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 1004 STONEBORO

Good

Over: OVER SR 79 NB/SB

LAKE TOWNSHIP, Mercer, PA

Built 1967 Load: 29.9 t ADT: 391

SR 11

Good

Over: OVER SECHLER RUN

2.25 MI E OF DANVILLE, Montour, PA

Built 1991 Load: 29.9 t ADT: 11,659

I-78 WB (LR 1045)

Good

Over: SO.MT.DRIVE(T-422)

I-78 OVER SO.MT.DRIVE, Northampton, PA

Built 1988 Load: 29.9 t ADT: 27,603

US 209

Good

Over: LITTLE SCHUYLKILL RIVER

EAST BROAD STREET, Schuylkill, PA

Built 1904 Load: 29.9 t ADT: 6,291

SR 0267 TR 267

Good

Over: CHOCONUT CREEK

CHOCONUT TP .3M N SR 4007, Susquehanna, PA

Built 1990 Load: 29.9 t ADT: 2,729

SR 2027

Good

Over: E BR TUNKHANNOCK CREEK

CLIFFORD TP 284 N SR2012, Susquehanna, PA

Built 1934 Load: 29.9 t ADT: 276

SR 4006

Good

Over: OVER POTTER BROOK

1.5 MI S OF POTTER BROOK, Tioga, PA

Built 1974 Load: 29.9 t ADT: 326

T-396

Good

Over: LIMESTONE RUN

ST.MARY ST IN LINNTOWN, Union, PA

Built 1979 Load: 29.9 t ADT: 500

SR 1025 PGE HOLLOW

Good

Over: OVER PAGE HALLOW RUN

GLADE TOWNSHIP, Warren, PA

Built 1964 Load: 29.9 t ADT: 76

SR 4037

Good

Over: BRANCH OF ROBINSON RUN

ROBINSON TOWNSHIP, Washington, PA

Built 1973 Load: 29.9 t ADT: 3,259

BARNER HILL RD

Good

Over: NORFOLK SOUTHERN

AT RTE 993 IN LARIMER, Westmoreland, PA

Built 1991 Load: 29.9 t ADT: 50

SR 0011 TR 11

Good

Over: TUNKHANNOCK CREEK

NICHOLSON BO .2 M S TR 92, Wyoming, PA

Built 1990 Load: 29.9 t ADT: 2,461

47th Street

Good

Over: SEPTA

S of Woodland Ave - 36J01, Philadelphia, PA

Built 1992 Load: 29.9 t ADT: 6,022

SR 0092 TR 92

Good

Over: SUTTON CREEK

EXETER TWP JCT SR 1031, Luzerne, PA

Built 1999 Load: 29.9 t ADT: 2,554

T-337 STRAUSER RD

Good

Over: RED BANK CREEK

0.1 MILES SW OF SR 3007, Jefferson, PA

Built 1999 Load: 29.9 t ADT: 250

SR 0079

Good

Over: SR 2006

AMWELL TWP, Washington, PA

Built 2001 Load: 29.9 t ADT: 12,106

T-567 SNYDER SPUR

Good

Over: CODER RUN

0.25 MILES NW OF SR 28, Jefferson, PA

Built 2000 Load: 29.9 t ADT: 40

CINDER ROAD

Good

Over: REDSTONE CREEK

VILLAGE OF LEITH, Fayette, PA

Built 2001 Load: 29.9 t ADT: 1,200

SR 99 I-99

Good

Over: SR 3042

1 MILE NORTH PORT MATILDA, Centre, PA

Built 2003 Load: 29.9 t ADT: 7,046

SR 284

Good

Over: OVER TEXAS CREEK

2.5 MI. NE OF ENGLISH CEN, Lycoming, PA

Built 2004 Load: 29.9 t ADT: 112

SR 99-I 99

Good

Over: BALD EAGLE C/SR 3040

1 MILE SOUTH PORT MATILDA, Centre, PA

Built 2006 Load: 29.9 t ADT: 6,583

T-620 WALLEY RUN

Good

Over: WALLEY RUN

2 mi N int. w/ SR 4004, Clarion, PA

Built 2004 Load: 29.9 t ADT: 50

SR 4016

Good

Over: LABORDE BRANCH

OKLAHOMA, Clearfield, PA

Built 2008 Load: 29.9 t ADT: 740

SPRINGBROOK TWP #1

Good

Over: SPRINGBROOK CREEK

1-2/10 MILE W OF ROCKDALE, Lackawanna, PA

Built 2008 Load: 29.9 t ADT: 30

T318 FALLS HILL RD

Good

Over: LEONARD CREEK

100 EAST OF SR 309, Wyoming, PA

Built 2009 Load: 29.9 t ADT: 100

Twp Road 492

Good

Over: Township Line Run

