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-748 CREEK ROAD

Fair

Over: MAHONING CREEK

2.6 Miles N or SR-1018, Armstrong, PA

Built 1994 Load: 66.2 t ADT: 150

SR 2010

Fair

Over: SHAFFERS CREEK

1 MI.S.OF CLEARVILLE, Bedford, PA

Built 1929 Load: 66.2 t ADT: 81

PA TPK (I-76)

Fair

Over: SR 0030; US 30 (LR 119)

NEAR TR30 & TR31 JUNCTION, Bedford, PA

Built 1939 Load: 66.2 t ADT: 30,600

US 6

Fair

Over: SUGAR CREEK

0.5 MI E OF LUTHER MILLS, Bradford, PA

Built 1925 Load: 66.2 t ADT: 3,390

SR 4017

Fair

Over: BRACE CREEK

0.2 MI.N. OF LEONA, Bradford, PA

Built 1938 Load: 66.2 t ADT: 361

SR0038

Fair

Over: SOUTH FORK SCRUBGRASS CR

CHERRY VALLEY BORO, Butler, PA

Built 1986 Load: 66.2 t ADT: 2,189

SR0066

Fair

Over: PINEY CREEK

LIMESTONE, Clarion, PA

Built 1998 Load: 66.2 t ADT: 3,765

ON TSR 430

Fair

Over: BIG PLUM RUN

SWISSDALE, Clinton, PA

Built 1973 Load: 66.2 t ADT: 188

SR 8003; RAMP A

Fair

Over: I-81; SR 0081

INTER OF I81 & US22, Dauphin, PA

Built 1977 Load: 66.2 t ADT: 2,859

MID-CO EXPY NB

Fair

Over: SEPTA 14H9/3477D4

NEAR VILLANOVA 14H09, Delaware, PA

Built 1990 Load: 66.2 t ADT: 45,310

BALTIMORE PIKE

Fair

Over: RIDLEY CREEK

1MI.WEST MEDIA 34A05, Delaware, PA

Built 1947 Load: 66.2 t ADT: 16,222

SR 0084 I-84 EB

Fair

Over: SR 2005

JEFFERSON TWP OVR SR 2005, Lackawanna, PA

Built 1976 Load: 66.2 t ADT: 7,167

GROVE ST

Fair

Over: NESHANNOCK CREEK

400 E OF INT.W/SR 0018, Lawrence, PA

Built 1950 Load: 66.2 t ADT: 5,366

SR 287

Fair

Over: OVER LARRYS CR

VILLAGE OF LARRYVILLE, Lycoming, PA

Built 1990 Load: 66.2 t ADT: 3,201

T-317 HILLSIDE AVE

Fair

Over: TWO MILE RUN

500 FT WEST OF US 6, McKean, PA

Built 1940 Load: 66.2 t ADT: 100

SCHUYLK EXWY (EB)

Fair

Over: RAMP G FROM WB 76

CITY LINE INTERCH. 40J01, Montgomery, PA

Built 1953 Load: 66.2 t ADT: 37,404

P-TOWN X-WAY (WB)

Fair

Over: EGYPT ROAD

OAKS 27E5/3253J9, Montgomery, PA

Built 1982 Load: 66.2 t ADT: 30,988

SR 4011(LR 53027)

