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-324 ELMWOOD ROAD

Good

Over: RACCOON CREEK

700 W OF SR 5 (W LAKE), Erie, PA

Built 2017 Load: 38.6 t ADT: 50

SR 442

Good

Over: WEST BRANCH RUN

1 MILE N OF IOLA, Columbia, PA

Built 2017 Load: 38.6 t ADT: 1,683

SR 146 - PA 146

Good

Over: POTATO CREEK

1 MI S COLEGROVE, McKean, PA

Built 2017 Load: 38.6 t ADT: 137

SR 1009

Good

Over: OXBOW CREEK

LEMON TWP .5 M N TR 92, Wyoming, PA

Built 2017 Load: 38.6 t ADT: 397

SR 6- US 6

Good

Over: BLOOMSTER HOLLOW

KASSON, McKean, PA

Built 2017 Load: 38.6 t ADT: 1,852

ROMIGH RD

Good

Over: CROWS RUN

211003 INT T738 & T575, Beaver, PA

Built 2017 Load: 38.6 t ADT: 50

US 219

Good

Over: SWAMP CREEK

SWAMP CREEK NB, Somerset, PA

Built 2018 Load: 38.6 t ADT: 2,137

US 219

Good

Over: SWAMP CREEK

SWAMP CREEK SB, Somerset, PA

Built 2018 Load: 38.6 t ADT: 2,038

COLLEGE AVENUE

Good

Over: SEPTA (P&W)

W OF HAVERFORD RD 3477K09, Delaware, PA

Built 2018 Load: 38.6 t ADT: 5,225

SR 3018

Good

Over: FIRST FORK LARRYS CREEK

1 MI W OF SALLADASBURG, Lycoming, PA

Built 2021 Load: 38.6 t ADT: 148

I-95 SB

Good

Over: NEW RODGERS ROAD (PA413)

.5 MI. EAST I-295 3262J10, Bucks, PA

Built 2018 Load: 38.6 t ADT: 41,939

SR 1019

Good

Over: E BR STANDING STONE CRK

0.2 MILE NORTH OF SR 1021, Huntingdon, PA

Built 2018 Load: 38.6 t ADT: 280

HAVICE VALLEY ROAD

Good

Over: HAVICE CREEK

5 MI NE OF SR 1003, Mifflin, PA

Built 2018 Load: 38.6 t ADT: 100

SR 1008

Good

Over: Rattlesnake Creek

530ft E SR 0219 Inters, Jefferson, PA

Built 2018 Load: 38.6 t ADT: 758

US-11;Philadelphia

Good

Over: Conococheague Creek

Red Bridge, Franklin, PA

Built 2018 Load: 38.6 t ADT: 13,315

SR 8024(LR794RMP)

Good

Over: SR 80 (LR794)

ON RAMP TO I-80 WEST, Monroe, PA

Built 2018 Load: 38.6 t ADT: 3,043

SR 2030 (LR 776)

Good

Over: I-80 (LR 794)

I-80WB OFF RAMP TO PA 611, Monroe, PA

Built 2018 Load: 38.6 t ADT: 1,048

T-359 (BR.# 3)

Good

Over: SCHRADER BR.TOWANDA CRK

2.6 Mi. SW OF BARCLAY, Bradford, PA

Built 2018 Load: 38.6 t ADT: 50

East Elfinwild Rd

Good

Over: Pine Creek

PI09 PINE CREEK # 9, Allegheny, PA

Built 2020 Load: 38.6 t ADT: 1,862

SR 0084 I-84 EB

Good

Over: YORK CREEK

BMG GRVE TWP .5M W TR 739, Pike, PA

Built 2019 Load: 38.6 t ADT: 7,988

COUNTY LINE EXPWY

Good

Over: SOUTH TROOPER ROAD

W. NORRITON 27J9/3366C3, Montgomery, PA

Built 2019 Load: 38.6 t ADT: 138,484

MARKET STREET

Good

Over: AMTRAK

1 MILE SOUTH 322 42H10, Delaware, PA

Built 2019 Load: 38.6 t ADT: 7,152

I-95

Good

Over: SHACKAMAXON STREET

NR.FRANKFORD AVE. 3590J06, Philadelphia, PA

Built 2019 Load: 38.6 t ADT: 147,295

South Spruce St.

