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 3012

Fair

Over: OVER ROARING CREEK

4 MI W OF CATAWISSA BORO, Columbia, PA

Built 1966 Load: 20.0 t ADT: 451

SR 4001 BEAVER CNT

Fair

Over: OVER CONNEAUT CREEK E BR

BEAVER TOWNSHIP, Crawford, PA

Built 1961 Load: 20.0 t ADT: 408

SR 4009 MOSIERTOWN

Fair

Over: OVER SR 79 NB/SB

HAYFIELD TOWNSHIP, Crawford, PA

Built 1969 Load: 20.0 t ADT: 1,165

I-81 NB; SR 0081

Fair

Over: Letort Spring & Trail

0.2 MI.N. OF PA 34, Cumberland, PA

Built 1962 Load: 20.0 t ADT: 27,794

114 Willow Mill Rd

Fair

Over: 81

WERTZVILLE, Cumberland, PA

Built 1969 Load: 20.0 t ADT: 21,985

SR 2007 DEODATE RD

Fair

Over: SR 0300

4 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 Load: 20.0 t ADT: 1,299

SR 3006

Fair

Over: SR 0283 & SR 3001

S.OF PENN HARRIS INT., Dauphin, PA

Built 1970 Load: 20.0 t ADT: 12,836

INTERSTATE 95 (NB)

Fair

Over: MARKET STREET

UPPER CHICHESTER 42H08, Delaware, PA

Built 1966 Load: 20.0 t ADT: 49,097

T-690 MALBETT PL

Fair

Over: TWELVE MILE CREEK

AT SR 1006 INTERSECT, Erie, PA

Built 1960 Load: 20.0 t ADT: 35

SR 2011

Fair

Over: FIKE RUN

WHARTON TOWNSHIP, Fayette, PA

Built 1942 Load: 20.0 t ADT: 479

PA 233; rocky mtn.

Fair

Over: ROCKY MT CR

CALEDONIA, Franklin, PA

Built 1948 Load: 20.0 t ADT: 1,349

T-322 DOBBS RD

Fair

Over: WILLOW RUN

.5 MI SE OF INT SR 3014, Juniata, PA

Built 1984 Load: 20.0 t ADT: 50

TR 11 SPRUCE ST

Fair

Over: SR 8025

CTY SCRANTON SPRUCE COMPL, Lackawanna, PA

Built 1969 Load: 20.0 t ADT: 33,410

SR 4053/Druid Hill

Fair

Over: US 30; SR 0030

N. OF MOUNTVILLE BORO., Lancaster, PA

Built 1965 Load: 20.0 t ADT: 2,040

US 222 NB; SR 0222

Fair

Over: US 30; SR 0030

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

Built 1969 Load: 20.0 t ADT: 31,278

PA 472 Kirkwood Pk

Fair

Over: W. Br. Octoraro Creek

1 MI. N. of Puseyville, Lancaster, PA

Built 1967 Load: 20.0 t ADT: 5,530

US 0422 WB

Fair

Over: SR 0018 NB SB CEDAR ST

@ INT W/ SR 0018, Lawrence, PA

Built 1972 Load: 20.0 t ADT: 6,190

SR 4013 PLEAS.VW

Fair

Over: I-81; SR 0081

1 MI.E. OF EXIT 80, Lebanon, PA

Built 1967 Load: 20.0 t ADT: 245

PA309 (LR 226)

Fair

Over: MILL CREEK

1.7 MI.N.OF PA873, Lehigh, PA

Built 1962 Load: 20.0 t ADT: 4,479

SHIMERVILLE ROAD

Fair

Over: LEIBERTS CREEK

WEST OF PA AVENUE EMMAUS, Lehigh, PA

Built 1987 Load: 20.0 t ADT: 2,100

T-270

Fair

Over: GREGS RUN

0.7 MI. SE OF HUGHSVILLE, Lycoming, PA

Built 1970 Load: 20.0 t ADT: 200

SR 173 GROVE CITY

Fair

Over: OVER WOLF CREEK TRIB

PINE TOWNSHIP, Mercer, PA

Built 1930 Load: 20.0 t ADT: 3,657

MOORE ROAD T-102

Fair

Over: TROUT CREEK

0.4MI SE of SR23 3366-E5, Montgomery, PA

Built 1965 Load: 20.0 t ADT: 7,000

SR 3003

Fair

Over: BEAVER RUN

2MI.W OF MOORESBURG, Montour, PA

Built 1909 Load: 20.0 t ADT: 376

PA 191(APPL.1019)

Fair

Over: BUSHKILL CREEK

NEAR BORO LINE, Northampton, PA

Built 1970 Load: 20.0 t ADT: 7,554

PA 191(APPL.1019)

Fair

Over: PA 33(LR 1098)

