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

SR0422 WB

Good

Over: SR4422&SR8018

WATTS HILL, Indiana, PA

Built 1995 Load: 47.2 t ADT: 4,679

SR 1088; T-874

Good

Over: US 222; SR 0222

0.25 mi.S. Berks Co. Line, Lancaster, PA

Built 1975 Load: 47.2 t ADT: 1,927

SR 1039

Good

Over: HAMMER CREEK

0.5 MILE N. OF MILLWAY, Lancaster, PA

Built 1954 Load: 47.2 t ADT: 3,558

SR 4011

Good

Over: TRIB LITTLE CONESTOGA CR

.75 MI.S. PA 722, Lancaster, PA

Built 1997 Load: 47.2 t ADT: 14,706

MARKET ST

Good

Over: AMTRAK

300 FT SOUTH OF SR 230, Lancaster, PA

Built 1993 Load: 47.2 t ADT: 660

SR 0079 SB

Good

Over: JAMISON RUN

1/3MI.N.OF SR 1016, Lawrence, PA

Built 1963 Load: 47.2 t ADT: 9,235

M.L.KING JR. DRIVE

Good

Over: CEDAR CREEK

WEST OF ST. ELMO ST., Lehigh, PA

Built 1994 Load: 47.2 t ADT: 2,100

SR 0220

Good

Over: OVER BIG RUN

VILLAGE OF TIVOLI, Lycoming, PA

Built 1950 Load: 47.2 t ADT: 2,933

SR 2077

Good

Over: LITTLE MUNCY CREEK

1MI N OF LAIRDSVILLE, Lycoming, PA

Built 1949 Load: 47.2 t ADT: 187

SR 3028

Good

Over: OVER NICHOLS RUN

BOROUGH OF JERSEY SHORE, Lycoming, PA

Built 1984 Load: 47.2 t ADT: 2,855

US 15

Good

Over: OVER SR 3029

1 MI.N.OF COGAN STATION, Lycoming, PA

Built 1993 Load: 47.2 t ADT: 8,196

SR 15

Good

Over: OVER SR 3029

1 MI.N.OF COGAN STATION, Lycoming, PA

Built 1993 Load: 47.2 t ADT: 9,450

T-840 CTY BDG 103

Good

Over: LYCOMING CREEK

2.8 MI N OF TROUT RUN, Lycoming, PA

Built 1996 Load: 47.2 t ADT: 80

BRIDGE 816 LANCAST

Good

Over: OVER SAUL RUN

LANCASTER AVE. GREENVILLE, Mercer, PA

Built 1982 Load: 47.2 t ADT: 184

T-416

Good

Over: KISHACOQUILLAS CREEK

MAIN STREET CONNECTOR, Mifflin, PA

Built 1994 Load: 47.2 t ADT: 1,369

RAMP N WAS MCB-104

Good

Over: SR 3007

MID-COUNTY INTERCHANGE, Montgomery, PA

Built 1992 Load: 47.2 t ADT: 32,775

I-80 EB

Good

Over: OVER BRANCH BEAVER RUN

5.9 MI. W DANVILLE EXIT, Montour, PA

Built 1962 Load: 47.2 t ADT: 12,929

US 22

Good

Over: N. 3RD ST (SR 2023)

CITY OF EASTON, Northampton, PA

Built 1950 Load: 47.2 t ADT: 30,300

SR 125

Good

Over: MAHANOY CREEK

1.5 MI SW OF GOWAN CITY, Northumberland, PA

Built 1986 Load: 47.2 t ADT: 459

S.R. 3012

Good

Over: OVER FIDDLERS RUN

0.5 MI N OF MANDATA, Northumberland, PA

Built 1995 Load: 47.2 t ADT: 5,579

SR 3001

Good

Over: E FORK SINNEMAHONING CR

2 MI NE CONRAD, Potter, PA

Built 1990 Load: 47.2 t ADT: 135

SR 1007

Good

Over: STONY CREEK

1.7 MI.S.OF SHANKSVILLE, Somerset, PA

Built 1949 Load: 47.2 t ADT: 243

SR 3009

Good

Over: CHARLESTON CREEK

2 MI N OF ROUND TOP, Tioga, PA

Built 1932 Load: 47.2 t ADT: 337

T-773 CTY BDG #10

Good

Over: TIOGA RIVER

0.4 MI. W. TIOGA JUNCTION, Tioga, PA

Built 1993 Load: 47.2 t ADT: 250

SR 3010

Good

Over: OVER LT SCRUBGRASS CREEK

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1962 Load: 47.2 t ADT: 65

SR 1009 SWEDE HILL

Good

Over: OVER WILTSIE RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1990 Load: 47.2 t ADT: 97

PA TPK (TOLL43)

Good

Over: SR 2079; MALDEN DR

NEAR WEST BROWNSVILLE, Washington, PA

Built 1990 Load: 47.2 t ADT: 3,193

WEST MAIDEN STREET

Good

Over: CHARTIERS CREEK Trib.

