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 3001(LR 39023)

Good

Over: SPRING CREEK

SPRING CREEK ROAD, Lehigh, PA

Built 2012 Load: 39.2 t ADT: 3,180

SR 4027

Good

Over: PA Turnpike (I-76)

1.2 MI North of SR 641, Cumberland, PA

Built 2012 Load: 39.2 t ADT: 986

T-318 Koser Road

Good

Over: Conewago Creek

1/2 Mi N of SR 0241, Lancaster, PA

Built 2012 Load: 39.2 t ADT: 420

SAXONBURG BLVD

Good

Over: DEER CREEK

0.5 MI NE OF SR 0910, Allegheny, PA

Built 2013 Load: 39.2 t ADT: 4,773

SR 49-PA 49

Good

Over: COWANESQUE RIVER

ELMER, Potter, PA

Built 2013 Load: 39.2 t ADT: 1,802

SR 44-PA 44

Good

Over: BELL RUN

MYRTLE, McKean, PA

Built 2013 Load: 39.2 t ADT: 2,217

PA 56

Good

Over: ADAMS RUN

0.1 MILE WEST OF SR 4017, Bedford, PA

Built 2013 Load: 39.2 t ADT: 6,888

SR 0407 TR 407

Good

Over: TRIB TO LACKAWANNA AVE

N ABINGTN TWP. 5M S TR524, Lackawanna, PA

Built 2013 Load: 39.2 t ADT: 1,131

15TH STREET

Good

Over: MLK JR. DRIVE

NW OF LITTLE LEHIGH CREEK, Lehigh, PA

Built 2013 Load: 39.2 t ADT: 20,000

PA 345

Good

Over: NORFOLK SOUTHERN RR

BIRDSBORO RR BRIDGE, Berks, PA

Built 2014 Load: 39.2 t ADT: 6,779

SR 0021

Good

Over: Grays Fork

0.8 mi E from SR 4009, Greene, PA

Built 2014 Load: 39.2 t ADT: 3,040

WB-433

Good

Over: PA TPK (I-76)

West of Indianola, Allegheny, PA

Built 2013 Load: 39.2 t ADT: 6,816

SR 1008

Good

Over: STONYCREEK RIVER

MOSTOLLER, Somerset, PA

Built 2014 Load: 39.2 t ADT: 817

SR 307 TR 307

Good

Over: OSTERHOUT CREEK

TUNKHANK TWP 2.M E TR 92, Wyoming, PA

Built 2015 Load: 39.2 t ADT: 2,004

MAINTENANCE ACCESS

Good

Over: LITTLE BEAR CREEK

NE OF LOYALSOCKVILLE, Lycoming, PA

Built 2014 Load: 39.2 t ADT: 20

PA 61 (LR 140)

Good

Over: SCHUYLKILL RIVER

NEAR INTERSECTION US209, Schuylkill, PA

Built 2015 Load: 39.2 t ADT: 21,885

PA TPK (I-276)

Good

Over: SR 0611

West of WIllow Grove Intg, Montgomery, PA

Built 2014 Load: 39.2 t ADT: 97,693

SR 2018

Good

Over: TRIB TO CATAWISSA CREEK

3.9 MI NE OF CATAWISSA, Columbia, PA

Built 2015 Load: 39.2 t ADT: 1,678

PA 741; SR 0741

Good

Over: Pequea Creek

1.25 MI.E. OF LAMPETER, Lancaster, PA

Built 2015 Load: 39.2 t ADT: 4,751

SR 8001

Good

Over: Sherrick Run

0.1 mi W from SR 0119, Westmoreland, PA

Built 2016 Load: 39.2 t ADT: 3,658

PA 994

Good

Over: SUGAR CREEK

231 FEET WEST OF SR 3025, Huntingdon, PA

Built 2016 Load: 39.2 t ADT: 335

SR 3001;OLD HBG RD

Good

Over: CONEWAGO CREEK

S OF HEIDLERSBURG, Adams, PA

Built 2016 Load: 39.2 t ADT: 1,473

SR 2020

Good

Over: BENNETTS CREEK

3 MI.SOUTHWEST OF DURELL, Bradford, PA

Built 2016 Load: 39.2 t ADT: 141

SR 0081 I-81 NB

Good

Over: SR 2039 & GARDNER CREEK

LAFLIN BORO OVER SR 2039, Luzerne, PA

Built 2016 Load: 39.2 t ADT: 26,655

PA 31

Good

Over: RAYSTOWN BR JUNIATA RIV

0.5 MI SE NEW BUENA VISTA, Bedford, PA

Built 2016 Load: 39.2 t ADT: 1,206

SR 0081 I-81 SB

Good

Over: SR 2039 & GARDNERS CREEK

LAFLIN BORO OVER SR 2039, Luzerne, PA

Built 2016 Load: 39.2 t ADT: 25,947

Narrows Road

Good

Over: CONEWAGO CREEK

CULPS CORNERS, Adams, PA

Built 2018 Load: 39.2 t ADT: 354

CARLISLE ROAD

Good

Over: HUNTERS RUN

HUNTERS RUN, Cumberland, PA

Built 2018 Load: 39.2 t ADT: 4,625

CENTER ST (SR 219)

