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

PA 145SB(LR 153)

Fair

Over: PA 309 NB(LR 781)

PA.145SB OVER PA.309NB., Lehigh, PA

Built 1958 Load: 49.0 t ADT: 4,668

HOLLENBACH ROAD

Fair

Over: JORDAN CREEK

NORTH OF LOWHILL, Lehigh, PA

Built 1944 Load: 49.0 t ADT: 200

SR 3038

Fair

Over: NESCOPECK CREEK

BLACK CRK TWP INT SR 3016, Luzerne, PA

Built 1958 Load: 49.0 t ADT: 244

KARCHNERS ROAD

Fair

Over: TRIB. TO NESCOPECK CREEK

200FT NE OF SR 3015, Luzerne, PA

Built 1978 Load: 49.0 t ADT: 74

SR 1017

Fair

Over: TROUT RUN

TROUT RUN, Lycoming, PA

Built 1961 Load: 49.0 t ADT: 625

SR 80 WB

Fair

Over: OVER HARTHEGIG RUN

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1965 Load: 49.0 t ADT: 11,377

SR 80 EB

Fair

Over: OVER SR 3007 MRCR-PLSKI

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 Load: 49.0 t ADT: 11,198

SR 3012 CLARK ST

Fair

Over: OVER SHENANGO RIVER

CITY OF SHARON, Mercer, PA

Built 1981 Load: 49.0 t ADT: 2,476

BRIDGE 2706 T-451

Fair

Over: OVER BLACK RUN

ELLIOTT RD. WOLF CREEK, Mercer, PA

Built 1976 Load: 49.0 t ADT: 381

SR 1001

Fair

Over: BRANCH HONEY CREEK

NAGINEY, Mifflin, PA

Built 1955 Load: 49.0 t ADT: 795

ALLENTOWN ROAD

Fair

Over: SKIPPACK CREEK / 3031F04

N.OF ELROY ROAD 16A03, Montgomery, PA

Built 1988 Load: 49.0 t ADT: 9,931

BLAIR MILL ROAD

Fair

Over: BRANCH PENNYPACK CREEK

UPPER MORELAND 3259B01, Montgomery, PA

Built 1973 Load: 49.0 t ADT: 14,560

OLD GULPH ROAD

Fair

Over: MILL CREEK

GULPH;ROBERTS RD. 35D10, Montgomery, PA

Built 1930 Load: 49.0 t ADT: 7,673

JENKINTOWN ROAD

Fair

Over: TOOKANY CREEK

0.22 MI NW OF SR 2025, Montgomery, PA

Built 1979 Load: 49.0 t ADT: 2,616

LEXINGTON DRIVE

Fair

Over: TRIB. LITTLE PINE RUN

2.6MI.NE.FT.WASH. 3258-C5, Montgomery, PA

Built 1990 Load: 49.0 t ADT: 140

HOFFMAN ROAD

Fair

Over: TRIB. TO SCHLEGEL RUN

2.75 MI NW SR 663 2915-H3, Montgomery, PA

Built 1948 Load: 49.0 t ADT: 100

I-80 WB

Fair

Over: MAUSES CR-AND SR 3007

2.1 MI. W DANVILLE EXIT, Montour, PA

Built 1963 Load: 49.0 t ADT: 13,173

SR 2028 (LR 48017)

Fair

Over: US 22 (LR 772)

BETHMAN RD.OVER U.S.22, Northampton, PA

Built 1954 Load: 49.0 t ADT: 2,967

SR 147

Fair

Over: MAHANOY CREEK.

