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

CHESTER PIKE

Poor

Over: DARBY CREEK

.1MI.E.OF US-13 36B05, Delaware, PA

Built 1931 Load: 33.6 t ADT: 13,380

SR 948-PA 948

Poor

Over: LITTLE MILL CREEK

2 MI N MONTMORENCI, Elk, PA

Built 1951 Load: 33.6 t ADT: 1,172

SR 1013 WILLIAMS R

Poor

Over: OVER SR 0090 EB/WB

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 33.6 t ADT: 220

TWP RD 545

Poor

Over: BR OF REDSTONE CREEK

WEST OF SR 51, Fayette, PA

Built 1928 Load: 33.6 t ADT: 50

SR 666 D ZEIS HWY

Poor

Over: OVER UPPER SHERIFF RUN

HOWE TOWNSHIP, Forest, PA

Built 1983 Load: 33.6 t ADT: 139

US 522

Poor

Over: KENDALL RUN

2.1 MILE SOUTH OF PA 16, Fulton, PA

Built 1941 Load: 33.6 t ADT: 3,645

SR 0221

Poor

Over: BOYD RUN

WASHINGTON TOWNSHIP, Greene, PA

Built 1925 Load: 33.6 t ADT: 2,037

SR 2035

Poor

Over: WHITELEY CREEK

GREENE TOWNSHIP, Greene, PA

Built 1966 Load: 33.6 t ADT: 203

SR1047

Poor

Over: TR N BR STRAIGHT RUN

UNION HILL, Indiana, PA

Built 1935 Load: 33.6 t ADT: 334

SR3010

Poor

Over: BLACKLEGS CREEK

REARICK ROAD NO.1, Indiana, PA

Built 1952 Load: 33.6 t ADT: 86

SR 1046

Poor

Over: TRIB. TO MUDDY CREEK

0.5 MI.W. OF BOWMANSVILLE, Lancaster, PA

Built 1955 Load: 33.6 t ADT: 1,533

SOUTH MAIN ST

Poor

Over: BR.OF HICKORY RUN

446 S OF SR 317, Lawrence, PA

Built 1930 Load: 33.6 t ADT: 601

SR1011 (8TH AVE)

Poor

Over: NORFOLK SOUTHERN RR

AT RTE. 378 INTERCHANGE, Lehigh, PA

Built 1967 Load: 33.6 t ADT: 18,578

WOOD STREET

Poor

Over: CATASAUQUA CREEK

100 E. OF AMERICAN ST., Lehigh, PA

Built 1950 Load: 33.6 t ADT: 500

I-81 NB

Poor

Over: BIG WAPWALLOPEN CREEK

DORRANCE TWP .2M N SR3010, Luzerne, PA

Built 1965 Load: 33.6 t ADT: 18,137

SR 0081 I-81 NB

Poor

Over: SR 6309

ASHLEY BORO OVER SR 6309, Luzerne, PA

Built 1967 Load: 33.6 t ADT: 24,394

SR 46-PA 46

Poor

Over: TUNUNGWANT CREEK

BRADFORD N KENDALL AVE, McKean, PA

Built 1973 Load: 33.6 t ADT: 4,642

SR 4013

Poor

Over: BOLIVAR RUN

BRADFORD, McKean, PA

Built 1936 Load: 33.6 t ADT: 4,769

SR 19 PERRY HWY.

Poor

Over: OVER SHENANGO RIVER TRIB

PERRY TOWNSHIP, Mercer, PA

Built 1942 Load: 33.6 t ADT: 2,013

SR 846 ORNGVLLE.RD

Poor

Over: OVER BIG RUN TRIB

WEST SALEM TOWNSHIP, Mercer, PA

Built 1910 Load: 33.6 t ADT: 680

BRIDGE 1916 T-547

Poor

Over: OVER MAGARGEE RUN

HASSEL RD JEFFERSON TWP, Mercer, PA

Built 1975 Load: 33.6 t ADT: 152

SR 54

Poor

Over: OVER MUD CREEK

BORO OF WASHINGTONVILLE, Montour, PA

Built 1930 Load: 33.6 t ADT: 4,581

SR 1016 (LR 48036)

Poor

Over: TRIB.TO BUSHKILL CREEK

5 MI.SW OF BANGOR, Northampton, PA

Built 1927 Load: 33.6 t ADT: 798

PA 125

Poor

Over: BLACK CREEK

3 MI. S. OF TREMONT, Schuylkill, PA

Built 1930 Load: 33.6 t ADT: 3,506

PA 339 (LR 53066)

