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

PACIFIC AVENUE

Poor

Over: WILLIS RUN

PACIFIC AV WILLIS RUN, York, PA

Built 1980 Load: 66.2 t ADT: 1,000

GIFFORD ROAD

Poor

Over: PRATHER CREEK

PLUM TOWNSHIP, Venango, PA

Built 1935 Load: 67.1 t ADT: 100

SR 0084 I-84 WB

Poor

Over: TR 435 SB

DUNMORE BORO OVER TR 435, Lackawanna, PA

Built 1974 Load: 68.0 t ADT: 18,181

SPANGLER RD.

Poor

Over: NORFOLK SOUTHERN

ADJACENT US15/HBG. XPRESS, Cumberland, PA

Built 1960 Load: 68.9 t ADT: 400

SR2012

Poor

Over: BLACKLICK CREEK

PLEASANT VALLEY, Indiana, PA

Built 1977 Load: 68.9 t ADT: 156

BRIDGE 3103 LINC

Poor

Over: OVER WOLF CREEK

LINCOLN AVE. GROVE CITY, Mercer, PA

Built 1981 Load: 68.9 t ADT: 3,473

PA 191(LR45054)

Poor

Over: MCMICHAEL CREEK

BROAD STREET STROUDSBURG, Monroe, PA

Built 1955 Load: 69.9 t ADT: 9,570

SR 2036

Poor

Over: PIKE RUN

CALIFORNIA BOROUGH, Washington, PA

Built 1916 Load: 69.9 t ADT: 1,277

PITTSBURG VALLEY

Poor

Over: WITMER RUN

BRIDGE NEXT TO 70 PITTSBU, Lancaster, PA

Built 1965 Load: 69.9 t ADT: 100

SR 1019

Poor

Over: CONEWAGO CREEK

EAST EDGE - YORK HAVEN, York, PA

Built 1985 Load: 70.8 t ADT: 1,185

VALLEY ROAD

Poor

Over: LITTLE NESHAMINY CREEK

LONGS MILL BRIDGE 34C01, Bucks, PA

Built 1965 Load: 73.5 t ADT: 1,000

SR 0022

Poor

Over: RACCOON CREEK

SMITH TOWNSHIP, Washington, PA

Built 1970 Load: 73.5 t ADT: 19,995

ONTARIO ST (T-512)

Poor

Over: BENNETT BRANCH

200FT E OF T518, Clearfield, PA

Built 1915 Load: 74.4 t ADT: 25

CHURCH ST.

Poor

Over: LOCUST CREEK

NW OF TUSCARORA, Schuylkill, PA

Built 1935 Load: 74.4 t ADT: 150

LOWER SCOTRUN

Poor

Over: SCOT RUN

SCOT RUN, Monroe, PA

Built 1940 Load: 76.2 t ADT: 100

PINEVIEW DRIVE

Poor

Over: GILLESPIE RUN

1000N.E.OF INTER.W/685, Allegheny, PA

Built 1930 Load: 78.0 t ADT: 1,625

SR 2014

Poor

Over: SLATE CREEK

SOUTH GREENSBURG BOROUGH, Westmoreland, PA

Built 1939 Load: 79.8 t ADT: 3,166

SR 155-PA 155

Poor

Over: PORTAGE CREEK

1 MI S SIZERVILLE, Cameron, PA

Built 1941 Load: 81.6 t ADT: 1,571

HONEY VALLEY ROAD

Poor

Over: INNERS CREEK

2SW OF DALLASTOWN/INNERS, York, PA

Built 1946 Load: 81.6 t ADT: 1,186

SR 0088

Poor

Over: WHITELEY CREEK

MONONGAHELA TOWNSHIP, Greene, PA

Built 1930 Load: 82.6 t ADT: 3,099

SR 0050 EB WB

Poor

Over: PGH & OHIO RAILWAY

@ INT. W/HOPE HOLLOW ROAD, Allegheny, PA

Built 1965 Load: 83.5 t ADT: 11,444

SR3009EVITTS CRKRD

Poor

Over: KOON LAKE

.5 M.S EVITTS(LOBSTOR), Bedford, PA

Built 1932 Load: 86.2 t ADT: 146

PA 611 (LR 166)

Poor

Over: SLATEFORD CREEK

SLATEFORD NO.DELAWARE DR., Northampton, PA

Built 1909 Load: 86.2 t ADT: 2,714

SR 3023

Poor

Over: POLLOCK RUN

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1926 Load: 86.2 t ADT: 210

T-867 PHILADELPHIA

Poor

Over: OVER STONE RUN

BEAVER TOWNSHIP, Crawford, PA

Built 1991 Load: 87.1 t ADT: 250

PA TURNPIKE (I-76)

