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

LEONARD ST EXT

Poor

Over: RJ CORMAN RR

LEONARDSTEXTBEHINDPADOTOF, Clearfield, PA

Built 1902 Load: 0.0 t

T-537

Poor

Over: FISHING CREEK

0.3 MI. NE OF TYLERSVILLE, Clinton, PA

Built 1901 Load: 0.0 t ADT: 125

EAST CHURCH STREET

Poor

Over: FISHING CREEK

MILL HALL BOROUGH, Clinton, PA

Built 1973 Load: 0.0 t ADT: 250

T-557 CTY BR # 79

Poor

Over: LITTLE FISHING CREEK

1.3 MI SOUTH OF MILLVILLE, Columbia, PA

Built 1959 Load: 0.0 t ADT: 75

POPLAR STREET

Poor

Over: OVER MILL RUN

POPLAR STREET MEADVILLE, Crawford, PA

Built 1910 Load: 0.0 t ADT: 50

SR 2019 Forge rd.

Poor

Over: YELLOW BREECHES

0.1 MI E OF LR 21014, Cumberland, PA

Built 1962 Load: 0.0 t ADT: 1,523

DEIBLER GAP T-474

Poor

Over: MAHANTANGO CREEK

SEAMAN BRIDGE, Dauphin, PA

Built 1900 Load: 0.0 t

STATION ROAD

Poor

Over: CHESTER CREEK

.8MI.SOUTH PA-926 17-D4, Delaware, PA

Built 1914 Load: 0.0 t ADT: 188

FOLCROFT AVENUE

Poor

Over: AMTRAK (MAIN LINE)

.3 Mi S of Rt 13 3698-F6, Delaware, PA

Built 1918 Load: 0.0 t

T-463 NIEMEYER RD

Poor

Over: LEBOEUF CREEK

1500 FT SE OF SR 505, Erie, PA

Built 1875 Load: 0.0 t

SIMPSON ROAD

Poor

Over: DUNLAP CREEK

SIMPSON STATION, Fayette, PA

Built 1905 Load: 0.0 t ADT: 50

BRAZNELL HILL RD

Poor

Over: REDSTONE CREEK

NEAR BRAZNELL, Fayette, PA

Built 1962 Load: 0.0 t ADT: 400

BROWNSVILLE AVENUE

Poor

Over: DUNLAP CREEK

BROWNSVILLE AVENUE BR, Fayette, PA

Built 1976 Load: 0.0 t ADT: 1,000

CAMP HOLLOW ROAD

Poor

Over: CAMP RUN

PT. MARION BORO OFF 119, Fayette, PA

Built 1921 Load: 0.0 t ADT: 100

TOWNSHIP ROAD 684

Poor

Over: MUDDY CREEK

EAST OF CARMICHAELS, Greene, PA

Built 1892 Load: 0.0 t

TOWNSHIP ROAD 567

Poor

Over: TENMILE CREEK

FRANKLIN MORGAN TWP LINE, Greene, PA

Built 1910 Load: 0.0 t ADT: 1

TOWNSHIP ROAD 648

Poor

Over: TEN MILE CREEK

MORGAN TOWNSHIP, Greene, PA

Built 1902 Load: 0.0 t ADT: 15

T-758 GRACE CHURCH

Poor

Over: TWO LICK CREEK

BTW T756 & SR1006, Indiana, PA

Built 1930 Load: 0.0 t

T-734 CHESTNUT ST

Poor

Over: TROUT RUN

BTW T651 & SR0403, Indiana, PA

Built 1977 Load: 0.0 t

T-353 BOTTOM RD

Poor

Over: MILL RUN

1.2 MILES SE OF SR 4001, Jefferson, PA

Built 1909 Load: 0.0 t ADT: 50

T-396 SELDOM SEEN

Poor

Over: CODER RUN

0.7 MILES NW OF SR 28, Jefferson, PA

Built 1914 Load: 0.0 t ADT: 50

T-381 SHEESLEY RD

Poor

Over: EAST LICKING CREEK

400 SOUTH OF SR 4002, Juniata, PA

Built 1936 Load: 0.0 t ADT: 50

SR 3023 CEDAR AVE

Poor

Over: ROARING BROOK

SCRANTON .2 M S SR 3025, Lackawanna, PA

Built 1958 Load: 0.0 t ADT: 3,570

SR 4036

Poor

Over: FALLS CREEK

NEWTON TWP .5M W SR 4027, Lackawanna, PA

Built 1937 Load: 0.0 t ADT: 2,089

T-304 (PLANK ROAD)

