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

I-579 SB

Good

Over: N-S RR PAT LRT PAT EBSWY

Veterans Bridge, Allegheny, PA

Built 1986 Load: 22.7 t ADT: 27,514

HARKINS MILL RD

Good

Over: BRUSH CREEK

004044 HARKINS MILL BRDG, Beaver, PA

Built 1988 Load: 22.7 t ADT: 150

T539 St Paul Ch Rd

Good

Over: YELLOW CREEK

1 MI.SE.OF YELLOW CREEK, Bedford, PA

Built 1884 Load: 22.7 t ADT: 45

SR 4028(LR06032SP)

Good

Over: MILL CREEK

ST.MICHAELS ROAD, Berks, PA

Built 1987 Load: 22.7 t ADT: 2,847

I-99 / US 220 NBL

Good

Over: SR 8003 @ EXIT 45

1.75 MI.S.OF TYRONE, Blair, PA

Built 1971 Load: 22.7 t ADT: 10,584

I-99 / US 220 SBL

Good

Over: SR 8003 @ EXIT 45

1.75 MI.S.OF TYRONE, Blair, PA

Built 1971 Load: 22.7 t ADT: 9,707

SR 3019

Good

Over: SUGAR CREEK

W BURLINGTON VILLAGE, Bradford, PA

Built 1969 Load: 22.7 t ADT: 786

PA 487

Good

Over: FISHING CREEK

1.0 MI NORTH OF BENTON, Columbia, PA

Built 1980 Load: 22.7 t ADT: 2,520

APPALACHIAN DRIVE

Good

Over: NORFOLK SOUTHERN RAILRD.

1.4SE 76/81 CONRAIL, Cumberland, PA

Built 1989 Load: 22.7 t ADT: 200

SR 3037

Good

Over: CROOKED CREEK

2 MILE NORTH OF HESTON, Huntingdon, PA

Built 1961 Load: 22.7 t ADT: 689

SR 4015

Good

Over: WARRIORS MARK RUN

1.25 M.W.FRANKLINVILLE, Huntingdon, PA

Built 1962 Load: 22.7 t ADT: 73

SR 0180

Good

Over: W.B. OVER S.R. 2014

.5 MI S OF MUNCY, Lycoming, PA

Built 1973 Load: 22.7 t ADT: 6,914

RIDGE RD

Good

Over: SCHUYLKILL RIVER

200S.OF US209 NR.CUMBOLA, Schuylkill, PA

Built 2005 Load: 22.7 t ADT: 100

SR 3001

Good

Over: CEDAR RUN

VILLAGE OF LEETONIA, Tioga, PA

Built 1974 Load: 22.7 t ADT: 20

PANGBURN HOLLOW RD

Good

Over: PERRY MILL RUN

PG07 PANGBURN HOLLOW RD#7, Allegheny, PA

Built 2000 Load: 22.7 t ADT: 678

T-670 CTY BR 105

Good

Over: LYCOMING CREEK

0.2 MI. S END OF RALSTON, Lycoming, PA

Built 2002 Load: 22.7 t ADT: 204

SR 219-US 219

Good

Over: MILL ST - B&P RAILROAD

CITY OF BRADFORD, McKean, PA

Built 2007 Load: 22.7 t ADT: 6,631

FR 135

Good

Over: BEAR CREEK

2.1 MILES E OF OWLS NEST, Elk, PA

Built 1932 Load: 22.7 t ADT: 5

GRINGO INDEPEND RD

Good

Over: SR 0376 EB-WB

0.3 MI. WEST OF SR 0151, Beaver, PA

Built 1968 Load: 23.6 t ADT: 514

SR3036 BRIDGE ONLY

Good

Over: NORFOLK SOUTHERN RR

SPORTSMAN RD., Berks, PA

Built 1964 Load: 23.6 t ADT: 3,326

SCHOLLS SCHOOL RD

Good

Over: MORGAN CREEK

.5 Mi S.Tollgate 2807-D5, Bucks, PA

Built 1974 Load: 23.6 t ADT: 400

T-704 KENNEDY HILL

Good

Over: OVER UNNAMED RUN

2 MI. S. MEADVILLE, Crawford, PA

Built 1969 Load: 23.6 t ADT: 280

PA TPK (I-76)

Good

Over: LR22009 SR2007

CONEWAGO TWP, Dauphin, PA

Built 1949 Load: 23.6 t ADT: 24,423

T-375 RIDGE ROAD

Good

Over: MEADOW RUN

NEAR DAVISTOWN, Greene, PA

Built 1994 Load: 23.6 t ADT: 50

PA TPK (I-476)

