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

T483 HOMER GAP RD

Fair

Over: HOMER GAP RUN

ORNERS CORNER, Blair, PA

Built 1954 Load: 32.7 t ADT: 820

T454 Lwr Clover C

Fair

Over: CLOVER CREEK

1.5 MI.SE.OF WILLIAMSBURG, Blair, PA

Built 1908 Load: 32.7 t ADT: 218

CANOE CREEK ROAD

Fair

Over: NEW CREEK

300 NORTH OF SR 1011, Blair, PA

Built 1976 Load: 32.7 t ADT: 300

SR 8004(99S > 22W)

Fair

Over: SR 1002

1 MI.W.OF HOLLIDAYSBURG, Blair, PA

Built 1983 Load: 32.7 t ADT: 9,128

SR 4041

Fair

Over: Nittany & Bald Eagle RR

.5 MI.S.OF BALD EAGLE, Blair, PA

Built 1973 Load: 32.7 t ADT: 6,101

US 6

Fair

Over: MILL CREEK

1 MI.W.OF BURLINGTON B., Bradford, PA

Built 1930 Load: 32.7 t ADT: 3,569

US 6

Fair

Over: BAILEY RUN

3MI.E.OF LUTHER MILLS, Bradford, PA

Built 1947 Load: 32.7 t ADT: 3,390

SR 0187

Fair

Over: TRIB.WAPPASENING CREEK

1 MI N OF WINDHAM CENTER, Bradford, PA

Built 1948 Load: 32.7 t ADT: 1,635

SR 0220

Fair

Over: OVER BEAVER RUN

NEW ALBANY BORO, Bradford, PA

Built 1924 Load: 32.7 t ADT: 2,284

SR 0220

Fair

Over: LADDS CREEK

NEW ALBANY BORO, Bradford, PA

Built 1920 Load: 32.7 t ADT: 3,871

SR 220

Fair

Over: KENT RUN CREEK

VILLAGE OF KELLOGG, Bradford, PA

Built 1940 Load: 32.7 t ADT: 3,871

SR 220

Fair

Over: TRIB.TO S.BR.TOWANDA CR.

