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

T576 HENFLINT RD

Good

Over: LITTLE SHANNON RUN

AT T-808 INTERSECT, Greene, PA

Built 1937 Load: 44.5 t ADT: 25

PA 45

Good

Over: LITTLE JUNIATA RIVER

167 FEET WEST OF SR 4017, Huntingdon, PA

Built 1982 Load: 44.5 t ADT: 1,439

SR 1023

Good

Over: STANDING STONE CREEK

1 MI.N.OF MCALEVYS FORT, Huntingdon, PA

Built 1938 Load: 44.5 t ADT: 323

T341 Spring Crk R

Good

Over: THREE SPRINGS CREEK

1 MI.E.OF THREE SPRINGS, Huntingdon, PA

Built 1999 Load: 44.5 t ADT: 25

SR3039

Good

Over: SWAMP RUN

SWAMP RUN NO.2, Jefferson, PA

Built 1996 Load: 44.5 t ADT: 347

T-475 MEISER RD

Good

Over: COCOLAMUS CREEK

50 FT. E OF SR 235 INTER, Juniata, PA

Built 1950 Load: 44.5 t ADT: 50

SR 1013

Good

Over: DUNDAFF CREEK

GRNFIELD TP 1.2M N SR1002, Lackawanna, PA

Built 1996 Load: 44.5 t ADT: 367

WASHBURN STREET

Good

Over: KEYSER CREEK / RBMN RR

200 NW OF S SHERMAN AVE, Lackawanna, PA

Built 1996 Load: 44.5 t ADT: 6,250

23 New Holland Pk.

Good

Over: Conestoga River

0.75 MI. N.E. OF Eden, Lancaster, PA

Built 1989 Load: 44.5 t ADT: 16,715

SR 4002; TWP RD

Good

Over: DONEGAL CREEK

DONEGAL SPRINGS, Lancaster, PA

Built 1995 Load: 44.5 t ADT: 1,341

PA TPK (I-376)

Good

Over: HICKORY RUN

NORTH BEAVER TWP., Lawrence, PA

Built 1992 Load: 44.5 t ADT: 9,871

RUSSELL RD

Good

Over: LITTLE BEAVER CREEK

037009 LITTLE BEAVER TWP, Lawrence, PA

Built 2003 Load: 44.5 t ADT: 50

WALNUT STREET

Good

Over: HAZEL DYKE

NEAR S 12TH ST INTERSECT, Lebanon, PA

Built 1981 Load: 44.5 t ADT: 3,000

SR 0029 TR 29

Good

Over: PIKES CREEK

LAKE TWP .3 M S TR 118, Luzerne, PA

Built 1932 Load: 44.5 t ADT: 2,606

S.R. 2032

Good

Over: MILL CREEK

4 MI N OF PENNSDALE, Lycoming, PA

Built 1985 Load: 44.5 t ADT: 132

US 15 NB

Good

Over: MAHAFFEY LANE T-388

OVER MAHAFFEY LANE, Lycoming, PA

Built 1990 Load: 44.5 t ADT: 8,045

US 15 SBL

Good

Over: OVER T-388 MAHAFFEY LANE

.6 MI. N. OF WILLIAMSPORT, Lycoming, PA

Built 1990 Load: 44.5 t ADT: 8,834

T-395

Good

Over: BEAUTYS RUN

0.5 Mi SW OF OAK LYNN, Lycoming, PA

Built 1989 Load: 44.5 t ADT: 100

LITTLE BEAR ROAD

Good

Over: LITTLE BEAR CREEK

1.5 MI EAST OF SR 87, Lycoming, PA

Built 1996 Load: 44.5 t ADT: 15

SR 321-PA 321

Good

Over: SOUTH BRANCH SUGAR RUN

4 MI W MARSHBURG, McKean, PA

Built 1994 Load: 44.5 t ADT: 72

MASONS MILL ROAD

Good

Over: PENNYPACK CREEK

MASONS MILL ROAD 3259-H5, Montgomery, PA

Built 1989 Load: 44.5 t ADT: 4,416

SR 642

Good

Over: OVER MAHONING CR.

3 MI N OF DANVILLE BORO, Montour, PA

Built 1995 Load: 44.5 t ADT: 2,057

SR 1004

Good

Over: CHILLISQUAQUE CREEK

4 MI N WASHINGTONVILLE, Montour, PA

Built 1960 Load: 44.5 t ADT: 225

SR 890

Good

Over: OVER LITTLE SHAMOKIN CR.

2 MI S OF HAMILTON, Northumberland, PA

Built 1949 Load: 44.5 t ADT: 2,907

SR 901

Good

Over: OVER LOCUST CR.