Poor

Over: PLUM CREEK

NEAR PENN HILLS, Allegheny, PA

Built 1952 Load: 89.7 t ADT: 38,689

BRIDGE 2310 T-446

Poor

Over: OVER GOLDEN RUN

ROBERTSON RD.HERMITAGE, Mercer, PA

Built 1956 Load: 89.7 t ADT: 276

SR 2015(LR 140)

Poor

Over: SCHUYLKILL RIVER

MT.CARBON BORO LINE, Schuylkill, PA

Built 1925 Load: 89.7 t ADT: 5,429

T-486 Shady Lane

Poor

Over: Welty Run

1500 EAST OF SR 2025, Westmoreland, PA

Built 1925 Load: 89.7 t ADT: 75

Whitby Avenue

Poor

Over: Cobbs Creek

W of Cobbs Crk Pkwy.27G13, Philadelphia, PA

Built 1932 Load: 89.7 t ADT: 6,800

GRISTMILL ROAD

Poor

Over: IRONSTONE CREEK

DOUGLASS PARK/RR TRESTLE, Berks, PA

Built 1900 Load: 95.3 t ADT: 200

CONSTITUTION BL

Poor

Over: ELKHORN RUN

150 NORTH OF TWP.RD.490, Beaver, PA

Built 1930 Load: 99.8 t ADT: 9,739

T-536 EGG HILL RD

Poor

Over: SINKING CREEK

1100 FT SW OF INT SR 2008, Centre, PA

Built 1982 Load: 99.8 t ADT: 25

T-867 PHILADELPHIA

Poor

Over: OVER CONNEAUT CREEK E.BR

BEAVER TOWNSHIP, Crawford, PA

Built 1986 Load: 99.8 t ADT: 250

T-534 HAMOT ROAD

Poor

Over: ELK CREEK

1500 N OF ELK CRK ROAD, Erie, PA

Built 1980 Load: 99.8 t ADT: 669

SR 2011

Poor

Over: BEAVER CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 1931 Load: 99.8 t ADT: 675

SR 4003

Poor

Over: ABANDONED CSXT R/R

BROWNSVILLE BOROUGH, Fayette, PA

Built 1900 Load: 99.8 t ADT: 6,197

SR 4022

Poor

Over: RUSH RUN

LUZERNE TOWNSHIP, Fayette, PA

Built 1910 Load: 99.8 t ADT: 936

KING ROAD

Poor

Over: RIDGE VALLEY CREEK

0.9 Mi N SR563 2918-D6, Montgomery, PA

Built 1918 Load: 99.8 t ADT: 44

T-370 - FISHERMANS

Poor

Over: VICTORY RUN

1 MI. E. OF OLD RT. 8, Venango, PA

Built 1907 Load: 99.8 t ADT: 50

SR 0837

Poor

Over: MINGO RUN

NEW EAGLE BOROUGH, Washington, PA

Built 1931 Load: 99.8 t ADT: 6,481

SR 0356

Poor

Over: PINE RUN

ALLEGHENY TOWNSHIP, Westmoreland, PA

Built 1927 Load: 99.8 t ADT: 13,272

SR 0981

Poor

Over: REPKO RUN

NEW ALEXANDRIA BOROUGH, Westmoreland, PA

Built 1947 Load: 99.8 t ADT: 7,389

SR 4041

Poor

Over: HAYMAKERS RUN

MUNICIPAL. OF MURRYSVILLE, Westmoreland, PA

Built 1940 Load: 99.8 t ADT: 5,907

JENKS ROAD

Poor

Over: MARSH CREEK

2.5 MILES NW OF VERNON, Wyoming, PA

Built 1920 Load: 99.8 t ADT: 50

Cherokee Street

Poor

Over: Valley Green Road

W of Springfield Ave16J05, Philadelphia, PA

Built 1960 Load: 99.8 t ADT: 3,100

61st Street

Poor

Over: SEPTA (AHSL)

S of Eastwick Ave - 36H04, Philadelphia, PA

Built 1928 Load: 99.8 t ADT: 20,000

COLUMBUS AVE

Poor

Over: DRINKER CREEK

400FT FROM RT 92, Susquehanna, PA

Built 1920 Load: 99.8 t ADT: 25

SR 4050

Poor

Over: STREAM TO KISKIMINETAS

180 FT WEST OFF SR 4093, Westmoreland, PA

Built 1960 Load: 99.8 t ADT: 1,090

Showing 23,251-23,299 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.