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

SR0310

Fair

Over: SOLDIER RUN

REYNOLDSVILLE NO.2, Jefferson, PA

Built 1940 Load: 49.9 t ADT: 1,456

SR 1007

Fair

Over: MAHANTANGO CREEK

RICHFIELD, Juniata, PA

Built 1953 Load: 49.9 t ADT: 608

PA 462; SR 0462

Fair

Over: Norfolk Southern RR

MOUNTVILLE BOROUGH, Lancaster, PA

Built 1930 Load: 49.9 t ADT: 10,198

1003 Quarry Rd

Fair

Over: CONESTOGA RIVER

1 MI.S.E. OF OREGON, Lancaster, PA

Built 1952 Load: 49.9 t ADT: 2,941

SR 1044 (TWP ROAD)

Fair

Over: MUDDY CREEK

0.5 MI. S. OF RED RUN, Lancaster, PA

Built 1961 Load: 49.9 t ADT: 1,134

T-365 FAIRVIEW RD

Fair

Over: BOWERY RUN

25 FT NORTH OF SR 2015, Lancaster, PA

Built 1993 Load: 49.9 t ADT: 35

MILL ROAD (T-884)

Fair

Over: CHIQUES CREEK

0.5 MI. EAST OF T-374, Lancaster, PA

Built 1989 Load: 49.9 t ADT: 415

S BARBARA ST

Fair

Over: AMTRAK

300 FT SOUTH OF SR 230, Lancaster, PA

Built 1993 Load: 49.9 t ADT: 390

PA TPK (I-376)

Fair

Over: T-409

NORTH BEAVER TWP., Lawrence, PA

Built 1992 Load: 49.9 t ADT: 9,871

4018 Boundary Rd

Fair

Over: INDIANTOWN RUN

INDIANTN. GAP M.R., Lebanon, PA

Built 1942 Load: 49.9 t ADT: 478

NORTH 10TH STREET

Fair

Over: QUITTAPAHILLA CREEK

350 NORTH OF WILLOW ST, Lebanon, PA

Built 1985 Load: 49.9 t ADT: 3,000

US 22(LR 771)

Fair

Over: T-616(WHITEHALL AVE.)

US 22 OVER WHITEHALL AVE., Lehigh, PA

Built 1953 Load: 49.9 t ADT: 76,351

PA309 (LR153)

Fair

Over: TUMBLE BROOK

0.4 MI.S.OF SR 2028, Lehigh, PA

Built 1970 Load: 49.9 t ADT: 31,148

T-471

Fair

Over: PA TPK (I-476)

EMMAUS BOROUGH, Lehigh, PA

Built 1955 Load: 49.9 t ADT: 200

SR0222 LR157

Fair

Over: PA TPK (I-476)