228 SE OF ALBRIGHTS RD, Westmoreland, PA

Built 2012 Load: 29.9 t ADT: 300

Roberts Road

Good

Over: Swopes Valley Run

0.3 MI W OF PA645, Schuylkill, PA

Built 2009 Load: 29.9 t ADT: 50

S Fayette Way

Good

Over: SR 576 Southern Beltway

MP 15.28 on Rt. 576, Allegheny, PA

Built 2019 Load: 30.1 t ADT: 290

NIKE SITE ROAD

Good

Over: OLD NOBLE & ROBINSON RUN

0.2 MI SW OF SR 3048, Allegheny, PA

Built 1969 Load: 30.8 t ADT: 1,786

T-763 Glade Drive

Good

Over: SR0422 EB&WB

500 feet south of T-760, Armstrong, PA

Built 1975 Load: 30.8 t ADT: 2,500

PINE GROVE RD

Good

Over: 6 MILE RUN

5430N.OF TR68, Beaver, PA

Built 1961 Load: 30.8 t ADT: 188

SPRING LN

Good

Over: TWO MILE RUN

101009 VANPORT TWP, Beaver, PA

Built 1977 Load: 30.8 t ADT: 1,180

3RD AVE RAMP

Good

Over: SR 0065

3RD AVE RAMP TO SR65 SB, Beaver, PA

Built 1975 Load: 30.8 t ADT: 1,171

PA TPK (I-476)

Good

Over: T-417

1 MI NW BELTZVILLE LAKE, Carbon, PA

Built 1956 Load: 30.8 t ADT: 24,228

PICKERING ROAD

Good

Over: PICKERING CREEK

CHARLESTOWN TWP. 3363-J4, Chester, PA

Built 1894 Load: 30.8 t ADT: 60

S.R. 4020

Good

Over: DEER LICK RUN

1.5 MI W OF ORANGEVILLE, Columbia, PA

Built 1980 Load: 30.8 t ADT: 271

SR 2009 WAYLAND RD

Good

Over: OVER LITTLE SUGAR CREEK

EAST MEAD TOWNSHIP, Crawford, PA

Built 1988 Load: 30.8 t ADT: 316

MATTER RD T-617

Good

Over: WICONISCO CREEK

.2NW LOYALTON/WICONISCO, Dauphin, PA

Built 1971 Load: 30.8 t ADT: 100

RAMP A(NB)TO I-476

Good

Over: RELOCATED MARPLE ROAD

.5MI.E.STATE ROAD 34G02, Delaware, PA

Built 1990 Load: 30.8 t ADT: 10,003

SR 3017 Pioneer dr

Good

Over: CAMPBELL RUN

1 MI S OF ST THOMAS, Franklin, PA

Built 1982 Load: 30.8 t ADT: 206

SR 0380 I-380 NB

Good

Over: SR 0690 TR 690

MOSCOW BORO OVER TR 690, Lackawanna, PA

Built 1975 Load: 30.8 t ADT: 9,765

SR 3016 DAVIS ST

Good

Over: RBMN RR & LACKA RIVER

TAYLOR BOR 200 E SR 3013, Lackawanna, PA

Built 1990 Load: 30.8 t ADT: 17,550

SR 0309 NB AND SB

Good

Over: VAUGHN ST ABANDONED RR

LUZ BORO OVER VAUGHN ST, Luzerne, PA

Built 1980 Load: 30.8 t ADT: 37,929

SR 1004

Good

Over: LYCOMING CREEK

VILLAGE OF FIELD STATION, Lycoming, PA

Built 1994 Load: 30.8 t ADT: 368

SR 3003

Good

Over: OVER BEAVER RUN

2MI.NW OF MOORESBURG, Montour, PA

Built 1941 Load: 30.8 t ADT: 376

T-843 CTY BR#3

Good

Over: BEAVER RUN

1.6 MI SE OF POTTS GROVE, Montour, PA

Built 1991 Load: 30.8 t ADT: 120

I-180 WBL

Good

Over: OVER SR 1007

2 MILES NORTH OF MILTON, Northumberland, PA

Built 1971 Load: 30.8 t ADT: 8,622

SR 1005

Good

Over: OVER DELAWARE RUN

3 MI N OF WATSONTOWN, Northumberland, PA

Built 1937 Load: 30.8 t ADT: 1,235

T-360 (Mandata Rd)

Good

Over: MOUSE CREEK

EAST OF HERNDON, Northumberland, PA

Built 1954 Load: 30.8 t ADT: 300

SR 1002

Good

Over: WELLS CREEK

FRIEDENS, Somerset, PA

Built 1949 Load: 30.8 t ADT: 271

Showing 12,801-12,850 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.