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-563 RAILROAD ST

Fair

Over: N. BRANCH TWO LICK CREEK

BTW SR1012 & T858, Indiana, PA

Built 1975 Load: 20.9 t ADT: 50

US 222 SB Ramp

Fair

Over: US 30; SR 0030

US 222 S.B. OVER US 30, Lancaster, PA

Built 1969 Load: 20.9 t ADT: 30,684

US 222 SB;SR0222

Fair

Over: CREEK RD AND LITITZ CRK

S OF OREGON IN MANHEIM TP, Lancaster, PA

Built 1972 Load: 20.9 t ADT: 26,428

PA 241; SR 0241

Fair

Over: SR 0300 AND RAMP P;PA283

N OF ETOWN BORO-MT JOY TP, Lancaster, PA

Built 1968 Load: 20.9 t ADT: 2,948

PA 283 EB; SR 0300

Fair

Over: PA 743; SR 0743

N. OF ELIZABETHTOWN, Lancaster, PA

Built 1968 Load: 20.9 t ADT: 22,014

PA 283 WB; SR 0300

Fair

Over: PA 743; SR 0743

N. OF ELIZABETHTOWN, Lancaster, PA

Built 1968 Load: 20.9 t ADT: 22,343

STRICKLR RD; T-364

Fair

Over: SR 0300; PA 283

0.25 MI.W. OF L.R. 36002, Lancaster, PA

Built 1968 Load: 20.9 t ADT: 930

S.STONY BATTERY RD

Fair

Over: US 30; SR 0030

N.SIDE OF MOUNTVILLE, Lancaster, PA

Built 1965 Load: 20.9 t ADT: 6,781

SR 4025 Colebrook

Fair

Over: AMTRAK

Rheems, Lancaster, PA

Built 1987 Load: 20.9 t ADT: 9,367

T-764 COOPER DR

Fair

Over: COOPERS RUN TRIB

1 MI SE OF SR 2014, Lancaster, PA

Built 1991 Load: 20.9 t ADT: 100

I-78 WB; SR 0078

Fair

Over: SWATARA CREEK

2 MI.E. OF I-81, Lebanon, PA

Built 1968 Load: 20.9 t ADT: 14,222

SR1020CATASAUQUARD

Fair

Over: PA 378(LR1007)

CATASAUQUA RD.OVER 378, Lehigh, PA

Built 1967 Load: 20.9 t ADT: 12,971

SR 0011 TR 11

Fair

Over: SR 2035

DUPONT BORO OVER SR 2035, Luzerne, PA

Built 1962 Load: 20.9 t ADT: 5,683

SR 0081 I-81 NB

Fair

Over: TR 315 AIRPORT RD

AVOCA BORO @ EXIT 178, Luzerne, PA

Built 1966 Load: 20.9 t ADT: 28,335

T-686

Fair

Over: ROCK RUN

1.6 MI NE OF GLEN MAWR, Lycoming, PA

Built 1920 Load: 20.9 t ADT: 50

SR 2025 N LIBERTY

Fair

Over: OVER BLACK RUN

LIBERTY TOWNSHIP, Mercer, PA

Built 1952 Load: 20.9 t ADT: 1,643

T-393 DECATUR RD.

Fair

Over: TRIB OF JACKS CREEK

250 FT NORTHEAST OF T460, Mifflin, PA

Built 1935 Load: 20.9 t ADT: 77

PA 191 (LR 169)

Fair

Over: PARADISE CREEK

NEAR INT.PA 715, Monroe, PA

Built 1957 Load: 20.9 t ADT: 4,934

I-380 SB(LR 1002)

Fair

Over: TOBYHANNA CREEK

SOUTH OF EXIT 8(7)-PA.423, Monroe, PA

Built 1969 Load: 20.9 t ADT: 11,202

I-380 NB(LR 1002)

Fair

Over: TOBYHANNA CREEK

SOUTH OF EXIT 8(7)-PA.423, Monroe, PA

Built 1969 Load: 20.9 t ADT: 11,339

SR 2005(LR 45019)

Fair

Over: POCONO CREEK

.2 MILES SOUTH OF I-80, Monroe, PA

Built 1956 Load: 20.9 t ADT: 1,887

T-445 ALTEMOSE DR.