Poor

Over: CATAWISSA CREEK

3 M.S.OF ZIONS GROVE, Schuylkill, PA

Built 1932 Load: 33.6 t ADT: 323

PINE HILL RD

Poor

Over: KERSHNERS CREEK

LEIBYVILLE, Schuylkill, PA

Built 1934 Load: 33.6 t ADT: 320

SR 2004

Poor

Over: T.MAHANTANGO CREEK

1 MI N OF PALLAS, Snyder, PA

Built 1941 Load: 33.6 t ADT: 211

SPRING T822 #760

Poor

Over: OVER BEAVER CREEK

2MI SW OF BEAVER SPRINGS, Snyder, PA

Built 1962 Load: 33.6 t ADT: 150

SR 4033

Poor

Over: ROARING RUN

PILLTOWN, Somerset, PA

Built 1908 Load: 33.6 t ADT: 100

SR 0081 I-81 NB

Poor

Over: SR 0374

LENOX TWP OVER SR 0374, Susquehanna, PA

Built 1961 Load: 33.6 t ADT: 9,285

SR 1018

Poor

Over: NORFOLK SOUTHERN RR

NEW MILFORD TP 100W TR11, Susquehanna, PA

Built 1915 Load: 33.6 t ADT: 1,131

SR 69 JCKSN.RUN RD

Poor

Over: JACKSON RUN

CONEWANGO TOWNSHIP, Warren, PA

Built 1952 Load: 33.6 t ADT: 3,200

T-306 MOUNT HOPE R

Poor

Over: OVER PINE CREEK

SOUTHWEST TOWNSHIP, Warren, PA

Built 1907 Load: 33.6 t ADT: 50

T-429 JACKSON HILL

Poor

Over: OVER SPRING CREEK

SPRING CREEK TOWNSHIP, Warren, PA

Built 1910 Load: 33.6 t ADT: 50

SR 0370 TR 370

Poor

Over: EAST BR LACKAWANNA RIVER

PRESTON TWP .1M E CO LINE, Wayne, PA

Built 1948 Load: 33.6 t ADT: 712

SR 0286

Poor

Over: SR 0286 & SR 4058

MUNICIPAL. OF MURRYSVILLE, Westmoreland, PA

Built 1953 Load: 33.6 t ADT: 3,543

SR 3093

Poor

Over: WILSON RUN

NEW STANTON BOROUGH, Westmoreland, PA

Built 1957 Load: 33.6 t ADT: 6,504

PLAN COURT

Poor

Over: PUCKETA CREEK

WEST OF SR 380/366 INTER, Westmoreland, PA

Built 1940 Load: 33.6 t ADT: 100

SR 2050 cent.farms

Poor

Over: CARTERS RUN

2 MILE NE OF CROSSROADS, York, PA

Built 1938 Load: 33.6 t ADT: 122

WALKER ROAD

Poor

Over: TROUT RUN; N.CEN.RR

1 S.GLEN ROCK/RR/RD/CRK, York, PA

Built 1985 Load: 33.6 t ADT: 200

34TH STREET

Poor

Over: CSX RAILROAD

GRAYS FERRY AVE. 3589J10, Philadelphia, PA

Built 1930 Load: 33.6 t ADT: 26,627

65TH STREET

Poor

Over: AMTRAK (MAIN LINE)MP5.69

NR.GLENMORE AVENUE3699C03, Philadelphia, PA

Built 1913 Load: 33.6 t ADT: 6,588

SR 103-PA 103

Poor

Over: JACKS CREEK

LEWISTOWN BOROUGH, Mifflin, PA

Built 1965 Load: 33.6 t ADT: 2,324

GUN CLUB ROAD

Poor

Over: TRIB. TO MILL CREEK

AT RTE. 737 INTERSECTION, Berks, PA

Built 1939 Load: 33.6 t ADT: 150

T-336 (Quarry Rd.)

Poor

Over: Mountain Creek

0.2 MI from Bendersville, Cumberland, PA

Built 1950 Load: 33.6 t ADT: 99

CHAPMAN ROAD

Poor

Over: PINE RUN

DOYLESTOWN TWP. 2922-F8, Bucks, PA

Built 1990 Load: 34.3 t ADT: 200

ZOO ROAD

Poor

Over: TOMS CREEK

1.5 SW FAIRFIELD/TOMS CRK, Adams, PA

Built 1967 Load: 34.5 t ADT: 100

SOUTH NEGLEY AV

Poor

Over: N-S RR & PAT EBUSWAY

102 S Negley Ave Bridge, Allegheny, PA

Built 1924 Load: 34.5 t ADT: 15,000

SR1028

Poor

Over: N BR S FRK PINE CREEK

ECHO CHURCH, Armstrong, PA

Built 1925 Load: 34.5 t ADT: 145

SR4010

Poor

Over: TRIB TO BUFFALO CREEK

WORTHINGTON NO.6, Armstrong, PA

Built 1925 Load: 34.5 t ADT: 730

Showing 22,551-22,600 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.