2 MI. S.OF MONROETON BORO, Bradford, PA

Built 1928 Load: 32.7 t ADT: 3,871

SR 0220

Fair

Over: TRIB.TO TOWANDA CREEK

3 MI.S.OF TOWANDA BORO, Bradford, PA

Built 1959 Load: 32.7 t ADT: 7,637

SR 0367

Fair

Over: TUSCARORA CREEK

.2 MI.N.OF SILVARA, Bradford, PA

Built 1921 Load: 32.7 t ADT: 701

SR 0414

Fair

Over: WALLACE BROOK

VILLAGE OF WEST LEROY, Bradford, PA

Built 1963 Load: 32.7 t ADT: 2,314

SR 0414

Fair

Over: TRIB. TO TOWANDA CREEK

1 MI.E.OF WEST LEROY, Bradford, PA

Built 1919 Load: 32.7 t ADT: 2,314

SR 414

Fair

Over: PREACHER BROOK

1 MI.WEST OF FRANKLINDALE, Bradford, PA

Built 1969 Load: 32.7 t ADT: 1,723

SR 467

Fair

Over: TAYLERS CREEK

3.5 MILE SE OF ROME BORO, Bradford, PA

Built 1923 Load: 32.7 t ADT: 1,658

PA 514

Fair

Over: TRIB NO BR TOWANDA CRK

4 MI.N.W.OF WEST FRANKLIN, Bradford, PA

Built 1932 Load: 32.7 t ADT: 542

PA 514

Fair

Over: TRIB NO BR TOWANDA CREEK

4.5 MI.NW.OF W.FRANKLIN, Bradford, PA

Built 1932 Load: 32.7 t ADT: 542

SR 1021

Fair

Over: RUMMERFIELD CREEK

2 MI.N.OF RUMMERFIELD, Bradford, PA

Built 1924 Load: 32.7 t ADT: 229

SR 1029

Fair

Over: TRIB TO BULLARDS CREEK

.5 MI N OF N ROME, Bradford, PA

Built 1961 Load: 32.7 t ADT: 185

SR 1043

Fair

Over: DEER LICK CREEK

VILLAGE OF SHESHEQUIN, Bradford, PA

Built 1949 Load: 32.7 t ADT: 1,685

SR 1056

Fair

Over: TRIB. TO SATTERLEE CREEK

5. MI EAST OF ATHENS BORO, Bradford, PA

Built 1949 Load: 32.7 t ADT: 779

SR 2012

Fair

Over: TRIB.TO SUSQUEHANNA RIVE

VILLAGE OF VIALL HILL, Bradford, PA

Built 1961 Load: 32.7 t ADT: 76

SR 2017

Fair

Over: BENNETTS CREEK

2.5 MI SOUTH OF DURELL, Bradford, PA

Built 1955 Load: 32.7 t ADT: 363

SR 2027

Fair

Over: TRIBUTARY TOWANDA CREEK

2 MI. S.OF TOWANDA BORO, Bradford, PA

Built 1959 Load: 32.7 t ADT: 6,188

SR 3018

Fair

Over: MONRTNSHIPPERSLIFELINERR

BRIDGE ST TOWANDA BORO, Bradford, PA

Built 1940 Load: 32.7 t ADT: 1,188

S.R. 3027

Fair

Over: ALBA CREEK

2 MI.S. OF ALBA BORO, Bradford, PA

Built 1900 Load: 32.7 t ADT: 286

SR 3029

Fair

Over: GULF CREEK

GRANVILLE CENTER, Bradford, PA

Built 1940 Load: 32.7 t ADT: 72

SR 4004

Fair

Over: TRIBUTARY BROWNS CREEK

0.5 MI EAST OF RIGGS, Bradford, PA

Built 1948 Load: 32.7 t ADT: 295

SR 4014

Fair

Over: OVER TOMJACK CREEK

.5 MI W OF E. SMITHFIELD, Bradford, PA

Built 1953 Load: 32.7 t ADT: 2,167

SR 4015

Fair

Over: MILL CREEK

1 MI. N. 0F WETONA, Bradford, PA

Built 1948 Load: 32.7 t ADT: 156

T-524 TWP. BR. #1

Fair

Over: BAILEY RUN

1.6 MI E OF LUTHER MILLS, Bradford, PA

Built 1950 Load: 32.7 t ADT: 50

T-902 LITCHFIELD

Fair

Over: SATTERLEE CREEK

0.1 MI S. COTTONS CORNERS, Bradford, PA

Built 1977 Load: 32.7 t ADT: 50

T- 684

Fair

Over: MILLERS RUN

2 MI S. OF BENTLEY CREEK, Bradford, PA

Built 1955 Load: 32.7 t ADT: 50

T-687 (BR.#1)

Fair

Over: SNYDER CREEK

2 MI. NORTH OF ULSTER, Bradford, PA

Built 1977 Load: 32.7 t ADT: 500

T-720 (BR.# 3)

Fair

Over: LANING CREEK

4.2 MI. EAST OF ULSTER, Bradford, PA

Built 1930 Load: 32.7 t ADT: 50

T-532 (CO.BR.#35)

Fair

Over: SUGAR CREEK

1.2 MI. EAST OF TROY, Bradford, PA

Built 1921 Load: 32.7 t ADT: 150

DURHAM ROAD

Fair

Over: NORTH BR.NESHAMINY CREEK

.5MI.TO LR-09075 17D12, Bucks, PA

Built 1931 Load: 32.7 t ADT: 5,796

GEIGEL HILL ROAD

Fair

Over: BRANCH SWAMP CREEK

1MI.W.RIVER ROAD 11H02, Bucks, PA

Built 1985 Load: 32.7 t ADT: 894

STREET ROAD

Fair

Over: AMTRAK N-S MAIN LINE

2MI.S. LANGHORNE 45K01, Bucks, PA

Built 1963 Load: 32.7 t ADT: 14,726

BIG OAK ROAD

Fair

Over: ROCK RUN

WEST MORRISVILLE 38G04, Bucks, PA

Built 1955 Load: 32.7 t ADT: 6,723

BRISTOL ROAD

Fair

Over: BR.LITTLE NESHAMINY CR.

1/4 W.IVYLAND BORO.34J03, Bucks, PA

Built 1923 Load: 32.7 t ADT: 13,579

OXFORD VALLEY ROAD

Fair

Over: QUEEN ANNE CREEK

.5MI.TULLYTOWN BO. 42J04, Bucks, PA

Built 1959 Load: 32.7 t ADT: 15,556

CENTRE AVENUE

Fair

Over: NEWTOWN CREEK

NEWTOWN BORO. 36J01, Bucks, PA

Built 1796 Load: 32.7 t ADT: 4,254

BRIDGE ST / 3152G7

Fair

Over: BRANCH DELAWARE RIVER

MORRISVILLE BORO. 39D04, Bucks, PA

Built 1942 Load: 32.7 t ADT: 14,803

IRISH MEETINGHOUSE

Fair

Over: BRANCH OF DEEP RUN

BEDMINSTER TWP. 16A09, Bucks, PA

Built 1928 Load: 32.7 t ADT: 1,519

LAWN AVENUE

Fair

Over: TRAFFIC ROUTE 309

NORTH SELLERSVILLE 20B02, Bucks, PA

Built 1967 Load: 32.7 t ADT: 9,661

CALLOWHILL STREET

Fair

Over: EAST BR PERKIOMEN CREEK

EAST ROCKHILL TWP. 20J01, Bucks, PA

Built 1948 Load: 32.7 t ADT: 8,253

Showing 4,101-4,150 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.