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

E. LOCKHART ST.

Good

Over: SUSQUEHANNA RIVER

E.LOCKHART ST. BR. SAYRE, Bradford, PA

Built 1987 Load: 42.6 t ADT: 2,000

SOUDERTON PIKE

Good

Over: MORRIS RUN

BLOOMING GLEN 15E13, Bucks, PA

Built 1902 Load: 42.6 t ADT: 7,314

PINE CRK HOLLOW RD

Good

Over: PINE CREEK

3 MILES NE OF SR 45, Centre, PA

Built 1999 Load: 42.6 t ADT: 15

STREET ROAD

Good

Over: WEST CHESTER RR (SEPTA)

WESTTOWN STATION 41J3, Chester, PA

Built 1987 Load: 42.6 t ADT: 9,765

ELLIS LANE

Good

Over: TRIBUTARY OF CHESTER CRE

E GOSHEN TWP ADC 3583-K4, Chester, PA

Built 1974 Load: 42.6 t ADT: 3,764

SR 219-US 219

Good

Over: CUSH CREEK

CUSH CREEK, Clearfield, PA

Built 1986 Load: 42.6 t ADT: 1,211

SR 0042

Good

Over: OVER ROARING CREEK

3 MI S.OF CATAWISSA, Columbia, PA

Built 1959 Load: 42.6 t ADT: 4,036

SR 4011

Good

Over: MUD RUN

1.25 MI. E OF MILLVILLE, Columbia, PA

Built 1994 Load: 42.6 t ADT: 547

T-427

Good

Over: PA TPK (I-76)

WEST PENNSBORO TWP, Cumberland, PA

Built 2005 Load: 42.6 t ADT: 200

LR 21014 SR 2017

Good

Over: PA TPK (I-76)

0.1 MI N OF LR 21069, Cumberland, PA

Built 1950 Load: 42.6 t ADT: 9,145

CREEKSIDE DRIVE

Good

Over: POSSUM HOLLOW CREEK

.2W WEST FAIRVW/TR.CONODG, Cumberland, PA

Built 1995 Load: 42.6 t ADT: 2,219

US 422; SR 0422

Good

Over: SPRING CREEK

HERSHEY, Dauphin, PA

Built 1928 Load: 42.6 t ADT: 15,639

MID-COUNTY EXWY-NB

Good

Over: AVONDALE RD CREEK FILL

AT MAYER LANDFILL 34H11, Delaware, PA

Built 1989 Load: 42.6 t ADT: 34,047

BRYN MAWR AVENUE

Good

Over: BRANCH DARBY CREEK

1MI.EAST OF PA-3 25E04, Delaware, PA

Built 1966 Load: 42.6 t ADT: 6,908

T-631 OLD KANE RD

Good

Over: WEST BR CLARION RIVER

130 FT WEST OF SR 219, Elk, PA

Built 2003 Load: 42.6 t ADT: 623

EAST HICKS RUN RD

Good

Over: EAST BRANCH HICKS RUN

1/2 MI N BARR HOLLOW ROAD, Elk, PA

Built 1997 Load: 42.6 t ADT: 20

T-556 TAMARACK RD

Good

Over: TROUT RUN

500 FT NORTH OF BAGDAD RD, Erie, PA

Built 1993 Load: 42.6 t ADT: 198

PENNSYLVANIA AVE.

