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-401 HAMMOND RD

Fair

Over: SOUTH BRANCH GLADE RUN

INT. THIRD DEGREE RD., Butler, PA

Built 2004 Load: 54.4 t ADT: 100

T-341 CRAB RUN RD

Fair

Over: CRAB RUN

0.3 MI N of T-399, Butler, PA

Built 1920 Load: 54.4 t ADT: 350

PA 240

Fair

Over: PEGS RUN

0.3 MILE WEST OF TR 219, Cambria, PA

Built 1938 Load: 54.4 t ADT: 1,039

PA 869

Fair

Over: S FORK BR L CONEMAUGH R

1.2 MILE EAST OF TR 160, Cambria, PA

Built 1963 Load: 54.4 t ADT: 1,451

SR 46 PA 46

Fair

Over: NORTH CREEK

LOCKWOOD, Cameron, PA

Built 1985 Load: 54.4 t ADT: 1,408

PA TPK (I-476)

Fair

Over: BLACK CREEK

1 MI S OF POCONO INTERCH., Carbon, PA

Built 1955 Load: 54.4 t ADT: 24,228

BETHEL CHURCH ROAD

Fair

Over: PIGEON CREEK

NEAR BROWNSBACK 7D6, Chester, PA

Built 1969 Load: 54.4 t ADT: 3,201

SPRING DELL ROAD

Fair

Over: BUCK RUN

NEAR GUM TREE 37G02, Chester, PA

Built 1969 Load: 54.4 t ADT: 1,371

SR2012

Fair

Over: PINEY CREEK

RAPP ROAD, Clarion, PA

Built 1961 Load: 54.4 t ADT: 74

SR 4003

Fair

Over: LIMESTONE RUN

HELVETIA, Clearfield, PA

Built 1989 Load: 54.4 t ADT: 139

SR 198

Fair

Over: OVER WOODCOCK CREEK

WOODCOCK TOWNSHIP, Crawford, PA

Built 1972 Load: 54.4 t ADT: 1,598

PA 74; SR 0074

Fair

Over: YELLOW BREECHES CREEK

BRANDTSVILLE, Cumberland, PA

Built 1932 Load: 54.4 t ADT: 7,466

RAMP C-C;SR 8001

Fair

Over: FR ST.SR 3009 SUSQ.RIVER

N.END WADE BRIDGE, Dauphin, PA

Built 1972 Load: 54.4 t ADT: 3,295

WEST CHESTER PIKE

Fair

Over: DARBY CREEK

1MI.WEST MANOA 26A07, Delaware, PA

Built 1957 Load: 54.4 t ADT: 63,344

MID-COUNTY EXWY.SB

Fair

Over: RAMP N-L;OFF TO TR-30

NEAR VILLANOVA 14H10, Delaware, PA

Built 1990 Load: 54.4 t ADT: 41,310

MID-COUNTY EXWY.NB

Fair

Over: RAMP 2 N.B.TO MACDADE

SO.MC DAVID BLVD. 43J01, Delaware, PA

Built 1987 Load: 54.4 t ADT: 24,868

SR 2011

Fair

Over: BRANDY CREEK

BRANDY CAMP, Elk, PA

Built 1940 Load: 54.4 t ADT: 378

SR 3017 WELLSBURG

Fair

Over: OVER TEMPLE CREEK

ELK CREEK TOWNSHIP, Erie, PA

Built 1961 Load: 54.4 t ADT: 560

T-583 CROSS ROAD

Fair

Over: DOYLESTOWN STREAM

1.1 MI NW OF SR 075, Franklin, PA

Built 1968 Load: 54.4 t ADT: 210

I-70 EBL

Fair

Over: SR 915&3023; L.BRUSH CRK

OVER PA 915 AT EXIT 151, Fulton, PA

Built 1963 Load: 54.4 t ADT: 4,916

I-70 WBL

Fair

Over: PA 915 & L. BRUSH CREEK

OVER TR 915 AT EXIT 151, Fulton, PA

Built 1963 Load: 54.4 t ADT: 6,649

PA 915

Fair

Over: LITTLE BRUSH CREEK

0.6 MI S OF AKERSVILLE, Fulton, PA

Built 1929 Load: 54.4 t ADT: 235

T-379 ROCK HILL RD

Fair

Over: COVE CREEK

3.5 MI.S.MCCONNELLSBURG, Fulton, PA

Built 1995 Load: 54.4 t ADT: 56

SR 0081 I-81 SB

Fair

Over: SR 0502 TR 502

MOOSIC BORO OVER TR 502, Lackawanna, PA

Built 1955 Load: 54.4 t ADT: 28,205

SR 6006

Fair

Over: FALL BROOK

CRBNDALE CTY 1M W SR 1041, Lackawanna, PA

Built 1984 Load: 54.4 t ADT: 12,480

SR 3016 DAVIS ST

Fair

Over: N.S. RR

SCRANTN CTY .2M E SR 3013, Lackawanna, PA

Built 1990 Load: 54.4 t ADT: 17,550

PA TPK (I-476)

