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

T-620 WIGHTMAN RD.

Poor

Over: OVER CONNEAUT OUTLET

.7 MI.NW. SR 0285, Crawford, PA

Built 1897 Load: 5.4 t ADT: 250

LADNOR LANE T-575

Poor

Over: MOUNTAIN CREEK

0.9 MI NE OF SR 34, Cumberland, PA

Built 1920 Load: 5.4 t ADT: 100

T-314 (ARROYO RD)

Poor

Over: CROW RUN

3200FT S LR24002-T314 INT, Elk, PA

Built 1960 Load: 5.4 t ADT: 100

LOVERS LEAP ROAD

Poor

Over: GEORGES CREEK

NICHOL-SPRINGHILL BORDER, Fayette, PA

Built 1918 Load: 5.4 t ADT: 25

T-346 CATHERS RUN

Poor

Over: CATHERS RUN

0.8 MILE S. OF SR 36, Jefferson, PA

Built 1936 Load: 5.4 t ADT: 50

POPLAR STREET

Poor

Over: LACKAWANNA RIVER

600 SE OF 7TH AVENUE, Lackawanna, PA

Built 1978 Load: 5.4 t ADT: 1,740

IRON BRIDGE RD

Poor

Over: LITTLE CHIQUES CREEK

1 MI EAST OF SR 772, Lancaster, PA

Built 1964 Load: 5.4 t ADT: 650

LEVANS IRON BRIDGE

Poor

Over: LITTLE SWATARA CREEK

0.6 MI NE OF QUARRY ROAD, Lebanon, PA

Built 1904 Load: 5.4 t ADT: 50

T-615 CTY BR # 112

Poor

Over: LARRYS CREEK

2.7 MI SW OF COGAN HOUSE, Lycoming, PA

Built 1877 Load: 5.4 t ADT: 10

DAVIS STREET

Poor

Over: W BR TUNUNGWANT CREEK

AT MILLER ST INTERSECT, McKean, PA

Built 1959 Load: 5.4 t ADT: 800

SR 2021 (LR 461 W)