Good

Over: Powers Run

JOHNSONBURG, Elk, PA

Built 2017 Load: 39.2 t ADT: 4,090

Rocky Mountain Rd

Good

Over: CARBAUGH RUN

AT CALEDONIA STATE PARK, Franklin, PA

Built 2018 Load: 39.2 t ADT: 1,349

MIll St (SR 2003)

Good

Over: MAHONING CREEK

FOXBURG, Jefferson, PA

Built 2018 Load: 39.2 t ADT: 1,366

Farmersville Rd

Good

Over: CONESTOGA RIVER

0.8 MI NW OF FARMERSVILLE, Lancaster, PA

Built 2018 Load: 39.2 t ADT: 2,060

BLAIN RD (SR 0017)

Good

Over: BIXLERS RUN

1.3 MI WEST OF KISTLER, Perry, PA

Built 2018 Load: 39.2 t ADT: 549

ZEDIKER STATION RD

Good

Over: BR. LITTLE CHARTIERS CK.

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 2017 Load: 39.2 t ADT: 806

SR 2018

Good

Over: PINE CREEK

1 MI NE COBURN, Centre, PA

Built 2017 Load: 39.2 t ADT: 151

SR 2087

Good

Over: INNERS RUN

1.5 MILE EAST OF JACOBUS, York, PA

Built 2017 Load: 39.2 t ADT: 579

SR 1003

Good

Over: OVER WALLIS RUN

3 MI N OF LOYALSOCKVILLE, Lycoming, PA

Built 2017 Load: 39.2 t ADT: 651

T680

Good

Over: PA Turnpike I-76

Junction T680/SR4006, Beaver, PA

Built 2017 Load: 39.2 t ADT: 1,000

US 219

Good

Over: T-519 WALTERS MILL RD

1.4 MILE SOUTH OF US 30, Somerset, PA

Built 2018 Load: 39.2 t ADT: 2,419

US 219

Good

Over: T-519 WALTERS MILL RD

1.4 MILE SOUTH OF US 30, Somerset, PA

Built 2018 Load: 39.2 t ADT: 2,427

SR 2015

Good

Over: GARDNERS CREEK

LAFLIN BORO 286 N SR2026, Luzerne, PA

Built 2018 Load: 39.2 t ADT: 1,549

SR 35-PA 35

Good

Over: EAST LICKING CREEK

1 MI SW MIFFLIN, Juniata, PA

Built 2018 Load: 39.2 t ADT: 1,953

PA 447 (LR 458)

Good

Over: Middle Branch BrodheadCr

COVEVILLE, Monroe, PA

Built 2019 Load: 39.2 t ADT: 566

SR 4008(LR 45089)

Good

Over: Tobyhanna Creek

TOBYHANNA, Monroe, PA

Built 2019 Load: 39.2 t ADT: 1,517

SR 0084 I-84 WB

Good

Over: YORK CREEK

BLMG GROVE TP .5M W TR739, Pike, PA

Built 2019 Load: 39.2 t ADT: 8,714

RIANSARES ROAD

Good

Over: COOPER RUN

2.5 MI. NW ROSECRANS, Clinton, PA

Built 2019 Load: 39.2 t ADT: 25

SR 1013

Good

Over: SINKING RUN

2.6 MI NE OF CULP, Blair, PA

Built 2019 Load: 39.2 t ADT: 530

SR0068

Good

Over: Reids Run

0.2 mi S SR 2003 Intersec, Clarion, PA

Built 2019 Load: 39.2 t ADT: 3,435

S.R.0154(TR-154)

Good

Over: Hoagland Branch

VILLAGE OF SHUNK, Sullivan, PA

Built 2019 Load: 39.2 t ADT: 383

PA 655

Good

Over: SIDELING HILL CREEK

195 FEET SOUTH OF TR 913, Fulton, PA

Built 2019 Load: 39.2 t ADT: 1,904

Showing 16,001-16,050 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.