1 MI N OF HERNDON, Northumberland, PA

Built 1983 Load: 49.0 t ADT: 3,429

SR 1001

Fair

Over: OVER DELWARE RUN

4 MI NORTH WATSONTOWN, Northumberland, PA

Built 1940 Load: 49.0 t ADT: 780

T-536 HOUSER RD

Fair

Over: LITTLE SHAMOKIN CREEK

0.4 MI NW OF AUGUSTAVILLE, Northumberland, PA

Built 1911 Load: 49.0 t ADT: 100

US 11&15; SR 0011

Fair

Over: T-510; BUTCHERSHOP RD

1MI WEST OF DUNCANNON, Perry, PA

Built 1959 Load: 49.0 t ADT: 8,474

FRITZ RD

Fair

Over: BIG BUFFALO CREEK

3.5 NE KISTLER BIG BUF.CK, Perry, PA

Built 1986 Load: 49.0 t ADT: 75

PA 56

Fair

Over: WEAVER RUN

WINDBER BOROUGH, Somerset, PA

Built 1959 Load: 49.0 t ADT: 4,460

PA 653

Fair

Over: CSX RAILROAD

.2 MI.E.OF ROCKWOOD, Somerset, PA

Built 1999 Load: 49.0 t ADT: 649

SR 1016

Fair

Over: DARK SHADE CREEK

CAIRNBROOK, Somerset, PA

Built 1992 Load: 49.0 t ADT: 2,162

T640 REFFNER ROAD

Fair

Over: WELLS CREEK

1.2 MI.E.OF FRIEDENS, Somerset, PA

Built 1936 Load: 49.0 t ADT: 50

CAMP #3 ROAD

Fair

Over: SPRUCE RUN

1/4 MI NORTH OF SR 3029, Somerset, PA

Built 1985 Load: 49.0 t ADT: 15

SR 4017

Fair

Over: BUCKLEY HOLLOW RUN

3 MI NORTH OF OSCEOLA, Tioga, PA

Built 1929 Load: 49.0 t ADT: 274

WATER STREET

Fair

Over: KELSEY CREEK

WATER ST. WELLSBORO BORO, Tioga, PA

Built 1900 Load: 49.0 t ADT: 700

SR 80 WB

Fair

Over: OVER T-388 COAL VALLEY

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1966 Load: 49.0 t ADT: 9,842

SR 0070

Fair

Over: SR 4051 & Alghy Val R/R

CANTON TOWNSHIP, Washington, PA

Built 1960 Load: 49.0 t ADT: 20,564

SR 0079

Fair

Over: SR 2020 & TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1998 Load: 49.0 t ADT: 9,943

SR 0079

Fair

Over: SR 0519

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1994 Load: 49.0 t ADT: 26,243

SR 1016

Fair

Over: LITTLE MINGO CREEK

NOTTINGHAM TOWNSHIP, Washington, PA

Built 1955 Load: 49.0 t ADT: 792

SR 2023

Fair

Over: PIGEON CREEK

FALLOWFIELD TOWNSHIP, Washington, PA

Built 1984 Load: 49.0 t ADT: 651

PA TPK (TOLL 43)

Fair

Over: SR 0070

INTERCHANGE 43 & 70, Washington, PA

Built 1990 Load: 49.0 t ADT: 4,051

JEFFERSON AVENUE

Fair

Over: CHARTIERS CREEK

300 SOUTH OF SR 1009, Washington, PA

Built 1926 Load: 49.0 t ADT: 700

SR 3004

Fair

Over: WEST BR WALLENPAUPACK CR

SALEM TWP @ JCT SR 3009, Wayne, PA

Built 1958 Load: 49.0 t ADT: 399

SR 0051

Fair

Over: CEDAR CREEK

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1960 Load: 49.0 t ADT: 21,291

SR 0993

Fair

Over: BRUSH CREEK

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1961 Load: 49.0 t ADT: 3,793

SR 4025

Fair

Over: BRUSH CREEK

IRWIN BOROUGH, Westmoreland, PA

Built 1993 Load: 49.0 t ADT: 3,583

PA TPK (PA 66)

Fair

Over: SR 0130

HEMPFIELD TWP, Westmoreland, PA

Built 1993 Load: 49.0 t ADT: 10,429

PA TPK (RAMP AB)

Fair

Over: PA TPK (I-76)

NEW STANTON INTERCHANGE, Westmoreland, PA

Built 1997 Load: 49.0 t ADT: 21,390

PA TPK (I-76)

Fair

Over: PA TPK (RAMPS D & B)

DONEGAL INTERCHANGE, Westmoreland, PA

Built 2002 Load: 49.0 t ADT: 34,700

PETERS ROAD

Fair

Over: LOYALHANNA CREEK

VILLAGE OF SHIRLEY, Westmoreland, PA

Built 1994 Load: 49.0 t ADT: 115

I-83; SR 0083

Fair

Over: MILL CREEK

0.8 MI S OF EXIT-19 I-83, York, PA

Built 1959 Load: 49.0 t ADT: 51,452

I-83; SR 0083

Fair

Over: Norfolk Southern RR

0.6 MI.S. US Rt 30 INTER, York, PA

Built 1959 Load: 49.0 t ADT: 51,452

PA 214; SR 0214

Fair

Over: EAST BRANCH CODORUS CREE

2 MI.S. OF DALLASTOWN, York, PA

Built 1937 Load: 49.0 t ADT: 2,151

PA 234; SR 0234

Fair

Over: HONEY RUN

2 MI. N.E. THOMASVILLE, York, PA

Built 1947 Load: 49.0 t ADT: 7,434

Showing 10,451-10,500 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.