Poor

Over: MARSHALL CREEK

GAP VIEW DR.(T-660), Monroe, PA

Built 1932 Load: 5.4 t ADT: 1,105

TWP 804

Poor

Over: S BRANCH OF ROARING CR

E. OF ELYSBURG, Northumberland, PA

Built 1852 Load: 5.4 t ADT: 150

FOREST DRIVE

Poor

Over: DEEP CREEK

T-480 FOREST DRIVE, Schuylkill, PA

Built 1930 Load: 5.4 t ADT: 150

T-364 JIMTOWN ROAD

Poor

Over: LAUREL HILL CREEK

1 MI. S. OF BAKERSVILLE, Somerset, PA

Built 1900 Load: 5.4 t ADT: 50

SR4016 STNLY LK RD

Poor

Over: CHOCONUT CREEK

CHOCONUT TWP JCT TR 267, Susquehanna, PA

Built 1961 Load: 5.4 t ADT: 895

T-376 CTY BR. 20

Poor

Over: BUFFALO CREEK

2.3 MI. W OF MIFFLINBURG, Union, PA

Built 1900 Load: 5.4 t ADT: 150

SPROWLS BRIDGET450

Poor

Over: WHEELING CREEK TRIB

150 EAST OF SR 3035, Washington, PA

Built 1890 Load: 5.4 t ADT: 20

TRAUX BRIDGE TR348

Poor

Over: HARMON CREEK

300 SOUTH OF TR-319, Washington, PA

Built 1964 Load: 5.4 t ADT: 60

SR 3001

Poor

Over: MEHOOPANY CREEK

FORKSTON TP 4.9 M S TR 87, Wyoming, PA

Built 1975 Load: 5.4 t ADT: 31

SR 4019

Poor

Over: MESHOPPEN CREEK

WASHINGTON TP JCT SR 4008, Wyoming, PA

Built 1966 Load: 5.4 t ADT: 1,433

ANSONIA PL

Poor

Over: SAW MILL RUN

006 Ansonia Pl Bridge, Allegheny, PA

Built 1925 Load: 6.4 t

Grant Avenue

Poor

Over: Girtys Run

Int Grant Ave North Ave, Allegheny, PA

Built 1914 Load: 6.4 t ADT: 4,500

VALLEY ROAD

Poor

Over: SPRING CREEK

NORTH OF MONOCACY HILL RD, Berks, PA

Built 1964 Load: 6.4 t ADT: 100

SCHARFF ROAD

Poor

Over: TULPEHOCKEN CREEK

2 MI.W.OF WOMELSDORF, Berks, PA

Built 1902 Load: 6.4 t ADT: 280

COVERED BRIDGE RD

Poor

Over: PIDCOCK CREEK

1.4 M W SR32 ADC 2925-G8, Bucks, PA

Built 1875 Load: 6.4 t ADT: 150

T-487 WOODLAND RD

Poor

Over: THORN CREEK

BTW T564 & T488, Butler, PA

Built 1979 Load: 6.4 t ADT: 200

WARWICK FURNACE RD

Poor

Over: SOUTH BR. FRENCH CREEK

1.6 Mi S PA-23 3249-F6, Chester, PA

Built 1889 Load: 6.4 t ADT: 565

BERTOLET SCHOOL RD

Poor

Over: FRENCH CREEK

0.5 Mi. S. SR1028 3250-F5, Chester, PA

Built 1905 Load: 6.4 t ADT: 171

SPRING CITY ROAD

Poor

Over: STONY RUN

EAST PIKELAND TWP.3252-E7, Chester, PA

Built 1958 Load: 6.4 t ADT: 3,554

FULMER RD. T-500

Poor

Over: PIGEON CREEK

3 MI.S.POTTSTOWN 3138-J10, Chester, PA

Built 1930 Load: 6.4 t ADT: 300

KELLYTOWN ROAD

Poor

Over: POTTS RUN

1 MILE E OF SR 0453, Clearfield, PA

Built 1905 Load: 6.4 t

SR 4036

Poor

Over: HEMLOCK CREEK

TOWN OF BLOOMSBURG, Columbia, PA

Built 1926 Load: 6.4 t ADT: 532

T-962 JORDAN DRIVE

Poor

Over: OVER FRENCH CREEK

JUST OUTSIDE SAEGERTOWN, Crawford, PA

Built 1900 Load: 6.4 t ADT: 250

T-780 BORT ROAD

Poor

Over: CSX

600 FT SOUTH OF SR 20, Erie, PA

Built 1920 Load: 6.4 t ADT: 234

HARVEY HILL ROAD

Poor

Over: GRAYS FORK

BETWEEN RUTAN & GRAYSVILL, Greene, PA

Built 1966 Load: 6.4 t ADT: 20

SR 0690 TR 690

Poor

Over: ROARING BROOK

MOSCOW BORO .2M E SR 2005, Lackawanna, PA

Built 1961 Load: 6.4 t ADT: 2,534

T-325 PROSPECT RD

Poor

Over: CONEWAGO CREEK

800 FT NORTH OF SR 241, Lancaster, PA

Built 1935 Load: 6.4 t ADT: 50

MCCONNELS MILL RD

Poor

Over: SLIPPERY ROCK CREEK

037020 SLIPPERY ROCK TWP, Lawrence, PA

Built 1875 Load: 6.4 t ADT: 150

T-409 REILLY ROAD

Poor

Over: TULPEHOCKEN CREEK

300 S OF TULPENHOCKEN RD, Lebanon, PA

Built 1900 Load: 6.4 t ADT: 200

T-629

Poor

Over: SLACKS RUN

0.3 MI NE OF BODINES, Lycoming, PA

Built 1940 Load: 6.4 t ADT: 108

CAMPUS DRIVE

Poor

Over: BENNETT BROOK

400 SOUTH OF BARBOUR ST, McKean, PA

Built 1955 Load: 6.4 t ADT: 1,000

BRIDGE 1015 T-740

Poor

Over: OVER LITTLE SHENANGO R.

MILL RD PERRY TOWNSHIP, Mercer, PA

Built 1885 Load: 6.4 t ADT: 57

T-315

Poor

Over: JACKS CREEK

2400FT SE OF LR44007, Mifflin, PA

Built 1974 Load: 6.4 t ADT: 390

WAVERLY ROAD

Poor

Over: TACONY CREEK

.16MI SW EASTONRD 3370-F5, Montgomery, PA

Built 1951 Load: 6.4 t ADT: 2,439

T-387

Poor

Over: SCHWABEN CREEK

WEST OF REBUCK, Northumberland, PA

Built 1960 Load: 6.4 t ADT: 60

T-378 CREEK ROAD

Poor

Over: E BR WALLENPAUPACK CREEK

1.0 MI EAST OF SR 3001, Pike, PA

Built 1970 Load: 6.4 t ADT: 50

APPLEGATE BRIDGE

Poor

Over: SUGAR CAMP RUN

1.5 Miles South of 844, Washington, PA

Built 1911 Load: 6.4 t ADT: 30

T827 Lloyd Ave Ext

Poor

Over: MONASTERY RUN

BTW T600 & SR981, Westmoreland, PA

Built 1979 Load: 6.4 t ADT: 4,000

OLD WILL PENN HIGH

Poor

Over: TURTLE CREEK

EXPORT/MURRYSVILLE LINE, Westmoreland, PA

Built 1982 Load: 6.4 t ADT: 10,000

PLEASANT ACRES RD.

Poor

Over: NORFOLK SOUTHERN RR

STONYBROOK DEVELOP/NF RR, York, PA

Built 1961 Load: 6.4 t ADT: 2,952

Showing 20,651-20,700 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.