Fair

Over: RAUSCH CREEK

1.7 MI. S. OF VALLEY VIEW, Schuylkill, PA

Built 1912 Load: 66.2 t ADT: 1,257

2nd Street

Fair

Over: Luzerne Street

at Luzerne Steet 29A01, Philadelphia, PA

Built 1926 Load: 66.2 t ADT: 8,800

SR 0405

Fair

Over: NORFOLK SOUTHER RR T-630

VILLAGE OF DEWART, Northumberland, PA

Built 1997 Load: 66.2 t ADT: 2,557

TROLLEY ROAD

Fair

Over: IRISH CREEK

1 MILE SW OF CENTERPORT, Berks, PA

Built 2007 Load: 66.2 t ADT: 100

Osborne Street

Fair

Over: Crooked Run

S. of Westghse Ave/SR 148, Allegheny, PA

Built 1940 Load: 66.2 t ADT: 200

PA16; SR0016

Fair

Over: TOMS CREEK

4 MI S OF FAIRFIELD, Adams, PA

Built 1954 Load: 67.1 t ADT: 9,289

SR2062

Fair

Over: ELDERS RUN

EAST OF SCHENLEY, Armstrong, PA

Built 1954 Load: 67.1 t ADT: 1,039

SR 2008

Fair

Over: PLUM CREEK

1.5 MI.NE.ROARING SPRING, Blair, PA

Built 1940 Load: 67.1 t ADT: 474

SR 2016

Fair

Over: KING CREEK

1.5 MI E STANDING STONE, Bradford, PA

Built 1956 Load: 67.1 t ADT: 205

Hill Road

Fair

Over: Deep Run

2.5 Mi E. PA-611 2810-A5, Bucks, PA

Built 1981 Load: 67.1 t ADT: 100

LOST RUN RD

Fair

Over: MOSQUITO CREEK

3 MI SW OF QUEHANNA HWY, Clearfield, PA

Built 1936 Load: 67.1 t ADT: 15

SANDY RUN ROAD

Fair

Over: DRURY RUN

150 FT EAST OF SR 144, Clinton, PA

Built 1934 Load: 67.1 t ADT: 20

SR 254

Fair

Over: OVER GREEN CREEK

VILLAGE OF ROHRSBURG, Columbia, PA

Built 1992 Load: 67.1 t ADT: 2,173

I-83;SR 0083

Fair

Over: 2018

NEW CUMBERLAND, Cumberland, PA

Built 1953 Load: 67.1 t ADT: 59,616

US 422; SR 0422

Fair

Over: US 322; SR 0322

1 MI. E. HUMMELSTOWN, Dauphin, PA

Built 1953 Load: 67.1 t ADT: 22,263

GOSHEN ROAD

Fair

Over: CRUM CREEK

NEWTOWN TOWNSHIP 24F05, Delaware, PA

Built 1941 Load: 67.1 t ADT: 4,191

SR 0438 TR 438

Fair

Over: BR TUNKHANNOCK CREEK

BENTON TWP 1.2 M E TR 407, Lackawanna, PA

Built 1990 Load: 67.1 t ADT: 403

SR 4009

Fair

Over: Eliminated RR Tracks

DILLERVILLE, Lancaster, PA

Built 1946 Load: 67.1 t ADT: 15,708

T-324 MILLER RD

Fair

Over: CONOY CREEK

450 FT SE OF SR 241, Lancaster, PA

Built 1979 Load: 67.1 t ADT: 260

I-78(LR 1045)

Fair

Over: PA.TURNPIKE(I-476)NE EXT

OVER PA.TURNPIKE, Lehigh, PA

Built 1988 Load: 67.1 t ADT: 28,618

PA 309 NB (LR 781)

Fair

Over: SR 2023 (LR 39107)

PA.309NB OVER VERA CRUZ, Lehigh, PA

Built 1958 Load: 67.1 t ADT: 19,179

SR 0309 TR 309

Fair

Over: EVANS STREET

PRINGLE BO OVER EVANS ST, Luzerne, PA

Built 1980 Load: 67.1 t ADT: 29,899

T-470 GARDEAU ROAD

Fair

Over: SINNEMAHONING PORTAGE CR

3 MI NORTH OF SR 155, McKean, PA

Built 1930 Load: 67.1 t ADT: 40

OLD YORK ROAD

Fair

Over: PENNYPACK CREEK

HATBORO 3259-C03, Montgomery, PA

Built 1952 Load: 67.1 t ADT: 13,302

PA 309 (LR 185)

Fair

Over: LITTLE SCHUYLKILL RIVER

NORTH END OF TAMAQUA, Schuylkill, PA

Built 1940 Load: 67.1 t ADT: 20,316

SR 0070

Fair

Over: TWP RD 957 (OHIO AVE)

CANTON TOWNSHIP, Washington, PA

Built 1960 Load: 67.1 t ADT: 22,341

SR 0079

Fair

Over: SR 1045

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1964 Load: 67.1 t ADT: 22,918

SR 0079

Fair

Over: SR 1045

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1964 Load: 67.1 t ADT: 22,327

SR 2020

Fair

Over: HORN RUN

MARIANNA BOROUGH, Washington, PA

Built 1934 Load: 67.1 t ADT: 1,168

61st Street

Fair

Over: CSX

N of Woodland Ave 36F03, Philadelphia, PA

Built 1985 Load: 67.1 t ADT: 1,700

Wood Street

Fair

Over: North 5th Street

Wood St over N 5th St, Philadelphia, PA

Built 1933 Load: 67.1 t ADT: 100

WILLIAMS ROAD T490

Fair

Over: BR LITTLE MESHOPPEN CRK

MESHOPPEN TOWNSHIP, Wyoming, PA

Built 1964 Load: 67.1 t ADT: 30

SR 3015

Fair

Over: MUDDY RUN

GEORGES TOWNSHIP, Fayette, PA

Built 1929 Load: 67.4 t ADT: 1,088

Showing 11,851-11,900 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.