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

SR 2005 LR 22015

Fair

Over: PA TPK (I-76)

LONDONDERRY TOWNSHIP, Dauphin, PA

Built 1950 Load: 37.2 t ADT: 648

PLEASANTVIEW ROAD

Fair

Over: BEAVER CREEK

.3W HUMLTN/S.HAN/SWTR/BVR, Dauphin, PA

Built 1984 Load: 37.2 t ADT: 650

INTERSTATE 95

Fair

Over: CHESTER CREEK

BORO OF UPLAND 43F04, Delaware, PA

Built 1965 Load: 37.2 t ADT: 109,139

INTERSTATE 95(NB)

Fair

Over: RAMP M2 TO I95 (NB)

JUNCTION W/I-476 43K01, Delaware, PA

Built 1975 Load: 37.2 t ADT: 43,587

PROVIDENCE ROAD

Fair

Over: MEDIA BY-PASS

1MI.NORTH MEDIA 34C02, Delaware, PA

Built 1960 Load: 37.2 t ADT: 30,683

LINCOLN AVENUE

Fair

Over: DARBY CREEK

.4MI.NORTH I-95 35E13, Delaware, PA

Built 1967 Load: 37.2 t ADT: 20,649

PLUSH MILL ROAD

Fair

Over: MID-COUNTY;RAMPS A & B

.2MI.S.BALT.PIKE 34G07, Delaware, PA

Built 1989 Load: 37.2 t ADT: 249

LAWRENCE ROAD

Fair

Over: MID-COUNTY EXPRESSWAY

.2MI.SOUTH RTE.3 25K08, Delaware, PA

Built 1989 Load: 37.2 t ADT: 15,256

GRADYVILLE ROAD

Fair

Over: RIDLEY CREEK

RIDLEY CK.STATE PK.24E11, Delaware, PA

Built 1960 Load: 37.2 t ADT: 2,429

BUCK LANE

Fair

Over: SEPTA TROLLEY

HAVERFORD TWP. 3477K9, Delaware, PA

Built 1973 Load: 37.2 t ADT: 2,000

T-368 HORNER ROAD

Fair

Over: W BRANCH CLARION RIVER

600FT WEST OF US219 INTER, Elk, PA

Built 1930 Load: 37.2 t ADT: 50

SR 89 BEAVER DAM R

Fair

Over: OVER FRENCH CREEK W BR

GREENFIELD TOWNSHIP, Erie, PA

Built 1983 Load: 37.2 t ADT: 1,779

SR 98

Fair

Over: OVER ELK CREEK

FAIRVIEW TOWNSHIP, Erie, PA

Built 1964 Load: 37.2 t ADT: 2,877

SR1001 ARBUCKLE RD

Fair

Over: OVER FRENCH CREEK N BR

AMITY TOWNSHIP, Erie, PA

Built 1972 Load: 37.2 t ADT: 1,390

SR 2018 W PLEASANT

Fair

Over: OVER BEAVER RUN

ELGIN BOROUGH, Erie, PA

Built 1940 Load: 37.2 t ADT: 312

SR 2022 TURNPIKE R

Fair

Over: OVER SLAUGHTER RUN

WAYNE TOWNSHIP, Erie, PA

Built 1985 Load: 37.2 t ADT: 332

T-707 ZIMMERLY RD

Fair

Over: WALNUT CREEK

AT LOWE ROAD INTERSECTION, Erie, PA

Built 2006 Load: 37.2 t ADT: 1,913

VARIOUS STREETS

Fair

Over: OVER MILL CREEK

UNDER CITY OF ERIE, Erie, PA

Built 1920 Load: 37.2 t ADT: 8,327

SR 0119

Fair

Over: SR 0040

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1972 Load: 37.2 t ADT: 7,716

SR 1051

Fair

Over: BRANCH OF REDSTONE CREEK

NORTH UNION TOWNSHIP, Fayette, PA

Built 1950 Load: 37.2 t ADT: 1,862

SR 3010

Fair

Over: CROZIERS RUN

NICHOLSON TOWNSHIP, Fayette, PA

Built 1960 Load: 37.2 t ADT: 1,216

SR 2040; US 40 BUS

Fair

Over: COAL LICK RUN

CITY OF UNIONTOWN, Fayette, PA

Built 1942 Load: 37.2 t ADT: 14,141

SR3004 GUITONVILLE

Fair

Over: OVER COON CREEK

GREEN TOWNSHIP, Forest, PA

Built 1957 Load: 37.2 t ADT: 162

PA 16; Main St.