PA33 INTERCHANGE, Northampton, PA

Built 1970 Load: 20.0 t ADT: 12,695

SR 1006 (LR 48095)

Fair

Over: PA 33(LR 1098)

FILETOWN RD.OVER PA.33, Northampton, PA

Built 1970 Load: 20.0 t ADT: 967

BRODHEAD ROAD

Fair

Over: MONOCACY CREEK

AT SR 191 & 22, Northampton, PA

Built 1970 Load: 20.0 t ADT: 12,000

CREEK ROAD

Fair

Over: MONOCACY CREEK

WEST OF PA 987, Northampton, PA

Built 1976 Load: 20.0 t ADT: 200

CANAL STREET

Fair

Over: HOKENDAUQUA CREEK

OUTLET TO LEHIGH RIVER, Northampton, PA

Built 1983 Load: 20.0 t ADT: 350

LOWER BUCK RIDGE R

Fair

Over: SHERMAN CREEK

1 S.GRMNTWN/SHRMN CREEK, Perry, PA

Built 1891 Load: 20.0 t ADT: 100

I-81 SB (LR 1005)

Fair

Over: SR 3013 (LR 53029)

RAVINE, Schuylkill, PA

Built 1969 Load: 20.0 t ADT: 10,615

SR 0081 I-81 NB

Fair

Over: SR 0171 TR 171 EXIT 230

GREAT BEND TWP OVER TR171, Susquehanna, PA

Built 1961 Load: 20.0 t ADT: 9,678

SR 4017

Fair

Over: OVER LOSEY CREEK

1.5 MI NW OF KEENEYVILLE, Tioga, PA

Built 1979 Load: 20.0 t ADT: 479

SR 2027

Fair

Over: SOUTH BR. OF MAPLE CREEK

TWILIGHT BOROUGH, Washington, PA

Built 1958 Load: 20.0 t ADT: 4,375

SR 4051

Fair

Over: CHARTIERS CREEK

CANTON TOWNSHIP, Washington, PA

Built 1970 Load: 20.0 t ADT: 2,678

LEATHERMAN BRIDGE

Fair

Over: PIGEON CREEK trib

1000 EAST OF TWP RD 447, Washington, PA

Built 1890 Load: 20.0 t ADT: 150

EBENEZER BRIDGE

Fair

Over: MINGO CREEK

MINGO CREEK COUNTY PARK, Washington, PA

Built 1949 Load: 20.0 t ADT: 200

SR 2043

Fair

Over: FOURMILE RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1961 Load: 20.0 t ADT: 573

CROWFOOT RD

Fair

Over: HAYMAKER RUN

AT SR 4033 INTERSECTION, Westmoreland, PA

Built 1975 Load: 20.0 t ADT: 2,000

SHIPPENSBURG ROAD

Fair

Over: MUD RUN

1.3 SW KRALLTOWN/MUD RUN, York, PA

Built 1966 Load: 20.0 t ADT: 68

DELAWARE EXPWAY.

Fair

Over: CSX RAILROAD

EAST BROAD STREET 3700D07, Philadelphia, PA

Built 1972 Load: 20.0 t ADT: 153,403

I-76

Fair

Over: I-676 SB I-95 & DEL RIV

GLOUCESTER CITY, Beaver, PA

Built 1957 Load: 20.0 t ADT: 110,000

RAMP A-DE

Fair

Over: INTERSTATE 95;FRONT ST.

WALT WHITMAN BRG. 3700F05, Philadelphia, PA

Built 1973 Load: 20.0 t ADT: 19,148

US 30 WB; Arsenal

Fair

Over: CODORUS CREEK

0.3 MI E OF I-83, York, PA

Built 1969 Load: 20.0 t ADT: 19,855

DAM ROAD

Fair

Over: ABANDONED RAILROAD

PYMATUNING STATE PARK, Crawford, PA

Built 1968 Load: 20.0 t ADT: 280

LOUISIANA AVE

Fair

Over: SMALL STREAM

S OF KENTUCKY AVE EXT, Franklin, PA

Built 1942 Load: 20.7 t ADT: 40

US 15 SB; SR 0015

Fair

Over: CONEWAGO CREEK

2 MI. S. OF HEIDLERSBURG, Adams, PA

Built 1967 Load: 20.9 t ADT: 8,489

ROUTE 28 N.B.

Fair

Over: SR 1034 -BULL CREEK ROAD

TARENTUM INTERCHANGE, Allegheny, PA

Built 1984 Load: 20.9 t ADT: 14,091

BULL CREEK ROAD

Fair

Over: BULL CREEK

1200 N.W. OF SR 1033, Allegheny, PA

Built 1982 Load: 20.9 t ADT: 2,306

Showing 701-750 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.