Good

Over: DIVISION STREET

SCRANTON CITY, Lackawanna, PA

Built 1958 Load: 23.6 t ADT: 6,895

BRIDGE 3004 T-696

Good

Over: OVER MILL CREEK

MILL RUN RD SPRINGFIELD, Mercer, PA

Built 1987 Load: 23.6 t ADT: 59

MAIN ST/BERGER RD

Good

Over: GLENDON CREEK

0.1 M. SOUTH OF SR 2012, Northampton, PA

Built 1979 Load: 23.6 t ADT: 300

I-180 EBL

Good

Over: I-180 OVER S.R.54

5.5 MILES SOUTH OF MUNCY, Northumberland, PA

Built 1970 Load: 23.6 t ADT: 7,799

I-180 WBL

Good

Over: I-180 OVER S.R. 54

5.5 MILES SOUTH OF MUNCY, Northumberland, PA

Built 1970 Load: 23.6 t ADT: 8,015

SR 328

Good

Over: OVER HAMMOND CREEK

3.5 MI W OF MILLERTON, Tioga, PA

Built 1994 Load: 23.6 t ADT: 1,330

SR 1012 LIBERTY ST

Good

Over: OVER AKELEY RUN NORTH BR

PINE GROVE TOWNSHIP, Warren, PA

Built 1992 Load: 23.6 t ADT: 1,725

T-596 FENELTON RD

Good

Over: BUFFALO CREEK

BTW T653 & T669, Butler, PA

Built 2005 Load: 23.6 t ADT: 150

SR 0528

Good

Over: SR 0422 EB & WB

.7 mi. North of SR 0488, Butler, PA

Built 2009 Load: 23.6 t ADT: 1,245

T-569

Good

Over: Ruff Creek

East of Waynesburg, Greene, PA

Built 1940 Load: 23.6 t ADT: 47

RAMP M

Good

Over: PACKER AVE;TWENTIETH ST

RAMP M 37D06, Philadelphia, PA

Built 1957 Load: 24.3 t ADT: 5,101

DAY USE ACCESS RD

Good

Over: IVES RUN

TIOGA-HAMMOND LAKES, Tioga, PA

Built 1979 Load: 24.3 t ADT: 700

US 222NB(LR 157)

Good

Over: SR 8009SB ON RAMP TO 222

2 MI S OF KUTZTOWN, Berks, PA

Built 1972 Load: 24.5 t ADT: 11,547

FISHER MILL STRM R

Good

Over: PLUM CREEK

WEST OF PLUM CREEK ROAD, Berks, PA

Built 1976 Load: 24.5 t ADT: 184

SR 3006

Good

Over: SCHRADER BR TOWANDA CRK

4 MILE SW 0F POWELL, Bradford, PA

Built 1969 Load: 24.5 t ADT: 80

PA TPK (I-476)

Good

Over: SR 2012

1.5 MI NW BELTZVILLE LAKE, Carbon, PA

Built 1956 Load: 24.5 t ADT: 24,228

AVONDALE NEW LONDN

Good

Over: MIDDLE WHITE CLAY CREEK

LONDON GROVE TWP. 45J13, Chester, PA

Built 1987 Load: 24.5 t ADT: 2,596

MARLBORO ROAD

Good

Over: POCOPSON CREEK

1.0 MI S OF SR842 3692-A7, Chester, PA

Built 1970 Load: 24.5 t ADT: 850

SR 4012 SHADELAND

Good

Over: OVER STONE RUN

BEAVER TOWNSHIP, Crawford, PA

Built 1989 Load: 24.5 t ADT: 176

1013 Good Hope Rd

Good

Over: I-81 NB; SR 0081

S OF MT ZION HAMDEN TWP, Cumberland, PA

Built 1973 Load: 24.5 t ADT: 5,064

SR 2014 STEWART RD

Good

Over: OVER FRENCH CREEK S BR

CONCORD TOWNSHIP, Erie, PA

Built 1982 Load: 24.5 t ADT: 275

I-376 WB

Good

Over: 8008 RP.E & SHENANGO RIV

376WB O/ RP E SHENANGO R, Lawrence, PA

Built 1975 Load: 24.5 t ADT: 7,259

I-81 NB (LR 1005)

Good

Over: SR 4009 (LR 53030)

2 MI.S.OF EXIT 112(34), Schuylkill, PA

Built 1969 Load: 24.5 t ADT: 10,736

PA 901 (LR 53057)

Good

Over: MAHANOY CREEK

1 MI. S. OF LAVELLE, Schuylkill, PA

Built 1969 Load: 24.5 t ADT: 9,757

SR 3023

Good

Over: COXES CREEK

.3 MI.N.OF BANDO, Somerset, PA

Built 1973 Load: 24.5 t ADT: 134

SR 3008

Good

Over: TUNKHANNOCK CREEK

TUNKHANNOCK BO @ JCT TR 6, Wyoming, PA

Built 2000 Load: 24.5 t ADT: 4,797

Showing 12,551-12,600 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.