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

RAILROAD ST. BR 42

Good

Over: SOUTH FORK SUGAR CREEK

RAILROAD ST. TROY BORO, Bradford, PA

Built 1990 Load: 51.7 t ADT: 1,000

UNION ROAD

Good

Over: BRANCH TOHICKON CREEK

S.OF RICHLANDTOWN 08E10, Bucks, PA

Built 1990 Load: 51.7 t ADT: 2,481

SR 80-I 80

Good

Over: T-339

2 MI W EXIT 173, Clinton, PA

Built 1969 Load: 51.7 t ADT: 11,545

COUNTY LINE ROAD

Good

Over: BALDWIN BRANCH

250 FT NORTH OF BENSON RD, Clinton, PA

Built 1999 Load: 51.7 t ADT: 20

T-467 CTY BR#164

Good

Over: BRIAR CREEK

BRIAR CREEK BOROUGH, Columbia, PA

Built 1989 Load: 51.7 t ADT: 500

SR 77 STATE STREET

Good

Over: OVER OIL CREEK E BRANCH

SPARTA TOWNSHIP, Crawford, PA

Built 1988 Load: 51.7 t ADT: 1,282

T-448

Good

Over: PA TPK (I-76)

WEST PENNSBORO TWP, Cumberland, PA

Built 1939 Load: 51.7 t ADT: 200

MID-COUNTY EXWY-NB

Good

Over: ROSE VALLEY ROAD

ROSE VALLEY ROAD 34G10, Delaware, PA

Built 1989 Load: 51.7 t ADT: 34,047

VALLEY ROAD

Good

Over: ROCKY RUN

.25 Mi NW US-1 ADC 18-E8, Delaware, PA

Built 1995 Load: 51.7 t ADT: 1,012

POTTER STREET

Good

Over: INTERSTATE 95; CSX R.R.

900 N of PA-320 3807-C3, Delaware, PA

Built 1963 Load: 51.7 t ADT: 1,800

RAMP S-L(SB OFF)

Good

Over: RAMP N-L (NB OFF TO 30)

NEAR VILLANOVA 14H10, Delaware, PA

Built 1990 Load: 51.7 t ADT: 11,702

SR0119 NB

Good

Over: SR0110 EB&WB

BLAIS NB, Indiana, PA

Built 1970 Load: 51.7 t ADT: 2,824

SR0119 SB

Good

Over: SR0110 EB&WB

BLAIS SB, Indiana, PA

Built 1970 Load: 51.7 t ADT: 4,408

SR 0081 I-81

Good

Over: LACK CO RR & LACK RIVER

SCRANTON OVER RR&LACK RVR, Lackawanna, PA

Built 1958 Load: 51.7 t ADT: 49,634

SR 0084 I-84 EB

Good

Over: TIGUE STREET

DUNMORE BORO OVR TIGUE ST, Lackawanna, PA

Built 1996 Load: 51.7 t ADT: 23,400

US 22(LR 771)

Good

Over: T-638(IRVING ST.)

US 22 OVER IRVING ST., Lehigh, PA

Built 1952 Load: 51.7 t ADT: 81,907

OLD MILL RD

Good

Over: TRIB.TO LITTLE TROUT CK.