500 WEST OF SR 40, Washington, PA

Built 2004 Load: 47.2 t ADT: 2,500

SR 1011

Good

Over: TUBMILL CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1995 Load: 47.2 t ADT: 240

PA 262; Fishing ck

Good

Over: I-83; SR 0083

EXIT-16 PA 262 & I-83, York, PA

Built 1959 Load: 47.2 t ADT: 6,695

Lewisberry Road

Good

Over: Tributary Bennett Run

2 MI E. Of Lewisberry, York, PA

Built 1972 Load: 47.2 t ADT: 4,636

SR 4021

Good

Over: BENNETTS RUN

1 MILE WEST OF I83, York, PA

Built 1993 Load: 47.2 t ADT: 270

LOST HOLLOW ROAD

Good

Over: N. BR. BERMUDIAN CREEK

.7W SGL 243/N.BR.BERMD.CR, York, PA

Built 1958 Load: 47.2 t ADT: 52

T-975; RED MILL RD

Good

Over: FISHING CREEK

1.5 W.GOLDSBORO/FISHING C, York, PA

Built 1996 Load: 47.2 t ADT: 1,000

Willow Grove Ave.

Good

Over: SEPTA

N of St. Martins Ln 16K04, Philadelphia, PA

Built 1883 Load: 47.2 t ADT: 6,880

OXFORD STREET

Good

Over: AMTRAK (NE CORRIDOR)

EAST OF 32ND STR. 28C07, Philadelphia, PA

Built 1892 Load: 47.2 t ADT: 5,300

SR 0006 TR 6 WB

Good

Over: E LACKAWANNA AVE EXIT 2

OLYPHANT BORO OV LACK AVE, Lackawanna, PA

Built 1996 Load: 47.2 t ADT: 13,833

SR 0006 TR 6 EB

Good

Over: SR 0247 TR 247 EXIT 3

JESSUP BORO OVER TR 247, Lackawanna, PA

Built 1996 Load: 47.2 t ADT: 9,347

SR 4001

Good

Over: CO LI BR CHILLISQUAQUE C

VILLAGE OF COMLY, Montour, PA

Built 1997 Load: 47.2 t ADT: 536

SR 4004

Good

Over: RACCOON CREEK

HANOVER & SMITH TOWNSHIP, Washington, PA

Built 1997 Load: 47.2 t ADT: 4,084

SR 3012

Good

Over: SLAB CABIN RUN

HOUSERVILLE, Centre, PA

Built 1998 Load: 47.2 t ADT: 1,772

SR 3012

Good

Over: SPRING CREEK

1 MI N STATE COLLEGE, Centre, PA

Built 1998 Load: 47.2 t ADT: 1,772

US 219 NBL

Good

Over: SR 2047

1.0 MI.S OF MEYERSDALE, Somerset, PA

Built 1998 Load: 47.2 t ADT: 1,861

US 219 SBL

Good

Over: SR 2047

1.0 MI.S OF MEYERSDALE, Somerset, PA

Built 1998 Load: 47.2 t ADT: 1,896

SR 1041

Good

Over: JACOBS CREEK

LOWER TYRONE TWP, Fayette, PA

Built 1998 Load: 47.2 t ADT: 446

SR 2019

Good

Over: TULPEHOCKEN CREEK

1 MI.S. OF MILLARDSVILLE, Lebanon, PA

Built 1998 Load: 47.2 t ADT: 4,002

SR 2102 DUNHAM DR

Good

Over: SR 8024 RAMP

DUNMORE OVER SR 8024 RAMP, Lackawanna, PA

Built 1998 Load: 47.2 t ADT: 2,788

SR 8024 - RAMP

Good

Over: DUNHAM DRIVE

DUNMORE BO OVER DUNHAM DR, Lackawanna, PA

Built 1999 Load: 47.2 t ADT: 2,807

Karthaus Mtn Road

Good

Over: BENNETT BR.SINNEMAHONING

0.5 MILES E OF SR 555 INT, Cameron, PA

Built 1999 Load: 47.2 t ADT: 250

SR 322-US 322 E.B.

Good

Over: LAUREL CREEK AND T 795

2 MI NW MILROY, Mifflin, PA

Built 1999 Load: 47.2 t ADT: 8,394

Showing 18,351-18,400 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.