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 1010

Fair

Over: DICKERSON RUN

DUNBAR TOWNSHIP, Fayette, PA

Built 1900 Load: 32.7 t ADT: 444

SR 2003

Fair

Over: BIG SANDY CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 1951 Load: 32.7 t ADT: 479

SR 2004

Fair

Over: BIG SANDY CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 1948 Load: 32.7 t ADT: 79

SR 4006

Fair

Over: LILLY RUN

LUZERNE & REDSTONE TWP., Fayette, PA

Built 1961 Load: 32.7 t ADT: 2,708

OLIVER RD

Fair

Over: REDSTONE CREEK

OLIVER LIMITS, Fayette, PA

Built 1960 Load: 32.7 t ADT: 5,600

ROGERS MILL ROAD

Fair

Over: BUCK RUN

AT ROGERS MILLS, Fayette, PA

Built 1910 Load: 32.7 t ADT: 300

PENN STREET

Fair

Over: REDSTONE CREEK

300 EAST OF GALLATIN AVE, Fayette, PA

Built 1930 Load: 32.7 t ADT: 7,000

SR 2005 LOLETA RD

Fair

Over: OVER BRUSH CREEK

JENKS TOWNSHIP, Forest, PA

Built 1937 Load: 32.7 t ADT: 186

T-372

Fair

Over: OVER S.BR. TIONESTA CR.

HOWE TOWNSHIP, Forest, PA

Built 1992 Load: 32.7 t ADT: 25

PA 233; rocky mtn.

Fair

Over: ROCKY MT CREEK

1 MI S CALEDONIA, Franklin, PA

Built 1950 Load: 32.7 t ADT: 1,349

PA 641; Newburg rd

Fair

Over: TRIB PAXTONS RUN

1 MI.E. OF ROXBURY, Franklin, PA

Built 1981 Load: 32.7 t ADT: 1,356

PA 641; Newburg rd

Fair

Over: LAUGHLIN RUN

4 MI.E. OF ROXBURY, Franklin, PA

Built 1932 Load: 32.7 t ADT: 1,356

SR 2002 Lietersbrg

Fair

Over: MARSH RUN

1.5MI E OF WINGERTON, Franklin, PA

Built 1925 Load: 32.7 t ADT: 1,140

SR 2007;Midvale Rd

Fair

Over: Falls Run

1 Mi. S. of Rouzerville, Franklin, PA

Built 1962 Load: 32.7 t ADT: 5,303

SR 2007 MENTZER RD

Fair

Over: BR. LITTLE ANTIETAM CREE

0.5 MI NE OF ROADSIDE, Franklin, PA

Built 1971 Load: 32.7 t ADT: 2,708

SR 2029

Fair

Over: FALLING SPRING CREEK

FALLING SPRINGS, Franklin, PA

Built 1975 Load: 32.7 t ADT: 3,735

SR 3013 Stone Br.

Fair

Over: EAST BR CONOCOCHEAQUE

2.5 MI W OF WILLIAMSON, Franklin, PA

Built 1930 Load: 32.7 t ADT: 920

Fannettsburg Road

Fair

Over: W.BR.CONOCOCHEAGUE CREEK

0.35 MI SE OF SR533, Franklin, PA

Built 1825 Load: 32.7 t ADT: 559

SR 4007 .