Poor

Over: LEHIGH RIVER

CLIFTON TWP 1 MI SW I-380, Lackawanna, PA

Built 1956 Load: 0.0 t ADT: 40

T-314 ASH GAP ROAD

Poor

Over: SPRING BROOK

3/4 MILE SOUTH OF SR 502, Lackawanna, PA

Built 1956 Load: 0.0 t ADT: 30

6TH AVENUE

Poor

Over: LACKAWANNA RIVER

WEST OF MAIN STREET, Lackawanna, PA

Built 1950 Load: 0.0 t

7TH AVENUE

Poor

Over: LACKAWANNA RIVER

WEST OF MAIN STREET, Lackawanna, PA

Built 1977 Load: 0.0 t ADT: 140

S. WASHINGTON AVE.

Poor

Over: ROARING BROOK

50 FT NORTH OF BIRCH ST, Lackawanna, PA

Built 1969 Load: 0.0 t ADT: 9,761

MYRTLE STREET

Poor

Over: ROARING BROOK

AT RICHTER ST. INTERSECT., Lackawanna, PA

Built 1979 Load: 0.0 t ADT: 1,300

SR 3028

Poor

Over: AMTRAK/NSRC

0.75 MI.N. OF BRIDGEPORT, Lancaster, PA

Built 1961 Load: 0.0 t ADT: 8,195

GARDEN SPOT ROAD

Poor

Over: COCALICO CREEK

3/4 MILE SE OF SR 272, Lancaster, PA

Built 1972 Load: 0.0 t ADT: 300

RADCLIFFE RD T-476

Poor

Over: PEQUEA CREEK

1.1 M SW OF 272, Lancaster, PA

Built 1983 Load: 0.0 t ADT: 120

SPRING GARDEN RD

Poor

Over: PEQUEA CREEK

1 MI SOUTH OF SR 340, Lancaster, PA

Built 1975 Load: 0.0 t ADT: 260

OAK STREET

Poor

Over: CHIQUES CREEK

1400 SE OF SR 4040, Lancaster, PA

Built 1925 Load: 0.0 t

OLD ROUTE 422 RT

Poor

Over: SLIPPERY ROCK CREEK

250 W OF MUDDY CREEK RD, Lawrence, PA

Built 1920 Load: 0.0 t

SR 329(LR 175)

Poor

Over: LEHIGH RIVER

CEMENTON BRIDGE, Lehigh, PA

Built 1933 Load: 0.0 t ADT: 16,272

SR 2041

Poor

Over: BEAR CREEK

BEAR CK TWP 2.2M S TR 115, Luzerne, PA

Built 1962 Load: 0.0 t ADT: 1,233

SLEEPY HOLLOW ROAD

Poor

Over: NESCOPECK CREEK

WEST OF HONEY HOLE/309, Luzerne, PA

Built 1920 Load: 0.0 t ADT: 280

STEPHENSON STREET

Poor

Over: LACKAWANNA RIVER

1500 FT NW OF SR 2031, Luzerne, PA

Built 1959 Load: 0.0 t ADT: 50

T-437 DELMAR ROAD

Poor

Over: OSWAYO CREEK

1000 FT NE OF SR 44, McKean, PA

Built 1908 Load: 0.0 t

BRIDGE 803 OHL ST

Poor

Over: OVER SHENANGO RIVER

OHL ST. GREENVILLE, Mercer, PA

Built 1909 Load: 0.0 t ADT: 3,024

T-391 ERTLEY ROAD

Poor

Over: BELLTOWN RUN

100FT WEST OF T-450, Mifflin, PA

Built 1935 Load: 0.0 t ADT: 200

T-420

Poor

Over: KISH. CREEK

500FT E INTER LR29&T-420, Mifflin, PA

Built 1909 Load: 0.0 t

T-350

Poor

Over: KISHACOQUILLAS CREEK

2800FT NORTH OF T-437, Mifflin, PA

Built 1962 Load: 0.0 t ADT: 841

US 209 BUS.(LR164)

Poor

Over: KETTLE CREEK

SNYDERSVILLE, Monroe, PA

Built 1925 Load: 0.0 t ADT: 7,537

BLAKESLEE RD

Poor

Over: CHERRY CREEK

0.3 MI SOUTH OF SR 2006, Monroe, PA

Built 1977 Load: 0.0 t ADT: 140

GREEN HILL RD

Poor

Over: POHOPOCO CREEK

0.4 M. S OF RT. 209, Monroe, PA

Built 1971 Load: 0.0 t ADT: 106

KEIM STREET

Poor

Over: SCHUYLKILL RIVER

MADISON BRIDGE 3138J3, Montgomery, PA

Built 1935 Load: 0.0 t ADT: 8,408

BERGEYS MILL ROAD

Poor

Over: EAST BR. PERKIOMEN CREEK

BERGEYS MILL RD. 3030-B9, Montgomery, PA

Built 1893 Load: 0.0 t ADT: 175

Showing 20,401-20,450 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.