Fair

Over: STEIGERS RUN

MERCERSBURG, Franklin, PA

Built 1941 Load: 37.2 t ADT: 8,813

PA 75; SR 0075

Fair

Over: BURNS CREEK

1 ML. N. OF DOYLESBURG, Franklin, PA

Built 1991 Load: 37.2 t ADT: 775

SR 3005

Fair

Over: E BR CONOCOCHEAQUE CREEK

1.75 MI NW OF WORLEYTOW, Franklin, PA

Built 1941 Load: 37.2 t ADT: 899

BRIAR LANE

Fair

Over: FALLING SPRING CREEK

250 FT NORTH OF SR 2029, Franklin, PA

Built 1979 Load: 37.2 t ADT: 200

I-70 EBL

Fair

Over: T340 FAIRVIEW ROAD

1.5 MI.W.OF AMARANTH EXIT, Fulton, PA

Built 1962 Load: 37.2 t ADT: 5,410

SR 2004

Fair

Over: LITTLE TONOLOWAY CREEK

2 MI.E.OF WARFORDSBURG, Fulton, PA

Built 1988 Load: 37.2 t ADT: 154

SR 2005

Fair

Over: TONOLOWAY CREEK

0.9 MILE NORTH OF TR 655, Fulton, PA

Built 1952 Load: 37.2 t ADT: 551

SR 4001

Fair

Over: OWL CREEK

4 MI.SE.OF SALUVIA, Fulton, PA

Built 1948 Load: 37.2 t ADT: 356

IRON ROCK RD 453

Fair

Over: HARGUS CREEK

CENTER TOWNSHIP, Greene, PA

Built 1966 Load: 37.2 t ADT: 30

PA 350

Fair

Over: TRIB WARRIORS MARK RUN

0.7 MILE NORTH OF PA 550, Huntingdon, PA

Built 1932 Load: 37.2 t ADT: 909

SR 1019

Fair

Over: E.BR.STANDING STONE CRK.

0.4 MILE SOUTH OF SR 1025, Huntingdon, PA

Built 1950 Load: 37.2 t ADT: 280

T602 CUNNINGHAM RD

Fair

Over: STANDING STONE CREEK

1 MI.SW.OF ENNISVILLE, Huntingdon, PA

Built 1926 Load: 37.2 t ADT: 68

SR0119 NB

Fair

Over: SR0286

HAMILL NB, Indiana, PA

Built 1970 Load: 37.2 t ADT: 2,824

T-842 MAZZA STREET

Fair

Over: YELLOW CREEK

TWP#4+90 BTW T430 & T840, Indiana, PA

Built 1986 Load: 37.2 t ADT: 350

T-830 RAIRIGH RD

Fair

Over: LITTLE MAHONING CREEK

0.9 MI SE OF SR1037, Indiana, PA

Built 1988 Load: 37.2 t ADT: 100

SR0080 WB

Fair

Over: SR1005

HORMTOWN NO.2, Jefferson, PA

Built 1964 Load: 37.2 t ADT: 10,486

SR2025

Fair

Over: SANDY LICK CREEK

FULLER, Jefferson, PA

Built 1984 Load: 37.2 t ADT: 418

SR3031

Fair

Over: LICK RUN

NORTH OF COOLSPRING, Jefferson, PA

Built 1939 Load: 37.2 t ADT: 256

T-602 PANCOAST RD

Fair

Over: SANDY LICK CREEK

0.3 MI S OF SR 950, Jefferson, PA

Built 1991 Load: 37.2 t ADT: 217

SR 2019

Fair

Over: CRANES RUN

1 MI S SEVEN STARS, Juniata, PA

Built 1940 Load: 37.2 t ADT: 843

SR 2028

Fair

Over: DUTCHMAN RUN

5 MI E EAST SALEM, Juniata, PA

Built 1959 Load: 37.2 t ADT: 253

SR 6006 BUSINESS 6

Fair

Over: RACKET BROOK

CARBONDALE 200 W TR 171, Lackawanna, PA

Built 1963 Load: 37.2 t ADT: 9,072

SR1008 CHESTNUT ST

Fair

Over: LACKAWANNA RIVER

MAYFIELD BO 353E SR 1023, Lackawanna, PA

Built 1963 Load: 37.2 t ADT: 622

US 222 SB; SR 0222

Fair

Over: 1029(Jake Landis)/Kurtz

3.5 MI.N. OF US 30, Lancaster, PA

Built 1972 Load: 37.2 t ADT: 26,428

US 222 SB; SR 0222

Fair

Over: SR 1040; SPUR ROAD

2 MI. E. OF REAMSTOWN, Lancaster, PA

Built 1972 Load: 37.2 t ADT: 17,953

US 322; W.Main St.

Fair

Over: COCALICO CREEK

EPHRATA BORO, Lancaster, PA

Built 1964 Load: 37.2 t ADT: 12,929

PA 372; SR 0372

Fair

Over: Nickel Mines Run

1 mi.S.E. of Georgetown, Lancaster, PA

Built 1963 Load: 37.2 t ADT: 4,499

Showing 6,851-6,900 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.