Good

Over: REDSTONE CREEK

700 WEST OF FAYETTE ST., Fayette, PA

Built 1994 Load: 42.6 t ADT: 1,700

PA 350

Good

Over: E.BR.WARRIORS MARK RUN

2.3 MILE NORTH OF SR 4013, Huntingdon, PA

Built 1988 Load: 42.6 t ADT: 909

LAUREL RUN ROAD

Good

Over: LAUREL RUN

900 FT SE WHIPPLE DAM RD, Huntingdon, PA

Built 1998 Load: 42.6 t ADT: 45

E LICKING CREEK DR

Good

Over: EAST LICKING CREEK

1000 SE VINCENT TRAM RD, Juniata, PA

Built 1996 Load: 42.6 t ADT: 100

SR 0407 TR 407

Good

Over: LACKAWANNA LAKE

BENTON TWP .1 M N TR 524, Lackawanna, PA

Built 1971 Load: 42.6 t ADT: 1,449

SR 0376 EB

Good

Over: MERCER ROAD

1/2 MI. N OF SR 0208, Lawrence, PA

Built 1973 Load: 42.6 t ADT: 6,263

SR 58 S.DIAMOND ST

Good

Over: OVER MUNNELL RUN

COOLSPRING TOWNSHIP, Mercer, PA

Built 1959 Load: 42.6 t ADT: 3,660

BRIDGE 2630 T-403

Good

Over: OVER PINE RUN

MCCLELLAND RD. FINDLEY, Mercer, PA

Built 1988 Load: 42.6 t ADT: 182

BRIDGE 607 T-846

Good

Over: OVER NORTH DEER CREEK

BRANCH RD. FRENCH CREEK, Mercer, PA

Built 1990 Load: 42.6 t ADT: 31

BRIDGE 723 T-677

Good

Over: OVER BIG RUN BRANCH

COSSITT ROAD W SALEM TWP, Mercer, PA

Built 1977 Load: 42.6 t ADT: 46

LIMEKILN PIKE

Good

Over: LITTLE NESHAMINY CREEK

EUREKA 3145K02, Montgomery, PA

Built 1838 Load: 42.6 t ADT: 8,253

S.R. 3004

Good

Over: BRANCH OF BEAVER RUN

1.5 EAST OF POTTSGROVE, Montour, PA

Built 1994 Load: 42.6 t ADT: 102

LILLY HILL ROAD

Good

Over: HOKENDAUQUA CREEK

NORTH OF PA 946, Northampton, PA

Built 1991 Load: 42.6 t ADT: 50

KNITTERS HILL ROAD

Good

Over: LITTLE BUSHKILL CREEK

NORTH OF RASLEYTOWN, Northampton, PA

Built 1966 Load: 42.6 t ADT: 400

STONE CHURCH ROAD

Good

Over: ALLEGHENY CREEK

NE OF CENTERVILLE, Northampton, PA

Built 1992 Load: 42.6 t ADT: 150

SR 125 (TR-125 NBL

Good

Over: OVER SHAMOKIN CREEK

CITY OF SHAMOKIN, Northumberland, PA

Built 1905 Load: 42.6 t ADT: 3,569

SR 147 NBL

Good

Over: OVER MUDDY RUN

1.75 MI NORTH OF MILTON, Northumberland, PA

Built 1969 Load: 42.6 t ADT: 8,515

S.R.147

Good

Over: MUDDY RUN

1.75 MI NORTH OF MILTON, Northumberland, PA

Built 1969 Load: 42.6 t ADT: 9,520

S.R. 642

Good

Over: OVER S.R. 147

1 MI E OF MILTON, Northumberland, PA

Built 1970 Load: 42.6 t ADT: 6,829

I-80 RAMP J

Good

Over: RAMP J OVER LIMESTONE R

1.5 MI E OF MILTON, Northumberland, PA

Built 1962 Load: 42.6 t ADT: 1,135

ELK HILL ROAD

Good

Over: LAUREL RUN

1200 SE OF LAUREL RUN RD, Perry, PA

Built 1998 Load: 42.6 t ADT: 50

US 209 (LR 1103)

Good

Over: TRIB.TO SCHUYLKILL RIVER

MIDDLEPORT BOROUGH, Schuylkill, PA

Built 1976 Load: 42.6 t ADT: 3,876

PA 160(GRAHAM AVE)

Good

Over: PAINT CREEK

WINDBER BORO, Somerset, PA

Built 1963 Load: 42.6 t ADT: 5,704

SR 2004

Good

Over: CASSELMAN RIVER

MEYERSDALE, Somerset, PA

Built 1951 Load: 42.6 t ADT: 1,232

SR 0092 TR 92

Good

Over: CENTRAL NEW YORK RR

SUSQUEHANNA BO JCT TR 171, Susquehanna, PA

Built 1995 Load: 42.6 t ADT: 2,806

SR 0167 TR 167

Good

Over: SILVER LAKE CREEK

SILVER LAKE TP JCT SR4008, Susquehanna, PA

Built 1990 Load: 42.6 t ADT: 565

SR 3004

Good

Over: MESHOPPEN CREEK

SPRNGVLLE TP .6M W SR2003, Susquehanna, PA

Built 1988 Load: 42.6 t ADT: 821

SR 49

Good

Over: OVER COWANESQUE RIVER

1 MI W OF NELSON, Tioga, PA

Built 1980 Load: 42.6 t ADT: 4,020

SR 1007

Good

Over: OVER ELK RUN

3 MI NE OF MAINESBURG, Tioga, PA

Built 1988 Load: 42.6 t ADT: 178

SR 4035

Good

Over: TRIB CATLIN HOLLOW CRK

0.5 MI NW OF CHARLESTON, Tioga, PA

Built 1995 Load: 42.6 t ADT: 1,686

US 15

Good

Over: WHITE DEER HOLE CREEK

VILLAGE OF ALLENWOOD, Union, PA

Built 1957 Load: 42.6 t ADT: 14,149

SR 3004

Good

Over: WHITEHORN RUN

VILLAGE OF GLEN IRON, Union, PA

Built 1983 Load: 42.6 t ADT: 443

SR 322 VAN BRIDGE

Good

Over: EAST SANDY CREEK

ROCKLAND TOWNSHIP, Venango, PA

Built 1981 Load: 42.6 t ADT: 5,057

Showing 17,151-17,200 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.