1.5 MI NW OF LOCUST GAP, Northumberland, PA

Built 1989 Load: 44.5 t ADT: 3,921

SR 2002

Good

Over: LITTLE ROARING CREEK

4 MI E OF RIVERSIDE BORO, Northumberland, PA

Built 1954 Load: 44.5 t ADT: 451

POINT TWP RD T-702

Good

Over: LITHIA SPRINGS CREEK

2.5 MI NE OF NORTHD BORO, Northumberland, PA

Built 1991 Load: 44.5 t ADT: 150

SR 4007

Good

Over: BUCKWHEAT RUN

1 MI.S.OF DONNALLYS MILL, Perry, PA

Built 1940 Load: 44.5 t ADT: 569

SR 1017

Good

Over: CENTRAL NEW YORK RR

WSTFLL TWP 3.5M W SR 1025, Pike, PA

Built 1997 Load: 44.5 t ADT: 1,179

SR 1011

Good

Over: GENESEE RIVER

1 MI NW ULYSSES, Potter, PA

Built 1991 Load: 44.5 t ADT: 653

HUNGRY HOLLOW ROAD

Good

Over: CROSS FORK CREEK

1000 SE CROSS FORK CK RD, Potter, PA

Built 2004 Load: 44.5 t ADT: 50

SR 0858 TR 858

Good

Over: N BR WYALUSING CREEK

RUSH TWP 1.7 M S SR 4017, Susquehanna, PA

Built 1988 Load: 44.5 t ADT: 277

SR 3022

Good

Over: MARSH CREEK

3 MI E OF ANSONIA, Tioga, PA

Built 1962 Load: 44.5 t ADT: 232

PUMP STATION RD

Good

Over: LITTLE SUGAR CREEK

PLUM TOWNSHIP, Venango, PA

Built 1992 Load: 44.5 t ADT: 100

PA TPK (TOLL43)

Good

Over: SR 2079;E MALDEN DR

NEAR WEST BROWNSVILLE, Washington, PA

Built 1990 Load: 44.5 t ADT: 4,051

SR 4009

Good

Over: BRUSH CREEK

CITY OF JEANNETTE, Westmoreland, PA

Built 1996 Load: 44.5 t ADT: 2,668

PA TPK (I-76)

Good

Over: SR 0070 RR & SEWICKLEY

NEAR NEW STANTON, Westmoreland, PA

Built 1999 Load: 44.5 t ADT: 32,982

VALLEY GREEN ROAD

Good

Over: FISHING CREEK

.8 E.YOCUMTOWN/FISHING CR, York, PA

Built 2000 Load: 44.5 t ADT: 1,268

TR107 RUSHBROOK ST

Good

Over: SR 0006 EB & WB

MAYFIELD BORO OVER TR 6, Lackawanna, PA

Built 1995 Load: 44.5 t ADT: 4,456

SR1001

Good

Over: CLARION RIVER

GRAVEL LICK, Clarion, PA

Built 1997 Load: 44.5 t ADT: 130

MOYER ROAD

Good

Over: MOUNTS CREEK

AT THE RTE 119 INTERSECT, Fayette, PA

Built 1996 Load: 44.5 t ADT: 1,000

SR 0079

Good

Over: SR 1009 Pitt & Ohio R/R

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1997 Load: 44.5 t ADT: 26,227

T-344 MILL ROAD

Good

Over: N.BR.MAHANTANGO CREEK

VILLAGE OF MEISERVILLE, Snyder, PA

Built 1998 Load: 44.5 t ADT: 100

RAMP C

Good

Over: I95 RMPS Y X EE F & RR

(BRI) RAMP C 3591 G01, Philadelphia, PA

Built 1999 Load: 44.5 t ADT: 5,112

T-566 PINE FURNACE

Good

Over: SOUTH FORK PINE CREEK

50 feet west of T-751, Armstrong, PA

Built 1999 Load: 44.5 t ADT: 29

SR 0084 I-84

Good

Over: SR 8024 RAMP & RR

DUNMORE BORO OVER SR 8024, Lackawanna, PA

Built 1998 Load: 44.5 t ADT: 23,400

SR 150-PA 150

Good

Over: WATER ST W B SUSQUEHANNA

CONSTITUTION BRIDGE, Clinton, PA

Built 1999 Load: 44.5 t ADT: 5,062

SR 3004

Good

Over: BEAVER RUN

2 MI. W. OF MOORESBURG, Montour, PA

Built 1999 Load: 44.5 t ADT: 102

SR 2034

Good

Over: CARPENTERS RUN

VILLAGE OF PENNSDALE, Lycoming, PA

Built 2000 Load: 44.5 t ADT: 431

SR 79 NB

Good

Over: OVER WEST 32ND STREET

CITY OF ERIE, Erie, PA

Built 2000 Load: 44.5 t ADT: 14,288

Showing 17,701-17,750 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.