NORTHEAST OF SR 4022, Lehigh, PA

Built 1914 Load: 51.7 t ADT: 2,200

SR 4016

Good

Over: MARSH CREEK

HUNTINGTN TP .4M E SR4019, Luzerne, PA

Built 1936 Load: 51.7 t ADT: 210

SR 0287

Good

Over: OVER LITTLE PINE CREEK

VILLAGE OF ENGLISH CENTER, Lycoming, PA

Built 1996 Load: 51.7 t ADT: 642

SR 3004

Good

Over: OVER MOSQUITO CREEK

.50 MI S OF DUBOISTOWN, Lycoming, PA

Built 1978 Load: 51.7 t ADT: 449

T-548

Good

Over: LITTLE MILL CREEK

3.3 MI. E. OF FARRAGUT, Lycoming, PA

Built 1989 Load: 51.7 t ADT: 75

BRIDGE 2005 T-603

Good

Over: OVER COOLSPRINGS CREEK

N.MILL RD. COOLSPRING TWP, Mercer, PA

Built 1984 Load: 51.7 t ADT: 78

BRIDGE 406 T-718

Good

Over: OVER BLACK RUN

OLD PERRY HWY SANDY CREEK, Mercer, PA

Built 1986 Load: 51.7 t ADT: 78

ON TSR 819

Good

Over: LAUREL CREEK

MILROY, Mifflin, PA

Built 1975 Load: 51.7 t ADT: 1,157

FIRE LANE ROAD

Good

Over: SAUCON CREEK

0.2 MILE WEST OF PA 412, Northampton, PA

Built 1967 Load: 51.7 t ADT: 400

SR 225

Good

Over: OVER FIDDLERS RUN

VILLAGE OF MANDATA, Northumberland, PA

Built 1995 Load: 51.7 t ADT: 4,184

T-798

Good

Over: S. BR. OF ROARING CREEK

E OF ELYSBURG, Northumberland, PA

Built 1903 Load: 51.7 t ADT: 250

DEVER HOLLOW ROAD

Good

Over: RACCOON CREEK

3 SW DONLY MILS/RACON CR, Perry, PA

Built 1979 Load: 51.7 t ADT: 75

SR 2001

Good

Over: SAWKILL CREEK

MILFORD TWP .75 M W TR 6, Pike, PA

Built 1992 Load: 51.7 t ADT: 9,635

ON TSR 470

Good

Over: LUDINGTON RUN

1 MI S WEST BINGHAM, Potter, PA

Built 1988 Load: 51.7 t ADT: 65

PA 281

Good

Over: CASSELMAN RIVER

CONFLUENCE BORO., Somerset, PA

Built 1989 Load: 51.7 t ADT: 1,450

SR 3005

Good

Over: OGDONIA CREEK

3.5S.OF HILLSGROVE-HLSGRV, Sullivan, PA

Built 1978 Load: 51.7 t ADT: 52

SR 1005

Good

Over: STARRUCCA CREEK

THOMPSN TWP 1.4M E TR 171, Susquehanna, PA

Built 1988 Load: 51.7 t ADT: 147

SR 287

Good

Over: OVER CROOKED CREEK

1 MI S OF TIOGA BORO, Tioga, PA

Built 1975 Load: 51.7 t ADT: 2,620

SR 328

Good

Over: HAMMOND CREEK

2 MI W OF MILLERTON, Tioga, PA

Built 1994 Load: 51.7 t ADT: 1,330

SR 3009

Good

Over: CHARLESTON CREEK

0.25 MI N OF ROUND TOP, Tioga, PA

Built 1993 Load: 51.7 t ADT: 337

S.R. 3016

Good

Over: ZIMMERMAN CREEK

3.5 MI SE OF MORRIS, Tioga, PA

Built 1905 Load: 51.7 t ADT: 172

SR 1008

Good

Over: TRIB W BR SUSQ

2.75 MI W OF NEW COLUMBIA, Union, PA

Built 1974 Load: 51.7 t ADT: 1,594

SR 3009

Good

Over: OVER RAPID RUN

VILLAGE OF COWAN, Union, PA

Built 1994 Load: 51.7 t ADT: 319

SR 0917

Good

Over: N. BR. OF PIGEON CREEK

BENTLEYVILLE BOROUGH, Washington, PA

Built 1985 Load: 51.7 t ADT: 6,250

SR 2020

Good

Over: LITTLE TENMILE CREEK

W. BETHLEHEM & MARIANNA B, Washington, PA

Built 1942 Load: 51.7 t ADT: 1,168

SR 1030

Good

Over: JACKS RUN

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1993 Load: 51.7 t ADT: 5,504

SR 3016

Good

Over: LITTLE SEWICKLEY CREEK

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1984 Load: 51.7 t ADT: 659

PA TPK (PA 66)

Good

Over: SR 0136

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1991 Load: 51.7 t ADT: 10,429

PA TPK (PA 66)

Good

Over: T-700

HEMPFIELD TWP, Westmoreland, PA

Built 1993 Load: 51.7 t ADT: 10,429

PA TPK (PA 66)

Good

Over: T-700

HEMPFIELD TWP, Westmoreland, PA

Built 1993 Load: 51.7 t ADT: 10,429

T945 Willow Run Rd

Good

Over: STONY RUN

BTW SR1027 & SR 1025, Westmoreland, PA

Built 2008 Load: 51.7 t ADT: 64

SR 0087 TR 87

Good

Over: MEHOOPANY CREEK

FORKSTON TP 1.1M W SR3001, Wyoming, PA

Built 1993 Load: 51.7 t ADT: 684

PA 216; SR 0216

Good

Over: SEAKS RUN

2 MILE SE OF LOGANVILLE, York, PA

Built 1992 Load: 51.7 t ADT: 791

Sheep Bridge Rd.

Good

Over: I-83; SR 0083 NB & SB

1 MI S OF EXIT-13 I-83, York, PA

Built 1959 Load: 51.7 t ADT: 313

Showing 19,101-19,150 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.