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

SR 99 MAIN STREET

Poor

Over: OVER ELK CREEK

MCKEAN BOROUGH, Erie, PA

Built 1952 Load: 48.1 t ADT: 6,860

FLANIGAN ROAD

Poor

Over: HEN RUN

NEAR YOUGH DAM, Fayette, PA

Built 1910 Load: 48.1 t ADT: 25

PA 741; SR 0741

Poor

Over: AMTRAK/NSRC

0.25 MI.S. OF TR 283, Lancaster, PA

Built 1969 Load: 48.1 t ADT: 15,336

MR 0315 TR 315

Poor

Over: READING BLUEMT& NORTHERN

LAFLIN BORO JCT SR 2017, Luzerne, PA

Built 1984 Load: 48.1 t ADT: 14,417

SR 2005 BLACKMAN

Poor

Over: LUZ CO RAIL AUTHORITY

WLKS BRE C .6 M W SR 2010, Luzerne, PA

Built 1965 Load: 48.1 t ADT: 10,151

SCHUYLKILL EXPWAY.

Poor

Over: MATSONFORD ROAD

1MI.W.CONSHOHOCK. 35B05, Montgomery, PA

Built 1950 Load: 48.1 t ADT: 68,760

SR 3016; TWP RD

Poor

Over: TRIB SHERMANS CREEK

1 MI W OF SHERMANDALE, Perry, PA

Built 1919 Load: 48.1 t ADT: 647

SR 4013

Poor

Over: CORK HILL CREEK

APOLACON TP .2 M E TR 858, Susquehanna, PA

Built 1954 Load: 48.1 t ADT: 198

SIKO ROAD

Poor

Over: BIG BROOK

350 FT EAST OF SR 191, Wayne, PA

Built 1970 Load: 48.1 t ADT: 35

MAPLE STREET

Poor

Over: BEAVER RUN

0.75 MILES SE OF NOXEN, Wyoming, PA

Built 1943 Load: 48.1 t ADT: 150

SR 2039

Poor

Over: OTTER CREEK

1 MI.S. NEW BRIDGEVILLE, York, PA

Built 1950 Load: 48.1 t ADT: 111

84TH STR & HOOK RD

Poor

Over: DARBY CREEK

SW.PHILA/DARBY TWP3698K07, Philadelphia, PA

Built 1974 Load: 48.1 t ADT: 26,533

RIDGE AVENUE

Poor

Over: AMTRAK MAIN LINE N-S

.1MI SE.29TH ST. 3590B03, Philadelphia, PA

Built 1918 Load: 48.1 t ADT: 9,249

GERMANTOWN AVENUE

Poor

Over: CONRAIL;RICHMOND BRANCH

HUNTING PARK AVE.3480E07, Philadelphia, PA

Built 1960 Load: 48.1 t ADT: 10,502

COTTAGE AVENUE

Poor

Over: PENNYPACK CREEK

NEAR BLAIR MILL RD3258-K2, Montgomery, PA

Built 1932 Load: 48.1 t ADT: 1,000

HEPLER ROAD

Poor

Over: LITTLE MAHANTANGO CREEK

INTERSECTION W/ VALLEY RD, Schuylkill, PA

Built 2009 Load: 48.1 t ADT: 400

SR 3002

Poor

Over: TRIB ROCK CREEK

2 MI. S.W. OF BARLOW, Adams, PA

Built 1940 Load: 49.0 t ADT: 612

MILROY ST

Poor

Over: I-279(LR 1021)NB SB&HOV

136 Milroy St Bridge, Allegheny, PA

Built 1986 Load: 49.0 t ADT: 300

FREY RD

Poor

Over: THOMPSON RUN

150 WEST OF SR 2065, Allegheny, PA

Built 1906 Load: 49.0 t ADT: 1,858

MCARDLE RDWY RD

Poor

Over: SYCAMORE STREET

053 PJ McArdle Rdwy Bridg, Allegheny, PA

Built 1983 Load: 49.0 t ADT: 11,000

LEGION DR

Poor

Over: TRIB TO LITTLE SWATARA

EAST OF BETHEL N.OF T721, Berks, PA

Built 1950 Load: 49.0 t ADT: 93

ON TSR 337

Poor

Over: BENNETT BRANCH

TYLER, Clearfield, PA

Built 1900 Load: 49.0 t ADT: 139

T-609 AGNEW ROAD

Poor

Over: OVER CONNEAUT CREEK

SUMMIT TOWNSHIP, Crawford, PA

Built 1920 Load: 49.0 t ADT: 250

I-81 NB

Poor

Over: LUZ CO RAIL AUTHORITY

ASHLEY BO .5M N EXIT 165, Luzerne, PA

Built 1966 Load: 49.0 t ADT: 24,394

CROASDALE RD T-420

Poor

Over: CHERRY CREEK

750FT.SOUTH OF LR 45010, Monroe, PA

Built 1940 Load: 49.0 t ADT: 27

CREAMERY ROAD

Poor

Over: BUSHKILL CREEK

1 MILE EAST OF PA 512, Northampton, PA

Built 1959 Load: 49.0 t ADT: 180

PARK PLACE ROAD

Poor

Over: N. MAHANOY CREEK

PARK PLACE RD N.OF M.C., Schuylkill, PA

Built 1960 Load: 49.0 t ADT: 1,300

T-561 NORTH ROAD

Poor

Over: OVER LT. BROKENSTRAW CK.