Fair

Over: POHOPOCO CREEK

300 FT.WEST OF T-464, Monroe, PA

Built 1980 Load: 20.9 t ADT: 150

T-603

Fair

Over: PARADISE CREEK

0.5 M.S OF POCONO GARDENS, Monroe, PA

Built 1956 Load: 20.9 t ADT: 157

ARCOLA ROAD

Fair

Over: SKIPPACK CREEK

0.96 MI W of SR 4006, Montgomery, PA

Built 1973 Load: 20.9 t ADT: 3,852

PA 33 NB(LR 1098)

Fair

Over: SR 1012(LR 48087)

BELFAST INTERCHANGE, Northampton, PA

Built 1969 Load: 20.9 t ADT: 21,086

PA 33 SB(LR 1098)

Fair

Over: SR 1012(LR 48087)

BELFAST INTERCHANGE, Northampton, PA

Built 1969 Load: 20.9 t ADT: 19,407

SR 4009

Fair

Over: OVER SHAMOKIN CREEK

1.5 MI EAST OF SUNBURY, Northumberland, PA

Built 1974 Load: 20.9 t ADT: 680

SNOW HILL RD T-317

Fair

Over: SPRUCE RUN

2.9 M W RTE 402, Pike, PA

Built 1940 Load: 20.9 t ADT: 50

I-81 NB (LR 1005)

Fair

Over: READING RBMNRR RAMPS M&U

EXIT 138 (39), Schuylkill, PA

Built 1966 Load: 20.9 t ADT: 15,193

US 209 (LR 199)

Fair

Over: MIDDLE CREEK

TREMONT BORO, Schuylkill, PA

Built 1925 Load: 20.9 t ADT: 2,192

T-380

Fair

Over: BUFFALO CREEK

1.2 Mi NNE OF MIFFLINBURG, Union, PA

Built 1970 Load: 20.9 t ADT: 162

T-462 SMITH ROAD

Fair

Over: LITTLE SCRUBGRASS CREEK

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1900 Load: 20.9 t ADT: 25

MAIN PARK RD

Fair

Over: W BR TIONESTA CREEK

CHAPMAN STATE PARK, Warren, PA

Built 1988 Load: 20.9 t ADT: 20

SR 2007

Fair

Over: BANE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1939 Load: 20.9 t ADT: 121

SR 2061

Fair

Over: NORTH BRANCH FISHPOT RUN

EAST BETHLEHEM TOWNSHIP, Washington, PA

Built 1942 Load: 20.9 t ADT: 350

US 30; SR 0030 EB

Fair

Over: PLEASANT ACRES RD; T-764

1.5 MI.N. OF SR 0462, York, PA

Built 1970 Load: 20.9 t ADT: 23,734

US 30; SR 0030 WB

Fair

Over: PLEASANT ACRE RD; T-764

1 MI N OF LR128, York, PA

Built 1970 Load: 20.9 t ADT: 23,016

PA 216; BLOOMINGGR

Fair

Over: W BR CODORUS; L. MARBURG

LAKE MARBURG, York, PA

Built 1967 Load: 20.9 t ADT: 7,779

PA 216; BLOOMINGGR

Fair

Over: LAKE MARBURG

LAKE MARBURG, York, PA

Built 1967 Load: 20.9 t ADT: 6,715

Sheep Bridge Road

Fair

Over: Conewago Creek

1 MILE WEST OF I83, York, PA

Built 1889 Load: 20.9 t ADT: 270

HILL VIEW RD.

Fair

Over: KREUTZ CREEK

E.OF HALLAM/KREUTZ CREEK, York, PA

Built 1956 Load: 20.9 t ADT: 806

DELAWARE EXPWAY.

Fair

Over: ALLEGHENY AVENUE

NEAR WISHART STR. 3591D03, Philadelphia, PA

Built 1968 Load: 20.9 t ADT: 154,122

KNIGHTS ROAD

Fair

Over: WOODHAVEN RD

FRANKLIN MILLS MAL3373E07, Philadelphia, PA

Built 1965 Load: 20.9 t ADT: 14,010

WALNUT LANE

Fair

Over: WISSAHICKON CREEK

CHESTNUT HILL 3479 H05, Philadelphia, PA

Built 1907 Load: 20.9 t ADT: 16,571

STRAWBERRY MANSION

Fair

Over: SKL RIV KELLY W RIV STDR

STRAWBERRY MANSION 3589J1, Philadelphia, PA

Built 1897 Load: 20.9 t ADT: 12,580

SR 0070

Fair

Over: SR 3003 ROSS ST SPEER RN

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 2000 Load: 20.9 t ADT: 42,878

FORT DUQ BR (LOW)

Fair

Over: FT DUQ BRDG NB ALLEGH R

Fort Duquesne Bridge, Allegheny, PA

Built 1959 Load: 20.9 t ADT: 18,158

KRIEBEL ROAD

Fair

Over: TRIB. TOWAMENCIN CREEK

0.2MI E OF BUSTARD RD, Montgomery, PA

Built 1970 Load: 20.9 t ADT: 3,000

PA 873 (LR 163)

Fair

Over: LEHIGH RIVER & N/S RR

LEHIGH GAP BRIDGE, Lehigh, PA

Built 1930 Load: 21.4 t ADT: 9,323

FR 119

Fair

Over: EAST HICKORY CREEK

S OF MCKEAN CRNS. FR119, Warren, PA

Built 1932 Load: 21.4 t ADT: 15

Showing 801-850 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.