Fair

Over: SM Brook & Aband. RR

MOOSIC BOROUGH, Lackawanna, PA

Built 1955 Load: 54.4 t ADT: 6,575

US 30 WB; SR 0030

Fair

Over: ABANDONED NORFOLK SOUTH

2 MI. E. OF COLUMBIA, Lancaster, PA

Built 1970 Load: 54.4 t ADT: 24,151

US 30 EB; SR 0030

Fair

Over: ABANDONED RAILROAD

2 MI.E. OF COLUMBIA, Lancaster, PA

Built 1970 Load: 54.4 t ADT: 24,410

T-809 TROUT RUN RD

Fair

Over: DONEGAL CREEK

2000 FT WEST OF SR 4017, Lancaster, PA

Built 1973 Load: 54.4 t ADT: 200

REFTON RD

Fair

Over: BEAVER CREEK

1/2 MI SOUTH OF SR 3040, Lancaster, PA

Built 1975 Load: 54.4 t ADT: 620

Cumberland St

Fair

Over: Norfolk Southern R.R.

EAST END OF LEBANON, Lebanon, PA

Built 1942 Load: 54.4 t ADT: 16,972

SOUTH 12TH STREET

Fair

Over: QUITTAPHILLA CREEK

150 S OF CUMBERLAND ST, Lebanon, PA

Built 1981 Load: 54.4 t ADT: 4,000

US 22(LR 771)

Fair

Over: TWP.RD.603* 15TH STREET

15TH ST.INTERCHANGE, Lehigh, PA

Built 1953 Load: 54.4 t ADT: 76,351

I-78(LR 1045)

Fair

Over: T-572(BLUE BARN RD.)

OVER BLUEBARN RD.(T-572), Lehigh, PA

Built 1988 Load: 54.4 t ADT: 28,618

SR 3015 (LR 39047)

Fair

Over: SR 0078(LR 443)

ADAMS RD.& WEISS RD., Lehigh, PA

Built 1958 Load: 54.4 t ADT: 3,681

SR 4014 (LR 39052)

Fair

Over: FELLS CREEK

LAURYS BRIDGE, Lehigh, PA

Built 1920 Load: 54.4 t ADT: 247

S.R. 0180 EBL

Fair

Over: OVER RAMP A&B (HEPBURN )

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1972 Load: 54.4 t ADT: 18,039

SR 180 WBL

Fair

Over: MILLERS RUN & T480 ROAD

.5 M E WLLMSPRT CTY LINE, Lycoming, PA

Built 1982 Load: 54.4 t ADT: 16,820

SR 2024

Fair

Over: OVER MILLERS RUN

2 MI.NORTH OF FAXON, Lycoming, PA

Built 1966 Load: 54.4 t ADT: 1,815

SR 4003 GOOD HOPE

Fair

Over: OVER BIG RUN TRIB

WEST SALEM TOWNSHIP, Mercer, PA

Built 1914 Load: 54.4 t ADT: 483

SR 2008

Fair

Over: JACKS CREEK

2 MILE NORTH EAST WAGNER, Mifflin, PA

Built 1937 Load: 54.4 t ADT: 357

PA 191

Fair

Over: I-80

BROAD ST.OVER I-80, Monroe, PA

Built 1959 Load: 54.4 t ADT: 5,317

SCHUYLKILL EXPWAY.

Fair

Over: NORFOLK SOUTHERN

FLAT ROCK TUNNEL 36D10, Montgomery, PA

Built 1985 Load: 54.4 t ADT: 97,940

DEKALB PIKE

Fair

Over: SCHUYLKILL EXPRESSWAY

K OF P 34B1/3366G7, Montgomery, PA

Built 1950 Load: 54.4 t ADT: 28,745

HENDRICKS ROAD

Fair

Over: MACOBY CREEK

2917-E1, Montgomery, PA

Built 1932 Load: 54.4 t ADT: 175

T-439 TELESCOPE RD

Fair

Over: PINE CREEK

700 FT EAST OF SR 449, Potter, PA

Built 1902 Load: 54.4 t ADT: 35

SR 2005

Fair

Over: ELK LICK CREEK

2 MI.W.OF SUMMIT MILLS, Somerset, PA

Built 1939 Load: 54.4 t ADT: 333

PA TPK (I-76)

Fair

Over: SR 0160 (LR 55045)

WEST OF ALLEGHENY TUNNEL, Somerset, PA

Built 1939 Load: 54.4 t ADT: 29,452

SR 0087

Fair

Over: LOYALSOCK CREEK

BORO OF FORKSVILLE, Sullivan, PA

Built 1937 Load: 54.4 t ADT: 1,010

Showing 11,101-11,150 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.