROSEVILLE, Tioga, PA

Built 2001 Load: 47.2 t ADT: 538

PA 994

Good

Over: NORTH SPRING CREEK

.1 MI W TR 747 3 SPRINGS, Huntingdon, PA

Built 2002 Load: 47.2 t ADT: 1,090

SR 99-I 99

Good

Over: PRISON ROAD E/VENTURE DR

1/2 MI N SR 150 INTERCHAN, Centre, PA

Built 2001 Load: 47.2 t ADT: 11,450

SR 8021-PA 8021

Good

Over: SR 99 AND SR 8021

4 MI SE BELLEFONTE, Centre, PA

Built 2001 Load: 47.2 t ADT: 1,592

ROCK RUN ROAD

Good

Over: MINERS RUN

2 MI NE OF SR 14, Lycoming, PA

Built 1997 Load: 47.2 t ADT: 15

LAUREL RUN ROAD

Good

Over: POPLAR RUN

1/2 MI NORTH OF SR 447, Monroe, PA

Built 1997 Load: 47.2 t ADT: 35

FREEPORT ROAD

Good

Over: SR 79 NB-SB TPK RAMPS

1000 FT EAST OF SR 0019, Allegheny, PA

Built 2003 Load: 47.2 t ADT: 3,369

PA TPK (TOLL 43)

Good

Over: SR88&1087 W&LE CK

0.75MI. N OF SR136 INT., Washington, PA

Built 2000 Load: 47.2 t ADT: 5,633

BENDERSVILLE ROAD

Good

Over: MOUNTAIN CREEK

950 FT SW OF SR 233, Cumberland, PA

Built 2001 Load: 47.2 t ADT: 232

SR0022 EB&WB

Good

Over: SR0119 NB&SB

CHESTNUT RIDGE CC, Indiana, PA

Built 2003 Load: 47.2 t ADT: 19,753

EXCELSIOR ROAD

Good

Over: COPLAY CREEK

EAST OF TURNPIKE, Lehigh, PA

Built 2003 Load: 47.2 t ADT: 200

SR 1011

Good

Over: CANOE CREEK

3 MI.N.OF CANOE CREEK, Blair, PA

Built 2004 Load: 47.2 t ADT: 160

SR0981

Good

Over: SAXMAN RUN

DERRY TWP, Westmoreland, PA

Built 2004 Load: 47.2 t ADT: 7,736

US 522

Good

Over: BLACKLOG CREEK

WWII VETERANS MEMORIAL BR, Huntingdon, PA

Built 2005 Load: 47.2 t ADT: 5,452

TR-388 (CO. BR. 2)

Good

Over: SOUTH BR. TOWANDA CREEK

.75 MI. SE OF NEW ALBANY, Bradford, PA

Built 2005 Load: 47.2 t ADT: 200

PA 241 SR 241

Good

Over: CONEWAGO CREEK

LAWN, Lebanon, PA

Built 2005 Load: 47.2 t ADT: 1,888

SR 15 SB

Good

Over: W. BR. SUSQUEHANNA RIVER

MARKET ST.WMSPT RIVER BR, Lycoming, PA

Built 2006 Load: 47.2 t ADT: 13,277

SR1005

Good

Over: RAYNE RUN

RAYNE RUN, Indiana, PA

Built 2005 Load: 47.2 t ADT: 514

T-380 CLARK RD

Good

Over: HADDEN RUN

0.03 MILES S OF SR 3011, Jefferson, PA

Built 2006 Load: 47.2 t ADT: 50

WALLER STREET

Good

Over: SOLOMON CREEK

ADJACENT TO BROOK STREET, Luzerne, PA

Built 2006 Load: 47.2 t ADT: 460

T356(JENNINGS RD.)

Good

Over: MESHOPPEN CREEK

3 MILES S. OF SPRINGVILLE, Susquehanna, PA

Built 1890 Load: 47.2 t ADT: 50

WILLOW GROVE AVE.

Good

Over: PA 309 BY-PASS

LAVEROCK 3370B05, Montgomery, PA

Built 2007 Load: 47.2 t ADT: 9,105

SR 0097

Good

Over: LITTLE RUN

South East of Gettysburg, Adams, PA

Built 2007 Load: 47.2 t ADT: 7,298

I-99 / US 220 SBL

Good

Over: SR 4041

0.7 MI. S. OF BALD EAGLE, Blair, PA

Built 2006 Load: 47.2 t ADT: 6,583

SR 322 -US 322

Good

Over: SR 0099

2 MI NW OF PORT MATILDA, Centre, PA

Built 2006 Load: 47.2 t ADT: 5,254

SR 3025

Good

Over: BR.CONNEAUTTEE C

WASHINGTON TOWNSHIP, Erie, PA

Built 2008 Load: 47.2 t ADT: 528

SR 3025

Good

Over: CUMMINGS CREEK

WASHINGTON TOWNSHIP, Erie, PA

Built 2008 Load: 47.2 t ADT: 528

SR 15 SBL

Good

Over: SR 4022 & COWANESQUE RIV

BORO OF LAWRENCEVILLE, Tioga, PA

Built 2008 Load: 47.2 t ADT: 4,912

SR 15 NBL

Good

Over: TIOGA RIVER AND RAILROAD

2 Mi N. OF TIOGA BORO, Tioga, PA

Built 2008 Load: 47.2 t ADT: 4,320

SR 15 SBL

Good

Over: TIOGA RIVER AND RAILROAD

2 MI. N. OF TIOGA BORO, Tioga, PA

Built 2008 Load: 47.2 t ADT: 4,416

SR 1006

Good

Over: FREEMAN RUN

0.11 MI E FROM PA259, Westmoreland, PA

Built 2008 Load: 47.2 t ADT: 435

MAIN PARK ROAD

Good

Over: NORCROSS RUN

SINNEMAHONING STATE PARK, Cameron, PA

Built 2008 Load: 47.2 t ADT: 165

SR 4003

Good

Over: BRANCH OF BRUSH CREEK

0.20 MI S FROM PA66, Westmoreland, PA

Built 2009 Load: 47.2 t ADT: 2,244

SR 305

Good

Over: LITTLE KISHACOQUILLAS CR

BELLEVILLE, Mifflin, PA

Built 2009 Load: 47.2 t ADT: 1,765

Showing 18,401-18,450 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.