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-547

Good

Over: TEED RUN

ELMER, Potter, PA

Built 2013 Load: 33.4 t ADT: 50

SR 0066

Good

Over: TAYLOR RUN

6 MI S FORD CITY, Armstrong, PA

Built 2013 Load: 33.4 t ADT: 2,201

T-468 ROSS HILL RD

Good

Over: PENNS CREEK

50 FT WEST OF SR 2012, Centre, PA

Built 2013 Load: 33.4 t ADT: 272

T613 OLD RTE 22 RD

Good

Over: ROBINSON RUN

2.5 MI S OF ALEXANDRIA, Huntingdon, PA

Built 2013 Load: 33.4 t ADT: 785

SR 4070

Good

Over: PA TPK (I-76)

East of Butler Valley Int, Allegheny, PA

Built 2013 Load: 33.4 t ADT: 4,546

SR 4009

Good

Over: FOX RUN

NORTHERN CAMBRIA BORO, Cambria, PA

Built 2014 Load: 33.4 t ADT: 976

TR 171 MAIN STREET

Good

Over: DRINKERS CREEK

SUSQHNA BORO 150 E TR 92, Susquehanna, PA

Built 2014 Load: 33.4 t ADT: 1,886

HOBBIE-WAPWALLO RD

Good

Over: WAPWALLOPEN CREEK

SOUTH OF CREEK ROAD, Luzerne, PA

Built 2015 Load: 33.4 t ADT: 200

SR 641 Newville Rd

Good

Over: Conodoguinet Creek

0.3 MI WEST OF LR 21062, Cumberland, PA

Built 2015 Load: 33.4 t ADT: 2,212

PA 913

Good

Over: SHOUP RUN

91 FEET WEST FROM SR 3013, Huntingdon, PA

Built 2015 Load: 33.4 t ADT: 2,043

SR 173 W.ADAM ST

Good

Over: OVER FRENCH CREEK

FAIRFIELD TWP, Crawford, PA

Built 2015 Load: 33.4 t ADT: 3,958

GUYS RUN RD

Good

Over: GUYS RUN

1/2 MI. N. of SR 28, Allegheny, PA

Built 2016 Load: 33.4 t ADT: 3,661

WALKER ROAD (T431)

Good

Over: TROUT CREEK

0.5Mi W PA-252 3366-A8, Chester, PA

Built 2016 Load: 33.4 t ADT: 2,372

T-344 BarnettsRnRd

Good

Over: Barnetts Run

2.0 MI SW of Needmore, Fulton, PA

Built 2016 Load: 33.4 t ADT: 30

Lancaster Road

Good

Over: Camp Run

850 E of Int. Camp Run R, Beaver, PA

Built 2016 Load: 33.4 t ADT: 73

SR 1035; TWP RD

Good

Over: Middle Creek

0.5 MILE S HOPELAND, Lancaster, PA

Built 2016 Load: 33.4 t ADT: 1,118

W Warren Rd

Good

Over: SHEPPARD RUN

CUSTER CITY, McKean, PA

Built 2016 Load: 33.4 t ADT: 1,404

SR 244

Good

Over: ELLISBURG CREEK

ELLISBURG, Potter, PA

Built 2016 Load: 33.4 t ADT: 217

INTERSTATE 95

Good

Over: RAMP C & PRINCETON AVE

1/4 MI. S. RTE 73 3482E7, Philadelphia, PA

Built 2016 Load: 33.4 t ADT: 218,280

I-95; RAMP F & B

Good

Over: NEW STATE ROAD

NEAR PRINCETON AVE 3482D7, Philadelphia, PA

Built 2016 Load: 33.4 t ADT: 251,200

Breakneck Rd

Good

Over: Branch of Breakneck Run

0.5 M. East of SR 1019, Fayette, PA

Built 2017 Load: 33.4 t ADT: 845

MORROW RD (SR3008)

Good

Over: MCLAUGHLIN RUN

200W.OF INTER.W/SR 3004, Allegheny, PA

Built 2017 Load: 33.4 t ADT: 2,862

Clarksburg Rd

Good

Over: Marshall Run

Conemaugh Township, Indiana, PA

Built 2017 Load: 33.4 t ADT: 402

SR 549

Good

Over: OVER SEELEY CREEK

1 MI N OF JOBS CORNERS, Tioga, PA

Built 2017 Load: 33.4 t ADT: 1,345

SR 62 HUNTER STA.