Good

Over: Quittapahilla Creek

0.9 MI W of Anville, Lebanon, PA

Built 2019 Load: 38.6 t ADT: 2,920

GRAHAM ROAD

Good

Over: Ferney Run

6 MI N of Farrandsville, Clinton, PA

Built 2019 Load: 38.6 t ADT: 20

SR 8042

Good

Over: SR 0040

WEST BROWNSVILLE BOROUGH, Washington, PA

Built 2019 Load: 38.6 t ADT: 1,855

SR 154

Good

Over: KINGS CREEK

VILLAGE OF ESTELLA, Sullivan, PA

Built 2020 Load: 38.6 t ADT: 362

SR4012

Good

Over: N Br Slippery Rock Creek

2.2 mi W SR 308 Intersect, Butler, PA

Built 2019 Load: 38.6 t ADT: 803

Stoops Ferry Road

Good

Over: Flaugherty Run

AT SR 3089 INT, Allegheny, PA

Built 2019 Load: 38.6 t ADT: 13,326

Station Street

Good

Over: Robinson Run

RS04 ROBINSON RUNSBR #4, Allegheny, PA

Built 2019 Load: 38.6 t ADT: 884

INTERSTATE 95

Good

Over: GIRARD AVENUE

NEAR CUMBERLAND ST3590K05, Philadelphia, PA

Built 2020 Load: 38.6 t ADT: 147,295

SR1053

Good

Over: South Branch Bear Run

1.2mi N SR 1048 Intersect, Indiana, PA

Built 2020 Load: 38.6 t ADT: 44

SR 1031 Millport

Good

Over: Lititz Run

0.25 MI.W. OF DISSTON, Lancaster, PA

Built 2020 Load: 38.6 t ADT: 1,623

TOWNSHIP ROAD 392

Good

Over: Grays Fork

EAST OF GRAYSVILLE, Greene, PA

Built 2020 Load: 38.6 t ADT: 20

RT 50 Connector

Good

Over: SR 3001 - Miller Road

MP 15.93 on Rt 3001, Allegheny, PA

Built 2017 Load: 38.6 t ADT: 1,500

UPPER RIDGE ROAD

Good

Over: UNAMI CREEK

FINLAND;MILFORD 12J11, Bucks, PA

Built 2020 Load: 38.6 t ADT: 2,946

16TH STREET

Good

Over: W. Br. Susquehanna River

16th St N Cambria Boro, Cambria, PA

Built 2020 Load: 38.6 t ADT: 103

US-22;SR 0022 EB

Good

Over: SR 0034

2 MI.NE OF NEWPORT BORO, Perry, PA

Built 2022 Load: 38.6 t ADT: 8,940

UNION AVENUE

Good

Over: SEPTA (IVY RIDGE BRANCH)

300 SW PA-23 3479-D10, Montgomery, PA

Built 2020 Load: 38.6 t ADT: 2,500

T-312;Stonewall Rd

Good

Over: Middle Spring Creek

1.3 mNorth of Shipensburg, Cumberland, PA

Built 2022 Load: 38.6 t ADT: 732

PA TPK 0576

Good

Over: SR 4037 SR 4012 stream

0.7 mile west of SR 0980, Washington, PA

Built 2017 Load: 38.6 t ADT: 19,070

SR 3023

Good

Over: TUSCARORA CREEK

PERULACK, Juniata, PA

Built 2022 Load: 38.6 t ADT: 164

SR 3007

Good

Over: SR 0070

NORTH BELLE VERNON BORO., Westmoreland, PA

Built 2022 Load: 38.6 t ADT: 6,065

SR3016

Good

Over: TWO LICK CREEK

HOMER CITY - N MAIN ST, Indiana, PA

Built 2021 Load: 38.6 t ADT: 420

SR 3017

Good

Over: Mud Run

3.25 MI.N.W. OF GETTYSBRG, Adams, PA

Built 2021 Load: 38.6 t ADT: 1,633

STONY RUN RD

Good

Over: Stony Run

HARTLEY TWP, Union, PA

Built 2021 Load: 38.6 t ADT: 30

PA 772; A.Ferry R

Good

Over: Donegal Creek

1.75 MI.N.E. OF MARIETTA, Lancaster, PA

Built 2021 Load: 38.6 t ADT: 2,408

SR 0008

Good

Over: Glade Run

1.8 mi S SR 228 Intersect, Butler, PA

Built 2022 Load: 38.6 t ADT: 16,764

SR 2036

Good

Over: EMIGH RUN

HAWK RUN, Clearfield, PA

Built 2022 Load: 38.6 t ADT: 1,317

SR 27 MTTHWS RN RD

Good

Over: TELICK RUN

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2022 Load: 38.6 t ADT: 1,432

Showing 15,651-15,700 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.