FREEHOLD TOWNSHIP, Warren, PA

Built 1920 Load: 49.0 t ADT: 100

T-395 MARSHIANNE H

Poor

Over: OVER GARLAND RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1940 Load: 49.0 t ADT: 100

83

Poor

Over: 181 George St

EXIT-22 I-83 & PA 181, York, PA

Built 1957 Load: 49.0 t ADT: 64,412

SR 2039 DUNHAM ST.

Poor

Over: OVER CUSSEWAGO CREEK

VERNON TOWNSHIP, Crawford, PA

Built 1950 Load: 49.9 t ADT: 2,605

T-683 MAIN ST

Poor

Over: MAHONING RIVER TRIB

0.75 MI NW T-326, Lawrence, PA

Built 1950 Load: 49.9 t ADT: 1,000

SR 0590 TR 590

Poor

Over: SWAMP BROOK CREEK

LACKAWAX TWP 64 E SR4010, Pike, PA

Built 1958 Load: 49.9 t ADT: 2,932

SR 3016

Poor

Over: LITTLE SEWICKLEY CREEK

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1926 Load: 49.9 t ADT: 659

RP B FROM W CARSON

Poor

Over: SR 0837 NB SB

Fort Pitt Bridge, Allegheny, PA

Built 1959 Load: 50.8 t ADT: 8,106

CREAMERY ROAD

Poor

Over: TOHICKON CREEK

1MI.W.TR611-OTTSV. 10E10, Bucks, PA

Built 1932 Load: 50.8 t ADT: 894

KING ROAD

Poor

Over: HERKAKEN CREEK

0.2MI SW SR0313 2922-C5, Bucks, PA

Built 1912 Load: 50.8 t ADT: 500

SR 1009

Poor

Over: CASTILE RUN

MORGAN TOWNSHIP, Greene, PA

Built 1921 Load: 50.8 t ADT: 196

SR 8005 RAMP A

Poor

Over: SR 8005 RAMP C

SCR C SR8005 RMP A OVER C, Lackawanna, PA

Built 1966 Load: 50.8 t ADT: 4,812

MCCONNELL ROAD

Poor

Over: SLIPPERY ROCK CREEK

ECKERT BR MC MILL PARK, Lawrence, PA

Built 1954 Load: 50.8 t ADT: 62

SR 4001

Poor

Over: BRANCH HUNLOCK CREEK

HUNLOCK TWP 1 M N SR 4016, Luzerne, PA

Built 1949 Load: 50.8 t ADT: 189

SOUTH EMPIRE ST.

Poor

Over: SPRING RUN

S. EMPIRE ST & SPRING RUN, Luzerne, PA

Built 1972 Load: 50.8 t ADT: 1,400

BRIDGE 2716 T-413

Poor

Over: OVER BLACK RUN

DAUGHERTY ROAD PINE TWP., Mercer, PA

Built 1983 Load: 50.8 t ADT: 592

SILVER ST. BR 2313

Poor

Over: OVER SHENANGO RIVER

SILVER ST SHARON, Mercer, PA

Built 1983 Load: 50.8 t ADT: 5,513

SR 0221

Poor

Over: BUFFALO CREEK

BLAINE TOWNSHIP, Washington, PA

Built 1949 Load: 50.8 t ADT: 116

GIPE ROAD

Poor

Over: OTTER CREEK

2.8NW SGL#83/OTTER CREEK, York, PA

Built 1977 Load: 50.8 t ADT: 410

S.CHURCH STREET

Poor

Over: SOUTH BRANCH RAMBO RUN X

2E X-RDS/S.BR.RAMBO RUN, York, PA

Built 1933 Load: 50.8 t ADT: 193

T-305 JERICHO RD

Poor

Over: CONNEAUTTEE CREEK

1 MI N OF DRAKES MILLS, Crawford, PA

Built 2002 Load: 50.8 t ADT: 100

OLD LINCOLN HIGHWY

Poor

Over: NESHAMINY CREEK/ 3261-G7

.4MI. LR 09006 41G03, Bucks, PA

Built 1921 Load: 51.7 t ADT: 6,507

ON TSR 966

Poor

Over: HALF MOON CREEK

MARENGO, Centre, PA

Built 1908 Load: 51.7 t ADT: 429

Showing 23,101-23,150 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.