Good

Over: OVER ALLEGHENY RIVER

TIONESTA TOWNSHIP, Forest, PA

Built 2017 Load: 33.4 t ADT: 969

US 219

Good

Over: SR2027 & TRIB CASSELMAN

PINE HILL SB, Somerset, PA

Built 2018 Load: 33.4 t ADT: 2,038

SR 4017

Good

Over: Muddy Creek

750ft N SR 422 Intersect., Butler, PA

Built 2018 Load: 33.4 t ADT: 687

SR 2015

Good

Over: SWEET ROOT CREEK

2 MI SE OF RAINSBURG, Bedford, PA

Built 2018 Load: 33.4 t ADT: 289

Buck Run Road

Good

Over: E. Br. Clarion River

Elk State Forest, McKean, PA

Built 2019 Load: 33.4 t ADT: 10

Montgomery Trail

Good

Over: Trout Run

Lurgan Twp, Franklin, PA

Built 2019 Load: 33.4 t ADT: 30

Straight Creek Rd

Good

Over: Straight Creek

Elk State Forest, Elk, PA

Built 2019 Load: 33.4 t ADT: 10

PA 913

Good

Over: GREAT TROUGH CREEK

.4 M.E.SR3019 ROBERTSDALE, Huntingdon, PA

Built 2020 Load: 33.4 t ADT: 1,527

SR 215 CHURCH ST

Good

Over: OVER SR 90 EB/WB

SPRINGFIELD TOWNSHIP, Erie, PA

Built 2021 Load: 33.4 t ADT: 1,127

SR 62

Good

Over: OVER LENHART RUN

PLEASANT TOWNSHIP, Warren, PA

Built 2023 Load: 33.4 t ADT: 1,125

SR 1015

Good

Over: TRIB CONEWAGO CREEK

1 MI.S.E. OF HEIDLERSBURG, Adams, PA

Built 1992 Load: 33.6 t ADT: 888

SR 3011

Good

Over: MARSH RUN

.5 MI N OF HILLTOWN, Adams, PA

Built 1991 Load: 33.6 t ADT: 3,313

SR 0028 NB

Good

Over: PA TURNPIKE

SR 28 NB OVER TURNPIKE, Allegheny, PA

Built 1970 Load: 33.6 t ADT: 24,368

PRKWY CENTER RAMP

Good

Over: SR 0376 EB WB

0.4 MI. S.E. OF SR 0121, Allegheny, PA

Built 1986 Load: 33.6 t ADT: 1,685

T-722 SHANNOCK RD

Good

Over: TRIB TO COWANSHANNOCK CR

170 feet south of SR 0085, Armstrong, PA

Built 1962 Load: 33.6 t ADT: 1

MERCER RD

Good

Over: CONNOQUENESSING CREEK

SB @ INTER.W/SR 0288, Beaver, PA

Built 1976 Load: 33.6 t ADT: 4,627

SR 1006

Good

Over: GREYS RUN

3 MI.E. OF EVERETT, Bedford, PA

Built 1965 Load: 33.6 t ADT: 90

T669 GORSUCH ROAD

Good

Over: GLADDENS RUN

0.4 MI.S.OF STRINGTOWN, Bedford, PA

Built 2002 Load: 33.6 t ADT: 43

CHERRY ROAD

Good

Over: BRANCH OF TOHICKON CREEK

ACROSS MAIRNE SER. 07F07, Bucks, PA

Built 1984 Load: 33.6 t ADT: 1,702

SR0008 NB&SB

Good

Over: SR0422 EB&WB

BON AIRE, Butler, PA

Built 1960 Load: 33.6 t ADT: 9,294

SR 1021

Good

Over: TRIB. TO CLEAR CREEK

VILLAGE OF BEAVER VALLEY, Cambria, PA

Built 1965 Load: 33.6 t ADT: 2,041

RESERVOIR ROAD

Good

Over: TRIB TO CHESTER CREEK

0.5 Mi N of PA-3 3584-C5, Chester, PA

Built 1920 Load: 33.6 t ADT: 1,575

ON TSR 599

Good

Over: BITNER RUN

BEECH CREEK, Clinton, PA

Built 1996 Load: 33.6 t ADT: 226

SR 1008

Good

Over: OVER N BR OF BRIAR CR

VILLAGE OF FOWLERSVILLE, Columbia, PA

Built 1984 Load: 33.6 t ADT: 1,899

SR 1020

Good

Over: OVER HUNTINGTON CREEK

1.5 MI EAST OF FORKS, Columbia, PA

Built 1961 Load: 33.6 t ADT: 625

SR 1102 FOX ROAD

Good

Over: OVER SR 79 NB

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1969 Load: 33.6 t ADT: 75

Showing 13,451-13,500 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.