ALLENTOWN, Lehigh, PA

Built 1956 Load: 49.9 t ADT: 30,181

SR 0011 TR 11

Fair

Over: ABANDONED RAILROAD

PLYMOUTH TWP .1 M E TR 29, Luzerne, PA

Built 1957 Load: 49.9 t ADT: 5,619

I 180 WB

Fair

Over: W.B. OVER S.R. 405

1 MI E OF MUNCY, Lycoming, PA

Built 1973 Load: 49.9 t ADT: 6,914

SR 2022

Fair

Over: OVER MILL CREEK

VILLAGE OF WARRENSVILLE, Lycoming, PA

Built 1984 Load: 49.9 t ADT: 814

SR 446-PA 446

Fair

Over: ALLEGHENY RIVER

1 MI S LARABEE, McKean, PA

Built 1986 Load: 49.9 t ADT: 1,771

SR 3032 CONNELY BL

Fair

Over: OVER SHENANGO RIVER

CITY OF SHARON, Mercer, PA

Built 1968 Load: 49.9 t ADT: 7,324

BRIDGE 2325 T-461

Fair

Over: OVER BOBBY RUN

ROMBOLD RD. HERMITAGE, Mercer, PA

Built 1958 Load: 49.9 t ADT: 1,027

SCHUYLKILL EWAY EB

Fair

Over: RAMPS R & N & X

CONSHOHOCKEN INTER.35D04, Montgomery, PA

Built 1975 Load: 49.9 t ADT: 36,060

SWAMP CREEK RD

Fair

Over: UNAMI CREEK

S.BUCKS CO LN. 2917J07, Montgomery, PA

Built 1910 Load: 49.9 t ADT: 336

E VALLEY GREEN RD

Fair

Over: SANDY RUN

FORT WASHINGTON 3369H01, Montgomery, PA

Built 1994 Load: 49.9 t ADT: 3,559

BLACK ROCK ROAD

Fair

Over: TRACKS REMOVED

NEAR AUDUBON 27D04/3253H9, Montgomery, PA

Built 1976 Load: 49.9 t ADT: 7,509

MAIN STREET

Fair

Over: NS MP 34.71 / 3139J07

LINFIELD;LIMERICK 3139J07, Montgomery, PA

Built 1968 Load: 49.9 t ADT: 7,599

MARSHALL STREET

Fair

Over: STONY CREEK

200"SE.OF TR2025 3367-E2, Montgomery, PA

Built 1982 Load: 49.9 t ADT: 12,000

RAMPS P & R

Fair

Over: MATSONFORD RD DEHAVEN ST

CONSHOHOCKEN INTER3367J10, Montgomery, PA

Built 1975 Load: 49.9 t ADT: 4,346

SR 2017 (LR 48019)

Fair

Over: SR 22 (LR 773)

13TH ST.INTERCHANGE, Northampton, PA

Built 1954 Load: 49.9 t ADT: 7,904

PA 850; SR 0850

Fair

Over: FISHING RUN

2 MI. E. SHERMANSDALE, Perry, PA

Built 1962 Load: 49.9 t ADT: 1,548

ERNEST RD

Fair

Over: MUDDY RUN

1.2 SE LOYSVILLE/MUDDY, Perry, PA

Built 1950 Load: 49.9 t ADT: 100

PINE FLATS ROAD

Fair

Over: MIDDLE BR BUSHKILL CREEK

2 MI. WEST OF SR 402, Pike, PA

Built 1936 Load: 49.9 t ADT: 20

PA 61 (LR 718)

Fair

Over: MAHANOY CREEK

ASHLAND, Schuylkill, PA

Built 1940 Load: 49.9 t ADT: 5,676

PA 601

Fair

Over: BARCLAY RUN

SOMERSET BOROUGH, Somerset, PA

Built 1942 Load: 49.9 t ADT: 12,782

SR 3001

Fair

Over: McCLINTOCK RUN

1 MI.S.OF FORT HILL, Somerset, PA

Built 1935 Load: 49.9 t ADT: 185

SR 3047

Fair

Over: LAUREL HILL CREEK

URSINA BOROUGH, Somerset, PA

Built 1941 Load: 49.9 t ADT: 706

PA TPK (I76) EB

Fair

Over: SR 1015; (LR55051)

WEST OF NEW BALTIMORE, Somerset, PA

Built 1980 Load: 49.9 t ADT: 30,600

SR 948

Fair

Over: OVER TIONESTA CREEK S BR

SHEFFIELD TOWNSHIP, Warren, PA

Built 1940 Load: 49.9 t ADT: 1,101

T-300 GOULDTOWN RD

Fair

Over: OVER STOREHOUSE RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1989 Load: 49.9 t ADT: 140

SR 0070

Fair

Over: SR 0040

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 Load: 49.9 t ADT: 19,947

SR 0070

Fair

Over: SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 49.9 t ADT: 26,519

SR 2065

Fair

Over: BARNEYS RUN

CENTERVILLE BOROUGH, Washington, PA

Built 1984 Load: 49.9 t ADT: 415

Hahn Road

Fair

Over: CHARTIERS CREEK

200 EAST OF SR 1002, Washington, PA

Built 1988 Load: 49.9 t ADT: 100

HENRY COVERED BRDG

Fair

Over: MINGO CREEK

MINGO CREEK COUNTY PARK, Washington, PA

Built 1881 Load: 49.9 t ADT: 300

SOUTHPOINTE BLVD.

Fair

Over: CHARTIERS CREEK

WESTERN CENTER ENTRANCE, Washington, PA

Built 1990 Load: 49.9 t ADT: 500

SR 4012

Fair

Over: SHADIGEE CREEK

STARRUCA BO .5M E SR 4039, Wayne, PA

Built 1987 Load: 49.9 t ADT: 221

SR 0030

Fair

Over: SR 3077

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1939 Load: 49.9 t ADT: 26,767

SR 0119

Fair

Over: T`PIKE T-547 & WILSON R

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1975 Load: 49.9 t ADT: 14,236

SR 0119

Fair

Over: T`PIKE T-547 & WILSON R

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1975 Load: 49.9 t ADT: 13,819

T-339

Fair

Over: PA TPK (I-76)

NEAR FRANKLIN, Westmoreland, PA

Built 2000 Load: 49.9 t ADT: 240

Showing 10,601-10,650 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.