Fair

Over: DRY RUN

DRY RUN, Franklin, PA

Built 1934 Load: 32.7 t ADT: 418

SR 4010

Fair

Over: N. BR WILSON RUN

1 MI.N.E. OF EDENVILLE, Franklin, PA

Built 1926 Load: 32.7 t ADT: 1,545

SR 4010 edenville

Fair

Over: DENNIS CREEK

3 MI.E.OF EDENSVILLE, Franklin, PA

Built 1900 Load: 32.7 t ADT: 1,545

COLD SPRING RD

Fair

Over: CONOCOCHEAGUE CREEK

0.4 MI NORTH OF SR 1008, Franklin, PA

Built 1983 Load: 32.7 t ADT: 500

BOUNDARY RD

Fair

Over: ROCKY SPRING TRIB

0.3 MI EAST OF KEEFER RD, Franklin, PA

Built 1997 Load: 32.7 t ADT: 200

HILL ROAD

Fair

Over: CONOCOCHEAGUE CREEK W.BR

1.05 MI NE OF SR75, Franklin, PA

Built 1825 Load: 32.7 t ADT: 250

OLD FORGE ROAD

Fair

Over: E. BR. LITTLE ANTIETAM

5 NE WBORO/E BR L ANTIE, Franklin, PA

Built 1950 Load: 32.7 t ADT: 300

SYLVAN DRIVE

Fair

Over: LITTLE COVE CREEK

400 FT EAST OF SR 456, Franklin, PA

Built 1964 Load: 32.7 t ADT: 150

WEST KING STREET

Fair

Over: CONOCOCHEAGUE CREEK

750 FT N OF US 30, Franklin, PA

Built 1828 Load: 32.7 t ADT: 3,700

I-70 EBL

Fair

Over: INDIAN GRAVE RUN

0.6 MI W OF AMARANTH, Fulton, PA

Built 1955 Load: 32.7 t ADT: 5,410

I-70

Fair

Over: LITTLE TONOLOWAY CREEK

0.9MI.E. AMARANTH EXIT, Fulton, PA

Built 1960 Load: 32.7 t ADT: 14,030

I-70 EBL

Fair

Over: SR 3009

1.5 MI.N. OF WARFORDSBURG, Fulton, PA

Built 1960 Load: 32.7 t ADT: 7,008

I-70 EBL

Fair

Over: LITTLE TONOLOWAY CREEK

0.6 MILE WEST OF TR 522, Fulton, PA

Built 1960 Load: 32.7 t ADT: 7,008

I-70 WBL

Fair

Over: LITTLE TONOLOWAY CREEK

0.6 MILE WEST OF TR 522, Fulton, PA

Built 1960 Load: 32.7 t ADT: 7,022

PA 731

Fair

Over: MCKEES RUN

0.4 MI.S.OF AMARANTH EXIT, Fulton, PA

Built 1925 Load: 32.7 t ADT: 257

T384 WERTZVILLE RD

Fair

Over: CUMMINGS RUN

3 MI.N.OF NEEDMORE, Fulton, PA

Built 1959 Load: 32.7 t ADT: 410

PA TPK (I-76)

Fair

Over: WOODEN BRIDGE CRK

NEAR HUSTONTOWN, Fulton, PA

Built 1939 Load: 32.7 t ADT: 20,523

PA TPK (I-76)

Fair

Over: TEN MILE RUN

EAST OF FORT LITTLETON, Fulton, PA

Built 1939 Load: 32.7 t ADT: 21,197

SR 0079

Fair

Over: SR 0221 & RUFF CREEK

WASHINGTON TOWNSHIP, Greene, PA

Built 1966 Load: 32.7 t ADT: 11,156

SR 1006

Fair

Over: BR. LITTLE WHITELY CK.

CUMBERLAND TOWNSHIP, Greene, PA

Built 1938 Load: 32.7 t ADT: 1,477

SR 1011

Fair

Over: TENMILE CREEK

CLARKSVILLE BOROUGH, Greene, PA

Built 1961 Load: 32.7 t ADT: 1,757

SR 1019

Fair

Over: MUDDY CREEK

CUMBERLAND TOWNSHIP, Greene, PA

Built 1949 Load: 32.7 t ADT: 220

SR 1019

Fair

Over: COAL RUN

CUMBERLAND TOWNSHIP, Greene, PA

Built 1938 Load: 32.7 t ADT: 220

SR 3007

Fair

Over: BRANCH OF BLOCKHOUSE RUN

GILMORE TOWNSHIP, Greene, PA

Built 1918 Load: 32.7 t ADT: 171

SR 3010

Fair

Over: HEROD RUN

FREEPORT TOWNSHIP, Greene, PA

Built 1938 Load: 32.7 t ADT: 316

SR 3022

Fair

Over: POLEN RUN

RICHHILL TOWNSHIP, Greene, PA

Built 1938 Load: 32.7 t ADT: 97

T536 CHURCH RUN RD

Fair

Over: BRANCH OF SHARP RUN

1/2 MI NE OF SR 2011, Greene, PA

Built 1930 Load: 32.7 t ADT: 50

US 22

Fair

Over: TRIB.JUNIATA RIVER

0.4 MILE EAST OF TR 26, Huntingdon, PA

Built 1948 Load: 32.7 t ADT: 12,102

US 22

Fair

Over: SUGAR GROVE RUN

0.4 MILE EAST OF TR 829, Huntingdon, PA

Built 1940 Load: 32.7 t ADT: 10,583

US 22

Fair

Over: MILL CREEK

361 FEET WEST OF TR 655N, Huntingdon, PA

Built 1940 Load: 32.7 t ADT: 10,583

PA 350

Fair

Over: WARRIORS MARK RUN

1.6 MILE NORTH OF SR 4013, Huntingdon, PA

Built 1949 Load: 32.7 t ADT: 909

SR 2004

Fair

Over: LICK RUN

.5 MI.W.OF MEADOW GAP, Huntingdon, PA

Built 1950 Load: 32.7 t ADT: 179

Showing 4,401-4,450 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.